Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
	net/bluetooth/l2cap_core.c

Just two overlapping changes, one added an initialization of
a local variable, and another change added a new local variable.

Signed-off-by: David S. Miller <davem@davemloft.net>

194 files changed, 3794 insertions, 2006 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 6bdedd7cca2c..cf047c406d92 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -820,7 +820,7 @@ config PATA_PLATFORM
 
 config PATA_OF_PLATFORM
         tristate "OpenFirmware platform device PATA support"
-        depends on PATA_PLATFORM && OF
+        depends on PATA_PLATFORM && OF && OF_IRQ
         help
           This option enables support for generic directly connected ATA
           devices commonly found on embedded systems with OpenFirmware
diff --git a/drivers/base/core.c b/drivers/base/core.c
index d8b3d89db043..919daa7cd5b1 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1743,8 +1743,10 @@ void device_shutdown(void)
                  */
                 list_del_init(&dev->kobj.entry);
                 spin_unlock(&devices_kset->list_lock);
-                /* Disable all device's runtime power management */
-                pm_runtime_disable(dev);
+
+                /* Don't allow any more runtime suspends */
+                pm_runtime_get_noresume(dev);
+                pm_runtime_barrier(dev);
 
                 if (dev->bus && dev->bus->shutdown) {
                         dev_dbg(dev, "shutdown\n");
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 8004ac30a7a8..587cce57adae 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2601,6 +2601,8 @@ static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
                         c->Request.Timeout = 0;
                         c->Request.CDB[0] = BMIC_WRITE;
                         c->Request.CDB[6] = BMIC_CACHE_FLUSH;
+                        c->Request.CDB[7] = (size >> 8) & 0xFF;
+                        c->Request.CDB[8] = size & 0xFF;
                         break;
                 case TEST_UNIT_READY:
                         c->Request.CDBLen = 6;
@@ -4880,7 +4882,7 @@ static int cciss_request_irq(ctlr_info_t *h,
 {
         if (h->msix_vector || h->msi_vector) {
                 if (!request_irq(h->intr[h->intr_mode], msixhandler,
-                                IRQF_DISABLED, h->devname, h))
+                                0, h->devname, h))
                         return 0;
                 dev_err(&h->pdev->dev, "Unable to get msi irq %d"
                         " for %s\n", h->intr[h->intr_mode],
@@ -4889,7 +4891,7 @@ static int cciss_request_irq(ctlr_info_t *h,
         }
 
         if (!request_irq(h->intr[h->intr_mode], intxhandler,
-                        IRQF_DISABLED, h->devname, h))
+                        IRQF_SHARED, h->devname, h))
                 return 0;
         dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n",
                 h->intr[h->intr_mode], h->devname);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 68b205a9338f..1e888c9e85b3 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -422,7 +422,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
 
                 /*
                  * We use punch hole to reclaim the free space used by the
-                 * image a.k.a. discard. However we do support discard if
+                 * image a.k.a. discard. However we do not support discard if
                  * encryption is enabled, because it may give an attacker
                  * useful information.
                  */
@@ -797,7 +797,7 @@ static void loop_config_discard(struct loop_device *lo)
         }
 
         q->limits.discard_granularity = inode->i_sb->s_blocksize;
-        q->limits.discard_alignment = inode->i_sb->s_blocksize;
+        q->limits.discard_alignment = 0;
         q->limits.max_discard_sectors = UINT_MAX >> 9;
         q->limits.discard_zeroes_data = 1;
         queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 65cc424359b0..148ab944378d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -183,10 +183,6 @@ static LIST_HEAD(rbd_client_list);      /* clients */
 
 static int __rbd_init_snaps_header(struct rbd_device *rbd_dev);
 static void rbd_dev_release(struct device *dev);
-static ssize_t rbd_snap_rollback(struct device *dev,
-                                 struct device_attribute *attr,
-                                 const char *buf,
-                                 size_t size);
 static ssize_t rbd_snap_add(struct device *dev,
                             struct device_attribute *attr,
                             const char *buf,
@@ -461,6 +457,10 @@ static int rbd_header_from_disk(struct rbd_image_header *header,
         u32 snap_count = le32_to_cpu(ondisk->snap_count);
         int ret = -ENOMEM;
 
+        if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT))) {
+                return -ENXIO;
+        }
+
         init_rwsem(&header->snap_rwsem);
         header->snap_names_len = le64_to_cpu(ondisk->snap_names_len);
         header->snapc = kmalloc(sizeof(struct ceph_snap_context) +
@@ -1356,32 +1356,6 @@ fail:
 }
 
 /*
- * Request sync osd rollback
- */
-static int rbd_req_sync_rollback_obj(struct rbd_device *dev,
-                                     u64 snapid,
-                                     const char *obj)
-{
-        struct ceph_osd_req_op *ops;
-        int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_ROLLBACK, 0);
-        if (ret < 0)
-                return ret;
-
-        ops[0].snap.snapid = snapid;
-
-        ret = rbd_req_sync_op(dev, NULL,
-                               CEPH_NOSNAP,
-                               0,
-                               CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK,
-                               ops,
-                               1, obj, 0, 0, NULL, NULL, NULL);
-
-        rbd_destroy_ops(ops);
-
-        return ret;
-}
-
-/*
  * Request sync osd read
  */
 static int rbd_req_sync_exec(struct rbd_device *dev,
@@ -1610,8 +1584,13 @@ static int rbd_read_header(struct rbd_device *rbd_dev,
                         goto out_dh;
 
                 rc = rbd_header_from_disk(header, dh, snap_count, GFP_KERNEL);
-                if (rc < 0)
+                if (rc < 0) {
+                        if (rc == -ENXIO) {
+                                pr_warning("unrecognized header format"
+                                           " for image %s", rbd_dev->obj);
+                        }
                         goto out_dh;
+                }
 
                 if (snap_count != header->total_snaps) {
                         snap_count = header->total_snaps;
@@ -1882,7 +1861,6 @@ static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL);
 static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh);
 static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL);
 static DEVICE_ATTR(create_snap, S_IWUSR, NULL, rbd_snap_add);
-static DEVICE_ATTR(rollback_snap, S_IWUSR, NULL, rbd_snap_rollback);
 
 static struct attribute *rbd_attrs[] = {
         &dev_attr_size.attr,
@@ -1893,7 +1871,6 @@ static struct attribute *rbd_attrs[] = {
         &dev_attr_current_snap.attr,
         &dev_attr_refresh.attr,
         &dev_attr_create_snap.attr,
-        &dev_attr_rollback_snap.attr,
         NULL
 };
 
@@ -2424,64 +2401,6 @@ err_unlock:
         return ret;
 }
 
-static ssize_t rbd_snap_rollback(struct device *dev,
-                                 struct device_attribute *attr,
-                                 const char *buf,
-                                 size_t count)
-{
-        struct rbd_device *rbd_dev = dev_to_rbd(dev);
-        int ret;
-        u64 snapid;
-        u64 cur_ofs;
-        char *seg_name = NULL;
-        char *snap_name = kmalloc(count + 1, GFP_KERNEL);
-        ret = -ENOMEM;
-        if (!snap_name)
-                return ret;
-
-        /* parse snaps add command */
-        snprintf(snap_name, count, "%s", buf);
-        seg_name = kmalloc(RBD_MAX_SEG_NAME_LEN + 1, GFP_NOIO);
-        if (!seg_name)
-                goto done;
-
-        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-
-        ret = snap_by_name(&rbd_dev->header, snap_name, &snapid, NULL);
-        if (ret < 0)
-                goto done_unlock;
-
-        dout("snapid=%lld\n", snapid);
-
-        cur_ofs = 0;
-        while (cur_ofs < rbd_dev->header.image_size) {
-                cur_ofs += rbd_get_segment(&rbd_dev->header,
-                                           rbd_dev->obj,
-                                           cur_ofs, (u64)-1,
-                                           seg_name, NULL);
-                dout("seg_name=%s\n", seg_name);
-
-                ret = rbd_req_sync_rollback_obj(rbd_dev, snapid, seg_name);
-                if (ret < 0)
-                        pr_warning("could not roll back obj %s err=%d\n",
-                                   seg_name, ret);
-        }
-
-        ret = __rbd_update_snaps(rbd_dev);
-        if (ret < 0)
-                goto done_unlock;
-
-        ret = count;
-
-done_unlock:
-        mutex_unlock(&ctl_mutex);
-done:
-        kfree(seg_name);
-        kfree(snap_name);
-
-        return ret;
-}
-
 static struct bus_attribute rbd_bus_attrs[] = {
         __ATTR(add, S_IWUSR, NULL, rbd_add),
         __ATTR(remove, S_IWUSR, NULL, rbd_remove),
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index ae3e167e17ad..89ddab127e33 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -16,6 +16,8 @@
  * handle GCR disks
  */
 
+#undef DEBUG
+
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -36,13 +38,11 @@
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
 
-static DEFINE_MUTEX(swim3_mutex);
-static struct request_queue *swim3_queue;
-static struct gendisk *disks[2];
-static struct request *fd_req;
-
 #define MAX_FLOPPIES    2
 
+static DEFINE_MUTEX(swim3_mutex);
+static struct gendisk *disks[MAX_FLOPPIES];
+
 enum swim_state {
         idle,
         locating,
@@ -177,7 +177,6 @@ struct swim3 {
 
 struct floppy_state {
         enum swim_state state;
-        spinlock_t lock;
         struct swim3 __iomem *swim3;    /* hardware registers */
         struct dbdma_regs __iomem *dma; /* DMA controller registers */
         int     swim3_intr;     /* interrupt number for SWIM3 */
@@ -204,8 +203,20 @@ struct floppy_state {
         int     wanted;
         struct macio_dev *mdev;
         char    dbdma_cmd_space[5 * sizeof(struct dbdma_cmd)];
+        int     index;
+        struct request *cur_req;
 };
 
+#define swim3_err(fmt, arg...)  dev_err(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#define swim3_warn(fmt, arg...) dev_warn(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#define swim3_info(fmt, arg...) dev_info(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+
+#ifdef DEBUG
+#define swim3_dbg(fmt, arg...)  dev_dbg(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#else
+#define swim3_dbg(fmt, arg...)  do { } while(0)
+#endif
+
 static struct floppy_state floppy_states[MAX_FLOPPIES];
 static int floppy_count = 0;
 static DEFINE_SPINLOCK(swim3_lock);
@@ -224,17 +235,8 @@ static unsigned short write_postamble[] = {
         0, 0, 0, 0, 0, 0
 };
 
-static void swim3_select(struct floppy_state *fs, int sel);
-static void swim3_action(struct floppy_state *fs, int action);
-static int swim3_readbit(struct floppy_state *fs, int bit);
-static void do_fd_request(struct request_queue * q);
-static void start_request(struct floppy_state *fs);
-static void set_timeout(struct floppy_state *fs, int nticks,
-                        void (*proc)(unsigned long));
-static void scan_track(struct floppy_state *fs);
 static void seek_track(struct floppy_state *fs, int n);
 static void init_dma(struct dbdma_cmd *cp, int cmd, void *buf, int count);
-static void setup_transfer(struct floppy_state *fs);
 static void act(struct floppy_state *fs);
 static void scan_timeout(unsigned long data);
 static void seek_timeout(unsigned long data);
@@ -254,18 +256,21 @@ static unsigned int floppy_check_events(struct gendisk *disk,
                                         unsigned int clearing);
 static int floppy_revalidate(struct gendisk *disk);
 
-static bool swim3_end_request(int err, unsigned int nr_bytes)
+static bool swim3_end_request(struct floppy_state *fs, int err, unsigned int nr_bytes)
 {
-        if (__blk_end_request(fd_req, err, nr_bytes))
-                return true;
+        struct request *req = fs->cur_req;
+        int rc;
 
-        fd_req = NULL;
-        return false;
-}
+        swim3_dbg("  end request, err=%d nr_bytes=%d, cur_req=%p\n",
+                  err, nr_bytes, req);
 
-static bool swim3_end_request_cur(int err)
-{
-        return swim3_end_request(err, blk_rq_cur_bytes(fd_req));
+        if (err)
+                nr_bytes = blk_rq_cur_bytes(req);
+        rc = __blk_end_request(req, err, nr_bytes);
+        if (rc)
+                return true;
+        fs->cur_req = NULL;
+        return false;
 }
 
 static void swim3_select(struct floppy_state *fs, int sel)
@@ -303,50 +308,53 @@ static int swim3_readbit(struct floppy_state *fs, int bit)
         return (stat & DATA) == 0;
 }
 
-static void do_fd_request(struct request_queue * q)
-{
-        int i;
-
-        for(i=0; i<floppy_count; i++) {
-                struct floppy_state *fs = &floppy_states[i];
-                if (fs->mdev->media_bay &&
-                    check_media_bay(fs->mdev->media_bay) != MB_FD)
-                        continue;
-                start_request(fs);
-        }
-}
-
 static void start_request(struct floppy_state *fs)
 {
         struct request *req;
         unsigned long x;
 
+        swim3_dbg("start request, initial state=%d\n", fs->state);
+
         if (fs->state == idle && fs->wanted) {
                 fs->state = available;
                 wake_up(&fs->wait);
                 return;
         }
         while (fs->state == idle) {
-                if (!fd_req) {
-                        fd_req = blk_fetch_request(swim3_queue);
-                        if (!fd_req)
+                swim3_dbg("start request, idle loop, cur_req=%p\n", fs->cur_req);
+                if (!fs->cur_req) {
+                        fs->cur_req = blk_fetch_request(disks[fs->index]->queue);
+                        swim3_dbg("  fetched request %p\n", fs->cur_req);
+                        if (!fs->cur_req)
                                 break;
                 }
-                req = fd_req;
-#if 0
-                printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n",
-                       req->rq_disk->disk_name, req->cmd,
-                       (long)blk_rq_pos(req), blk_rq_sectors(req), req->buffer);
-                printk("           errors=%d current_nr_sectors=%u\n",
-                       req->errors, blk_rq_cur_sectors(req));
+                req = fs->cur_req;
+
+                if (fs->mdev->media_bay &&
+                    check_media_bay(fs->mdev->media_bay) != MB_FD) {
+                        swim3_dbg("%s", "  media bay absent, dropping req\n");
+                        swim3_end_request(fs, -ENODEV, 0);
+                        continue;
+                }
+
+#if 0 /* This is really too verbose */
+                swim3_dbg("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n",
+                          req->rq_disk->disk_name, req->cmd,
+                          (long)blk_rq_pos(req), blk_rq_sectors(req),
+                          req->buffer);
+                swim3_dbg("           errors=%d current_nr_sectors=%u\n",
+                          req->errors, blk_rq_cur_sectors(req));
 #endif
 
                 if (blk_rq_pos(req) >= fs->total_secs) {
-                        swim3_end_request_cur(-EIO);
+                        swim3_dbg("  pos out of bounds (%ld, max is %ld)\n",
+                                  (long)blk_rq_pos(req), (long)fs->total_secs);
+                        swim3_end_request(fs, -EIO, 0);
                         continue;
                 }
                 if (fs->ejected) {
-                        swim3_end_request_cur(-EIO);
+                        swim3_dbg("%s", "  disk ejected\n");
+                        swim3_end_request(fs, -EIO, 0);
                         continue;
                 }
 
@@ -354,7 +362,8 @@ static void start_request(struct floppy_state *fs)
                         if (fs->write_prot < 0)
                                 fs->write_prot = swim3_readbit(fs, WRITE_PROT);
                         if (fs->write_prot) {
-                                swim3_end_request_cur(-EIO);
+                                swim3_dbg("%s", "  try to write, disk write protected\n");
+                                swim3_end_request(fs, -EIO, 0);
                                 continue;
                         }
                 }
@@ -369,7 +378,6 @@ static void start_request(struct floppy_state *fs)
                 x = ((long)blk_rq_pos(req)) % fs->secpercyl;
                 fs->head = x / fs->secpertrack;
                 fs->req_sector = x % fs->secpertrack + 1;
-                fd_req = req;
                 fs->state = do_transfer;
                 fs->retries = 0;
 
@@ -377,12 +385,14 @@ static void start_request(struct floppy_state *fs)
         }
 }
 
+static void do_fd_request(struct request_queue * q)
+{
+        start_request(q->queuedata);
+}
+
 static void set_timeout(struct floppy_state *fs, int nticks,
                         void (*proc)(unsigned long))
 {
-        unsigned long flags;
-
-        spin_lock_irqsave(&fs->lock, flags);
         if (fs->timeout_pending)
                 del_timer(&fs->timeout);
         fs->timeout.expires = jiffies + nticks;
@@ -390,7 +400,6 @@ static void set_timeout(struct floppy_state *fs, int nticks,
         fs->timeout.data = (unsigned long) fs;
         add_timer(&fs->timeout);
         fs->timeout_pending = 1;
-        spin_unlock_irqrestore(&fs->lock, flags);
 }
 
 static inline void scan_track(struct floppy_state *fs)
@@ -442,40 +451,45 @@ static inline void setup_transfer(struct floppy_state *fs)
         struct swim3 __iomem *sw = fs->swim3;
         struct dbdma_cmd *cp = fs->dma_cmd;
         struct dbdma_regs __iomem *dr = fs->dma;
+        struct request *req = fs->cur_req;
 
-        if (blk_rq_cur_sectors(fd_req) <= 0) {
-                printk(KERN_ERR "swim3: transfer 0 sectors?\n");
+        if (blk_rq_cur_sectors(req) <= 0) {
+                swim3_warn("%s", "Transfer 0 sectors ?\n");
                 return;
         }
-        if (rq_data_dir(fd_req) == WRITE)
+        if (rq_data_dir(req) == WRITE)
                 n = 1;
         else {
                 n = fs->secpertrack - fs->req_sector + 1;
-                if (n > blk_rq_cur_sectors(fd_req))
-                        n = blk_rq_cur_sectors(fd_req);
+                if (n > blk_rq_cur_sectors(req))
+                        n = blk_rq_cur_sectors(req);
         }
+
+        swim3_dbg("  setup xfer at sect %d (of %d) head %d for %d\n",
+                  fs->req_sector, fs->secpertrack, fs->head, n);
+
         fs->scount = n;
         swim3_select(fs, fs->head? READ_DATA_1: READ_DATA_0);
         out_8(&sw->sector, fs->req_sector);
         out_8(&sw->nsect, n);
         out_8(&sw->gap3, 0);
         out_le32(&dr->cmdptr, virt_to_bus(cp));
-        if (rq_data_dir(fd_req) == WRITE) {
+        if (rq_data_dir(req) == WRITE) {
                 /* Set up 3 dma commands: write preamble, data, postamble */
                 init_dma(cp, OUTPUT_MORE, write_preamble, sizeof(write_preamble));
                 ++cp;
-                init_dma(cp, OUTPUT_MORE, fd_req->buffer, 512);
+                init_dma(cp, OUTPUT_MORE, req->buffer, 512);
                 ++cp;
                 init_dma(cp, OUTPUT_LAST, write_postamble, sizeof(write_postamble));
         } else {
-                init_dma(cp, INPUT_LAST, fd_req->buffer, n * 512);
+                init_dma(cp, INPUT_LAST, req->buffer, n * 512);
         }
         ++cp;
         out_le16(&cp->command, DBDMA_STOP);
         out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
         in_8(&sw->error);
         out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
-        if (rq_data_dir(fd_req) == WRITE)
+        if (rq_data_dir(req) == WRITE)
                 out_8(&sw->control_bis, WRITE_SECTORS);
         in_8(&sw->intr);
         out_le32(&dr->control, (RUN << 16) | RUN);
@@ -488,12 +502,16 @@ static inline void setup_transfer(struct floppy_state *fs)
 static void act(struct floppy_state *fs)
 {
         for (;;) {
+                swim3_dbg("  act loop, state=%d, req_cyl=%d, cur_cyl=%d\n",
+                          fs->state, fs->req_cyl, fs->cur_cyl);
+
                 switch (fs->state) {
                 case idle:
                         return;         /* XXX shouldn't get here */
 
                 case locating:
                         if (swim3_readbit(fs, TRACK_ZERO)) {
+                                swim3_dbg("%s", "    locate track 0\n");
                                 fs->cur_cyl = 0;
                                 if (fs->req_cyl == 0)
                                         fs->state = do_transfer;
@@ -511,7 +529,7 @@ static void act(struct floppy_state *fs)
                                 break;
                         }
                         if (fs->req_cyl == fs->cur_cyl) {
-                                printk("whoops, seeking 0\n");
+                                swim3_warn("%s", "Whoops, seeking 0\n");
                                 fs->state = do_transfer;
                                 break;
                         }
@@ -527,7 +545,9 @@ static void act(struct floppy_state *fs)
                 case do_transfer:
                         if (fs->cur_cyl != fs->req_cyl) {
                                 if (fs->retries > 5) {
-                                        swim3_end_request_cur(-EIO);
+                                        swim3_err("Wrong cylinder in transfer, want: %d got %d\n",
+                                                  fs->req_cyl, fs->cur_cyl);
+                                        swim3_end_request(fs, -EIO, 0);
                                         fs->state = idle;
                                         return;
                                 }
@@ -542,7 +562,7 @@ static void act(struct floppy_state *fs)
                         return;
 
                 default:
-                        printk(KERN_ERR"swim3: unknown state %d\n", fs->state);
+                        swim3_err("Unknown state %d\n", fs->state);
                         return;
                 }
         }
@@ -552,59 +572,75 @@ static void scan_timeout(unsigned long data)
 {
         struct floppy_state *fs = (struct floppy_state *) data;
         struct swim3 __iomem *sw = fs->swim3;
+        unsigned long flags;
+
+        swim3_dbg("* scan timeout, state=%d\n", fs->state);
 
+        spin_lock_irqsave(&swim3_lock, flags);
         fs->timeout_pending = 0;
         out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
         out_8(&sw->select, RELAX);
         out_8(&sw->intr_enable, 0);
         fs->cur_cyl = -1;
         if (fs->retries > 5) {
-                swim3_end_request_cur(-EIO);
+                swim3_end_request(fs, -EIO, 0);
                 fs->state = idle;
                 start_request(fs);
         } else {
                 fs->state = jogging;
                 act(fs);
         }
+        spin_unlock_irqrestore(&swim3_lock, flags);
 }
 
 static void seek_timeout(unsigned long data)
 {
         struct floppy_state *fs = (struct floppy_state *) data;
         struct swim3 __iomem *sw = fs->swim3;
+        unsigned long flags;
+
+        swim3_dbg("* seek timeout, state=%d\n", fs->state);
 
+        spin_lock_irqsave(&swim3_lock, flags);
         fs->timeout_pending = 0;
         out_8(&sw->control_bic, DO_SEEK);
         out_8(&sw->select, RELAX);
         out_8(&sw->intr_enable, 0);
-        printk(KERN_ERR "swim3: seek timeout\n");
-        swim3_end_request_cur(-EIO);
+        swim3_err("%s", "Seek timeout\n");
+        swim3_end_request(fs, -EIO, 0);
         fs->state = idle;
         start_request(fs);
+        spin_unlock_irqrestore(&swim3_lock, flags);
 }
 
 static void settle_timeout(unsigned long data)
 {
         struct floppy_state *fs = (struct floppy_state *) data;
         struct swim3 __iomem *sw = fs->swim3;
+        unsigned long flags;
+
+        swim3_dbg("* settle timeout, state=%d\n", fs->state);
 
+        spin_lock_irqsave(&swim3_lock, flags);
         fs->timeout_pending = 0;
         if (swim3_readbit(fs, SEEK_COMPLETE)) {
                 out_8(&sw->select, RELAX);
                 fs->state = locating;
                 act(fs);
-                return;
+                goto unlock;
         }
         out_8(&sw->select, RELAX);
         if (fs->settle_time < 2*HZ) {
                 ++fs->settle_time;
                 set_timeout(fs, 1, settle_timeout);
-                return;
+                goto unlock;
         }
-        printk(KERN_ERR "swim3: seek settle timeout\n");
-        swim3_end_request_cur(-EIO);
+        swim3_err("%s", "Seek settle timeout\n");
+        swim3_end_request(fs, -EIO, 0);
         fs->state = idle;
         start_request(fs);
+ unlock:
+        spin_unlock_irqrestore(&swim3_lock, flags);
 }
 
 static void xfer_timeout(unsigned long data)
@@ -612,8 +648,12 @@ static void xfer_timeout(unsigned long data)
         struct floppy_state *fs = (struct floppy_state *) data;
         struct swim3 __iomem *sw = fs->swim3;
         struct dbdma_regs __iomem *dr = fs->dma;
+        unsigned long flags;
         int n;
 
+        swim3_dbg("* xfer timeout, state=%d\n", fs->state);
+
+        spin_lock_irqsave(&swim3_lock, flags);
         fs->timeout_pending = 0;
         out_le32(&dr->control, RUN << 16);
         /* We must wait a bit for dbdma to stop */
@@ -622,12 +662,13 @@ static void xfer_timeout(unsigned long data)
         out_8(&sw->intr_enable, 0);
         out_8(&sw->control_bic, WRITE_SECTORS | DO_ACTION);
         out_8(&sw->select, RELAX);
-        printk(KERN_ERR "swim3: timeout %sing sector %ld\n",
-               (rq_data_dir(fd_req)==WRITE? "writ": "read"),
-               (long)blk_rq_pos(fd_req));
-        swim3_end_request_cur(-EIO);
+        swim3_err("Timeout %sing sector %ld\n",
+               (rq_data_dir(fs->cur_req)==WRITE? "writ": "read"),
+               (long)blk_rq_pos(fs->cur_req));
+        swim3_end_request(fs, -EIO, 0);
         fs->state = idle;
         start_request(fs);
+        spin_unlock_irqrestore(&swim3_lock, flags);
 }
 
 static irqreturn_t swim3_interrupt(int irq, void *dev_id)
@@ -638,12 +679,17 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
         int stat, resid;
         struct dbdma_regs __iomem *dr;
         struct dbdma_cmd *cp;
+        unsigned long flags;
+        struct request *req = fs->cur_req;
+
+        swim3_dbg("* interrupt, state=%d\n", fs->state);
 
+        spin_lock_irqsave(&swim3_lock, flags);
         intr = in_8(&sw->intr);
         err = (intr & ERROR_INTR)? in_8(&sw->error): 0;
         if ((intr & ERROR_INTR) && fs->state != do_transfer)
-                printk(KERN_ERR "swim3_interrupt, state=%d, dir=%x, intr=%x, err=%x\n",
-                       fs->state, rq_data_dir(fd_req), intr, err);
+                swim3_err("Non-transfer error interrupt: state=%d, dir=%x, intr=%x, err=%x\n",
+                          fs->state, rq_data_dir(req), intr, err);
         switch (fs->state) {
         case locating:
                 if (intr & SEEN_SECTOR) {
@@ -653,10 +699,10 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
                         del_timer(&fs->timeout);
                         fs->timeout_pending = 0;
                         if (sw->ctrack == 0xff) {
-                                printk(KERN_ERR "swim3: seen sector but cyl=ff?\n");
+                                swim3_err("%s", "Seen sector but cyl=ff?\n");
                                 fs->cur_cyl = -1;
                                 if (fs->retries > 5) {
-                                        swim3_end_request_cur(-EIO);
+                                        swim3_end_request(fs, -EIO, 0);
                                         fs->state = idle;
                                         start_request(fs);
                                 } else {
@@ -668,8 +714,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
                         fs->cur_cyl = sw->ctrack;
                         fs->cur_sector = sw->csect;
                         if (fs->expect_cyl != -1 && fs->expect_cyl != fs->cur_cyl)
-                                printk(KERN_ERR "swim3: expected cyl %d, got %d\n",
-                                       fs->expect_cyl, fs->cur_cyl);
+                                swim3_err("Expected cyl %d, got %d\n",
+                                          fs->expect_cyl, fs->cur_cyl);
                         fs->state = do_transfer;
                         act(fs);
                 }
@@ -704,7 +750,7 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
                 fs->timeout_pending = 0;
                 dr = fs->dma;
                 cp = fs->dma_cmd;
-                if (rq_data_dir(fd_req) == WRITE)
+                if (rq_data_dir(req) == WRITE)
                         ++cp;
                 /*
                  * Check that the main data transfer has finished.
@@ -729,31 +775,32 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
                 if (intr & ERROR_INTR) {
                         n = fs->scount - 1 - resid / 512;
                         if (n > 0) {
-                                blk_update_request(fd_req, 0, n << 9);
+                                blk_update_request(req, 0, n << 9);
                                 fs->req_sector += n;
                         }
                         if (fs->retries < 5) {
                                 ++fs->retries;
                                 act(fs);
                         } else {
-                                printk("swim3: error %sing block %ld (err=%x)\n",
-                                       rq_data_dir(fd_req) == WRITE? "writ": "read",
-                                       (long)blk_rq_pos(fd_req), err);
-                                swim3_end_request_cur(-EIO);
+                                swim3_err("Error %sing block %ld (err=%x)\n",
+                                       rq_data_dir(req) == WRITE? "writ": "read",
+                                       (long)blk_rq_pos(req), err);
+                                swim3_end_request(fs, -EIO, 0);
                                 fs->state = idle;
                         }
                 } else {
                         if ((stat & ACTIVE) == 0 || resid != 0) {
                                 /* musta been an error */
-                                printk(KERN_ERR "swim3: fd dma: stat=%x resid=%d\n", stat, resid);
-                                printk(KERN_ERR "  state=%d, dir=%x, intr=%x, err=%x\n",
-                                       fs->state, rq_data_dir(fd_req), intr, err);
-                                swim3_end_request_cur(-EIO);
+                                swim3_err("fd dma error: stat=%x resid=%d\n", stat, resid);
+                                swim3_err("  state=%d, dir=%x, intr=%x, err=%x\n",
+                                          fs->state, rq_data_dir(req), intr, err);
+                                swim3_end_request(fs, -EIO, 0);
                                 fs->state = idle;
                                 start_request(fs);
                                 break;
                         }
-                        if (swim3_end_request(0, fs->scount << 9)) {
+                        fs->retries = 0;
+                        if (swim3_end_request(fs, 0, fs->scount << 9)) {
                                 fs->req_sector += fs->scount;
                                 if (fs->req_sector > fs->secpertrack) {
                                         fs->req_sector -= fs->secpertrack;
@@ -770,8 +817,9 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
                         start_request(fs);
                 break;
         default:
-                printk(KERN_ERR "swim3: don't know what to do in state %d\n", fs->state);
+                swim3_err("Don't know what to do in state %d\n", fs->state);
         }
+        spin_unlock_irqrestore(&swim3_lock, flags);
         return IRQ_HANDLED;
 }
 
@@ -781,26 +829,31 @@ static void fd_dma_interrupt(int irq, void *dev_id)
 }
 */
 
+/* Called under the mutex to grab exclusive access to a drive */
 static int grab_drive(struct floppy_state *fs, enum swim_state state,
                       int interruptible)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&fs->lock, flags);
-        if (fs->state != idle) {
+        swim3_dbg("%s", "-> grab drive\n");
+
+        spin_lock_irqsave(&swim3_lock, flags);
+        if (fs->state != idle && fs->state != available) {
                 ++fs->wanted;
                 while (fs->state != available) {
+                        spin_unlock_irqrestore(&swim3_lock, flags);
                         if (interruptible && signal_pending(current)) {
                                 --fs->wanted;
-                                spin_unlock_irqrestore(&fs->lock, flags);
                                 return -EINTR;
                         }
                         interruptible_sleep_on(&fs->wait);
+                        spin_lock_irqsave(&swim3_lock, flags);
                 }
                 --fs->wanted;
         }
         fs->state = state;
-        spin_unlock_irqrestore(&fs->lock, flags);
+        spin_unlock_irqrestore(&swim3_lock, flags);
+
         return 0;
 }
 
@@ -808,10 +861,12 @@ static void release_drive(struct floppy_state *fs)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&fs->lock, flags);
+        swim3_dbg("%s", "-> release drive\n");
+
+        spin_lock_irqsave(&swim3_lock, flags);
         fs->state = idle;
         start_request(fs);
-        spin_unlock_irqrestore(&fs->lock, flags);
+        spin_unlock_irqrestore(&swim3_lock, flags);
 }
 
 static int fd_eject(struct floppy_state *fs)
@@ -966,6 +1021,7 @@ static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
         struct floppy_state *fs = disk->private_data;
         struct swim3 __iomem *sw = fs->swim3;
+
         mutex_lock(&swim3_mutex);
         if (fs->ref_count > 0 && --fs->ref_count == 0) {
                 swim3_action(fs, MOTOR_OFF);
@@ -1031,30 +1087,48 @@ static const struct block_device_operations floppy_fops = {
         .revalidate_disk= floppy_revalidate,
 };
 
+static void swim3_mb_event(struct macio_dev* mdev, int mb_state)
+{
+        struct floppy_state *fs = macio_get_drvdata(mdev);
+        struct swim3 __iomem *sw = fs->swim3;
+
+        if (!fs)
+                return;
+        if (mb_state != MB_FD)
+                return;
+
+        /* Clear state */
+        out_8(&sw->intr_enable, 0);
+        in_8(&sw->intr);
+        in_8(&sw->error);
+}
+
 static int swim3_add_device(struct macio_dev *mdev, int index)
 {
         struct device_node *swim = mdev->ofdev.dev.of_node;
         struct floppy_state *fs = &floppy_states[index];
         int rc = -EBUSY;
 
+        /* Do this first for message macros */
+        memset(fs, 0, sizeof(*fs));
+        fs->mdev = mdev;
+        fs->index = index;
+
         /* Check & Request resources */
         if (macio_resource_count(mdev) < 2) {
-                printk(KERN_WARNING "ifd%d: no address for %s\n",
-                       index, swim->full_name);
+                swim3_err("%s", "No address in device-tree\n");
                 return -ENXIO;
         }
-        if (macio_irq_count(mdev) < 2) {
-                printk(KERN_WARNING "fd%d: no intrs for device %s\n",
-                        index, swim->full_name);
+        if (macio_irq_count(mdev) < 1) {
+                swim3_err("%s", "No interrupt in device-tree\n");
+                return -ENXIO;
         }
         if (macio_request_resource(mdev, 0, "swim3 (mmio)")) {
-                printk(KERN_ERR "fd%d: can't request mmio resource for %s\n",
-                       index, swim->full_name);
+                swim3_err("%s", "Can't request mmio resource\n");
                 return -EBUSY;
         }
         if (macio_request_resource(mdev, 1, "swim3 (dma)")) {
-                printk(KERN_ERR "fd%d: can't request dma resource for %s\n",
-                       index, swim->full_name);
+                swim3_err("%s", "Can't request dma resource\n");
                 macio_release_resource(mdev, 0);
                 return -EBUSY;
         }
@@ -1063,22 +1137,18 @@ static int swim3_add_device(struct macio_dev *mdev, int index)
         if (mdev->media_bay == NULL)
                 pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 1);
         
-        memset(fs, 0, sizeof(*fs));
-        spin_lock_init(&fs->lock);
         fs->state = idle;
         fs->swim3 = (struct swim3 __iomem *)
                 ioremap(macio_resource_start(mdev, 0), 0x200);
         if (fs->swim3 == NULL) {
-                printk("fd%d: couldn't map registers for %s\n",
-                       index, swim->full_name);
+                swim3_err("%s", "Couldn't map mmio registers\n");
                 rc = -ENOMEM;
                 goto out_release;
         }
         fs->dma = (struct dbdma_regs __iomem *)
                 ioremap(macio_resource_start(mdev, 1), 0x200);
         if (fs->dma == NULL) {
-                printk("fd%d: couldn't map DMA for %s\n",
-                       index, swim->full_name);
+                swim3_err("%s", "Couldn't map dma registers\n");
                 iounmap(fs->swim3);
                 rc = -ENOMEM;
                 goto out_release;
@@ -1090,31 +1160,25 @@ static int swim3_add_device(struct macio_dev *mdev, int index)
         fs->secpercyl = 36;
         fs->secpertrack = 18;
         fs->total_secs = 2880;
-        fs->mdev = mdev;
         init_waitqueue_head(&fs->wait);
 
         fs->dma_cmd = (struct dbdma_cmd *) DBDMA_ALIGN(fs->dbdma_cmd_space);
         memset(fs->dma_cmd, 0, 2 * sizeof(struct dbdma_cmd));
         st_le16(&fs->dma_cmd[1].command, DBDMA_STOP);
 
+        if (mdev->media_bay == NULL || check_media_bay(mdev->media_bay) == MB_FD)
+                swim3_mb_event(mdev, MB_FD);
+
         if (request_irq(fs->swim3_intr, swim3_interrupt, 0, "SWIM3", fs)) {
-                printk(KERN_ERR "fd%d: couldn't request irq %d for %s\n",
-                       index, fs->swim3_intr, swim->full_name);
+                swim3_err("%s", "Couldn't request interrupt\n");
                 pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 0);
                 goto out_unmap;
                 return -EBUSY;
         }
-/*
-        if (request_irq(fs->dma_intr, fd_dma_interrupt, 0, "SWIM3-dma", fs)) {
-                printk(KERN_ERR "Couldn't get irq %d for SWIM3 DMA",
-                       fs->dma_intr);
-                return -EBUSY;
-        }
-*/
 
         init_timer(&fs->timeout);
 
-        printk(KERN_INFO "fd%d: SWIM3 floppy controller %s\n", floppy_count,
+        swim3_info("SWIM3 floppy controller %s\n",
                 mdev->media_bay ? "in media bay" : "");
 
         return 0;
@@ -1132,41 +1196,42 @@ static int swim3_add_device(struct macio_dev *mdev, int index)
 
 static int __devinit swim3_attach(struct macio_dev *mdev, const struct of_device_id *match)
 {
-        int i, rc;
         struct gendisk *disk;
+        int index, rc;
+
+        index = floppy_count++;
+        if (index >= MAX_FLOPPIES)
+                return -ENXIO;
 
         /* Add the drive */
-        rc = swim3_add_device(mdev, floppy_count);
+        rc = swim3_add_device(mdev, index);
         if (rc)
                 return rc;
+        /* Now register that disk. Same comment about failure handling */
+        disk = disks[index] = alloc_disk(1);
+        if (disk == NULL)
+                return -ENOMEM;
+        disk->queue = blk_init_queue(do_fd_request, &swim3_lock);
+        if (disk->queue == NULL) {
+                put_disk(disk);
+                return -ENOMEM;
+        }
+        disk->queue->queuedata = &floppy_states[index];
 
-        /* Now create the queue if not there yet */
-        if (swim3_queue == NULL) {
+        if (index == 0) {
                 /* If we failed, there isn't much we can do as the driver is still
                  * too dumb to remove the device, just bail out
                  */
                 if (register_blkdev(FLOPPY_MAJOR, "fd"))
                         return 0;
-                swim3_queue = blk_init_queue(do_fd_request, &swim3_lock);
-                if (swim3_queue == NULL) {
-                        unregister_blkdev(FLOPPY_MAJOR, "fd");
-                        return 0;
-                }
         }
 
-        /* Now register that disk. Same comment about failure handling */
-        i = floppy_count++;
-        disk = disks[i] = alloc_disk(1);
-        if (disk == NULL)
-                return 0;
-
         disk->major = FLOPPY_MAJOR;
-        disk->first_minor = i;
+        disk->first_minor = index;
         disk->fops = &floppy_fops;
-        disk->private_data = &floppy_states[i];
-        disk->queue = swim3_queue;
+        disk->private_data = &floppy_states[index];
         disk->flags |= GENHD_FL_REMOVABLE;
-        sprintf(disk->disk_name, "fd%d", i);
+        sprintf(disk->disk_name, "fd%d", index);
         set_capacity(disk, 2880);
         add_disk(disk);
 
@@ -1194,6 +1259,9 @@ static struct macio_driver swim3_driver =
                 .of_match_table = swim3_match,
         },
         .probe          = swim3_attach,
+#ifdef CONFIG_PMAC_MEDIABAY
+        .mediabay_event = swim3_mb_event,
+#endif
 #if 0
         .suspend        = swim3_suspend,
         .resume         = swim3_resume,
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index c2917ffad2c2..34767a6d7f42 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -139,6 +139,8 @@
 #define IPMI_WDOG_SET_TIMER             0x24
 #define IPMI_WDOG_GET_TIMER             0x25
 
+#define IPMI_WDOG_TIMER_NOT_INIT_RESP   0x80
+
 /* These are here until the real ones get into the watchdog.h interface. */
 #ifndef WDIOC_GETTIMEOUT
 #define WDIOC_GETTIMEOUT        _IOW(WATCHDOG_IOCTL_BASE, 20, int)
@@ -596,6 +598,7 @@ static int ipmi_heartbeat(void)
         struct kernel_ipmi_msg            msg;
         int                               rv;
         struct ipmi_system_interface_addr addr;
+        int                               timeout_retries = 0;
 
         if (ipmi_ignore_heartbeat)
                 return 0;
@@ -616,6 +619,7 @@ static int ipmi_heartbeat(void)
 
         mutex_lock(&heartbeat_lock);
 
+restart:
         atomic_set(&heartbeat_tofree, 2);
 
         /*
@@ -653,7 +657,33 @@ static int ipmi_heartbeat(void)
         /* Wait for the heartbeat to be sent. */
         wait_for_completion(&heartbeat_wait);
 
-        if (heartbeat_recv_msg.msg.data[0] != 0) {
+        if (heartbeat_recv_msg.msg.data[0] == IPMI_WDOG_TIMER_NOT_INIT_RESP)  {
+                timeout_retries++;
+                if (timeout_retries > 3) {
+                        printk(KERN_ERR PFX ": Unable to restore the IPMI"
+                               " watchdog's settings, giving up.\n");
+                        rv = -EIO;
+                        goto out_unlock;
+                }
+
+                /*
+                 * The timer was not initialized, that means the BMC was
+                 * probably reset and lost the watchdog information.  Attempt
+                 * to restore the timer's info.  Note that we still hold
+                 * the heartbeat lock, to keep a heartbeat from happening
+                 * in this process, so must say no heartbeat to avoid a
+                 * deadlock on this mutex.
+                 */
+                rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
+                if (rv) {
+                        printk(KERN_ERR PFX ": Unable to send the command to"
+                               " set the watchdog's settings, giving up.\n");
+                        goto out_unlock;
+                }
+
+                /* We might need a new heartbeat, so do it now */
+                goto restart;
+        } else if (heartbeat_recv_msg.msg.data[0] != 0) {
                 /*
                  * Got an error in the heartbeat response.  It was already
                  * reported in ipmi_wdog_msg_handler, but we should return
@@ -662,6 +692,7 @@ static int ipmi_heartbeat(void)
                 rv = -EINVAL;
         }
 
+out_unlock:
         mutex_unlock(&heartbeat_lock);
 
         return rv;
@@ -922,11 +953,15 @@ static struct miscdevice ipmi_wdog_miscdev = {
 static void ipmi_wdog_msg_handler(struct ipmi_recv_msg *msg,
                                   void                 *handler_data)
 {
-        if (msg->msg.data[0] != 0) {
+        if (msg->msg.cmd == IPMI_WDOG_RESET_TIMER &&
+                        msg->msg.data[0] == IPMI_WDOG_TIMER_NOT_INIT_RESP)
+                printk(KERN_INFO PFX "response: The IPMI controller appears"
+                       " to have been reset, will attempt to reinitialize"
+                       " the watchdog timer\n");
+        else if (msg->msg.data[0] != 0)
                 printk(KERN_ERR PFX "response: Error %x on cmd %x\n",
                        msg->msg.data[0],
                        msg->msg.cmd);
-        }
 
         ipmi_free_recv_msg(msg);
 }
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index c811cb107904..2cce44a1d7d0 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -746,6 +746,37 @@ static void __exit ibft_exit(void)
         ibft_cleanup();
 }
 
+#ifdef CONFIG_ACPI
+static const struct {
+        char *sign;
+} ibft_signs[] = {
+        /*
+         * One spec says "IBFT", the other says "iBFT". We have to check
+         * for both.
+         */
+        { ACPI_SIG_IBFT },
+        { "iBFT" },
+};
+
+static void __init acpi_find_ibft_region(void)
+{
+        int i;
+        struct acpi_table_header *table = NULL;
+
+        if (acpi_disabled)
+                return;
+
+        for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) {
+                acpi_get_table(ibft_signs[i].sign, 0, &table);
+                ibft_addr = (struct acpi_table_ibft *)table;
+        }
+}
+#else
+static void __init acpi_find_ibft_region(void)
+{
+}
+#endif
+
 /*
  * ibft_init() - creates sysfs tree entries for the iBFT data.
  */
@@ -753,9 +784,16 @@ static int __init ibft_init(void)
 {
         int rc = 0;
 
+        /*
+           As on UEFI systems the setup_arch()/find_ibft_region()
+           is called before ACPI tables are parsed and it only does
+           legacy finding.
+        */
+        if (!ibft_addr)
+                acpi_find_ibft_region();
+
         if (ibft_addr) {
-                printk(KERN_INFO "iBFT detected at 0x%llx.\n",
-                       (u64)isa_virt_to_bus(ibft_addr));
+                pr_info("iBFT detected.\n");
 
                 rc = ibft_check_device();
                 if (rc)
diff --git a/drivers/firmware/iscsi_ibft_find.c b/drivers/firmware/iscsi_ibft_find.c
index bfe723266fd8..4da4eb9ae926 100644
--- a/drivers/firmware/iscsi_ibft_find.c
+++ b/drivers/firmware/iscsi_ibft_find.c
@@ -45,13 +45,6 @@ EXPORT_SYMBOL_GPL(ibft_addr);
 static const struct {
         char *sign;
 } ibft_signs[] = {
-#ifdef CONFIG_ACPI
-        /*
-         * One spec says "IBFT", the other says "iBFT". We have to check
-         * for both.
-         */
-        { ACPI_SIG_IBFT },
-#endif
         { "iBFT" },
         { "BIFT" },     /* Broadcom iSCSI Offload */
 };
@@ -62,14 +55,6 @@ static const struct {
 #define VGA_MEM 0xA0000 /* VGA buffer */
 #define VGA_SIZE 0x20000 /* 128kB */
 
-#ifdef CONFIG_ACPI
-static int __init acpi_find_ibft(struct acpi_table_header *header)
-{
-        ibft_addr = (struct acpi_table_ibft *)header;
-        return 0;
-}
-#endif /* CONFIG_ACPI */
-
 static int __init find_ibft_in_mem(void)
 {
         unsigned long pos;
@@ -94,6 +79,7 @@ static int __init find_ibft_in_mem(void)
                                  * the table cannot be valid. */
                                 if (pos + len <= (IBFT_END-1)) {
                                         ibft_addr = (struct acpi_table_ibft *)virt;
+                                        pr_info("iBFT found at 0x%lx.\n", pos);
                                         goto done;
                                 }
                         }
@@ -108,20 +94,12 @@ done:
  */
 unsigned long __init find_ibft_region(unsigned long *sizep)
 {
-#ifdef CONFIG_ACPI
-        int i;
-#endif
         ibft_addr = NULL;
 
-#ifdef CONFIG_ACPI
-        for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++)
-                acpi_table_parse(ibft_signs[i].sign, acpi_find_ibft);
-#endif /* CONFIG_ACPI */
-
         /* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will
          * only use ACPI for this */
 
-        if (!ibft_addr && !efi_enabled)
+        if (!efi_enabled)
                 find_ibft_in_mem();
 
         if (ibft_addr) {
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
index 038f5eb8b13d..f8ce29ef9f88 100644
--- a/drivers/gpio/gpio-da9052.c
+++ b/drivers/gpio/gpio-da9052.c
@@ -22,7 +22,6 @@
 #include <linux/mfd/da9052/da9052.h>
 #include <linux/mfd/da9052/reg.h>
 #include <linux/mfd/da9052/pdata.h>
-#include <linux/mfd/da9052/gpio.h>
 
 #define DA9052_INPUT                            1
 #define DA9052_OUTPUT_OPENDRAIN         2
@@ -43,6 +42,9 @@
 #define DA9052_GPIO_MASK_UPPER_NIBBLE           0xF0
 #define DA9052_GPIO_MASK_LOWER_NIBBLE           0x0F
 #define DA9052_GPIO_NIBBLE_SHIFT                4
+#define DA9052_IRQ_GPI0                 16
+#define DA9052_GPIO_ODD_SHIFT                   7
+#define DA9052_GPIO_EVEN_SHIFT                  3
 
 struct da9052_gpio {
         struct da9052 *da9052;
@@ -104,33 +106,26 @@ static int da9052_gpio_get(struct gpio_chip *gc, unsigned offset)
 static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
 {
         struct da9052_gpio *gpio = to_da9052_gpio(gc);
-        unsigned char register_value = 0;
         int ret;
 
         if (da9052_gpio_port_odd(offset)) {
-                if (value) {
-                        register_value = DA9052_GPIO_ODD_PORT_MODE;
                         ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
                                                 DA9052_GPIO_0_1_REG,
                                                 DA9052_GPIO_ODD_PORT_MODE,
-                                                register_value);
+                                                value << DA9052_GPIO_ODD_SHIFT);
                         if (ret != 0)
                                 dev_err(gpio->da9052->dev,
                                         "Failed to updated gpio odd reg,%d",
                                         ret);
-                }
         } else {
-                if (value) {
-                        register_value = DA9052_GPIO_EVEN_PORT_MODE;
                         ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
                                                 DA9052_GPIO_0_1_REG,
                                                 DA9052_GPIO_EVEN_PORT_MODE,
-                                                register_value);
+                                                value << DA9052_GPIO_EVEN_SHIFT);
                         if (ret != 0)
                                 dev_err(gpio->da9052->dev,
                                         "Failed to updated gpio even reg,%d",
                                         ret);
-                }
         }
 }
 
@@ -201,9 +196,9 @@ static struct gpio_chip reference_gp __devinitdata = {
         .direction_input = da9052_gpio_direction_input,
         .direction_output = da9052_gpio_direction_output,
         .to_irq = da9052_gpio_to_irq,
-        .can_sleep = 1;
-        .ngpio = 16;
-        .base = -1;
+        .can_sleep = 1,
+        .ngpio = 16,
+        .base = -1,
 };
 
 static int __devinit da9052_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index ea8e73869250..461958fc2264 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -332,6 +332,34 @@ static void ioh_irq_mask(struct irq_data *d)
                   &chip->reg->regs[chip->ch].imask);
 }
 
+static void ioh_irq_disable(struct irq_data *d)
+{
+        struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+        struct ioh_gpio *chip = gc->private;
+        unsigned long flags;
+        u32 ien;
+
+        spin_lock_irqsave(&chip->spinlock, flags);
+        ien = ioread32(&chip->reg->regs[chip->ch].ien);
+        ien &= ~(1 << (d->irq - chip->irq_base));
+        iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+        spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
+static void ioh_irq_enable(struct irq_data *d)
+{
+        struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+        struct ioh_gpio *chip = gc->private;
+        unsigned long flags;
+        u32 ien;
+
+        spin_lock_irqsave(&chip->spinlock, flags);
+        ien = ioread32(&chip->reg->regs[chip->ch].ien);
+        ien |= 1 << (d->irq - chip->irq_base);
+        iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+        spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
 static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
 {
         struct ioh_gpio *chip = dev_id;
@@ -339,7 +367,7 @@ static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
         int i, j;
         int ret = IRQ_NONE;
 
-        for (i = 0; i < 8; i++) {
+        for (i = 0; i < 8; i++, chip++) {
                 reg_val = ioread32(&chip->reg->regs[i].istatus);
                 for (j = 0; j < num_ports[i]; j++) {
                         if (reg_val & BIT(j)) {
@@ -370,6 +398,8 @@ static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
         ct->chip.irq_mask = ioh_irq_mask;
         ct->chip.irq_unmask = ioh_irq_unmask;
         ct->chip.irq_set_type = ioh_irq_type;
+        ct->chip.irq_disable = ioh_irq_disable;
+        ct->chip.irq_enable = ioh_irq_enable;
 
         irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
                                IRQ_NOREQUEST | IRQ_NOPROBE, 0);
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index ec3fcf0a7e12..5cd04b65c556 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -132,6 +132,15 @@ static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val
         return 0;
 }
 
+static int mpc5121_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+        /* GPIO 28..31 are input only on MPC5121 */
+        if (gpio >= 28)
+                return -EINVAL;
+
+        return mpc8xxx_gpio_dir_out(gc, gpio, val);
+}
+
 static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 {
         struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
@@ -340,11 +349,10 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
         mm_gc->save_regs = mpc8xxx_gpio_save_regs;
         gc->ngpio = MPC8XXX_GPIO_PINS;
         gc->direction_input = mpc8xxx_gpio_dir_in;
-        gc->direction_output = mpc8xxx_gpio_dir_out;
-        if (of_device_is_compatible(np, "fsl,mpc8572-gpio"))
-                gc->get = mpc8572_gpio_get;
-        else
-                gc->get = mpc8xxx_gpio_get;
+        gc->direction_output = of_device_is_compatible(np, "fsl,mpc5121-gpio") ?
+                mpc5121_gpio_dir_out : mpc8xxx_gpio_dir_out;
+        gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ?
+                mpc8572_gpio_get : mpc8xxx_gpio_get;
         gc->set = mpc8xxx_gpio_set;
         gc->to_irq = mpc8xxx_gpio_to_irq;
 
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 093c90bd3c1d..4102f63230fd 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -238,10 +238,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
         int ret, irq, i;
         static DECLARE_BITMAP(init_irq, NR_IRQS);
 
-        pdata = dev->dev.platform_data;
-        if (pdata == NULL)
-                return -ENODEV;
-
         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
         if (chip == NULL)
                 return -ENOMEM;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index d09a6e02dc95..004b048c5192 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -62,6 +62,7 @@ static int i915_capabilities(struct seq_file *m, void *data)
         const struct intel_device_info *info = INTEL_INFO(dev);
 
         seq_printf(m, "gen: %d\n", info->gen);
+        seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
         B(is_mobile);
         B(is_i85x);
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index a9533c54c93c..a9ae374861e7 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1454,6 +1454,14 @@ unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
 
         diff1 = now - dev_priv->last_time1;
 
+        /* Prevent division-by-zero if we are asking too fast.
+         * Also, we don't get interesting results if we are polling
+         * faster than once in 10ms, so just return the saved value
+         * in such cases.
+         */
+        if (diff1 <= 10)
+                return dev_priv->chipset_power;
+
         count1 = I915_READ(DMIEC);
         count2 = I915_READ(DDREC);
         count3 = I915_READ(CSIEC);
@@ -1484,6 +1492,8 @@ unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
         dev_priv->last_count1 = total_count;
         dev_priv->last_time1 = now;
 
+        dev_priv->chipset_power = ret;
+
         return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 15bfa9145d2b..a1103fc6597d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -58,15 +58,15 @@ module_param_named(powersave, i915_powersave, int, 0600);
 MODULE_PARM_DESC(powersave,
                 "Enable powersavings, fbc, downclocking, etc. (default: true)");
 
-unsigned int i915_semaphores __read_mostly = 0;
+int i915_semaphores __read_mostly = -1;
 module_param_named(semaphores, i915_semaphores, int, 0600);
 MODULE_PARM_DESC(semaphores,
-                "Use semaphores for inter-ring sync (default: false)");
+                "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))");
 
-unsigned int i915_enable_rc6 __read_mostly = 0;
+int i915_enable_rc6 __read_mostly = -1;
 module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
 MODULE_PARM_DESC(i915_enable_rc6,
-                "Enable power-saving render C-state 6 (default: true)");
+                "Enable power-saving render C-state 6 (default: -1 (use per-chip default)");
 
 int i915_enable_fbc __read_mostly = -1;
 module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600);
@@ -328,7 +328,7 @@ void intel_detect_pch(struct drm_device *dev)
         }
 }
 
-static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
+void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
 {
         int count;
 
@@ -344,6 +344,22 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
                 udelay(10);
 }
 
+void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv)
+{
+        int count;
+
+        count = 0;
+        while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1))
+                udelay(10);
+
+        I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 1);
+        POSTING_READ(FORCEWAKE_MT);
+
+        count = 0;
+        while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1) == 0)
+                udelay(10);
+}
+
 /*
  * Generally this is called implicitly by the register read function. However,
  * if some sequence requires the GT to not power down then this function should
@@ -356,15 +372,21 @@ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
 
         /* Forcewake is atomic in case we get in here without the lock */
         if (atomic_add_return(1, &dev_priv->forcewake_count) == 1)
-                __gen6_gt_force_wake_get(dev_priv);
+                dev_priv->display.force_wake_get(dev_priv);
 }
 
-static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
+void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
 {
         I915_WRITE_NOTRACE(FORCEWAKE, 0);
         POSTING_READ(FORCEWAKE);
 }
 
+void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
+{
+        I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 0);
+        POSTING_READ(FORCEWAKE_MT);
+}
+
 /*
  * see gen6_gt_force_wake_get()
  */
@@ -373,7 +395,7 @@ void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
         WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
 
         if (atomic_dec_and_test(&dev_priv->forcewake_count))
-                __gen6_gt_force_wake_put(dev_priv);
+                dev_priv->display.force_wake_put(dev_priv);
 }
 
 void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
@@ -903,8 +925,9 @@ MODULE_LICENSE("GPL and additional rights");
 /* We give fast paths for the really cool registers */
 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
         (((dev_priv)->info->gen >= 6) && \
-        ((reg) < 0x40000) && \
-        ((reg) != FORCEWAKE))
+         ((reg) < 0x40000) &&            \
+         ((reg) != FORCEWAKE) &&         \
+         ((reg) != ECOBUS))
 
 #define __i915_read(x, y) \
 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4a9c1b979804..554bef7a3b9c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -107,6 +107,7 @@ struct opregion_header;
 struct opregion_acpi;
 struct opregion_swsci;
 struct opregion_asle;
+struct drm_i915_private;
 
 struct intel_opregion {
         struct opregion_header *header;
@@ -221,6 +222,8 @@ struct drm_i915_display_funcs {
                           struct drm_i915_gem_object *obj);
         int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
                             int x, int y);
+        void (*force_wake_get)(struct drm_i915_private *dev_priv);
+        void (*force_wake_put)(struct drm_i915_private *dev_priv);
         /* clock updates for mode set */
         /* cursor updates */
         /* render clock increase/decrease */
@@ -710,6 +713,7 @@ typedef struct drm_i915_private {
 
         u64 last_count1;
         unsigned long last_time1;
+        unsigned long chipset_power;
         u64 last_count2;
         struct timespec last_time2;
         unsigned long gfx_power;
@@ -998,11 +1002,11 @@ extern int i915_max_ioctl;
 extern unsigned int i915_fbpercrtc __always_unused;
 extern int i915_panel_ignore_lid __read_mostly;
 extern unsigned int i915_powersave __read_mostly;
-extern unsigned int i915_semaphores __read_mostly;
+extern int i915_semaphores __read_mostly;
 extern unsigned int i915_lvds_downclock __read_mostly;
 extern int i915_panel_use_ssc __read_mostly;
 extern int i915_vbt_sdvo_panel_type __read_mostly;
-extern unsigned int i915_enable_rc6 __read_mostly;
+extern int i915_enable_rc6 __read_mostly;
 extern int i915_enable_fbc __read_mostly;
 extern bool i915_enable_hangcheck __read_mostly;
 
@@ -1308,6 +1312,11 @@ extern void gen6_set_rps(struct drm_device *dev, u8 val);
 extern void intel_detect_pch(struct drm_device *dev);
 extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
 
+extern void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv);
+
 /* overlay */
 #ifdef CONFIG_DEBUG_FS
 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
@@ -1352,8 +1361,9 @@ void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
 /* We give fast paths for the really cool registers */
 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
         (((dev_priv)->info->gen >= 6) && \
-        ((reg) < 0x40000) && \
-        ((reg) != FORCEWAKE))
+         ((reg) < 0x40000) &&            \
+         ((reg) != FORCEWAKE) &&         \
+         ((reg) != ECOBUS))
 
 #define __i915_read(x, y) \
         u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 3693e83a97f3..c681dc149d2a 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -32,6 +32,7 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include "intel_drv.h"
+#include <linux/dma_remapping.h>
 
 struct change_domains {
         uint32_t invalidate_domains;
@@ -746,6 +747,22 @@ i915_gem_execbuffer_flush(struct drm_device *dev,
         return 0;
 }
 
+static bool
+intel_enable_semaphores(struct drm_device *dev)
+{
+        if (INTEL_INFO(dev)->gen < 6)
+                return 0;
+
+        if (i915_semaphores >= 0)
+                return i915_semaphores;
+
+        /* Enable semaphores on SNB when IO remapping is off */
+        if (INTEL_INFO(dev)->gen == 6)
+                return !intel_iommu_enabled;
+
+        return 1;
+}
+
 static int
 i915_gem_execbuffer_sync_rings(struct drm_i915_gem_object *obj,
                                struct intel_ring_buffer *to)
@@ -758,7 +775,7 @@ i915_gem_execbuffer_sync_rings(struct drm_i915_gem_object *obj,
                 return 0;
 
         /* XXX gpu semaphores are implicated in various hard hangs on SNB */
-        if (INTEL_INFO(obj->base.dev)->gen < 6 || !i915_semaphores)
+        if (!intel_enable_semaphores(obj->base.dev))
                 return i915_gem_object_wait_rendering(obj);
 
         idx = intel_ring_sync_index(from, to);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b080cc824001..a26d5b0a3690 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3303,10 +3303,10 @@
 /* or SDVOB */
 #define HDMIB   0xe1140
 #define  PORT_ENABLE    (1 << 31)
-#define  TRANSCODER_A   (0)
-#define  TRANSCODER_B   (1 << 30)
-#define  TRANSCODER(pipe)       ((pipe) << 30)
-#define  TRANSCODER_MASK   (1 << 30)
+#define  TRANSCODER(pipe)       ((pipe) << 30)
+#define  TRANSCODER_CPT(pipe)   ((pipe) << 29)
+#define  TRANSCODER_MASK        (1 << 30)
+#define  TRANSCODER_MASK_CPT    (3 << 29)
 #define  COLOR_FORMAT_8bpc      (0)
 #define  COLOR_FORMAT_12bpc     (3 << 26)
 #define  SDVOB_HOTPLUG_ENABLE   (1 << 23)
@@ -3447,8 +3447,30 @@
 #define  EDP_LINK_TRAIN_800_1200MV_0DB_SNB_B    (0x38<<22)
 #define  EDP_LINK_TRAIN_VOL_EMP_MASK_SNB        (0x3f<<22)
 
+/* IVB */
+#define EDP_LINK_TRAIN_400MV_0DB_IVB            (0x24 <<22)
+#define EDP_LINK_TRAIN_400MV_3_5DB_IVB          (0x2a <<22)
+#define EDP_LINK_TRAIN_400MV_6DB_IVB            (0x2f <<22)
+#define EDP_LINK_TRAIN_600MV_0DB_IVB            (0x30 <<22)
+#define EDP_LINK_TRAIN_600MV_3_5DB_IVB          (0x36 <<22)
+#define EDP_LINK_TRAIN_800MV_0DB_IVB            (0x38 <<22)
+#define EDP_LINK_TRAIN_800MV_3_5DB_IVB          (0x33 <<22)
+
+/* legacy values */
+#define EDP_LINK_TRAIN_500MV_0DB_IVB            (0x00 <<22)
+#define EDP_LINK_TRAIN_1000MV_0DB_IVB           (0x20 <<22)
+#define EDP_LINK_TRAIN_500MV_3_5DB_IVB          (0x02 <<22)
+#define EDP_LINK_TRAIN_1000MV_3_5DB_IVB         (0x22 <<22)
+#define EDP_LINK_TRAIN_1000MV_6DB_IVB           (0x23 <<22)
+
+#define  EDP_LINK_TRAIN_VOL_EMP_MASK_IVB        (0x3f<<22)
+
 #define  FORCEWAKE                              0xA18C
 #define  FORCEWAKE_ACK                          0x130090
+#define  FORCEWAKE_MT                           0xa188 /* multi-threaded */
+#define  FORCEWAKE_MT_ACK                       0x130040
+#define  ECOBUS                                 0xa180
+#define    FORCEWAKE_MT_ENABLE                  (1<<5)
 
 #define  GT_FIFO_FREE_ENTRIES                   0x120008
 #define    GT_FIFO_NUM_RESERVED_ENTRIES         20
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e77a863a3833..d809b038ca88 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -38,8 +38,8 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include "drm_dp_helper.h"
-
 #include "drm_crtc_helper.h"
+#include <linux/dma_remapping.h>
 
 #define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
 
@@ -4670,6 +4670,7 @@ static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
 /**
  * intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send
  * @crtc: CRTC structure
+ * @mode: requested mode
  *
  * A pipe may be connected to one or more outputs.  Based on the depth of the
  * attached framebuffer, choose a good color depth to use on the pipe.
@@ -4681,13 +4682,15 @@ static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
  *    HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc
  *    Displays may support a restricted set as well, check EDID and clamp as
  *      appropriate.
+ *    DP may want to dither down to 6bpc to fit larger modes
  *
  * RETURNS:
  * Dithering requirement (i.e. false if display bpc and pipe bpc match,
  * true if they don't match).
  */
 static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
-                                         unsigned int *pipe_bpp)
+                                         unsigned int *pipe_bpp,
+                                         struct drm_display_mode *mode)
 {
         struct drm_device *dev = crtc->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
@@ -4758,6 +4761,11 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
                 }
         }
 
+        if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+                DRM_DEBUG_KMS("Dithering DP to 6bpc\n");
+                display_bpc = 6;
+        }
+
         /*
          * We could just drive the pipe at the highest bpc all the time and
          * enable dithering as needed, but that costs bandwidth.  So choose
@@ -5019,6 +5027,16 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
                         pipeconf &= ~PIPECONF_DOUBLE_WIDE;
         }
 
+        /* default to 8bpc */
+        pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN);
+        if (is_dp) {
+                if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+                        pipeconf |= PIPECONF_BPP_6 |
+                                    PIPECONF_DITHER_EN |
+                                    PIPECONF_DITHER_TYPE_SP;
+                }
+        }
+
         dpll |= DPLL_VCO_ENABLE;
 
         DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
@@ -5480,7 +5498,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
         /* determine panel color depth */
         temp = I915_READ(PIPECONF(pipe));
         temp &= ~PIPE_BPC_MASK;
-        dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp);
+        dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode);
         switch (pipe_bpp) {
         case 18:
                 temp |= PIPE_6BPC;
@@ -7189,11 +7207,16 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
         work->old_fb_obj = intel_fb->obj;
         INIT_WORK(&work->work, intel_unpin_work_fn);
 
+        ret = drm_vblank_get(dev, intel_crtc->pipe);
+        if (ret)
+                goto free_work;
+
         /* We borrow the event spin lock for protecting unpin_work */
         spin_lock_irqsave(&dev->event_lock, flags);
         if (intel_crtc->unpin_work) {
                 spin_unlock_irqrestore(&dev->event_lock, flags);
                 kfree(work);
+                drm_vblank_put(dev, intel_crtc->pipe);
 
                 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
                 return -EBUSY;
@@ -7212,10 +7235,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 
         crtc->fb = fb;
 
-        ret = drm_vblank_get(dev, intel_crtc->pipe);
-        if (ret)
-                goto cleanup_objs;
-
         work->pending_flip_obj = obj;
 
         work->enable_stall_check = true;
@@ -7238,7 +7257,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 
 cleanup_pending:
         atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
-cleanup_objs:
         drm_gem_object_unreference(&work->old_fb_obj->base);
         drm_gem_object_unreference(&obj->base);
         mutex_unlock(&dev->struct_mutex);
@@ -7247,6 +7265,8 @@ cleanup_objs:
         intel_crtc->unpin_work = NULL;
         spin_unlock_irqrestore(&dev->event_lock, flags);
 
+        drm_vblank_put(dev, intel_crtc->pipe);
+free_work:
         kfree(work);
 
         return ret;
@@ -7887,6 +7907,33 @@ void intel_init_emon(struct drm_device *dev)
         dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK);
 }
 
+static bool intel_enable_rc6(struct drm_device *dev)
+{
+        /*
+         * Respect the kernel parameter if it is set
+         */
+        if (i915_enable_rc6 >= 0)
+                return i915_enable_rc6;
+
+        /*
+         * Disable RC6 on Ironlake
+         */
+        if (INTEL_INFO(dev)->gen == 5)
+                return 0;
+
+        /*
+         * Enable rc6 on Sandybridge if DMA remapping is disabled
+         */
+        if (INTEL_INFO(dev)->gen == 6) {
+                DRM_DEBUG_DRIVER("Sandybridge: intel_iommu_enabled %s -- RC6 %sabled\n",
+                                 intel_iommu_enabled ? "true" : "false",
+                                 !intel_iommu_enabled ? "en" : "dis");
+                return !intel_iommu_enabled;
+        }
+        DRM_DEBUG_DRIVER("RC6 enabled\n");
+        return 1;
+}
+
 void gen6_enable_rps(struct drm_i915_private *dev_priv)
 {
         u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
@@ -7923,7 +7970,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv)
         I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
         I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
 
-        if (i915_enable_rc6)
+        if (intel_enable_rc6(dev_priv->dev))
                 rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
                         GEN6_RC_CTL_RC6_ENABLE;
 
@@ -8372,7 +8419,7 @@ void ironlake_enable_rc6(struct drm_device *dev)
         /* rc6 disabled by default due to repeated reports of hanging during
          * boot and resume.
          */
-        if (!i915_enable_rc6)
+        if (!intel_enable_rc6(dev))
                 return;
 
         mutex_lock(&dev->struct_mutex);
@@ -8491,6 +8538,28 @@ static void intel_init_display(struct drm_device *dev)
 
         /* For FIFO watermark updates */
         if (HAS_PCH_SPLIT(dev)) {
+                dev_priv->display.force_wake_get = __gen6_gt_force_wake_get;
+                dev_priv->display.force_wake_put = __gen6_gt_force_wake_put;
+
+                /* IVB configs may use multi-threaded forcewake */
+                if (IS_IVYBRIDGE(dev)) {
+                        u32     ecobus;
+
+                        mutex_lock(&dev->struct_mutex);
+                        __gen6_gt_force_wake_mt_get(dev_priv);
+                        ecobus = I915_READ(ECOBUS);
+                        __gen6_gt_force_wake_mt_put(dev_priv);
+                        mutex_unlock(&dev->struct_mutex);
+
+                        if (ecobus & FORCEWAKE_MT_ENABLE) {
+                                DRM_DEBUG_KMS("Using MT version of forcewake\n");
+                                dev_priv->display.force_wake_get =
+                                        __gen6_gt_force_wake_mt_get;
+                                dev_priv->display.force_wake_put =
+                                        __gen6_gt_force_wake_mt_put;
+                        }
+                }
+
                 if (HAS_PCH_IBX(dev))
                         dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating;
                 else if (HAS_PCH_CPT(dev))
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 4d0358fad937..92b041b66e49 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -208,13 +208,15 @@ intel_dp_link_clock(uint8_t link_bw)
  */
 
 static int
-intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock)
+intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock, int check_bpp)
 {
         struct drm_crtc *crtc = intel_dp->base.base.crtc;
         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
         int bpp = 24;
 
-        if (intel_crtc)
+        if (check_bpp)
+                bpp = check_bpp;
+        else if (intel_crtc)
                 bpp = intel_crtc->bpp;
 
         return (pixel_clock * bpp + 9) / 10;
@@ -233,6 +235,7 @@ intel_dp_mode_valid(struct drm_connector *connector,
         struct intel_dp *intel_dp = intel_attached_dp(connector);
         int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp));
         int max_lanes = intel_dp_max_lane_count(intel_dp);
+        int max_rate, mode_rate;
 
         if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
                 if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay)
@@ -242,9 +245,17 @@ intel_dp_mode_valid(struct drm_connector *connector,
                         return MODE_PANEL;
         }
 
-        if (intel_dp_link_required(intel_dp, mode->clock)
-            > intel_dp_max_data_rate(max_link_clock, max_lanes))
-                return MODE_CLOCK_HIGH;
+        mode_rate = intel_dp_link_required(intel_dp, mode->clock, 0);
+        max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes);
+
+        if (mode_rate > max_rate) {
+                        mode_rate = intel_dp_link_required(intel_dp,
+                                                           mode->clock, 18);
+                        if (mode_rate > max_rate)
+                                return MODE_CLOCK_HIGH;
+                        else
+                                mode->private_flags |= INTEL_MODE_DP_FORCE_6BPC;
+        }
 
         if (mode->clock < 10000)
                 return MODE_CLOCK_LOW;
@@ -362,8 +373,8 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
          * clock divider.
          */
         if (is_cpu_edp(intel_dp)) {
-                if (IS_GEN6(dev))
-                        aux_clock_divider = 200; /* SNB eDP input clock at 400Mhz */
+                if (IS_GEN6(dev) || IS_GEN7(dev))
+                        aux_clock_divider = 200; /* SNB & IVB eDP input clock at 400Mhz */
                 else
                         aux_clock_divider = 225; /* eDP input clock at 450Mhz */
         } else if (HAS_PCH_SPLIT(dev))
@@ -672,6 +683,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
         int lane_count, clock;
         int max_lane_count = intel_dp_max_lane_count(intel_dp);
         int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0;
+        int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 0;
         static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
 
         if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
@@ -689,7 +701,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
                 for (clock = 0; clock <= max_clock; clock++) {
                         int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
 
-                        if (intel_dp_link_required(intel_dp, mode->clock)
+                        if (intel_dp_link_required(intel_dp, mode->clock, bpp)
                                         <= link_avail) {
                                 intel_dp->link_bw = bws[clock];
                                 intel_dp->lane_count = lane_count;
@@ -817,10 +829,11 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
         }
 
         /*
-         * There are three kinds of DP registers:
+         * There are four kinds of DP registers:
          *
          *      IBX PCH
-         *      CPU
+         *      SNB CPU
+         *      IVB CPU
          *      CPT PCH
          *
          * IBX PCH and CPU are the same for almost everything,
@@ -873,7 +886,25 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 
         /* Split out the IBX/CPU vs CPT settings */
 
-        if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) {
+        if (is_cpu_edp(intel_dp) && IS_GEN7(dev)) {
+                if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+                        intel_dp->DP |= DP_SYNC_HS_HIGH;
+                if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+                        intel_dp->DP |= DP_SYNC_VS_HIGH;
+                intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT;
+
+                if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN)
+                        intel_dp->DP |= DP_ENHANCED_FRAMING;
+
+                intel_dp->DP |= intel_crtc->pipe << 29;
+
+                /* don't miss out required setting for eDP */
+                intel_dp->DP |= DP_PLL_ENABLE;
+                if (adjusted_mode->clock < 200000)
+                        intel_dp->DP |= DP_PLL_FREQ_160MHZ;
+                else
+                        intel_dp->DP |= DP_PLL_FREQ_270MHZ;
+        } else if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) {
                 intel_dp->DP |= intel_dp->color_range;
 
                 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
@@ -1375,34 +1406,59 @@ static char	*link_train_names[] = {
  * These are source-specific values; current Intel hardware supports
  * a maximum voltage of 800mV and a maximum pre-emphasis of 6dB
  */
-#define I830_DP_VOLTAGE_MAX         DP_TRAIN_VOLTAGE_SWING_800
-#define I830_DP_VOLTAGE_MAX_CPT     DP_TRAIN_VOLTAGE_SWING_1200
 
 static uint8_t
-intel_dp_pre_emphasis_max(uint8_t voltage_swing)
+intel_dp_voltage_max(struct intel_dp *intel_dp)
 {
-        switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
-        case DP_TRAIN_VOLTAGE_SWING_400:
-                return DP_TRAIN_PRE_EMPHASIS_6;
-        case DP_TRAIN_VOLTAGE_SWING_600:
-                return DP_TRAIN_PRE_EMPHASIS_6;
-        case DP_TRAIN_VOLTAGE_SWING_800:
-                return DP_TRAIN_PRE_EMPHASIS_3_5;
-        case DP_TRAIN_VOLTAGE_SWING_1200:
-        default:
-                return DP_TRAIN_PRE_EMPHASIS_0;
+        struct drm_device *dev = intel_dp->base.base.dev;
+
+        if (IS_GEN7(dev) && is_cpu_edp(intel_dp))
+                return DP_TRAIN_VOLTAGE_SWING_800;
+        else if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+                return DP_TRAIN_VOLTAGE_SWING_1200;
+        else
+                return DP_TRAIN_VOLTAGE_SWING_800;
+}
+
+static uint8_t
+intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing)
+{
+        struct drm_device *dev = intel_dp->base.base.dev;
+
+        if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+                switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
+                case DP_TRAIN_VOLTAGE_SWING_400:
+                        return DP_TRAIN_PRE_EMPHASIS_6;
+                case DP_TRAIN_VOLTAGE_SWING_600:
+                case DP_TRAIN_VOLTAGE_SWING_800:
+                        return DP_TRAIN_PRE_EMPHASIS_3_5;
+                default:
+                        return DP_TRAIN_PRE_EMPHASIS_0;
+                }
+        } else {
+                switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
+                case DP_TRAIN_VOLTAGE_SWING_400:
+                        return DP_TRAIN_PRE_EMPHASIS_6;
+                case DP_TRAIN_VOLTAGE_SWING_600:
+                        return DP_TRAIN_PRE_EMPHASIS_6;
+                case DP_TRAIN_VOLTAGE_SWING_800:
+                        return DP_TRAIN_PRE_EMPHASIS_3_5;
+                case DP_TRAIN_VOLTAGE_SWING_1200:
+                default:
+                        return DP_TRAIN_PRE_EMPHASIS_0;
+                }
         }
 }
 
 static void
 intel_get_adjust_train(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE])
 {
-        struct drm_device *dev = intel_dp->base.base.dev;
         uint8_t v = 0;
         uint8_t p = 0;
         int lane;
         uint8_t *adjust_request = link_status + (DP_ADJUST_REQUEST_LANE0_1 - DP_LANE0_1_STATUS);
-        int voltage_max;
+        uint8_t voltage_max;
+        uint8_t preemph_max;
 
         for (lane = 0; lane < intel_dp->lane_count; lane++) {
                 uint8_t this_v = intel_get_adjust_request_voltage(adjust_request, lane);
@@ -1414,15 +1470,13 @@ intel_get_adjust_train(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_ST
                         p = this_p;
         }
 
-        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
-                voltage_max = I830_DP_VOLTAGE_MAX_CPT;
-        else
-                voltage_max = I830_DP_VOLTAGE_MAX;
+        voltage_max = intel_dp_voltage_max(intel_dp);
         if (v >= voltage_max)
                 v = voltage_max | DP_TRAIN_MAX_SWING_REACHED;
 
-        if (p >= intel_dp_pre_emphasis_max(v))
-                p = intel_dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
+        preemph_max = intel_dp_pre_emphasis_max(intel_dp, v);
+        if (p >= preemph_max)
+                p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
 
         for (lane = 0; lane < 4; lane++)
                 intel_dp->train_set[lane] = v | p;
@@ -1494,6 +1548,37 @@ intel_gen6_edp_signal_levels(uint8_t train_set)
         }
 }
 
+/* Gen7's DP voltage swing and pre-emphasis control */
+static uint32_t
+intel_gen7_edp_signal_levels(uint8_t train_set)
+{
+        int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
+                                         DP_TRAIN_PRE_EMPHASIS_MASK);
+        switch (signal_levels) {
+        case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_0:
+                return EDP_LINK_TRAIN_400MV_0DB_IVB;
+        case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_3_5:
+                return EDP_LINK_TRAIN_400MV_3_5DB_IVB;
+        case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_6:
+                return EDP_LINK_TRAIN_400MV_6DB_IVB;
+
+        case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_0:
+                return EDP_LINK_TRAIN_600MV_0DB_IVB;
+        case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_3_5:
+                return EDP_LINK_TRAIN_600MV_3_5DB_IVB;
+
+        case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_0:
+                return EDP_LINK_TRAIN_800MV_0DB_IVB;
+        case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_3_5:
+                return EDP_LINK_TRAIN_800MV_3_5DB_IVB;
+
+        default:
+                DRM_DEBUG_KMS("Unsupported voltage swing/pre-emphasis level:"
+                              "0x%x\n", signal_levels);
+                return EDP_LINK_TRAIN_500MV_0DB_IVB;
+        }
+}
+
 static uint8_t
 intel_get_lane_status(uint8_t link_status[DP_LINK_STATUS_SIZE],
                       int lane)
@@ -1599,7 +1684,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                                   DP_LINK_CONFIGURATION_SIZE);
 
         DP |= DP_PORT_EN;
-        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+
+        if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
                 DP &= ~DP_LINK_TRAIN_MASK_CPT;
         else
                 DP &= ~DP_LINK_TRAIN_MASK;
@@ -1613,7 +1699,11 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                 uint8_t     link_status[DP_LINK_STATUS_SIZE];
                 uint32_t    signal_levels;
 
-                if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
+
+                if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+                        signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]);
+                        DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels;
+                } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
                         signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
                         DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
                 } else {
@@ -1622,7 +1712,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                         DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
                 }
 
-                if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+                if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
                         reg = DP | DP_LINK_TRAIN_PAT_1_CPT;
                 else
                         reg = DP | DP_LINK_TRAIN_PAT_1;
@@ -1703,7 +1793,10 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                         break;
                 }
 
-                if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
+                if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+                        signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]);
+                        DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels;
+                } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
                         signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
                         DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
                 } else {
@@ -1711,7 +1804,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                         DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
                 }
 
-                if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+                if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
                         reg = DP | DP_LINK_TRAIN_PAT_2_CPT;
                 else
                         reg = DP | DP_LINK_TRAIN_PAT_2;
@@ -1752,7 +1845,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                 ++tries;
         }
 
-        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+        if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
                 reg = DP | DP_LINK_TRAIN_OFF_CPT;
         else
                 reg = DP | DP_LINK_TRAIN_OFF;
@@ -1782,7 +1875,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
                 udelay(100);
         }
 
-        if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) {
+        if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) {
                 DP &= ~DP_LINK_TRAIN_MASK_CPT;
                 I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE_CPT);
         } else {
@@ -1794,7 +1887,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
         msleep(17);
 
         if (is_edp(intel_dp)) {
-                if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+                if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
                         DP |= DP_LINK_TRAIN_OFF_CPT;
                 else
                         DP |= DP_LINK_TRAIN_OFF;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index bd9a604b73da..a1b4343814e8 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -110,6 +110,7 @@
 /* drm_display_mode->private_flags */
 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
+#define INTEL_MODE_DP_FORCE_6BPC (0x10)
 
 static inline void
 intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 42f165a520de..e44191132ac4 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -715,6 +715,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"),
                 },
         },
+        {
+                .callback = intel_no_lvds_dmi_callback,
+                .ident = "Asus AT5NM10T-I",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+                        DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"),
+                },
+        },
 
         { }     /* terminating entry */
 };
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 21f60b7d69a3..04d79fd1dc9d 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -178,13 +178,10 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev)
         if (HAS_PCH_SPLIT(dev)) {
                 max >>= 16;
         } else {
-                if (IS_PINEVIEW(dev)) {
+                if (INTEL_INFO(dev)->gen < 4)
                         max >>= 17;
-                } else {
+                else
                         max >>= 16;
-                        if (INTEL_INFO(dev)->gen < 4)
-                                max &= ~1;
-                }
 
                 if (is_backlight_combination_mode(dev))
                         max *= 0xff;
@@ -203,13 +200,12 @@ u32 intel_panel_get_backlight(struct drm_device *dev)
                 val = I915_READ(BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
         } else {
                 val = I915_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
-                if (IS_PINEVIEW(dev))
+                if (INTEL_INFO(dev)->gen < 4)
                         val >>= 1;
 
                 if (is_backlight_combination_mode(dev)) {
                         u8 lbpc;
 
-                        val &= ~1;
                         pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc);
                         val *= lbpc;
                 }
@@ -246,11 +242,9 @@ static void intel_panel_actually_set_backlight(struct drm_device *dev, u32 level
         }
 
         tmp = I915_READ(BLC_PWM_CTL);
-        if (IS_PINEVIEW(dev)) {
-                tmp &= ~(BACKLIGHT_DUTY_CYCLE_MASK - 1);
+        if (INTEL_INFO(dev)->gen < 4) 
                 level <<= 1;
-        } else
-                tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK;
+        tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK;
         I915_WRITE(BLC_PWM_CTL, tmp | level);
 }
 
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 3003fb25aefd..f7b9268df266 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -50,6 +50,7 @@
 #define IS_TMDS(c)      (c->output_flag & SDVO_TMDS_MASK)
 #define IS_LVDS(c)      (c->output_flag & SDVO_LVDS_MASK)
 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
+#define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
 
 
 static const char *tv_format_names[] = {
@@ -1086,8 +1087,12 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
                 }
                 sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
         }
-        if (intel_crtc->pipe == 1)
-                sdvox |= SDVO_PIPE_B_SELECT;
+
+        if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
+                sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
+        else
+                sdvox |= TRANSCODER(intel_crtc->pipe);
+
         if (intel_sdvo->has_hdmi_audio)
                 sdvox |= SDVO_AUDIO_ENABLE;
 
@@ -1314,6 +1319,18 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
         return status;
 }
 
+static bool
+intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
+                                  struct edid *edid)
+{
+        bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
+        bool connector_is_digital = !!IS_DIGITAL(sdvo);
+
+        DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
+                      connector_is_digital, monitor_is_digital);
+        return connector_is_digital == monitor_is_digital;
+}
+
 static enum drm_connector_status
 intel_sdvo_detect(struct drm_connector *connector, bool force)
 {
@@ -1358,10 +1375,12 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
                 if (edid == NULL)
                         edid = intel_sdvo_get_analog_edid(connector);
                 if (edid != NULL) {
-                        if (edid->input & DRM_EDID_INPUT_DIGITAL)
-                                ret = connector_status_disconnected;
-                        else
+                        if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
+                                                              edid))
                                 ret = connector_status_connected;
+                        else
+                                ret = connector_status_disconnected;
+
                         connector->display_info.raw_edid = NULL;
                         kfree(edid);
                 } else
@@ -1402,11 +1421,8 @@ static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
                 edid = intel_sdvo_get_analog_edid(connector);
 
         if (edid != NULL) {
-                struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
-                bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
-                bool connector_is_digital = !!IS_TMDS(intel_sdvo_connector);
-
-                if (connector_is_digital == monitor_is_digital) {
+                if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
+                                                      edid)) {
                         drm_mode_connector_update_edid_property(connector, edid);
                         drm_add_edid_modes(connector, edid);
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 06e413e6a920..4b27efa4405b 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -233,13 +233,12 @@ u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder)
                 switch (radeon_encoder->encoder_id) {
                 case ENCODER_OBJECT_ID_TRAVIS:
                 case ENCODER_OBJECT_ID_NUTMEG:
-                        return true;
+                        return radeon_encoder->encoder_id;
                 default:
-                        return false;
+                        return ENCODER_OBJECT_ID_NONE;
                 }
         }
-
-        return false;
+        return ENCODER_OBJECT_ID_NONE;
 }
 
 void radeon_panel_mode_fixup(struct drm_encoder *encoder,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 8cca91a93bde..dc279706ca70 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -390,6 +390,11 @@ extern int vmw_context_check(struct vmw_private *dev_priv,
                              struct ttm_object_file *tfile,
                              int id,
                              struct vmw_resource **p_res);
+extern int vmw_user_lookup_handle(struct vmw_private *dev_priv,
+                                  struct ttm_object_file *tfile,
+                                  uint32_t handle,
+                                  struct vmw_surface **out_surf,
+                                  struct vmw_dma_buffer **out_buf);
 extern void vmw_surface_res_free(struct vmw_resource *res);
 extern int vmw_surface_init(struct vmw_private *dev_priv,
                             struct vmw_surface *srf,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index 03bbc2a6f9a7..a0c2f12b1e1b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -33,6 +33,7 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
 {
         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
         uint32_t fifo_min, hwversion;
+        const struct vmw_fifo_state *fifo = &dev_priv->fifo;
 
         if (!(dev_priv->capabilities & SVGA_CAP_EXTENDED_FIFO))
                 return false;
@@ -41,7 +42,12 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
         if (fifo_min <= SVGA_FIFO_3D_HWVERSION * sizeof(unsigned int))
                 return false;
 
-        hwversion = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION);
+        hwversion = ioread32(fifo_mem +
+                             ((fifo->capabilities &
+                               SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
+                              SVGA_FIFO_3D_HWVERSION_REVISED :
+                              SVGA_FIFO_3D_HWVERSION));
+
         if (hwversion == 0)
                 return false;
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index 3f6343502d1f..66917c6c3813 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -58,8 +58,14 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
         case DRM_VMW_PARAM_FIFO_HW_VERSION:
         {
                 __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
-
-                param->value = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION);
+                const struct vmw_fifo_state *fifo = &dev_priv->fifo;
+
+                param->value =
+                        ioread32(fifo_mem +
+                                 ((fifo->capabilities &
+                                   SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
+                                  SVGA_FIFO_3D_HWVERSION_REVISED :
+                                  SVGA_FIFO_3D_HWVERSION));
                 break;
         }
         default:
@@ -140,7 +146,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
                 goto out_clips;
         }
 
-        clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+        clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
         if (clips == NULL) {
                 DRM_ERROR("Failed to allocate clip rect list.\n");
                 ret = -ENOMEM;
@@ -166,13 +172,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
                 ret = -EINVAL;
                 goto out_no_fb;
         }
-
         vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj));
-        if (!vfb->dmabuf) {
-                DRM_ERROR("Framebuffer not dmabuf backed.\n");
-                ret = -EINVAL;
-                goto out_no_fb;
-        }
 
         ret = ttm_read_lock(&vmaster->lock, true);
         if (unlikely(ret != 0))
@@ -232,7 +232,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
                 goto out_clips;
         }
 
-        clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+        clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
         if (clips == NULL) {
                 DRM_ERROR("Failed to allocate clip rect list.\n");
                 ret = -ENOMEM;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 37d40545ed77..8aa1dbb45c67 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -31,6 +31,44 @@
 /* Might need a hrtimer here? */
 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
 
+
+struct vmw_clip_rect {
+        int x1, x2, y1, y2;
+};
+
+/**
+ * Clip @num_rects number of @rects against @clip storing the
+ * results in @out_rects and the number of passed rects in @out_num.
+ */
+void vmw_clip_cliprects(struct drm_clip_rect *rects,
+                        int num_rects,
+                        struct vmw_clip_rect clip,
+                        SVGASignedRect *out_rects,
+                        int *out_num)
+{
+        int i, k;
+
+        for (i = 0, k = 0; i < num_rects; i++) {
+                int x1 = max_t(int, clip.x1, rects[i].x1);
+                int y1 = max_t(int, clip.y1, rects[i].y1);
+                int x2 = min_t(int, clip.x2, rects[i].x2);
+                int y2 = min_t(int, clip.y2, rects[i].y2);
+
+                if (x1 >= x2)
+                        continue;
+                if (y1 >= y2)
+                        continue;
+
+                out_rects[k].left   = x1;
+                out_rects[k].top    = y1;
+                out_rects[k].right  = x2;
+                out_rects[k].bottom = y2;
+                k++;
+        }
+
+        *out_num = k;
+}
+
 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
 {
         if (du->cursor_surface)
@@ -82,6 +120,43 @@ int vmw_cursor_update_image(struct vmw_private *dev_priv,
         return 0;
 }
 
+int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
+                             struct vmw_dma_buffer *dmabuf,
+                             u32 width, u32 height,
+                             u32 hotspotX, u32 hotspotY)
+{
+        struct ttm_bo_kmap_obj map;
+        unsigned long kmap_offset;
+        unsigned long kmap_num;
+        void *virtual;
+        bool dummy;
+        int ret;
+
+        kmap_offset = 0;
+        kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+        ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
+        if (unlikely(ret != 0)) {
+                DRM_ERROR("reserve failed\n");
+                return -EINVAL;
+        }
+
+        ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
+        if (unlikely(ret != 0))
+                goto err_unreserve;
+
+        virtual = ttm_kmap_obj_virtual(&map, &dummy);
+        ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
+                                      hotspotX, hotspotY);
+
+        ttm_bo_kunmap(&map);
+err_unreserve:
+        ttm_bo_unreserve(&dmabuf->base);
+
+        return ret;
+}
+
+
 void vmw_cursor_update_position(struct vmw_private *dev_priv,
                                 bool show, int x, int y)
 {
@@ -110,24 +185,21 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
                 return -EINVAL;
 
         if (handle) {
-                ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
-                                                     handle, &surface);
-                if (!ret) {
-                        if (!surface->snooper.image) {
-                                DRM_ERROR("surface not suitable for cursor\n");
-                                vmw_surface_unreference(&surface);
-                                return -EINVAL;
-                        }
-                } else {
-                        ret = vmw_user_dmabuf_lookup(tfile,
-                                                     handle, &dmabuf);
-                        if (ret) {
-                                DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
-                                return -EINVAL;
-                        }
+                ret = vmw_user_lookup_handle(dev_priv, tfile,
+                                             handle, &surface, &dmabuf);
+                if (ret) {
+                        DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
+                        return -EINVAL;
                 }
         }
 
+        /* need to do this before taking down old image */
+        if (surface && !surface->snooper.image) {
+                DRM_ERROR("surface not suitable for cursor\n");
+                vmw_surface_unreference(&surface);
+                return -EINVAL;
+        }
+
         /* takedown old cursor */
         if (du->cursor_surface) {
                 du->cursor_surface->snooper.crtc = NULL;
@@ -146,36 +218,11 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
                                         64, 64, du->hotspot_x, du->hotspot_y);
         } else if (dmabuf) {
-                struct ttm_bo_kmap_obj map;
-                unsigned long kmap_offset;
-                unsigned long kmap_num;
-                void *virtual;
-                bool dummy;
-
                 /* vmw_user_surface_lookup takes one reference */
                 du->cursor_dmabuf = dmabuf;
 
-                kmap_offset = 0;
-                kmap_num = (64*64*4) >> PAGE_SHIFT;
-
-                ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
-                if (unlikely(ret != 0)) {
-                        DRM_ERROR("reserve failed\n");
-                        return -EINVAL;
-                }
-
-                ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
-                if (unlikely(ret != 0))
-                        goto err_unreserve;
-
-                virtual = ttm_kmap_obj_virtual(&map, &dummy);
-                vmw_cursor_update_image(dev_priv, virtual, 64, 64,
-                                        du->hotspot_x, du->hotspot_y);
-
-                ttm_bo_kunmap(&map);
-err_unreserve:
-                ttm_bo_unreserve(&dmabuf->base);
-
+                ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
+                                               du->hotspot_x, du->hotspot_y);
         } else {
                 vmw_cursor_update_position(dev_priv, false, 0, 0);
                 return 0;
@@ -377,8 +424,9 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv,
                                 struct drm_clip_rect *clips,
                                 unsigned num_clips, int inc)
 {
-        struct drm_clip_rect *clips_ptr;
         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
+        struct drm_clip_rect *clips_ptr;
+        struct drm_clip_rect *tmp;
         struct drm_crtc *crtc;
         size_t fifo_size;
         int i, num_units;
@@ -391,7 +439,6 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv,
         } *cmd;
         SVGASignedRect *blits;
 
-
         num_units = 0;
         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
                             head) {
@@ -402,13 +449,24 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv,
 
         BUG_ON(!clips || !num_clips);
 
+        tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
+        if (unlikely(tmp == NULL)) {
+                DRM_ERROR("Temporary cliprect memory alloc failed.\n");
+                return -ENOMEM;
+        }
+
         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
         cmd = kzalloc(fifo_size, GFP_KERNEL);
         if (unlikely(cmd == NULL)) {
                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto out_free_tmp;
         }
 
+        /* setup blits pointer */
+        blits = (SVGASignedRect *)&cmd[1];
+
+        /* initial clip region */
         left = clips->x1;
         right = clips->x2;
         top = clips->y1;
@@ -434,45 +492,60 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv,
         cmd->body.srcRect.bottom = bottom;
 
         clips_ptr = clips;
-        blits = (SVGASignedRect *)&cmd[1];
         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
-                blits[i].left   = clips_ptr->x1 - left;
-                blits[i].right  = clips_ptr->x2 - left;
-                blits[i].top    = clips_ptr->y1 - top;
-                blits[i].bottom = clips_ptr->y2 - top;
+                tmp[i].x1 = clips_ptr->x1 - left;
+                tmp[i].x2 = clips_ptr->x2 - left;
+                tmp[i].y1 = clips_ptr->y1 - top;
+                tmp[i].y2 = clips_ptr->y2 - top;
         }
 
         /* do per unit writing, reuse fifo for each */
         for (i = 0; i < num_units; i++) {
                 struct vmw_display_unit *unit = units[i];
-                int clip_x1 = left - unit->crtc.x;
-                int clip_y1 = top - unit->crtc.y;
-                int clip_x2 = right - unit->crtc.x;
-                int clip_y2 = bottom - unit->crtc.y;
+                struct vmw_clip_rect clip;
+                int num;
+
+                clip.x1 = left - unit->crtc.x;
+                clip.y1 = top - unit->crtc.y;
+                clip.x2 = right - unit->crtc.x;
+                clip.y2 = bottom - unit->crtc.y;
 
                 /* skip any crtcs that misses the clip region */
-                if (clip_x1 >= unit->crtc.mode.hdisplay ||
-                    clip_y1 >= unit->crtc.mode.vdisplay ||
-                    clip_x2 <= 0 || clip_y2 <= 0)
+                if (clip.x1 >= unit->crtc.mode.hdisplay ||
+                    clip.y1 >= unit->crtc.mode.vdisplay ||
+                    clip.x2 <= 0 || clip.y2 <= 0)
                         continue;
 
+                /*
+                 * In order for the clip rects to be correctly scaled
+                 * the src and dest rects needs to be the same size.
+                 */
+                cmd->body.destRect.left = clip.x1;
+                cmd->body.destRect.right = clip.x2;
+                cmd->body.destRect.top = clip.y1;
+                cmd->body.destRect.bottom = clip.y2;
+
+                /* create a clip rect of the crtc in dest coords */
+                clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
+                clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
+                clip.x1 = 0 - clip.x1;
+                clip.y1 = 0 - clip.y1;
+
                 /* need to reset sid as it is changed by execbuf */
                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
-
                 cmd->body.destScreenId = unit->unit;
 
-                /*
-                 * The blit command is a lot more resilient then the
-                 * readback command when it comes to clip rects. So its
-                 * okay to go out of bounds.
-                 */
+                /* clip and write blits to cmd stream */
+                vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 
-                cmd->body.destRect.left = clip_x1;
-                cmd->body.destRect.right = clip_x2;
-                cmd->body.destRect.top = clip_y1;
-                cmd->body.destRect.bottom = clip_y2;
+                /* if no cliprects hit skip this */
+                if (num == 0)
+                        continue;
 
 
+                /* recalculate package length */
+                fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
+                cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
                                           fifo_size, 0, NULL);
 
@@ -480,7 +553,10 @@ static int do_surface_dirty_sou(struct vmw_private *dev_priv,
                         break;
         }
 
+
         kfree(cmd);
+out_free_tmp:
+        kfree(tmp);
 
         return ret;
 }
@@ -556,6 +632,10 @@ static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
          * Sanity checks.
          */
 
+        /* Surface must be marked as a scanout. */
+        if (unlikely(!surface->scanout))
+                return -EINVAL;
+
         if (unlikely(surface->mip_levels[0] != 1 ||
                      surface->num_sizes != 1 ||
                      surface->sizes[0].width < mode_cmd->width ||
@@ -782,6 +862,7 @@ static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
+                        int move_x, move_y;
 
                         /* skip any crtcs that misses the clip region */
                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
@@ -789,12 +870,21 @@ static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
                             clip_x2 <= 0 || clip_y2 <= 0)
                                 continue;
 
+                        /* clip size to crtc size */
+                        clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
+                        clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
+
+                        /* translate both src and dest to bring clip into screen */
+                        move_x = min_t(int, clip_x1, 0);
+                        move_y = min_t(int, clip_y1, 0);
+
+                        /* actual translate done here */
                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
                         blits[hit_num].body.destScreenId = unit->unit;
-                        blits[hit_num].body.srcOrigin.x = clips_ptr->x1;
-                        blits[hit_num].body.srcOrigin.y = clips_ptr->y1;
-                        blits[hit_num].body.destRect.left = clip_x1;
-                        blits[hit_num].body.destRect.top = clip_y1;
+                        blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
+                        blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
+                        blits[hit_num].body.destRect.left = clip_x1 - move_x;
+                        blits[hit_num].body.destRect.top = clip_y1 - move_y;
                         blits[hit_num].body.destRect.right = clip_x2;
                         blits[hit_num].body.destRect.bottom = clip_y2;
                         hit_num++;
@@ -1033,46 +1123,29 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
                 return ERR_PTR(-ENOENT);
         }
 
-        /**
-         * End conditioned code.
-         */
-
-        ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
-                                             mode_cmd->handle, &surface);
+        /* returns either a dmabuf or surface */
+        ret = vmw_user_lookup_handle(dev_priv, tfile,
+                                     mode_cmd->handle,
+                                     &surface, &bo);
         if (ret)
-                goto try_dmabuf;
-
-        if (!surface->scanout)
-                goto err_not_scanout;
-
-        ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface,
-                                              &vfb, mode_cmd);
-
-        /* vmw_user_surface_lookup takes one ref so does new_fb */
-        vmw_surface_unreference(&surface);
-
-        if (ret) {
-                DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
-                ttm_base_object_unref(&user_obj);
-                return ERR_PTR(ret);
-        } else
-                vfb->user_obj = user_obj;
-        return &vfb->base;
-
-try_dmabuf:
-        DRM_INFO("%s: trying buffer\n", __func__);
-
-        ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
-        if (ret) {
-                DRM_ERROR("failed to find buffer: %i\n", ret);
-                return ERR_PTR(-ENOENT);
-        }
-
-        ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
-                                             mode_cmd);
+                goto err_out;
+
+        /* Create the new framebuffer depending one what we got back */
+        if (bo)
+                ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
+                                                     mode_cmd);
+        else if (surface)
+                ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
+                                                      surface, &vfb, mode_cmd);
+        else
+                BUG();
 
-        /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
-        vmw_dmabuf_unreference(&bo);
+err_out:
+        /* vmw_user_lookup_handle takes one ref so does new_fb */
+        if (bo)
+                vmw_dmabuf_unreference(&bo);
+        if (surface)
+                vmw_surface_unreference(&surface);
 
         if (ret) {
                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
@@ -1082,14 +1155,6 @@ try_dmabuf:
                 vfb->user_obj = user_obj;
 
         return &vfb->base;
-
-err_not_scanout:
-        DRM_ERROR("surface not marked as scanout\n");
-        /* vmw_user_surface_lookup takes one ref */
-        vmw_surface_unreference(&surface);
-        ttm_base_object_unref(&user_obj);
-
-        return ERR_PTR(-EINVAL);
 }
 
 static struct drm_mode_config_funcs vmw_kms_funcs = {
@@ -1106,10 +1171,12 @@ int vmw_kms_present(struct vmw_private *dev_priv,
                     uint32_t num_clips)
 {
         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
+        struct drm_clip_rect *tmp;
         struct drm_crtc *crtc;
         size_t fifo_size;
         int i, k, num_units;
         int ret = 0; /* silence warning */
+        int left, right, top, bottom;
 
         struct {
                 SVGA3dCmdHeader header;
@@ -1127,60 +1194,95 @@ int vmw_kms_present(struct vmw_private *dev_priv,
         BUG_ON(surface == NULL);
         BUG_ON(!clips || !num_clips);
 
+        tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
+        if (unlikely(tmp == NULL)) {
+                DRM_ERROR("Temporary cliprect memory alloc failed.\n");
+                return -ENOMEM;
+        }
+
         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
         cmd = kmalloc(fifo_size, GFP_KERNEL);
         if (unlikely(cmd == NULL)) {
                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto out_free_tmp;
+        }
+
+        left = clips->x;
+        right = clips->x + clips->w;
+        top = clips->y;
+        bottom = clips->y + clips->h;
+
+        for (i = 1; i < num_clips; i++) {
+                left = min_t(int, left, (int)clips[i].x);
+                right = max_t(int, right, (int)clips[i].x + clips[i].w);
+                top = min_t(int, top, (int)clips[i].y);
+                bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
         }
 
         /* only need to do this once */
         memset(cmd, 0, fifo_size);
         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
-        cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
-
-        cmd->body.srcRect.left = 0;
-        cmd->body.srcRect.right = surface->sizes[0].width;
-        cmd->body.srcRect.top = 0;
-        cmd->body.srcRect.bottom = surface->sizes[0].height;
 
         blits = (SVGASignedRect *)&cmd[1];
+
+        cmd->body.srcRect.left = left;
+        cmd->body.srcRect.right = right;
+        cmd->body.srcRect.top = top;
+        cmd->body.srcRect.bottom = bottom;
+
         for (i = 0; i < num_clips; i++) {
-                blits[i].left   = clips[i].x;
-                blits[i].right  = clips[i].x + clips[i].w;
-                blits[i].top    = clips[i].y;
-                blits[i].bottom = clips[i].y + clips[i].h;
+                tmp[i].x1 = clips[i].x - left;
+                tmp[i].x2 = clips[i].x + clips[i].w - left;
+                tmp[i].y1 = clips[i].y - top;
+                tmp[i].y2 = clips[i].y + clips[i].h - top;
         }
 
         for (k = 0; k < num_units; k++) {
                 struct vmw_display_unit *unit = units[k];
-                int clip_x1 = destX - unit->crtc.x;
-                int clip_y1 = destY - unit->crtc.y;
-                int clip_x2 = clip_x1 + surface->sizes[0].width;
-                int clip_y2 = clip_y1 + surface->sizes[0].height;
+                struct vmw_clip_rect clip;
+                int num;
+
+                clip.x1 = left + destX - unit->crtc.x;
+                clip.y1 = top + destY - unit->crtc.y;
+                clip.x2 = right + destX - unit->crtc.x;
+                clip.y2 = bottom + destY - unit->crtc.y;
 
                 /* skip any crtcs that misses the clip region */
-                if (clip_x1 >= unit->crtc.mode.hdisplay ||
-                    clip_y1 >= unit->crtc.mode.vdisplay ||
-                    clip_x2 <= 0 || clip_y2 <= 0)
+                if (clip.x1 >= unit->crtc.mode.hdisplay ||
+                    clip.y1 >= unit->crtc.mode.vdisplay ||
+                    clip.x2 <= 0 || clip.y2 <= 0)
                         continue;
 
+                /*
+                 * In order for the clip rects to be correctly scaled
+                 * the src and dest rects needs to be the same size.
+                 */
+                cmd->body.destRect.left = clip.x1;
+                cmd->body.destRect.right = clip.x2;
+                cmd->body.destRect.top = clip.y1;
+                cmd->body.destRect.bottom = clip.y2;
+
+                /* create a clip rect of the crtc in dest coords */
+                clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
+                clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
+                clip.x1 = 0 - clip.x1;
+                clip.y1 = 0 - clip.y1;
+
                 /* need to reset sid as it is changed by execbuf */
                 cmd->body.srcImage.sid = sid;
-
                 cmd->body.destScreenId = unit->unit;
 
-                /*
-                 * The blit command is a lot more resilient then the
-                 * readback command when it comes to clip rects. So its
-                 * okay to go out of bounds.
-                 */
+                /* clip and write blits to cmd stream */
+                vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 
-                cmd->body.destRect.left = clip_x1;
-                cmd->body.destRect.right = clip_x2;
-                cmd->body.destRect.top = clip_y1;
-                cmd->body.destRect.bottom = clip_y2;
+                /* if no cliprects hit skip this */
+                if (num == 0)
+                        continue;
 
+                /* recalculate package length */
+                fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
+                cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
                                           fifo_size, 0, NULL);
 
@@ -1189,6 +1291,8 @@ int vmw_kms_present(struct vmw_private *dev_priv,
         }
 
         kfree(cmd);
+out_free_tmp:
+        kfree(tmp);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index af8e6e5bd964..e1cb8556355f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -62,9 +62,14 @@ struct vmw_framebuffer {
 int vmw_cursor_update_image(struct vmw_private *dev_priv,
                             u32 *image, u32 width, u32 height,
                             u32 hotspotX, u32 hotspotY);
+int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
+                             struct vmw_dma_buffer *dmabuf,
+                             u32 width, u32 height,
+                             u32 hotspotX, u32 hotspotY);
 void vmw_cursor_update_position(struct vmw_private *dev_priv,
                                 bool show, int x, int y);
 
+
 /**
  * Base class display unit.
  *
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index 90c5e3928491..8f8dbd43c33d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -74,9 +74,10 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 {
         struct vmw_legacy_display *lds = dev_priv->ldu_priv;
         struct vmw_legacy_display_unit *entry;
+        struct vmw_display_unit *du = NULL;
         struct drm_framebuffer *fb = NULL;
         struct drm_crtc *crtc = NULL;
-        int i = 0;
+        int i = 0, ret;
 
         /* If there is no display topology the host just assumes
          * that the guest will set the same layout as the host.
@@ -129,6 +130,25 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 
         lds->last_num_active = lds->num_active;
 
+
+        /* Find the first du with a cursor. */
+        list_for_each_entry(entry, &lds->active, active) {
+                du = &entry->base;
+
+                if (!du->cursor_dmabuf)
+                        continue;
+
+                ret = vmw_cursor_update_dmabuf(dev_priv,
+                                               du->cursor_dmabuf,
+                                               64, 64,
+                                               du->hotspot_x,
+                                               du->hotspot_y);
+                if (ret == 0)
+                        break;
+
+                DRM_ERROR("Could not update cursor image\n");
+        }
+
         return 0;
 }
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 86c5e4cceb31..1c7f09e26819 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -1190,6 +1190,29 @@ void vmw_resource_unreserve(struct list_head *list)
                 write_unlock(lock);
 }
 
+/**
+ * Helper function that looks either a surface or dmabuf.
+ *
+ * The pointer this pointed at by out_surf and out_buf needs to be null.
+ */
+int vmw_user_lookup_handle(struct vmw_private *dev_priv,
+                           struct ttm_object_file *tfile,
+                           uint32_t handle,
+                           struct vmw_surface **out_surf,
+                           struct vmw_dma_buffer **out_buf)
+{
+        int ret;
+
+        BUG_ON(*out_surf || *out_buf);
+
+        ret = vmw_user_surface_lookup_handle(dev_priv, tfile, handle, out_surf);
+        if (!ret)
+                return 0;
+
+        ret = vmw_user_dmabuf_lookup(tfile, handle, out_buf);
+        return ret;
+}
+
 
 int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv,
                                    struct ttm_object_file *tfile,
diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index 7a48b1eb4233..5253d23361d9 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -59,7 +59,7 @@ static ssize_t jz4740_hwmon_read_adcin(struct device *dev,
 {
         struct jz4740_hwmon *hwmon = dev_get_drvdata(dev);
         struct completion *completion = &hwmon->read_completion;
-        unsigned long t;
+        long t;
         unsigned long val;
         int ret;
 
@@ -203,7 +203,7 @@ static int __devexit jz4740_hwmon_remove(struct platform_device *pdev)
         return 0;
 }
 
-struct platform_driver jz4740_hwmon_driver = {
+static struct platform_driver jz4740_hwmon_driver = {
         .probe  = jz4740_hwmon_probe,
         .remove = __devexit_p(jz4740_hwmon_remove),
         .driver = {
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 8cebef49aeac..18936ac9d51c 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -893,6 +893,13 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev,
         /* Set the number of I2C channel instance */
         adap_info->ch_num = id->driver_data;
 
+        ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
+                  KBUILD_MODNAME, adap_info);
+        if (ret) {
+                pch_pci_err(pdev, "request_irq FAILED\n");
+                goto err_request_irq;
+        }
+
         for (i = 0; i < adap_info->ch_num; i++) {
                 pch_adap = &adap_info->pch_data[i].pch_adapter;
                 adap_info->pch_i2c_suspended = false;
@@ -910,28 +917,23 @@ static int __devinit pch_i2c_probe(struct pci_dev *pdev,
 
                 pch_adap->dev.parent = &pdev->dev;
 
+                pch_i2c_init(&adap_info->pch_data[i]);
                 ret = i2c_add_adapter(pch_adap);
                 if (ret) {
                         pch_pci_err(pdev, "i2c_add_adapter[ch:%d] FAILED\n", i);
-                        goto err_i2c_add_adapter;
+                        goto err_add_adapter;
                 }
-
-                pch_i2c_init(&adap_info->pch_data[i]);
-        }
-        ret = request_irq(pdev->irq, pch_i2c_handler, IRQF_SHARED,
-                  KBUILD_MODNAME, adap_info);
-        if (ret) {
-                pch_pci_err(pdev, "request_irq FAILED\n");
-                goto err_i2c_add_adapter;
         }
 
         pci_set_drvdata(pdev, adap_info);
         pch_pci_dbg(pdev, "returns %d.\n", ret);
         return 0;
 
-err_i2c_add_adapter:
+err_add_adapter:
         for (j = 0; j < i; j++)
                 i2c_del_adapter(&adap_info->pch_data[j].pch_adapter);
+        free_irq(pdev->irq, adap_info);
+err_request_irq:
         pci_iounmap(pdev, base_addr);
 err_pci_iomap:
         pci_release_regions(pdev);
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index a43d0023446a..fa23faa20f0e 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1047,13 +1047,14 @@ omap_i2c_probe(struct platform_device *pdev)
                  * size. This is to ensure that we can handle the status on int
                  * call back latencies.
                  */
-                if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) {
-                        dev->fifo_size = 0;
+
+                dev->fifo_size = (dev->fifo_size / 2);
+
+                if (dev->rev >= OMAP_I2C_REV_ON_3530_4430)
                         dev->b_hw = 0; /* Disable hardware fixes */
-                } else {
-                        dev->fifo_size = (dev->fifo_size / 2);
+                else
                         dev->b_hw = 1; /* Enable hardware fixes */
-                }
+
                 /* calculate wakeup latency constraint for MPU */
                 if (dev->set_mpu_wkup_lat != NULL)
                         dev->latency = (1000000 * dev->fifo_size) /
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 2754cef86a06..4c1718081685 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -534,6 +534,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c,
 
         /* first, try busy waiting briefly */
         do {
+                cpu_relax();
                 iicstat = readl(i2c->regs + S3C2410_IICSTAT);
         } while ((iicstat & S3C2410_IICSTAT_START) && --spins);
 
@@ -786,7 +787,7 @@ static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c)
 #else
 static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c)
 {
-        return -EINVAL;
+        return 0;
 }
 
 static void s3c24xx_i2c_dt_gpio_free(struct s3c24xx_i2c *i2c)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 09e66cce05d3..236a88c1ca87 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2513,6 +2513,9 @@ static int cma_resolve_ib_udp(struct rdma_id_private *id_priv,
 
         req.private_data_len = sizeof(struct cma_hdr) +
                                conn_param->private_data_len;
+        if (req.private_data_len < conn_param->private_data_len)
+                return -EINVAL;
+
         req.private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
         if (!req.private_data)
                 return -ENOMEM;
@@ -2562,6 +2565,9 @@ static int cma_connect_ib(struct rdma_id_private *id_priv,
         memset(&req, 0, sizeof req);
         offset = cma_user_data_offset(id_priv->id.ps);
         req.private_data_len = offset + conn_param->private_data_len;
+        if (req.private_data_len < conn_param->private_data_len)
+                return -EINVAL;
+
         private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
         if (!private_data)
                 return -ENOMEM;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index b8279deb614d..7b445df6a667 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1250,7 +1250,8 @@ err_reg:
 
 err_counter:
         for (; i; --i)
-                mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
+                if (ibdev->counters[i - 1] != -1)
+                        mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
 
 err_map:
         iounmap(ibdev->uar_map);
@@ -1281,7 +1282,8 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
         }
         iounmap(ibdev->uar_map);
         for (p = 0; p < ibdev->num_ports; ++p)
-                mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
+                if (ibdev->counters[p] != -1)
+                        mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
         mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
                 mlx4_CLOSE_PORT(dev, p);
 
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 574600ef5b42..a7403248d83d 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -1285,7 +1285,7 @@ static int setup_ctxt(struct qib_pportdata *ppd, int ctxt,
         strlcpy(rcd->comm, current->comm, sizeof(rcd->comm));
         ctxt_fp(fp) = rcd;
         qib_stats.sps_ctxts++;
-        dd->freectxts++;
+        dd->freectxts--;
         ret = 0;
         goto bail;
 
@@ -1794,7 +1794,7 @@ static int qib_close(struct inode *in, struct file *fp)
                 if (dd->pageshadow)
                         unlock_expected_tids(rcd);
                 qib_stats.sps_ctxts--;
-                dd->freectxts--;
+                dd->freectxts++;
         }
 
         mutex_unlock(&qib_mutex);
diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c
index 80793f1608eb..06517e60e50c 100644
--- a/drivers/input/misc/cma3000_d0x.c
+++ b/drivers/input/misc/cma3000_d0x.c
@@ -115,8 +115,8 @@ static void decode_mg(struct cma3000_accl_data *data, int *datax,
 static irqreturn_t cma3000_thread_irq(int irq, void *dev_id)
 {
         struct cma3000_accl_data *data = dev_id;
-        int datax, datay, dataz;
-        u8 ctrl, mode, range, intr_status;
+        int datax, datay, dataz, intr_status;
+        u8 ctrl, mode, range;
 
         intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status");
         if (intr_status < 0)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index c080b828e5dc..a6dcd18e9adf 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -24,6 +24,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/dmi.h>
 #include <linux/input/mt.h>
 #include <linux/serio.h>
@@ -1220,6 +1221,16 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 
         do {
                 psmouse_reset(psmouse);
+                if (retry) {
+                        /*
+                         * On some boxes, right after resuming, the touchpad
+                         * needs some time to finish initializing (I assume
+                         * it needs time to calibrate) and start responding
+                         * to Synaptics-specific queries, so let's wait a
+                         * bit.
+                         */
+                        ssleep(1);
+                }
                 error = synaptics_detect(psmouse, 0);
         } while (error && ++retry < 3);
 
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index da0d8761e778..2ee47d01a3b4 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1470,6 +1470,9 @@ static const struct wacom_features wacom_features_0xE3 =
 static const struct wacom_features wacom_features_0xE6 =
         { "Wacom ISDv4 E6",       WACOM_PKGLEN_TPC2FG,    27760, 15694,  255,
           0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xEC =
+        { "Wacom ISDv4 EC",       WACOM_PKGLEN_GRAPHIRE,  25710, 14500,  255,
+          0, TABLETPC,    WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x47 =
         { "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
           31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1611,6 +1614,7 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_WACOM(0xE2) },
         { USB_DEVICE_WACOM(0xE3) },
         { USB_DEVICE_WACOM(0xE6) },
+        { USB_DEVICE_WACOM(0xEC) },
         { USB_DEVICE_WACOM(0x47) },
         { USB_DEVICE_LENOVO(0x6004) },
         { }
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index a004c3945c67..bdc447fd4766 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -405,6 +405,9 @@ int dmar_disabled = 0;
 int dmar_disabled = 1;
 #endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/
 
+int intel_iommu_enabled = 0;
+EXPORT_SYMBOL_GPL(intel_iommu_enabled);
+
 static int dmar_map_gfx = 1;
 static int dmar_forcedac;
 static int intel_iommu_strict;
@@ -3647,6 +3650,8 @@ int __init intel_iommu_init(void)
 
         bus_register_notifier(&pci_bus_type, &device_nb);
 
+        intel_iommu_enabled = 1;
+
         return 0;
 }
 
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7878712721bf..b6907118283a 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1106,10 +1106,12 @@ void bitmap_write_all(struct bitmap *bitmap)
          */
         int i;
 
+        spin_lock_irq(&bitmap->lock);
         for (i = 0; i < bitmap->file_pages; i++)
                 set_page_attr(bitmap, bitmap->filemap[i],
                               BITMAP_PAGE_NEEDWRITE);
         bitmap->allclean = 0;
+        spin_unlock_irq(&bitmap->lock);
 }
 
 static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc)
@@ -1605,7 +1607,9 @@ void bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long e)
         for (chunk = s; chunk <= e; chunk++) {
                 sector_t sec = (sector_t)chunk << CHUNK_BLOCK_SHIFT(bitmap);
                 bitmap_set_memory_bits(bitmap, sec, 1);
+                spin_lock_irq(&bitmap->lock);
                 bitmap_file_set_bit(bitmap, sec);
+                spin_unlock_irq(&bitmap->lock);
                 if (sec < bitmap->mddev->recovery_cp)
                         /* We are asserting that the array is dirty,
                          * so move the recovery_cp address back so
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 84acfe7d10e4..ee981737edfc 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -570,7 +570,7 @@ static void mddev_put(struct mddev *mddev)
             mddev->ctime == 0 && !mddev->hold_active) {
                 /* Array is not configured at all, and not held active,
                  * so destroy it */
-                list_del(&mddev->all_mddevs);
+                list_del_init(&mddev->all_mddevs);
                 bs = mddev->bio_set;
                 mddev->bio_set = NULL;
                 if (mddev->gendisk) {
@@ -2546,7 +2546,8 @@ state_show(struct md_rdev *rdev, char *page)
                 sep = ",";
         }
         if (test_bit(Blocked, &rdev->flags) ||
-            rdev->badblocks.unacked_exist) {
+            (rdev->badblocks.unacked_exist
+             && !test_bit(Faulty, &rdev->flags))) {
                 len += sprintf(page+len, "%sblocked", sep);
                 sep = ",";
         }
@@ -3788,6 +3789,8 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
         if (err)
                 return err;
         else {
+                if (mddev->hold_active == UNTIL_IOCTL)
+                        mddev->hold_active = 0;
                 sysfs_notify_dirent_safe(mddev->sysfs_state);
                 return len;
         }
@@ -4487,11 +4490,20 @@ md_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
 
         if (!entry->show)
                 return -EIO;
+        spin_lock(&all_mddevs_lock);
+        if (list_empty(&mddev->all_mddevs)) {
+                spin_unlock(&all_mddevs_lock);
+                return -EBUSY;
+        }
+        mddev_get(mddev);
+        spin_unlock(&all_mddevs_lock);
+
         rv = mddev_lock(mddev);
         if (!rv) {
                 rv = entry->show(mddev, page);
                 mddev_unlock(mddev);
         }
+        mddev_put(mddev);
         return rv;
 }
 
@@ -4507,13 +4519,19 @@ md_attr_store(struct kobject *kobj, struct attribute *attr,
                 return -EIO;
         if (!capable(CAP_SYS_ADMIN))
                 return -EACCES;
+        spin_lock(&all_mddevs_lock);
+        if (list_empty(&mddev->all_mddevs)) {
+                spin_unlock(&all_mddevs_lock);
+                return -EBUSY;
+        }
+        mddev_get(mddev);
+        spin_unlock(&all_mddevs_lock);
         rv = mddev_lock(mddev);
-        if (mddev->hold_active == UNTIL_IOCTL)
-                mddev->hold_active = 0;
         if (!rv) {
                 rv = entry->store(mddev, page, length);
                 mddev_unlock(mddev);
         }
+        mddev_put(mddev);
         return rv;
 }
 
@@ -7840,6 +7858,7 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
                                   s + rdev->data_offset, sectors, acknowledged);
         if (rv) {
                 /* Make sure they get written out promptly */
+                sysfs_notify_dirent_safe(rdev->sysfs_state);
                 set_bit(MD_CHANGE_CLEAN, &rdev->mddev->flags);
                 md_wakeup_thread(rdev->mddev->thread);
         }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 297e26092178..31670f8d6b65 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3036,6 +3036,8 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
                 if (dev->written)
                         s->written++;
                 rdev = rcu_dereference(conf->disks[i].rdev);
+                if (rdev && test_bit(Faulty, &rdev->flags))
+                        rdev = NULL;
                 if (rdev) {
                         is_bad = is_badblock(rdev, sh->sector, STRIPE_SECTORS,
                                              &first_bad, &bad_sectors);
@@ -3063,12 +3065,12 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
                         }
                 } else if (test_bit(In_sync, &rdev->flags))
                         set_bit(R5_Insync, &dev->flags);
-                else if (!test_bit(Faulty, &rdev->flags)) {
+                else {
                         /* in sync if before recovery_offset */
                         if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset)
                                 set_bit(R5_Insync, &dev->flags);
                 }
-                if (test_bit(R5_WriteError, &dev->flags)) {
+                if (rdev && test_bit(R5_WriteError, &dev->flags)) {
                         clear_bit(R5_Insync, &dev->flags);
                         if (!test_bit(Faulty, &rdev->flags)) {
                                 s->handle_bad_blocks = 1;
@@ -3076,7 +3078,7 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
                         } else
                                 clear_bit(R5_WriteError, &dev->flags);
                 }
-                if (test_bit(R5_MadeGood, &dev->flags)) {
+                if (rdev && test_bit(R5_MadeGood, &dev->flags)) {
                         if (!test_bit(Faulty, &rdev->flags)) {
                                 s->handle_bad_blocks = 1;
                                 atomic_inc(&rdev->nr_pending);
diff --git a/drivers/media/common/tuners/mxl5007t.c b/drivers/media/common/tuners/mxl5007t.c
index 7eb1bf75cd07..5d02221e99dd 100644
--- a/drivers/media/common/tuners/mxl5007t.c
+++ b/drivers/media/common/tuners/mxl5007t.c
@@ -488,9 +488,10 @@ static int mxl5007t_write_regs(struct mxl5007t_state *state,
 
 static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val)
 {
+        u8 buf[2] = { 0xfb, reg };
         struct i2c_msg msg[] = {
                 { .addr = state->i2c_props.addr, .flags = 0,
-                  .buf = &reg, .len = 1 },
+                  .buf = buf, .len = 2 },
                 { .addr = state->i2c_props.addr, .flags = I2C_M_RD,
                   .buf = val, .len = 1 },
         };
diff --git a/drivers/media/common/tuners/tda18218.c b/drivers/media/common/tuners/tda18218.c
index aacfe2387e28..4fc29730a12c 100644
--- a/drivers/media/common/tuners/tda18218.c
+++ b/drivers/media/common/tuners/tda18218.c
@@ -141,7 +141,7 @@ static int tda18218_set_params(struct dvb_frontend *fe,
         switch (params->u.ofdm.bandwidth) {
         case BANDWIDTH_6_MHZ:
                 LP_Fc = 0;
-                LO_Frac = params->frequency + 4000000;
+                LO_Frac = params->frequency + 3000000;
                 break;
         case BANDWIDTH_7_MHZ:
                 LP_Fc = 1;
diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c
index 303f22ea04c0..01bb8daf4b09 100644
--- a/drivers/media/rc/ati_remote.c
+++ b/drivers/media/rc/ati_remote.c
@@ -189,7 +189,7 @@ struct ati_remote {
         dma_addr_t inbuf_dma;
         dma_addr_t outbuf_dma;
 
-        unsigned char old_data[2];  /* Detect duplicate events */
+        unsigned char old_data;     /* Detect duplicate events */
         unsigned long old_jiffies;
         unsigned long acc_jiffies;  /* handle acceleration */
         unsigned long first_jiffies;
@@ -221,35 +221,35 @@ struct ati_remote {
 /* Translation table from hardware messages to input events. */
 static const struct {
         short kind;
-        unsigned char data1, data2;
+        unsigned char data;
         int type;
         unsigned int code;
         int value;
 }  ati_remote_tbl[] = {
         /* Directional control pad axes */
-        {KIND_ACCEL,   0x35, 0x70, EV_REL, REL_X, -1},   /* left */
-        {KIND_ACCEL,   0x36, 0x71, EV_REL, REL_X, 1},    /* right */
-        {KIND_ACCEL,   0x37, 0x72, EV_REL, REL_Y, -1},   /* up */
-        {KIND_ACCEL,   0x38, 0x73, EV_REL, REL_Y, 1},    /* down */
+        {KIND_ACCEL,   0x70, EV_REL, REL_X, -1},   /* left */
+        {KIND_ACCEL,   0x71, EV_REL, REL_X, 1},    /* right */
+        {KIND_ACCEL,   0x72, EV_REL, REL_Y, -1},   /* up */
+        {KIND_ACCEL,   0x73, EV_REL, REL_Y, 1},    /* down */
         /* Directional control pad diagonals */
-        {KIND_LU,      0x39, 0x74, EV_REL, 0, 0},        /* left up */
-        {KIND_RU,      0x3a, 0x75, EV_REL, 0, 0},        /* right up */
-        {KIND_LD,      0x3c, 0x77, EV_REL, 0, 0},        /* left down */
-        {KIND_RD,      0x3b, 0x76, EV_REL, 0, 0},        /* right down */
+        {KIND_LU,      0x74, EV_REL, 0, 0},        /* left up */
+        {KIND_RU,      0x75, EV_REL, 0, 0},        /* right up */
+        {KIND_LD,      0x77, EV_REL, 0, 0},        /* left down */
+        {KIND_RD,      0x76, EV_REL, 0, 0},        /* right down */
 
         /* "Mouse button" buttons */
-        {KIND_LITERAL, 0x3d, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
-        {KIND_LITERAL, 0x3e, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
-        {KIND_LITERAL, 0x41, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
-        {KIND_LITERAL, 0x42, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */
+        {KIND_LITERAL, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
+        {KIND_LITERAL, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
+        {KIND_LITERAL, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
+        {KIND_LITERAL, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */
 
         /* Artificial "doubleclick" events are generated by the hardware.
          * They are mapped to the "side" and "extra" mouse buttons here. */
-        {KIND_FILTERED, 0x3f, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
-        {KIND_FILTERED, 0x43, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
+        {KIND_FILTERED, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
+        {KIND_FILTERED, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
 
         /* Non-mouse events are handled by rc-core */
-        {KIND_END, 0x00, 0x00, EV_MAX + 1, 0, 0}
+        {KIND_END, 0x00, EV_MAX + 1, 0, 0}
 };
 
 /* Local function prototypes */
@@ -397,25 +397,6 @@ static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd, unsigne
 }
 
 /*
- *      ati_remote_event_lookup
- */
-static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2)
-{
-        int i;
-
-        for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
-                /*
-                 * Decide if the table entry matches the remote input.
-                 */
-                if (ati_remote_tbl[i].data1 == d1 &&
-                    ati_remote_tbl[i].data2 == d2)
-                        return i;
-
-        }
-        return -1;
-}
-
-/*
  *      ati_remote_compute_accel
  *
  * Implements acceleration curve for directional control pad
@@ -463,7 +444,15 @@ static void ati_remote_input_report(struct urb *urb)
         int index = -1;
         int acc;
         int remote_num;
-        unsigned char scancode[2];
+        unsigned char scancode;
+        int i;
+
+        /*
+         * data[0] = 0x14
+         * data[1] = data[2] + data[3] + 0xd5 (a checksum byte)
+         * data[2] = the key code (with toggle bit in MSB with some models)
+         * data[3] = channel << 4 (the low 4 bits must be zero)
+         */
 
         /* Deal with strange looking inputs */
         if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
@@ -472,6 +461,13 @@ static void ati_remote_input_report(struct urb *urb)
                 return;
         }
 
+        if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) {
+                dbginfo(&ati_remote->interface->dev,
+                        "wrong checksum in input: %02x %02x %02x %02x\n",
+                        data[0], data[1], data[2], data[3]);
+                return;
+        }
+
         /* Mask unwanted remote channels.  */
         /* note: remote_num is 0-based, channel 1 on remote == 0 here */
         remote_num = (data[3] >> 4) & 0x0f;
@@ -482,31 +478,30 @@ static void ati_remote_input_report(struct urb *urb)
                 return;
         }
 
-        scancode[0] = (((data[1] - ((remote_num + 1) << 4)) & 0xf0) | (data[1] & 0x0f));
-
         /*
-         * Some devices (e.g. SnapStream Firefly) use 8080 as toggle code,
-         * so we have to clear them. The first bit is a bit tricky as the
-         * "non-toggled" state depends on remote_num, so we xor it with the
-         * second bit which is only used for toggle.
+         * MSB is a toggle code, though only used by some devices
+         * (e.g. SnapStream Firefly)
          */
-        scancode[0] ^= (data[2] & 0x80);
-
-        scancode[1] = data[2] & ~0x80;
+        scancode = data[2] & 0x7f;
 
-        /* Look up event code index in mouse translation table. */
-        index = ati_remote_event_lookup(remote_num, scancode[0], scancode[1]);
+        /* Look up event code index in the mouse translation table. */
+        for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
+                if (scancode == ati_remote_tbl[i].data) {
+                        index = i;
+                        break;
+                }
+        }
 
         if (index >= 0) {
                 dbginfo(&ati_remote->interface->dev,
-                        "channel 0x%02x; mouse data %02x,%02x; index %d; keycode %d\n",
-                        remote_num, data[1], data[2], index, ati_remote_tbl[index].code);
+                        "channel 0x%02x; mouse data %02x; index %d; keycode %d\n",
+                        remote_num, data[2], index, ati_remote_tbl[index].code);
                 if (!dev)
                         return; /* no mouse device */
         } else
                 dbginfo(&ati_remote->interface->dev,
-                        "channel 0x%02x; key data %02x,%02x, scancode %02x,%02x\n",
-                        remote_num, data[1], data[2], scancode[0], scancode[1]);
+                        "channel 0x%02x; key data %02x, scancode %02x\n",
+                        remote_num, data[2], scancode);
 
 
         if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) {
@@ -523,8 +518,7 @@ static void ati_remote_input_report(struct urb *urb)
                 unsigned long now = jiffies;
 
                 /* Filter duplicate events which happen "too close" together. */
-                if (ati_remote->old_data[0] == data[1] &&
-                    ati_remote->old_data[1] == data[2] &&
+                if (ati_remote->old_data == data[2] &&
                     time_before(now, ati_remote->old_jiffies +
                                      msecs_to_jiffies(repeat_filter))) {
                         ati_remote->repeat_count++;
@@ -533,8 +527,7 @@ static void ati_remote_input_report(struct urb *urb)
                         ati_remote->first_jiffies = now;
                 }
 
-                ati_remote->old_data[0] = data[1];
-                ati_remote->old_data[1] = data[2];
+                ati_remote->old_data = data[2];
                 ati_remote->old_jiffies = now;
 
                 /* Ensure we skip at least the 4 first duplicate events (generated
@@ -549,14 +542,13 @@ static void ati_remote_input_report(struct urb *urb)
 
                 if (index < 0) {
                         /* Not a mouse event, hand it to rc-core. */
-                        u32 rc_code = (scancode[0] << 8) | scancode[1];
 
                         /*
                          * We don't use the rc-core repeat handling yet as
                          * it would cause ghost repeats which would be a
                          * regression for this driver.
                          */
-                        rc_keydown_notimeout(ati_remote->rdev, rc_code,
+                        rc_keydown_notimeout(ati_remote->rdev, scancode,
                                              data[2]);
                         rc_keyup(ati_remote->rdev);
                         return;
@@ -607,8 +599,7 @@ static void ati_remote_input_report(struct urb *urb)
                 input_sync(dev);
 
                 ati_remote->old_jiffies = jiffies;
-                ati_remote->old_data[0] = data[1];
-                ati_remote->old_data[1] = data[2];
+                ati_remote->old_data = data[2];
         }
 }
 
diff --git a/drivers/media/rc/keymaps/rc-ati-x10.c b/drivers/media/rc/keymaps/rc-ati-x10.c
index e1b8b2605c48..81506440eded 100644
--- a/drivers/media/rc/keymaps/rc-ati-x10.c
+++ b/drivers/media/rc/keymaps/rc-ati-x10.c
@@ -27,55 +27,55 @@
 #include <media/rc-map.h>
 
 static struct rc_map_table ati_x10[] = {
-        { 0xd20d, KEY_1 },
-        { 0xd30e, KEY_2 },
-        { 0xd40f, KEY_3 },
-        { 0xd510, KEY_4 },
-        { 0xd611, KEY_5 },
-        { 0xd712, KEY_6 },
-        { 0xd813, KEY_7 },
-        { 0xd914, KEY_8 },
-        { 0xda15, KEY_9 },
-        { 0xdc17, KEY_0 },
-        { 0xc500, KEY_A },
-        { 0xc601, KEY_B },
-        { 0xde19, KEY_C },
-        { 0xe01b, KEY_D },
-        { 0xe621, KEY_E },
-        { 0xe823, KEY_F },
+        { 0x0d, KEY_1 },
+        { 0x0e, KEY_2 },
+        { 0x0f, KEY_3 },
+        { 0x10, KEY_4 },
+        { 0x11, KEY_5 },
+        { 0x12, KEY_6 },
+        { 0x13, KEY_7 },
+        { 0x14, KEY_8 },
+        { 0x15, KEY_9 },
+        { 0x17, KEY_0 },
+        { 0x00, KEY_A },
+        { 0x01, KEY_B },
+        { 0x19, KEY_C },
+        { 0x1b, KEY_D },
+        { 0x21, KEY_E },
+        { 0x23, KEY_F },
 
-        { 0xdd18, KEY_KPENTER },    /* "check" */
-        { 0xdb16, KEY_MENU },       /* "menu" */
-        { 0xc702, KEY_POWER },      /* Power */
-        { 0xc803, KEY_TV },         /* TV */
-        { 0xc904, KEY_DVD },        /* DVD */
-        { 0xca05, KEY_WWW },        /* WEB */
-        { 0xcb06, KEY_BOOKMARKS },  /* "book" */
-        { 0xcc07, KEY_EDIT },       /* "hand" */
-        { 0xe11c, KEY_COFFEE },     /* "timer" */
-        { 0xe520, KEY_FRONT },      /* "max" */
-        { 0xe21d, KEY_LEFT },       /* left */
-        { 0xe41f, KEY_RIGHT },      /* right */
-        { 0xe722, KEY_DOWN },       /* down */
-        { 0xdf1a, KEY_UP },         /* up */
-        { 0xe31e, KEY_OK },         /* "OK" */
-        { 0xce09, KEY_VOLUMEDOWN }, /* VOL + */
-        { 0xcd08, KEY_VOLUMEUP },   /* VOL - */
-        { 0xcf0a, KEY_MUTE },       /* MUTE  */
-        { 0xd00b, KEY_CHANNELUP },  /* CH + */
-        { 0xd10c, KEY_CHANNELDOWN },/* CH - */
-        { 0xec27, KEY_RECORD },     /* ( o) red */
-        { 0xea25, KEY_PLAY },       /* ( >) */
-        { 0xe924, KEY_REWIND },     /* (<<) */
-        { 0xeb26, KEY_FORWARD },    /* (>>) */
-        { 0xed28, KEY_STOP },       /* ([]) */
-        { 0xee29, KEY_PAUSE },      /* ('') */
-        { 0xf02b, KEY_PREVIOUS },   /* (<-) */
-        { 0xef2a, KEY_NEXT },       /* (>+) */
-        { 0xf22d, KEY_INFO },       /* PLAYING */
-        { 0xf32e, KEY_HOME },       /* TOP */
-        { 0xf42f, KEY_END },        /* END */
-        { 0xf530, KEY_SELECT },     /* SELECT */
+        { 0x18, KEY_KPENTER },    /* "check" */
+        { 0x16, KEY_MENU },       /* "menu" */
+        { 0x02, KEY_POWER },      /* Power */
+        { 0x03, KEY_TV },         /* TV */
+        { 0x04, KEY_DVD },        /* DVD */
+        { 0x05, KEY_WWW },        /* WEB */
+        { 0x06, KEY_BOOKMARKS },  /* "book" */
+        { 0x07, KEY_EDIT },       /* "hand" */
+        { 0x1c, KEY_COFFEE },     /* "timer" */
+        { 0x20, KEY_FRONT },      /* "max" */
+        { 0x1d, KEY_LEFT },       /* left */
+        { 0x1f, KEY_RIGHT },      /* right */
+        { 0x22, KEY_DOWN },       /* down */
+        { 0x1a, KEY_UP },         /* up */
+        { 0x1e, KEY_OK },         /* "OK" */
+        { 0x09, KEY_VOLUMEDOWN }, /* VOL + */
+        { 0x08, KEY_VOLUMEUP },   /* VOL - */
+        { 0x0a, KEY_MUTE },       /* MUTE  */
+        { 0x0b, KEY_CHANNELUP },  /* CH + */
+        { 0x0c, KEY_CHANNELDOWN },/* CH - */
+        { 0x27, KEY_RECORD },     /* ( o) red */
+        { 0x25, KEY_PLAY },       /* ( >) */
+        { 0x24, KEY_REWIND },     /* (<<) */
+        { 0x26, KEY_FORWARD },    /* (>>) */
+        { 0x28, KEY_STOP },       /* ([]) */
+        { 0x29, KEY_PAUSE },      /* ('') */
+        { 0x2b, KEY_PREVIOUS },   /* (<-) */
+        { 0x2a, KEY_NEXT },       /* (>+) */
+        { 0x2d, KEY_INFO },       /* PLAYING */
+        { 0x2e, KEY_HOME },       /* TOP */
+        { 0x2f, KEY_END },        /* END */
+        { 0x30, KEY_SELECT },     /* SELECT */
 };
 
 static struct rc_map_list ati_x10_map = {
diff --git a/drivers/media/rc/keymaps/rc-medion-x10.c b/drivers/media/rc/keymaps/rc-medion-x10.c
index 09e2cc01d110..479cdb897810 100644
--- a/drivers/media/rc/keymaps/rc-medion-x10.c
+++ b/drivers/media/rc/keymaps/rc-medion-x10.c
@@ -25,70 +25,70 @@
 #include <media/rc-map.h>
 
 static struct rc_map_table medion_x10[] = {
-        { 0xf12c, KEY_TV },    /* TV */
-        { 0xf22d, KEY_VCR },   /* VCR */
-        { 0xc904, KEY_DVD },   /* DVD */
-        { 0xcb06, KEY_AUDIO }, /* MUSIC */
-
-        { 0xf32e, KEY_RADIO },     /* RADIO */
-        { 0xca05, KEY_DIRECTORY }, /* PHOTO */
-        { 0xf42f, KEY_INFO },      /* TV-PREVIEW */
-        { 0xf530, KEY_LIST },      /* CHANNEL-LST */
-
-        { 0xe01b, KEY_SETUP }, /* SETUP */
-        { 0xf631, KEY_VIDEO }, /* VIDEO DESKTOP */
-
-        { 0xcd08, KEY_VOLUMEDOWN },  /* VOL - */
-        { 0xce09, KEY_VOLUMEUP },    /* VOL + */
-        { 0xd00b, KEY_CHANNELUP },   /* CHAN + */
-        { 0xd10c, KEY_CHANNELDOWN }, /* CHAN - */
-        { 0xc500, KEY_MUTE },        /* MUTE */
-
-        { 0xf732, KEY_RED }, /* red */
-        { 0xf833, KEY_GREEN }, /* green */
-        { 0xf934, KEY_YELLOW }, /* yellow */
-        { 0xfa35, KEY_BLUE }, /* blue */
-        { 0xdb16, KEY_TEXT }, /* TXT */
-
-        { 0xd20d, KEY_1 },
-        { 0xd30e, KEY_2 },
-        { 0xd40f, KEY_3 },
-        { 0xd510, KEY_4 },
-        { 0xd611, KEY_5 },
-        { 0xd712, KEY_6 },
-        { 0xd813, KEY_7 },
-        { 0xd914, KEY_8 },
-        { 0xda15, KEY_9 },
-        { 0xdc17, KEY_0 },
-        { 0xe11c, KEY_SEARCH }, /* TV/RAD, CH SRC */
-        { 0xe520, KEY_DELETE }, /* DELETE */
-
-        { 0xfb36, KEY_KEYBOARD }, /* RENAME */
-        { 0xdd18, KEY_SCREEN },   /* SNAPSHOT */
-
-        { 0xdf1a, KEY_UP },    /* up */
-        { 0xe722, KEY_DOWN },  /* down */
-        { 0xe21d, KEY_LEFT },  /* left */
-        { 0xe41f, KEY_RIGHT }, /* right */
-        { 0xe31e, KEY_OK },    /* OK */
-
-        { 0xfc37, KEY_SELECT }, /* ACQUIRE IMAGE */
-        { 0xfd38, KEY_EDIT },   /* EDIT IMAGE */
-
-        { 0xe924, KEY_REWIND },   /* rewind  (<<) */
-        { 0xea25, KEY_PLAY },     /* play    ( >) */
-        { 0xeb26, KEY_FORWARD },  /* forward (>>) */
-        { 0xec27, KEY_RECORD },   /* record  ( o) */
-        { 0xed28, KEY_STOP },     /* stop    ([]) */
-        { 0xee29, KEY_PAUSE },    /* pause   ('') */
-
-        { 0xe621, KEY_PREVIOUS },        /* prev */
-        { 0xfe39, KEY_SWITCHVIDEOMODE }, /* F SCR */
-        { 0xe823, KEY_NEXT },            /* next */
-        { 0xde19, KEY_MENU },            /* MENU */
-        { 0xff3a, KEY_LANGUAGE },        /* AUDIO */
-
-        { 0xc702, KEY_POWER }, /* POWER */
+        { 0x2c, KEY_TV },    /* TV */
+        { 0x2d, KEY_VCR },   /* VCR */
+        { 0x04, KEY_DVD },   /* DVD */
+        { 0x06, KEY_AUDIO }, /* MUSIC */
+
+        { 0x2e, KEY_RADIO },     /* RADIO */
+        { 0x05, KEY_DIRECTORY }, /* PHOTO */
+        { 0x2f, KEY_INFO },      /* TV-PREVIEW */
+        { 0x30, KEY_LIST },      /* CHANNEL-LST */
+
+        { 0x1b, KEY_SETUP }, /* SETUP */
+        { 0x31, KEY_VIDEO }, /* VIDEO DESKTOP */
+
+        { 0x08, KEY_VOLUMEDOWN },  /* VOL - */
+        { 0x09, KEY_VOLUMEUP },    /* VOL + */
+        { 0x0b, KEY_CHANNELUP },   /* CHAN + */
+        { 0x0c, KEY_CHANNELDOWN }, /* CHAN - */
+        { 0x00, KEY_MUTE },        /* MUTE */
+
+        { 0x32, KEY_RED }, /* red */
+        { 0x33, KEY_GREEN }, /* green */
+        { 0x34, KEY_YELLOW }, /* yellow */
+        { 0x35, KEY_BLUE }, /* blue */
+        { 0x16, KEY_TEXT }, /* TXT */
+
+        { 0x0d, KEY_1 },
+        { 0x0e, KEY_2 },
+        { 0x0f, KEY_3 },
+        { 0x10, KEY_4 },
+        { 0x11, KEY_5 },
+        { 0x12, KEY_6 },
+        { 0x13, KEY_7 },
+        { 0x14, KEY_8 },
+        { 0x15, KEY_9 },
+        { 0x17, KEY_0 },
+        { 0x1c, KEY_SEARCH }, /* TV/RAD, CH SRC */
+        { 0x20, KEY_DELETE }, /* DELETE */
+
+        { 0x36, KEY_KEYBOARD }, /* RENAME */
+        { 0x18, KEY_SCREEN },   /* SNAPSHOT */
+
+        { 0x1a, KEY_UP },    /* up */
+        { 0x22, KEY_DOWN },  /* down */
+        { 0x1d, KEY_LEFT },  /* left */
+        { 0x1f, KEY_RIGHT }, /* right */
+        { 0x1e, KEY_OK },    /* OK */
+
+        { 0x37, KEY_SELECT }, /* ACQUIRE IMAGE */
+        { 0x38, KEY_EDIT },   /* EDIT IMAGE */
+
+        { 0x24, KEY_REWIND },   /* rewind  (<<) */
+        { 0x25, KEY_PLAY },     /* play    ( >) */
+        { 0x26, KEY_FORWARD },  /* forward (>>) */
+        { 0x27, KEY_RECORD },   /* record  ( o) */
+        { 0x28, KEY_STOP },     /* stop    ([]) */
+        { 0x29, KEY_PAUSE },    /* pause   ('') */
+
+        { 0x21, KEY_PREVIOUS },        /* prev */
+        { 0x39, KEY_SWITCHVIDEOMODE }, /* F SCR */
+        { 0x23, KEY_NEXT },            /* next */
+        { 0x19, KEY_MENU },            /* MENU */
+        { 0x3a, KEY_LANGUAGE },        /* AUDIO */
+
+        { 0x02, KEY_POWER }, /* POWER */
 };
 
 static struct rc_map_list medion_x10_map = {
diff --git a/drivers/media/rc/keymaps/rc-snapstream-firefly.c b/drivers/media/rc/keymaps/rc-snapstream-firefly.c
index ef146520931c..c7f33ec719b4 100644
--- a/drivers/media/rc/keymaps/rc-snapstream-firefly.c
+++ b/drivers/media/rc/keymaps/rc-snapstream-firefly.c
@@ -22,63 +22,63 @@
 #include <media/rc-map.h>
 
 static struct rc_map_table snapstream_firefly[] = {
-        { 0xf12c, KEY_ZOOM },       /* Maximize */
-        { 0xc702, KEY_CLOSE },
-
-        { 0xd20d, KEY_1 },
-        { 0xd30e, KEY_2 },
-        { 0xd40f, KEY_3 },
-        { 0xd510, KEY_4 },
-        { 0xd611, KEY_5 },
-        { 0xd712, KEY_6 },
-        { 0xd813, KEY_7 },
-        { 0xd914, KEY_8 },
-        { 0xda15, KEY_9 },
-        { 0xdc17, KEY_0 },
-        { 0xdb16, KEY_BACK },
-        { 0xdd18, KEY_KPENTER },    /* ent */
-
-        { 0xce09, KEY_VOLUMEUP },
-        { 0xcd08, KEY_VOLUMEDOWN },
-        { 0xcf0a, KEY_MUTE },
-        { 0xd00b, KEY_CHANNELUP },
-        { 0xd10c, KEY_CHANNELDOWN },
-        { 0xc500, KEY_VENDOR },     /* firefly */
-
-        { 0xf32e, KEY_INFO },
-        { 0xf42f, KEY_OPTION },
-
-        { 0xe21d, KEY_LEFT },
-        { 0xe41f, KEY_RIGHT },
-        { 0xe722, KEY_DOWN },
-        { 0xdf1a, KEY_UP },
-        { 0xe31e, KEY_OK },
-
-        { 0xe11c, KEY_MENU },
-        { 0xe520, KEY_EXIT },
-
-        { 0xec27, KEY_RECORD },
-        { 0xea25, KEY_PLAY },
-        { 0xed28, KEY_STOP },
-        { 0xe924, KEY_REWIND },
-        { 0xeb26, KEY_FORWARD },
-        { 0xee29, KEY_PAUSE },
-        { 0xf02b, KEY_PREVIOUS },
-        { 0xef2a, KEY_NEXT },
-
-        { 0xcb06, KEY_AUDIO },      /* Music */
-        { 0xca05, KEY_IMAGES },     /* Photos */
-        { 0xc904, KEY_DVD },
-        { 0xc803, KEY_TV },
-        { 0xcc07, KEY_VIDEO },
-
-        { 0xc601, KEY_HELP },
-        { 0xf22d, KEY_MODE },       /* Mouse */
-
-        { 0xde19, KEY_A },
-        { 0xe01b, KEY_B },
-        { 0xe621, KEY_C },
-        { 0xe823, KEY_D },
+        { 0x2c, KEY_ZOOM },       /* Maximize */
+        { 0x02, KEY_CLOSE },
+
+        { 0x0d, KEY_1 },
+        { 0x0e, KEY_2 },
+        { 0x0f, KEY_3 },
+        { 0x10, KEY_4 },
+        { 0x11, KEY_5 },
+        { 0x12, KEY_6 },
+        { 0x13, KEY_7 },
+        { 0x14, KEY_8 },
+        { 0x15, KEY_9 },
+        { 0x17, KEY_0 },
+        { 0x16, KEY_BACK },
+        { 0x18, KEY_KPENTER },    /* ent */
+
+        { 0x09, KEY_VOLUMEUP },
+        { 0x08, KEY_VOLUMEDOWN },
+        { 0x0a, KEY_MUTE },
+        { 0x0b, KEY_CHANNELUP },
+        { 0x0c, KEY_CHANNELDOWN },
+        { 0x00, KEY_VENDOR },     /* firefly */
+
+        { 0x2e, KEY_INFO },
+        { 0x2f, KEY_OPTION },
+
+        { 0x1d, KEY_LEFT },
+        { 0x1f, KEY_RIGHT },
+        { 0x22, KEY_DOWN },
+        { 0x1a, KEY_UP },
+        { 0x1e, KEY_OK },
+
+        { 0x1c, KEY_MENU },
+        { 0x20, KEY_EXIT },
+
+        { 0x27, KEY_RECORD },
+        { 0x25, KEY_PLAY },
+        { 0x28, KEY_STOP },
+        { 0x24, KEY_REWIND },
+        { 0x26, KEY_FORWARD },
+        { 0x29, KEY_PAUSE },
+        { 0x2b, KEY_PREVIOUS },
+        { 0x2a, KEY_NEXT },
+
+        { 0x06, KEY_AUDIO },      /* Music */
+        { 0x05, KEY_IMAGES },     /* Photos */
+        { 0x04, KEY_DVD },
+        { 0x03, KEY_TV },
+        { 0x07, KEY_VIDEO },
+
+        { 0x01, KEY_HELP },
+        { 0x2d, KEY_MODE },       /* Mouse */
+
+        { 0x19, KEY_A },
+        { 0x1b, KEY_B },
+        { 0x21, KEY_C },
+        { 0x23, KEY_D },
 };
 
 static struct rc_map_list snapstream_firefly_map = {
diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c
index 39fc923fc46b..1c6015a04f96 100644
--- a/drivers/media/video/au0828/au0828-cards.c
+++ b/drivers/media/video/au0828/au0828-cards.c
@@ -162,11 +162,14 @@ static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data)
         switch (tv.model) {
         case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */
         case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+        case 72101: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+        case 72201: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
         case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
         case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
         case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
         case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
         case 72251: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+        case 72261: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
         case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and analog video */
         case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */
                 break;
@@ -324,6 +327,10 @@ struct usb_device_id au0828_usb_id_table[] = {
                 .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
         { USB_DEVICE(0x2040, 0x8200),
                 .driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
+        { USB_DEVICE(0x2040, 0x7260),
+                .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+        { USB_DEVICE(0x2040, 0x7213),
+                .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
         { },
 };
 
diff --git a/drivers/media/video/m5mols/m5mols.h b/drivers/media/video/m5mols/m5mols.h
index 89d09a8914f8..82c8817bd32d 100644
--- a/drivers/media/video/m5mols/m5mols.h
+++ b/drivers/media/video/m5mols/m5mols.h
@@ -162,7 +162,6 @@ struct m5mols_version {
  * @pad: media pad
  * @ffmt: current fmt according to resolution type
  * @res_type: current resolution type
- * @code: current code
  * @irq_waitq: waitqueue for the capture
  * @work_irq: workqueue for the IRQ
  * @flags: state variable for the interrupt handler
@@ -192,7 +191,6 @@ struct m5mols_info {
         struct media_pad pad;
         struct v4l2_mbus_framefmt ffmt[M5MOLS_RESTYPE_MAX];
         int res_type;
-        enum v4l2_mbus_pixelcode code;
         wait_queue_head_t irq_waitq;
         struct work_struct work_irq;
         unsigned long flags;
diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c
index 05ab3700647e..e0f09e531800 100644
--- a/drivers/media/video/m5mols/m5mols_core.c
+++ b/drivers/media/video/m5mols/m5mols_core.c
@@ -334,7 +334,7 @@ int m5mols_mode(struct m5mols_info *info, u8 mode)
         int ret = -EINVAL;
         u8 reg;
 
-        if (mode < REG_PARAMETER && mode > REG_CAPTURE)
+        if (mode < REG_PARAMETER || mode > REG_CAPTURE)
                 return ret;
 
         ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, &reg);
@@ -511,9 +511,6 @@ static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
         struct m5mols_info *info = to_m5mols(sd);
         struct v4l2_mbus_framefmt *format;
 
-        if (fmt->pad != 0)
-                return -EINVAL;
-
         format = __find_format(info, fh, fmt->which, info->res_type);
         if (!format)
                 return -EINVAL;
@@ -532,9 +529,6 @@ static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
         u32 resolution = 0;
         int ret;
 
-        if (fmt->pad != 0)
-                return -EINVAL;
-
         ret = __find_resolution(sd, format, &type, &resolution);
         if (ret < 0)
                 return ret;
@@ -543,13 +537,14 @@ static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
         if (!sfmt)
                 return 0;
 
-        *sfmt           = m5mols_default_ffmt[type];
-        sfmt->width     = format->width;
-        sfmt->height    = format->height;
+
+        format->code = m5mols_default_ffmt[type].code;
+        format->colorspace = V4L2_COLORSPACE_JPEG;
+        format->field = V4L2_FIELD_NONE;
 
         if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+                *sfmt = *format;
                 info->resolution = resolution;
-                info->code = format->code;
                 info->res_type = type;
         }
 
@@ -626,13 +621,14 @@ static int m5mols_start_monitor(struct m5mols_info *info)
 static int m5mols_s_stream(struct v4l2_subdev *sd, int enable)
 {
         struct m5mols_info *info = to_m5mols(sd);
+        u32 code = info->ffmt[info->res_type].code;
 
         if (enable) {
                 int ret = -EINVAL;
 
-                if (is_code(info->code, M5MOLS_RESTYPE_MONITOR))
+                if (is_code(code, M5MOLS_RESTYPE_MONITOR))
                         ret = m5mols_start_monitor(info);
-                if (is_code(info->code, M5MOLS_RESTYPE_CAPTURE))
+                if (is_code(code, M5MOLS_RESTYPE_CAPTURE))
                         ret = m5mols_start_capture(info);
 
                 return ret;
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index cf2c0fb95f2f..398f96ffd35e 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -955,6 +955,7 @@ static int mt9m111_probe(struct i2c_client *client,
         mt9m111->rect.height    = MT9M111_MAX_HEIGHT;
         mt9m111->fmt            = &mt9m111_colour_fmts[0];
         mt9m111->lastpage       = -1;
+        mutex_init(&mt9m111->power_lock);
 
         ret = mt9m111_video_probe(client);
         if (ret) {
diff --git a/drivers/media/video/mt9t112.c b/drivers/media/video/mt9t112.c
index 32114a3c0ca7..7b34b11daf24 100644
--- a/drivers/media/video/mt9t112.c
+++ b/drivers/media/video/mt9t112.c
@@ -1083,8 +1083,10 @@ static int mt9t112_probe(struct i2c_client *client,
         v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops);
 
         ret = mt9t112_camera_probe(client);
-        if (ret)
+        if (ret) {
                 kfree(priv);
+                return ret;
+        }
 
         /* Cannot fail: using the default supported pixel code */
         mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8);
diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 9c5c19f142de..ee0d0b39cd17 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -38,6 +38,7 @@
 #include <linux/irq.h>
 #include <linux/videodev2.h>
 #include <linux/dma-mapping.h>
+#include <linux/slab.h>
 
 #include <media/videobuf-dma-contig.h>
 #include <media/v4l2-device.h>
@@ -2169,6 +2170,14 @@ static int __init omap_vout_probe(struct platform_device *pdev)
         vid_dev->num_displays = 0;
         for_each_dss_dev(dssdev) {
                 omap_dss_get_device(dssdev);
+
+                if (!dssdev->driver) {
+                        dev_warn(&pdev->dev, "no driver for display: %s\n",
+                                        dssdev->name);
+                        omap_dss_put_device(dssdev);
+                        continue;
+                }
+
                 vid_dev->displays[vid_dev->num_displays++] = dssdev;
         }
 
diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c
index e87ae2f634b2..6a6cf388bae4 100644
--- a/drivers/media/video/omap1_camera.c
+++ b/drivers/media/video/omap1_camera.c
@@ -24,6 +24,7 @@
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
diff --git a/drivers/media/video/omap24xxcam-dma.c b/drivers/media/video/omap24xxcam-dma.c
index 1d54b86c936b..3ea38a8def8e 100644
--- a/drivers/media/video/omap24xxcam-dma.c
+++ b/drivers/media/video/omap24xxcam-dma.c
@@ -506,7 +506,7 @@ int omap24xxcam_sgdma_queue(struct omap24xxcam_sgdma *sgdma,
         unsigned long flags;
         struct sgdma_state *sg_state;
 
-        if ((sglen < 0) || ((sglen > 0) & !sglist))
+        if ((sglen < 0) || ((sglen > 0) && !sglist))
                 return -EINVAL;
 
         spin_lock_irqsave(&sgdma->lock, flags);
diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c
index d1000723c5ae..f2290578448c 100644
--- a/drivers/media/video/omap3isp/ispvideo.c
+++ b/drivers/media/video/omap3isp/ispvideo.c
@@ -26,6 +26,7 @@
 #include <asm/cacheflush.h>
 #include <linux/clk.h>
 #include <linux/mm.h>
+#include <linux/module.h>
 #include <linux/pagemap.h>
 #include <linux/scatterlist.h>
 #include <linux/sched.h>
diff --git a/drivers/media/video/ov6650.c b/drivers/media/video/ov6650.c
index 9f2d26b1d4cb..6806345ec2f0 100644
--- a/drivers/media/video/ov6650.c
+++ b/drivers/media/video/ov6650.c
@@ -540,7 +540,7 @@ static u8 to_clkrc(struct v4l2_fract *timeperframe,
 static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
 {
         struct i2c_client *client = v4l2_get_subdevdata(sd);
-        struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id;
+        struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
         struct soc_camera_sense *sense = icd->sense;
         struct ov6650 *priv = to_ov6650(client);
         bool half_scale = !is_unscaled_ok(mf->width, mf->height, &priv->rect);
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index c8d91b0cd9bd..2cc3b9166724 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -98,6 +98,10 @@ static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
                         vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
         }
         set_bit(ST_CAPT_SUSPENDED, &fimc->state);
+
+        fimc_hw_reset(fimc);
+        cap->buf_index = 0;
+
         spin_unlock_irqrestore(&fimc->slock, flags);
 
         if (streaming)
@@ -137,7 +141,7 @@ int fimc_capture_config_update(struct fimc_ctx *ctx)
         struct fimc_dev *fimc = ctx->fimc_dev;
         int ret;
 
-        if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
+        if (!test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
                 return 0;
 
         spin_lock(&ctx->slock);
@@ -150,7 +154,7 @@ int fimc_capture_config_update(struct fimc_ctx *ctx)
                 fimc_hw_set_rotation(ctx);
                 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
                 fimc_hw_set_out_dma(ctx);
-                set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+                clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
         }
         spin_unlock(&ctx->slock);
         return ret;
@@ -164,7 +168,6 @@ static int start_streaming(struct vb2_queue *q, unsigned int count)
         int min_bufs;
         int ret;
 
-        fimc_hw_reset(fimc);
         vid_cap->frame_count = 0;
 
         ret = fimc_init_capture(fimc);
@@ -523,7 +526,7 @@ static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
         max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
         min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize;
         min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize;
-        if (fimc->id == 1 && var->pix_hoff)
+        if (var->min_vsize_align == 1 && !rotation)
                 align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
 
         depth = fimc_get_format_depth(ffmt);
@@ -1239,6 +1242,7 @@ static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
 
         mutex_lock(&fimc->lock);
         set_frame_bounds(ff, mf->width, mf->height);
+        fimc->vid_cap.mf = *mf;
         ff->fmt = ffmt;
 
         /* Reset the crop rectangle if required. */
@@ -1375,7 +1379,7 @@ static void fimc_destroy_capture_subdev(struct fimc_dev *fimc)
         media_entity_cleanup(&sd->entity);
         v4l2_device_unregister_subdev(sd);
         kfree(sd);
-        sd = NULL;
+        fimc->vid_cap.subdev = NULL;
 }
 
 /* Set default format at the sensor and host interface */
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index 19ca6db38b2f..07c6254faee3 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -37,7 +37,7 @@ static char *fimc_clocks[MAX_FIMC_CLOCKS] = {
 static struct fimc_fmt fimc_formats[] = {
         {
                 .name           = "RGB565",
-                .fourcc         = V4L2_PIX_FMT_RGB565X,
+                .fourcc         = V4L2_PIX_FMT_RGB565,
                 .depth          = { 16 },
                 .color          = S5P_FIMC_RGB565,
                 .memplanes      = 1,
@@ -1038,12 +1038,11 @@ static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
                 mod_x = 6; /* 64 x 32 pixels tile */
                 mod_y = 5;
         } else {
-                if (fimc->id == 1 && variant->pix_hoff)
+                if (variant->min_vsize_align == 1)
                         mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
                 else
-                        mod_y = mod_x;
+                        mod_y = ffs(variant->min_vsize_align) - 1;
         }
-        dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_w);
 
         v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
                 &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
@@ -1226,10 +1225,10 @@ static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
                 fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
 
         /* Get pixel alignment constraints. */
-        if (fimc->id == 1 && fimc->variant->pix_hoff)
+        if (fimc->variant->min_vsize_align == 1)
                 halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
         else
-                halign = ffs(min_size) - 1;
+                halign = ffs(fimc->variant->min_vsize_align) - 1;
 
         for (i = 0; i < f->fmt->colplanes; i++)
                 depth += f->fmt->depth[i];
@@ -1615,7 +1614,6 @@ static int fimc_probe(struct platform_device *pdev)
         pdata = pdev->dev.platform_data;
         fimc->pdata = pdata;
 
-        set_bit(ST_LPM, &fimc->state);
 
         init_waitqueue_head(&fimc->irq_queue);
         spin_lock_init(&fimc->slock);
@@ -1707,8 +1705,6 @@ static int fimc_runtime_resume(struct device *dev)
         /* Enable clocks and perform basic initalization */
         clk_enable(fimc->clock[CLK_GATE]);
         fimc_hw_reset(fimc);
-        if (fimc->variant->out_buf_count > 4)
-                fimc_hw_set_dma_seq(fimc, 0xF);
 
         /* Resume the capture or mem-to-mem device */
         if (fimc_capture_busy(fimc))
@@ -1750,8 +1746,6 @@ static int fimc_resume(struct device *dev)
                 return 0;
         }
         fimc_hw_reset(fimc);
-        if (fimc->variant->out_buf_count > 4)
-                fimc_hw_set_dma_seq(fimc, 0xF);
         spin_unlock_irqrestore(&fimc->slock, flags);
 
         if (fimc_capture_busy(fimc))
@@ -1780,7 +1774,6 @@ static int __devexit fimc_remove(struct platform_device *pdev)
         struct fimc_dev *fimc = platform_get_drvdata(pdev);
 
         pm_runtime_disable(&pdev->dev);
-        fimc_runtime_suspend(&pdev->dev);
         pm_runtime_set_suspended(&pdev->dev);
 
         vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
@@ -1840,6 +1833,7 @@ static struct samsung_fimc_variant fimc0_variant_s5p = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 8,
+        .min_vsize_align = 16,
         .out_buf_count   = 4,
         .pix_limit       = &s5p_pix_limit[0],
 };
@@ -1849,6 +1843,7 @@ static struct samsung_fimc_variant fimc2_variant_s5p = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 8,
+        .min_vsize_align = 16,
         .out_buf_count   = 4,
         .pix_limit = &s5p_pix_limit[1],
 };
@@ -1861,6 +1856,7 @@ static struct samsung_fimc_variant fimc0_variant_s5pv210 = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 8,
+        .min_vsize_align = 16,
         .out_buf_count   = 4,
         .pix_limit       = &s5p_pix_limit[1],
 };
@@ -1874,6 +1870,7 @@ static struct samsung_fimc_variant fimc1_variant_s5pv210 = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 1,
+        .min_vsize_align = 1,
         .out_buf_count   = 4,
         .pix_limit       = &s5p_pix_limit[2],
 };
@@ -1884,6 +1881,7 @@ static struct samsung_fimc_variant fimc2_variant_s5pv210 = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 8,
+        .min_vsize_align = 16,
         .out_buf_count   = 4,
         .pix_limit       = &s5p_pix_limit[2],
 };
@@ -1898,6 +1896,7 @@ static struct samsung_fimc_variant fimc0_variant_exynos4 = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 2,
+        .min_vsize_align = 1,
         .out_buf_count   = 32,
         .pix_limit       = &s5p_pix_limit[1],
 };
@@ -1910,6 +1909,7 @@ static struct samsung_fimc_variant fimc3_variant_exynos4 = {
         .min_inp_pixsize = 16,
         .min_out_pixsize = 16,
         .hor_offs_align  = 2,
+        .min_vsize_align = 1,
         .out_buf_count   = 32,
         .pix_limit       = &s5p_pix_limit[3],
 };
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index a6936dad5b10..c7f01c47b20f 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -377,6 +377,7 @@ struct fimc_pix_limit {
  * @min_inp_pixsize: minimum input pixel size
  * @min_out_pixsize: minimum output pixel size
  * @hor_offs_align: horizontal pixel offset aligment
+ * @min_vsize_align: minimum vertical pixel size alignment
  * @out_buf_count: the number of buffers in output DMA sequence
  */
 struct samsung_fimc_variant {
@@ -390,6 +391,7 @@ struct samsung_fimc_variant {
         u16             min_inp_pixsize;
         u16             min_out_pixsize;
         u16             hor_offs_align;
+        u16             min_vsize_align;
         u16             out_buf_count;
 };
 
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index cc337b1de913..615c862f0360 100644
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -220,6 +220,7 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd,
         sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter,
                                        s_info->pdata->board_info, NULL);
         if (IS_ERR_OR_NULL(sd)) {
+                i2c_put_adapter(adapter);
                 v4l2_err(&fmd->v4l2_dev, "Failed to acquire subdev\n");
                 return NULL;
         }
@@ -234,12 +235,15 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd,
 static void fimc_md_unregister_sensor(struct v4l2_subdev *sd)
 {
         struct i2c_client *client = v4l2_get_subdevdata(sd);
+        struct i2c_adapter *adapter;
 
         if (!client)
                 return;
         v4l2_device_unregister_subdev(sd);
+        adapter = client->adapter;
         i2c_unregister_device(client);
-        i2c_put_adapter(client->adapter);
+        if (adapter)
+                i2c_put_adapter(adapter);
 }
 
 static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
@@ -381,20 +385,28 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
 
 static int fimc_md_register_video_nodes(struct fimc_md *fmd)
 {
+        struct video_device *vdev;
         int i, ret = 0;
 
         for (i = 0; i < FIMC_MAX_DEVS && !ret; i++) {
                 if (!fmd->fimc[i])
                         continue;
 
-                if (fmd->fimc[i]->m2m.vfd)
-                        ret = video_register_device(fmd->fimc[i]->m2m.vfd,
-                                                    VFL_TYPE_GRABBER, -1);
-                if (ret)
-                        break;
-                if (fmd->fimc[i]->vid_cap.vfd)
-                        ret = video_register_device(fmd->fimc[i]->vid_cap.vfd,
-                                                    VFL_TYPE_GRABBER, -1);
+                vdev = fmd->fimc[i]->m2m.vfd;
+                if (vdev) {
+                        ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+                        if (ret)
+                                break;
+                        v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n",
+                                  vdev->name, video_device_node_name(vdev));
+                }
+
+                vdev = fmd->fimc[i]->vid_cap.vfd;
+                if (vdev == NULL)
+                        continue;
+                ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+                v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n",
+                          vdev->name, video_device_node_name(vdev));
         }
 
         return ret;
@@ -502,7 +514,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
                         if (WARN(csis == NULL,
                                  "MIPI-CSI interface specified "
                                  "but s5p-csis module is not loaded!\n"))
-                                continue;
+                                return -EINVAL;
 
                         ret = media_entity_create_link(&sensor->entity, 0,
                                               &csis->entity, CSIS_PAD_SINK,
@@ -742,9 +754,6 @@ static int __devinit fimc_md_probe(struct platform_device *pdev)
         struct fimc_md *fmd;
         int ret;
 
-        if (WARN(!pdev->dev.platform_data, "Platform data not specified!\n"))
-                return -EINVAL;
-
         fmd = kzalloc(sizeof(struct fimc_md), GFP_KERNEL);
         if (!fmd)
                 return -ENOMEM;
@@ -782,9 +791,11 @@ static int __devinit fimc_md_probe(struct platform_device *pdev)
         if (ret)
                 goto err3;
 
-        ret = fimc_md_register_sensor_entities(fmd);
-        if (ret)
-                goto err3;
+        if (pdev->dev.platform_data) {
+                ret = fimc_md_register_sensor_entities(fmd);
+                if (ret)
+                        goto err3;
+        }
         ret = fimc_md_create_links(fmd);
         if (ret)
                 goto err3;
diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c
index 20e664e34163..44f5c2d1920b 100644
--- a/drivers/media/video/s5p-fimc/fimc-reg.c
+++ b/drivers/media/video/s5p-fimc/fimc-reg.c
@@ -35,6 +35,9 @@ void fimc_hw_reset(struct fimc_dev *dev)
         cfg = readl(dev->regs + S5P_CIGCTRL);
         cfg &= ~S5P_CIGCTRL_SWRST;
         writel(cfg, dev->regs + S5P_CIGCTRL);
+
+        if (dev->variant->out_buf_count > 4)
+                fimc_hw_set_dma_seq(dev, 0xF);
 }
 
 static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx)
@@ -251,7 +254,14 @@ static void fimc_hw_set_scaler(struct fimc_ctx *ctx)
         struct fimc_scaler *sc = &ctx->scaler;
         struct fimc_frame *src_frame = &ctx->s_frame;
         struct fimc_frame *dst_frame = &ctx->d_frame;
-        u32 cfg = 0;
+
+        u32 cfg = readl(dev->regs + S5P_CISCCTRL);
+
+        cfg &= ~(S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE |
+                 S5P_CISCCTRL_SCALEUP_H | S5P_CISCCTRL_SCALEUP_V |
+                 S5P_CISCCTRL_SCALERBYPASS | S5P_CISCCTRL_ONE2ONE |
+                 S5P_CISCCTRL_INRGB_FMT_MASK | S5P_CISCCTRL_OUTRGB_FMT_MASK |
+                 S5P_CISCCTRL_INTERLACE | S5P_CISCCTRL_RGB_EXT);
 
         if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
                 cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE);
@@ -308,9 +318,9 @@ void fimc_hw_set_mainscaler(struct fimc_ctx *ctx)
         fimc_hw_set_scaler(ctx);
 
         cfg = readl(dev->regs + S5P_CISCCTRL);
+        cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK);
 
         if (variant->has_mainscaler_ext) {
-                cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK);
                 cfg |= S5P_CISCCTRL_MHRATIO_EXT(sc->main_hratio);
                 cfg |= S5P_CISCCTRL_MVRATIO_EXT(sc->main_vratio);
                 writel(cfg, dev->regs + S5P_CISCCTRL);
@@ -323,7 +333,6 @@ void fimc_hw_set_mainscaler(struct fimc_ctx *ctx)
                 cfg |= S5P_CIEXTEN_MVRATIO_EXT(sc->main_vratio);
                 writel(cfg, dev->regs + S5P_CIEXTEN);
         } else {
-                cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK);
                 cfg |= S5P_CISCCTRL_MHRATIO(sc->main_hratio);
                 cfg |= S5P_CISCCTRL_MVRATIO(sc->main_vratio);
                 writel(cfg, dev->regs + S5P_CISCCTRL);
diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
index 1e8cdb77d4b8..dff9dc798795 100644
--- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
@@ -61,7 +61,7 @@ static struct s5p_mfc_fmt formats[] = {
                 .num_planes = 1,
         },
         {
-                .name = "H264 Encoded Stream",
+                .name = "H263 Encoded Stream",
                 .fourcc = V4L2_PIX_FMT_H263,
                 .codec_mode = S5P_FIMV_CODEC_H263_ENC,
                 .type = MFC_FMT_ENC,
diff --git a/drivers/media/video/s5p-tv/mixer_video.c b/drivers/media/video/s5p-tv/mixer_video.c
index e16d3a4bc1dc..b47d0c06ecf5 100644
--- a/drivers/media/video/s5p-tv/mixer_video.c
+++ b/drivers/media/video/s5p-tv/mixer_video.c
@@ -16,6 +16,7 @@
 #include <media/v4l2-ioctl.h>
 #include <linux/videodev2.h>
 #include <linux/mm.h>
+#include <linux/module.h>
 #include <linux/version.h>
 #include <linux/timer.h>
 #include <media/videobuf2-dma-contig.h>
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index f390682629cf..c51decfcae19 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -566,8 +566,10 @@ static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
         ret = sh_mobile_ceu_soft_reset(pcdev);
 
         csi2_sd = find_csi2(pcdev);
-        if (csi2_sd)
-                csi2_sd->grp_id = (long)icd;
+        if (csi2_sd) {
+                csi2_sd->grp_id = soc_camera_grp_id(icd);
+                v4l2_set_subdev_hostdata(csi2_sd, icd);
+        }
 
         ret = v4l2_subdev_call(csi2_sd, core, s_power, 1);
         if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) {
@@ -768,7 +770,7 @@ static struct v4l2_subdev *find_bus_subdev(struct sh_mobile_ceu_dev *pcdev,
 {
         if (pcdev->csi2_pdev) {
                 struct v4l2_subdev *csi2_sd = find_csi2(pcdev);
-                if (csi2_sd && csi2_sd->grp_id == (u32)icd)
+                if (csi2_sd && csi2_sd->grp_id == soc_camera_grp_id(icd))
                         return csi2_sd;
         }
 
@@ -1089,8 +1091,9 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
                         /* Try 2560x1920, 1280x960, 640x480, 320x240 */
                         mf.width        = 2560 >> shift;
                         mf.height       = 1920 >> shift;
-                        ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video,
-                                                         s_mbus_fmt, &mf);
+                        ret = v4l2_device_call_until_err(sd->v4l2_dev,
+                                        soc_camera_grp_id(icd), video,
+                                        s_mbus_fmt, &mf);
                         if (ret < 0)
                                 return ret;
                         shift++;
@@ -1389,7 +1392,8 @@ static int client_s_fmt(struct soc_camera_device *icd,
         bool ceu_1to1;
         int ret;
 
-        ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video,
+        ret = v4l2_device_call_until_err(sd->v4l2_dev,
+                                         soc_camera_grp_id(icd), video,
                                          s_mbus_fmt, mf);
         if (ret < 0)
                 return ret;
@@ -1426,8 +1430,9 @@ static int client_s_fmt(struct soc_camera_device *icd,
                 tmp_h = min(2 * tmp_h, max_height);
                 mf->width = tmp_w;
                 mf->height = tmp_h;
-                ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video,
-                                                 s_mbus_fmt, mf);
+                ret = v4l2_device_call_until_err(sd->v4l2_dev,
+                                        soc_camera_grp_id(icd), video,
+                                        s_mbus_fmt, mf);
                 dev_geo(dev, "Camera scaled to %ux%u\n",
                         mf->width, mf->height);
                 if (ret < 0) {
@@ -1580,8 +1585,9 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
         }
 
         if (interm_width < icd->user_width || interm_height < icd->user_height) {
-                ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video,
-                                                 s_mbus_fmt, &mf);
+                ret = v4l2_device_call_until_err(sd->v4l2_dev,
+                                        soc_camera_grp_id(icd), video,
+                                        s_mbus_fmt, &mf);
                 if (ret < 0)
                         return ret;
 
@@ -1867,7 +1873,8 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
         mf.code         = xlate->code;
         mf.colorspace   = pix->colorspace;
 
-        ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video, try_mbus_fmt, &mf);
+        ret = v4l2_device_call_until_err(sd->v4l2_dev, soc_camera_grp_id(icd),
+                                         video, try_mbus_fmt, &mf);
         if (ret < 0)
                 return ret;
 
@@ -1891,8 +1898,9 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
                          */
                         mf.width = 2560;
                         mf.height = 1920;
-                        ret = v4l2_device_call_until_err(sd->v4l2_dev, (long)icd, video,
-                                                         try_mbus_fmt, &mf);
+                        ret = v4l2_device_call_until_err(sd->v4l2_dev,
+                                        soc_camera_grp_id(icd), video,
+                                        try_mbus_fmt, &mf);
                         if (ret < 0) {
                                 /* Shouldn't actually happen... */
                                 dev_err(icd->parent,
diff --git a/drivers/media/video/sh_mobile_csi2.c b/drivers/media/video/sh_mobile_csi2.c
index ea4f0473ed3b..8a652b53ff7e 100644
--- a/drivers/media/video/sh_mobile_csi2.c
+++ b/drivers/media/video/sh_mobile_csi2.c
@@ -143,7 +143,7 @@ static int sh_csi2_s_mbus_config(struct v4l2_subdev *sd,
                                  const struct v4l2_mbus_config *cfg)
 {
         struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
-        struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id;
+        struct soc_camera_device *icd = v4l2_get_subdev_hostdata(sd);
         struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
         struct v4l2_mbus_config client_cfg = {.type = V4L2_MBUS_CSI2,
                                               .flags = priv->mipi_flags};
@@ -202,7 +202,7 @@ static void sh_csi2_hwinit(struct sh_csi2 *priv)
 static int sh_csi2_client_connect(struct sh_csi2 *priv)
 {
         struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data;
-        struct soc_camera_device *icd = (struct soc_camera_device *)priv->subdev.grp_id;
+        struct soc_camera_device *icd = v4l2_get_subdev_hostdata(&priv->subdev);
         struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
         struct device *dev = v4l2_get_subdevdata(&priv->subdev);
         struct v4l2_mbus_config cfg;
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index b72580c38957..62e4312515cb 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -1103,7 +1103,8 @@ static int soc_camera_probe(struct soc_camera_device *icd)
         }
 
         sd = soc_camera_to_subdev(icd);
-        sd->grp_id = (long)icd;
+        sd->grp_id = soc_camera_grp_id(icd);
+        v4l2_set_subdev_hostdata(sd, icd);
 
         if (v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler))
                 goto ectrl;
diff --git a/drivers/mfd/ab5500-debugfs.c b/drivers/mfd/ab5500-debugfs.c
index 43c0ebb81956..b7b2d3483fd4 100644
--- a/drivers/mfd/ab5500-debugfs.c
+++ b/drivers/mfd/ab5500-debugfs.c
@@ -4,7 +4,7 @@
  * Debugfs support for the AB5500 MFD driver
  */
 
-#include <linux/export.h>
+#include <linux/module.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/mfd/ab5500/ab5500.h>
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 1e9173804ede..d3d572b2317b 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -620,6 +620,7 @@ static struct resource __devinitdata ab8500_fg_resources[] = {
 
 static struct resource __devinitdata ab8500_chargalg_resources[] = {};
 
+#ifdef CONFIG_DEBUG_FS
 static struct resource __devinitdata ab8500_debug_resources[] = {
         {
                 .name   = "IRQ_FIRST",
@@ -634,6 +635,7 @@ static struct resource __devinitdata ab8500_debug_resources[] = {
                 .flags  = IORESOURCE_IRQ,
         },
 };
+#endif
 
 static struct resource __devinitdata ab8500_usb_resources[] = {
         {
diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
index f1d88483112c..8d816cce8322 100644
--- a/drivers/mfd/adp5520.c
+++ b/drivers/mfd/adp5520.c
@@ -109,7 +109,7 @@ int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask)
 
         ret = __adp5520_read(chip->client, reg, &reg_val);
 
-        if (!ret && ((reg_val & bit_mask) == 0)) {
+        if (!ret && ((reg_val & bit_mask) != bit_mask)) {
                 reg_val |= bit_mask;
                 ret = __adp5520_write(chip->client, reg, reg_val);
         }
diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
index 1b79c37fd599..1924b857a0fb 100644
--- a/drivers/mfd/da903x.c
+++ b/drivers/mfd/da903x.c
@@ -182,7 +182,7 @@ int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
         if (ret)
                 goto out;
 
-        if ((reg_val & bit_mask) == 0) {
+        if ((reg_val & bit_mask) != bit_mask) {
                 reg_val |= bit_mask;
                 ret = __da903x_write(chip->client, reg, reg_val);
         }
@@ -549,6 +549,7 @@ static int __devexit da903x_remove(struct i2c_client *client)
         struct da903x_chip *chip = i2c_get_clientdata(client);
 
         da903x_remove_subdevs(chip);
+        free_irq(client->irq, chip);
         kfree(chip);
         return 0;
 }
diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index 1e9ee533eacb..ef39528088f2 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -16,6 +16,7 @@
  */
 
 #include <linux/err.h>
+#include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index bba26d96c240..a5ddf31b60ca 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -197,7 +197,7 @@ int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
         if (ret)
                 goto out;
 
-        if ((reg_val & bit_mask) == 0) {
+        if ((reg_val & bit_mask) != bit_mask) {
                 reg_val |= bit_mask;
                 ret = __tps6586x_write(to_i2c_client(dev), reg, reg_val);
         }
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 6f5b8cf2f652..c1da84bc1573 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -120,7 +120,7 @@ int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask)
                 goto out;
         }
 
-        data &= mask;
+        data &= ~mask;
         err = tps65910_i2c_write(tps65910, reg, 1, &data);
         if (err)
                 dev_err(tps65910->dev, "write to reg %x failed\n", reg);
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index bfbd66021afd..61e70cfaa774 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -363,13 +363,13 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
                 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
                 return -EPERM;
         }
-        sid = twl_map[mod_no].sid;
-        twl = &twl_modules[sid];
-
         if (unlikely(!inuse)) {
-                pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
+                pr_err("%s: not initialized\n", DRIVER_NAME);
                 return -EPERM;
         }
+        sid = twl_map[mod_no].sid;
+        twl = &twl_modules[sid];
+
         mutex_lock(&twl->xfer_lock);
         /*
          * [MSG1]: fill the register address data
@@ -420,13 +420,13 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
                 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
                 return -EPERM;
         }
-        sid = twl_map[mod_no].sid;
-        twl = &twl_modules[sid];
-
         if (unlikely(!inuse)) {
-                pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
+                pr_err("%s: not initialized\n", DRIVER_NAME);
                 return -EPERM;
         }
+        sid = twl_map[mod_no].sid;
+        twl = &twl_modules[sid];
+
         mutex_lock(&twl->xfer_lock);
         /* [MSG1] fill the register address data */
         msg = &twl->xfer_msg[0];
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index f062c8cc6c38..29f11e0765fe 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -432,6 +432,7 @@ struct sih_agent {
         u32                     edge_change;
 
         struct mutex            irq_lock;
+        char                    *irq_name;
 };
 
 /*----------------------------------------------------------------------*/
@@ -589,7 +590,7 @@ static inline int sih_read_isr(const struct sih *sih)
  * Generic handler for SIH interrupts ... we "know" this is called
  * in task context, with IRQs enabled.
  */
-static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc)
+static irqreturn_t handle_twl4030_sih(int irq, void *data)
 {
         struct sih_agent *agent = irq_get_handler_data(irq);
         const struct sih *sih = agent->sih;
@@ -602,7 +603,7 @@ static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc)
                 pr_err("twl4030: %s SIH, read ISR error %d\n",
                         sih->name, isr);
                 /* REVISIT:  recover; eventually mask it all, etc */
-                return;
+                return IRQ_HANDLED;
         }
 
         while (isr) {
@@ -616,6 +617,7 @@ static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc)
                         pr_err("twl4030: %s SIH, invalid ISR bit %d\n",
                                 sih->name, irq);
         }
+        return IRQ_HANDLED;
 }
 
 static unsigned twl4030_irq_next;
@@ -668,18 +670,19 @@ int twl4030_sih_setup(int module)
                 activate_irq(irq);
         }
 
-        status = irq_base;
         twl4030_irq_next += i;
 
         /* replace generic PIH handler (handle_simple_irq) */
         irq = sih_mod + twl4030_irq_base;
         irq_set_handler_data(irq, agent);
-        irq_set_chained_handler(irq, handle_twl4030_sih);
+        agent->irq_name = kasprintf(GFP_KERNEL, "twl4030_%s", sih->name);
+        status = request_threaded_irq(irq, NULL, handle_twl4030_sih, 0,
+                                      agent->irq_name ?: sih->name, NULL);
 
         pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name,
                         irq, irq_base, twl4030_irq_next - 1);
 
-        return status;
+        return status < 0 ? status : irq_base;
 }
 
 /* FIXME need a call to reverse twl4030_sih_setup() ... */
@@ -733,8 +736,9 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
         }
 
         /* install an irq handler to demultiplex the TWL4030 interrupt */
-        status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih, 0,
-                                        "TWL4030-PIH", NULL);
+        status = request_threaded_irq(irq_num, NULL, handle_twl4030_pih,
+                                      IRQF_ONESHOT,
+                                      "TWL4030-PIH", NULL);
         if (status < 0) {
                 pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status);
                 goto fail_rqirq;
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 5d6ba132837e..61894fced8ea 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -239,6 +239,7 @@ static int wm8994_suspend(struct device *dev)
 
         switch (wm8994->type) {
         case WM8958:
+        case WM1811:
                 ret = wm8994_reg_read(wm8994, WM8958_MIC_DETECT_1);
                 if (ret < 0) {
                         dev_err(dev, "Failed to read power status: %d\n", ret);
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index a1cb21f95302..1e0e27cbe987 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1606,6 +1606,14 @@ static const struct mmc_fixup blk_fixups[] =
                   MMC_QUIRK_BLK_NO_CMD23),
         MMC_FIXUP("MMC32G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
                   MMC_QUIRK_BLK_NO_CMD23),
+
+        /*
+         * Some Micron MMC cards needs longer data read timeout than
+         * indicated in CSD.
+         */
+        MMC_FIXUP(CID_NAME_ANY, 0x13, 0x200, add_quirk_mmc,
+                  MMC_QUIRK_LONG_READ_TIME),
+
         END_FIXUP
 };
 
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 5278ffb20e74..950b97d7412a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -529,6 +529,18 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card)
                         data->timeout_clks = 0;
                 }
         }
+
+        /*
+         * Some cards require longer data read timeout than indicated in CSD.
+         * Address this by setting the read timeout to a "reasonably high"
+         * value. For the cards tested, 300ms has proven enough. If necessary,
+         * this value can be increased if other problematic cards require this.
+         */
+        if (mmc_card_long_read_time(card) && data->flags & MMC_DATA_READ) {
+                data->timeout_ns = 300000000;
+                data->timeout_clks = 0;
+        }
+
         /*
          * Some cards need very high timeouts if driven in SPI mode.
          * The worst observed timeout was 900ms after writing a
@@ -1213,6 +1225,46 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type)
         mmc_host_clk_release(host);
 }
 
+static void mmc_poweroff_notify(struct mmc_host *host)
+{
+        struct mmc_card *card;
+        unsigned int timeout;
+        unsigned int notify_type = EXT_CSD_NO_POWER_NOTIFICATION;
+        int err = 0;
+
+        card = host->card;
+
+        /*
+         * Send power notify command only if card
+         * is mmc and notify state is powered ON
+         */
+        if (card && mmc_card_mmc(card) &&
+            (card->poweroff_notify_state == MMC_POWERED_ON)) {
+
+                if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) {
+                        notify_type = EXT_CSD_POWER_OFF_SHORT;
+                        timeout = card->ext_csd.generic_cmd6_time;
+                        card->poweroff_notify_state = MMC_POWEROFF_SHORT;
+                } else {
+                        notify_type = EXT_CSD_POWER_OFF_LONG;
+                        timeout = card->ext_csd.power_off_longtime;
+                        card->poweroff_notify_state = MMC_POWEROFF_LONG;
+                }
+
+                err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+                                 EXT_CSD_POWER_OFF_NOTIFICATION,
+                                 notify_type, timeout);
+
+                if (err && err != -EBADMSG)
+                        pr_err("Device failed to respond within %d poweroff "
+                               "time. Forcefully powering down the device\n",
+                               timeout);
+
+                /* Set the card state to no notification after the poweroff */
+                card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
+        }
+}
+
 /*
  * Apply power to the MMC stack.  This is a two-stage process.
  * First, we enable power to the card without the clock running.
@@ -1269,42 +1321,12 @@ static void mmc_power_up(struct mmc_host *host)
 
 void mmc_power_off(struct mmc_host *host)
 {
-        struct mmc_card *card;
-        unsigned int notify_type;
-        unsigned int timeout;
-        int err;
-
         mmc_host_clk_hold(host);
 
-        card = host->card;
         host->ios.clock = 0;
         host->ios.vdd = 0;
 
-        if (card && mmc_card_mmc(card) &&
-            (card->poweroff_notify_state == MMC_POWERED_ON)) {
-
-                if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) {
-                        notify_type = EXT_CSD_POWER_OFF_SHORT;
-                        timeout = card->ext_csd.generic_cmd6_time;
-                        card->poweroff_notify_state = MMC_POWEROFF_SHORT;
-                } else {
-                        notify_type = EXT_CSD_POWER_OFF_LONG;
-                        timeout = card->ext_csd.power_off_longtime;
-                        card->poweroff_notify_state = MMC_POWEROFF_LONG;
-                }
-
-                err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-                                 EXT_CSD_POWER_OFF_NOTIFICATION,
-                                 notify_type, timeout);
-
-                if (err && err != -EBADMSG)
-                        pr_err("Device failed to respond within %d poweroff "
-                               "time. Forcefully powering down the device\n",
-                               timeout);
-
-                /* Set the card state to no notification after the poweroff */
-                card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
-        }
+        mmc_poweroff_notify(host);
 
         /*
          * Reset ocr mask to be the highest possible voltage supported for
@@ -2196,7 +2218,7 @@ int mmc_card_sleep(struct mmc_host *host)
 
         mmc_bus_get(host);
 
-        if (host->bus_ops && !host->bus_dead && host->bus_ops->awake)
+        if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep)
                 err = host->bus_ops->sleep(host);
 
         mmc_bus_put(host);
@@ -2302,8 +2324,17 @@ int mmc_suspend_host(struct mmc_host *host)
                  * pre-claim the host.
                  */
                 if (mmc_try_claim_host(host)) {
-                        if (host->bus_ops->suspend)
+                        if (host->bus_ops->suspend) {
+                                /*
+                                 * For eMMC 4.5 device send notify command
+                                 * before sleep, because in sleep state eMMC 4.5
+                                 * devices respond to only RESET and AWAKE cmd
+                                 */
+                                mmc_poweroff_notify(host);
                                 err = host->bus_ops->suspend(host);
+                        }
+                        mmc_do_release_host(host);
+
                         if (err == -ENOSYS || !host->bus_ops->resume) {
                                 /*
                                  * We simply "remove" the card in this case.
@@ -2318,7 +2349,6 @@ int mmc_suspend_host(struct mmc_host *host)
                                 host->pm_flags = 0;
                                 err = 0;
                         }
-                        mmc_do_release_host(host);
                 } else {
                         err = -EBUSY;
                 }
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index e8a5eb38748b..d31c78b72b0f 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -302,17 +302,6 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
         host->max_blk_size = 512;
         host->max_blk_count = PAGE_CACHE_SIZE / 512;
 
-        /*
-         * Enable runtime power management by default. This flag was added due
-         * to runtime power management causing disruption for some users, but
-         * the power on/off code has been improved since then.
-         *
-         * We'll enable this flag by default as an experiment, and if no
-         * problems are reported, we will follow up later and remove the flag
-         * altogether.
-         */
-        host->caps = MMC_CAP_POWER_OFF_CARD;
-
         return host;
 
 free:
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index dbf421a6279c..d240427c1246 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -876,17 +876,21 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
          * set the notification byte in the ext_csd register of device
          */
         if ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) &&
-            (card->poweroff_notify_state == MMC_NO_POWER_NOTIFICATION)) {
+            (card->ext_csd.rev >= 6)) {
                 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
                                  EXT_CSD_POWER_OFF_NOTIFICATION,
                                  EXT_CSD_POWER_ON,
                                  card->ext_csd.generic_cmd6_time);
                 if (err && err != -EBADMSG)
                         goto free_card;
-        }
 
-        if (!err)
-                card->poweroff_notify_state = MMC_POWERED_ON;
+                /*
+                 * The err can be -EBADMSG or 0,
+                 * so check for success and update the flag
+                 */
+                if (!err)
+                        card->poweroff_notify_state = MMC_POWERED_ON;
+        }
 
         /*
          * Activate high speed (if supported)
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 325ea61e12d3..8e0fbe994047 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -732,6 +732,7 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                                 "failed to config DMA channel. Falling back to PIO\n");
                         dma_release_channel(host->dma);
                         host->do_dma = 0;
+                        host->dma = NULL;
                 }
         }
 
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 101cd31c8220..d5fe43d53c51 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1010,6 +1010,7 @@ static void omap_hsmmc_dma_cleanup(struct omap_hsmmc_host *host, int errno)
                         host->data->sg_len,
                         omap_hsmmc_get_dma_dir(host, host->data));
                 omap_free_dma(dma_ch);
+                host->data->host_cookie = 0;
         }
         host->data = NULL;
 }
@@ -1575,8 +1576,10 @@ static void omap_hsmmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
         struct mmc_data *data = mrq->data;
 
         if (host->use_dma) {
-                dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
-                             omap_hsmmc_get_dma_dir(host, data));
+                if (data->host_cookie)
+                        dma_unmap_sg(mmc_dev(host->mmc), data->sg,
+                                     data->sg_len,
+                                     omap_hsmmc_get_dma_dir(host, data));
                 data->host_cookie = 0;
         }
 }
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index 4b920b7621cf..b4257e700617 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/mmc/host.h>
+#include <linux/module.h>
 #include <mach/cns3xxx.h>
 #include "sdhci-pltfm.h"
 
@@ -108,13 +109,10 @@ static struct platform_driver sdhci_cns3xxx_driver = {
         .driver         = {
                 .name   = "sdhci-cns3xxx",
                 .owner  = THIS_MODULE,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .probe          = sdhci_cns3xxx_probe,
         .remove         = __devexit_p(sdhci_cns3xxx_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_cns3xxx_init(void)
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index f2d29dca4420..a81312c91f70 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -82,13 +82,10 @@ static struct platform_driver sdhci_dove_driver = {
         .driver         = {
                 .name   = "sdhci-dove",
                 .owner  = THIS_MODULE,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .probe          = sdhci_dove_probe,
         .remove         = __devexit_p(sdhci_dove_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_dove_init(void)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 4b976f00ea85..38ebc4ea259f 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -599,14 +599,11 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
                 .name   = "sdhci-esdhc-imx",
                 .owner  = THIS_MODULE,
                 .of_match_table = imx_esdhc_dt_ids,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .id_table       = imx_esdhc_devtype,
         .probe          = sdhci_esdhc_imx_probe,
         .remove         = __devexit_p(sdhci_esdhc_imx_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_esdhc_imx_init(void)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 59e9d003e589..01e5f627e0f0 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -125,13 +125,10 @@ static struct platform_driver sdhci_esdhc_driver = {
                 .name = "sdhci-esdhc",
                 .owner = THIS_MODULE,
                 .of_match_table = sdhci_esdhc_of_match,
+                .pm = SDHCI_PLTFM_PMOPS,
         },
         .probe = sdhci_esdhc_probe,
         .remove = __devexit_p(sdhci_esdhc_remove),
-#ifdef CONFIG_PM
-        .suspend = sdhci_pltfm_suspend,
-        .resume = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_esdhc_init(void)
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 9b0d794a4f69..3619adc7d9fc 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -87,13 +87,10 @@ static struct platform_driver sdhci_hlwd_driver = {
                 .name = "sdhci-hlwd",
                 .owner = THIS_MODULE,
                 .of_match_table = sdhci_hlwd_of_match,
+                .pm = SDHCI_PLTFM_PMOPS,
         },
         .probe = sdhci_hlwd_probe,
         .remove = __devexit_p(sdhci_hlwd_remove),
-#ifdef CONFIG_PM
-        .suspend = sdhci_pltfm_suspend,
-        .resume = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_hlwd_init(void)
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index d833d9c2f7e3..6878a94626bc 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -54,8 +54,7 @@ struct sdhci_pci_fixes {
         int                     (*probe_slot) (struct sdhci_pci_slot *);
         void                    (*remove_slot) (struct sdhci_pci_slot *, int);
 
-        int                     (*suspend) (struct sdhci_pci_chip *,
-                                        pm_message_t);
+        int                     (*suspend) (struct sdhci_pci_chip *);
         int                     (*resume) (struct sdhci_pci_chip *);
 };
 
@@ -549,7 +548,7 @@ static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead)
                 jmicron_enable_mmc(slot->host, 0);
 }
 
-static int jmicron_suspend(struct sdhci_pci_chip *chip, pm_message_t state)
+static int jmicron_suspend(struct sdhci_pci_chip *chip)
 {
         int i;
 
@@ -993,8 +992,9 @@ static struct sdhci_ops sdhci_pci_ops = {
 
 #ifdef CONFIG_PM
 
-static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+static int sdhci_pci_suspend(struct device *dev)
 {
+        struct pci_dev *pdev = to_pci_dev(dev);
         struct sdhci_pci_chip *chip;
         struct sdhci_pci_slot *slot;
         mmc_pm_flag_t slot_pm_flags;
@@ -1010,7 +1010,7 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state)
                 if (!slot)
                         continue;
 
-                ret = sdhci_suspend_host(slot->host, state);
+                ret = sdhci_suspend_host(slot->host);
 
                 if (ret) {
                         for (i--; i >= 0; i--)
@@ -1026,7 +1026,7 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state)
         }
 
         if (chip->fixes && chip->fixes->suspend) {
-                ret = chip->fixes->suspend(chip, state);
+                ret = chip->fixes->suspend(chip);
                 if (ret) {
                         for (i = chip->num_slots - 1; i >= 0; i--)
                                 sdhci_resume_host(chip->slots[i]->host);
@@ -1042,16 +1042,17 @@ static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state)
                 }
                 pci_set_power_state(pdev, PCI_D3hot);
         } else {
-                pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+                pci_enable_wake(pdev, PCI_D3hot, 0);
                 pci_disable_device(pdev);
-                pci_set_power_state(pdev, pci_choose_state(pdev, state));
+                pci_set_power_state(pdev, PCI_D3hot);
         }
 
         return 0;
 }
 
-static int sdhci_pci_resume(struct pci_dev *pdev)
+static int sdhci_pci_resume(struct device *dev)
 {
+        struct pci_dev *pdev = to_pci_dev(dev);
         struct sdhci_pci_chip *chip;
         struct sdhci_pci_slot *slot;
         int i, ret;
@@ -1099,7 +1100,6 @@ static int sdhci_pci_runtime_suspend(struct device *dev)
         struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
         struct sdhci_pci_chip *chip;
         struct sdhci_pci_slot *slot;
-        pm_message_t state = { .event = PM_EVENT_SUSPEND };
         int i, ret;
 
         chip = pci_get_drvdata(pdev);
@@ -1121,7 +1121,7 @@ static int sdhci_pci_runtime_suspend(struct device *dev)
         }
 
         if (chip->fixes && chip->fixes->suspend) {
-                ret = chip->fixes->suspend(chip, state);
+                ret = chip->fixes->suspend(chip);
                 if (ret) {
                         for (i = chip->num_slots - 1; i >= 0; i--)
                                 sdhci_runtime_resume_host(chip->slots[i]->host);
@@ -1176,6 +1176,8 @@ static int sdhci_pci_runtime_idle(struct device *dev)
 #endif
 
 static const struct dev_pm_ops sdhci_pci_pm_ops = {
+        .suspend = sdhci_pci_suspend,
+        .resume = sdhci_pci_resume,
         .runtime_suspend = sdhci_pci_runtime_suspend,
         .runtime_resume = sdhci_pci_runtime_resume,
         .runtime_idle = sdhci_pci_runtime_idle,
@@ -1428,8 +1430,6 @@ static struct pci_driver sdhci_driver = {
         .id_table =     pci_ids,
         .probe =        sdhci_pci_probe,
         .remove =       __devexit_p(sdhci_pci_remove),
-        .suspend =      sdhci_pci_suspend,
-        .resume =       sdhci_pci_resume,
         .driver =       {
                 .pm =   &sdhci_pci_pm_ops
         },
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index a9e12ea05583..03970bcb3495 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -194,21 +194,25 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
 EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
 
 #ifdef CONFIG_PM
-int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state)
+static int sdhci_pltfm_suspend(struct device *dev)
 {
-        struct sdhci_host *host = platform_get_drvdata(dev);
+        struct sdhci_host *host = dev_get_drvdata(dev);
 
-        return sdhci_suspend_host(host, state);
+        return sdhci_suspend_host(host);
 }
-EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
 
-int sdhci_pltfm_resume(struct platform_device *dev)
+static int sdhci_pltfm_resume(struct device *dev)
 {
-        struct sdhci_host *host = platform_get_drvdata(dev);
+        struct sdhci_host *host = dev_get_drvdata(dev);
 
         return sdhci_resume_host(host);
 }
-EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);
+
+const struct dev_pm_ops sdhci_pltfm_pmops = {
+        .suspend        = sdhci_pltfm_suspend,
+        .resume         = sdhci_pltfm_resume,
+};
+EXPORT_SYMBOL_GPL(sdhci_pltfm_pmops);
 #endif  /* CONFIG_PM */
 
 static int __init sdhci_pltfm_drv_init(void)
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 3a9fc3f40840..37e0e184a0bb 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -99,8 +99,10 @@ extern int sdhci_pltfm_register(struct platform_device *pdev,
 extern int sdhci_pltfm_unregister(struct platform_device *pdev);
 
 #ifdef CONFIG_PM
-extern int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state);
-extern int sdhci_pltfm_resume(struct platform_device *dev);
+extern const struct dev_pm_ops sdhci_pltfm_pmops;
+#define SDHCI_PLTFM_PMOPS (&sdhci_pltfm_pmops)
+#else
+#define SDHCI_PLTFM_PMOPS NULL
 #endif
 
 #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index d4bf6d30c7ba..7a039c3cb1f1 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -218,13 +218,10 @@ static struct platform_driver sdhci_pxav2_driver = {
         .driver         = {
                 .name   = "sdhci-pxav2",
                 .owner  = THIS_MODULE,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .probe          = sdhci_pxav2_probe,
         .remove         = __devexit_p(sdhci_pxav2_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 static int __init sdhci_pxav2_init(void)
 {
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index cff4ad3e7a59..15673a7ee6a5 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -264,13 +264,10 @@ static struct platform_driver sdhci_pxav3_driver = {
         .driver         = {
                 .name   = "sdhci-pxav3",
                 .owner  = THIS_MODULE,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .probe          = sdhci_pxav3_probe,
         .remove         = __devexit_p(sdhci_pxav3_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 static int __init sdhci_pxav3_init(void)
 {
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 3d00e722efc9..0d33ff0d67fb 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -622,33 +622,38 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
 
 #ifdef CONFIG_PM
 
-static int sdhci_s3c_suspend(struct platform_device *dev, pm_message_t pm)
+static int sdhci_s3c_suspend(struct device *dev)
 {
-        struct sdhci_host *host = platform_get_drvdata(dev);
+        struct sdhci_host *host = dev_get_drvdata(dev);
 
-        return sdhci_suspend_host(host, pm);
+        return sdhci_suspend_host(host);
 }
 
-static int sdhci_s3c_resume(struct platform_device *dev)
+static int sdhci_s3c_resume(struct device *dev)
 {
-        struct sdhci_host *host = platform_get_drvdata(dev);
+        struct sdhci_host *host = dev_get_drvdata(dev);
 
         return sdhci_resume_host(host);
 }
 
+static const struct dev_pm_ops sdhci_s3c_pmops = {
+        .suspend        = sdhci_s3c_suspend,
+        .resume         = sdhci_s3c_resume,
+};
+
+#define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops)
+
 #else
-#define sdhci_s3c_suspend NULL
-#define sdhci_s3c_resume NULL
+#define SDHCI_S3C_PMOPS NULL
 #endif
 
 static struct platform_driver sdhci_s3c_driver = {
         .probe          = sdhci_s3c_probe,
         .remove         = __devexit_p(sdhci_s3c_remove),
-        .suspend        = sdhci_s3c_suspend,
-        .resume         = sdhci_s3c_resume,
         .driver         = {
                 .owner  = THIS_MODULE,
                 .name   = "s3c-sdhci",
+                .pm     = SDHCI_S3C_PMOPS,
         },
 };
 
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 89699e861fc1..e2e18d3f949c 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -318,13 +318,10 @@ static struct platform_driver sdhci_tegra_driver = {
                 .name   = "sdhci-tegra",
                 .owner  = THIS_MODULE,
                 .of_match_table = sdhci_tegra_dt_match,
+                .pm     = SDHCI_PLTFM_PMOPS,
         },
         .probe          = sdhci_tegra_probe,
         .remove         = __devexit_p(sdhci_tegra_remove),
-#ifdef CONFIG_PM
-        .suspend        = sdhci_pltfm_suspend,
-        .resume         = sdhci_pltfm_resume,
-#endif
 };
 
 static int __init sdhci_tegra_init(void)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6d8eea323541..19ed580f2cab 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2327,7 +2327,7 @@ out:
 
 #ifdef CONFIG_PM
 
-int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state)
+int sdhci_suspend_host(struct sdhci_host *host)
 {
         int ret;
 
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 0a5b65460d8a..a04d4d0c6fd2 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -374,7 +374,7 @@ extern int sdhci_add_host(struct sdhci_host *host);
 extern void sdhci_remove_host(struct sdhci_host *host, int dead);
 
 #ifdef CONFIG_PM
-extern int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state);
+extern int sdhci_suspend_host(struct sdhci_host *host);
 extern int sdhci_resume_host(struct sdhci_host *host);
 extern void sdhci_enable_irq_wakeups(struct sdhci_host *host);
 #endif
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 369366c8e205..d5505f3fe2a1 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -908,7 +908,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 if (host->power) {
                         pm_runtime_put(&host->pd->dev);
                         host->power = false;
-                        if (p->down_pwr)
+                        if (p->down_pwr && ios->power_mode == MMC_POWER_OFF)
                                 p->down_pwr(host->pd);
                 }
                 host->state = STATE_IDLE;
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index d85a60cda167..4208b3958069 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -798,7 +798,7 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 /* start bus clock */
                 tmio_mmc_clk_start(host);
         } else if (ios->power_mode != MMC_POWER_UP) {
-                if (host->set_pwr)
+                if (host->set_pwr && ios->power_mode == MMC_POWER_OFF)
                         host->set_pwr(host->pdev, 0);
                 if ((pdata->flags & TMIO_MMC_HAS_COLD_CD) &&
                     pdata->power) {
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index e8f6e65183d7..2ec978bc32ba 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -259,7 +259,7 @@ static int firmware_rom_wait_states = 0x04;
 static int firmware_rom_wait_states = 0x1C;
 #endif
 
-module_param(firmware_rom_wait_states, bool, 0644);
+module_param(firmware_rom_wait_states, int, 0644);
 MODULE_PARM_DESC(firmware_rom_wait_states,
                  "ROM wait states byte=RRRIIEEE (Reserved Internal External)");
 
diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 94f553489725..45876d0e5b8e 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -227,10 +227,14 @@ static int platram_probe(struct platform_device *pdev)
         if (!err)
                 dev_info(&pdev->dev, "registered mtd device\n");
 
-        /* add the whole device. */
-        err = mtd_device_register(info->mtd, NULL, 0);
-        if (err)
-                dev_err(&pdev->dev, "failed to register the entire device\n");
+        if (pdata->nr_partitions) {
+                /* add the whole device. */
+                err = mtd_device_register(info->mtd, NULL, 0);
+                if (err) {
+                        dev_err(&pdev->dev,
+                                "failed to register the entire device\n");
+                }
+        }
 
         return err;
 
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index 411a17df9fc1..2a25b6789af4 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -98,7 +98,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
         }
         info->mtd->owner = THIS_MODULE;
 
-        mtd_device_parse_register(info->mtd, probes, 0, NULL, 0);
+        mtd_device_parse_register(info->mtd, probes, 0, flash->parts, flash->nr_parts);
 
         platform_set_drvdata(pdev, info);
         return 0;
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 071b63420f0e..493ec2fcf97f 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -21,9 +21,9 @@
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 #include <linux/mtd/gpmi-nand.h>
 #include <linux/mtd/partitions.h>
-
 #include "gpmi-nand.h"
 
 /* add our owner bbt descriptor */
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index ee1713907b92..f8aacf48ecdd 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -188,7 +188,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
         if (!flash_np)
                 return -ENODEV;
 
-        ppdata->of_node = flash_np;
+        ppdata.of_node = flash_np;
         ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s",
                         dev_name(&ndfc->ofdev->dev), flash_np->name);
         if (!ndfc->mtd.name) {
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 36b2a4b1c35f..7a0c800b50ad 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -474,7 +474,6 @@ enum rtl_register_content {
         /* Config1 register p.24 */
         LEDS1           = (1 << 7),
         LEDS0           = (1 << 6),
-        MSIEnable       = (1 << 5),     /* Enable Message Signaled Interrupt */
         Speed_down      = (1 << 4),
         MEMMAP          = (1 << 3),
         IOMAP           = (1 << 2),
@@ -482,6 +481,7 @@ enum rtl_register_content {
         PMEnable        = (1 << 0),     /* Power Management Enable */
 
         /* Config2 register p. 25 */
+        MSIEnable       = (1 << 5),     /* 8169 only. Reserved in the 8168. */
         PCI_Clock_66MHz = 0x01,
         PCI_Clock_33MHz = 0x00,
 
@@ -3426,22 +3426,24 @@ static const struct rtl_cfg_info {
 };
 
 /* Cfg9346_Unlock assumed. */
-static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
+static unsigned rtl_try_msi(struct rtl8169_private *tp,
                             const struct rtl_cfg_info *cfg)
 {
+        void __iomem *ioaddr = tp->mmio_addr;
         unsigned msi = 0;
         u8 cfg2;
 
         cfg2 = RTL_R8(Config2) & ~MSIEnable;
         if (cfg->features & RTL_FEATURE_MSI) {
-                if (pci_enable_msi(pdev)) {
-                        dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
+                if (pci_enable_msi(tp->pci_dev)) {
+                        netif_info(tp, hw, tp->dev, "no MSI. Back to INTx.\n");
                 } else {
                         cfg2 |= MSIEnable;
                         msi = RTL_FEATURE_MSI;
                 }
         }
-        RTL_W8(Config2, cfg2);
+        if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+                RTL_W8(Config2, cfg2);
         return msi;
 }
 
@@ -4077,7 +4079,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 tp->features |= RTL_FEATURE_WOL;
         if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
                 tp->features |= RTL_FEATURE_WOL;
-        tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
+        tp->features |= rtl_try_msi(tp, cfg);
         RTL_W8(Cfg9346, Cfg9346_Lock);
 
         if (rtl_tbi_enabled(tp)) {
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index dca9d3369cdd..c97d2f590855 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -836,11 +836,13 @@ int cpdma_chan_stop(struct cpdma_chan *chan)
         chan_write(chan, cp, CPDMA_TEARDOWN_VALUE);
 
         /* handle completed packets */
+        spin_unlock_irqrestore(&chan->lock, flags);
         do {
                 ret = __cpdma_chan_process(chan);
                 if (ret < 0)
                         break;
         } while ((ret & CPDMA_DESC_TD_COMPLETE) == 0);
+        spin_lock_irqsave(&chan->lock, flags);
 
         /* remaining packets haven't been tx/rx'ed, clean them up */
         while (chan->head) {
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 63774372edfa..6b75063988ec 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -926,7 +926,7 @@ static int tile_net_poll(struct napi_struct *napi, int budget)
                 goto done;
 
         /* Re-enable the ingress interrupt. */
-        enable_percpu_irq(priv->intr_id);
+        enable_percpu_irq(priv->intr_id, 0);
 
         /* HACK: Avoid the "rotting packet" problem (see above). */
         if (qup->__packet_receive_read !=
@@ -1296,7 +1296,7 @@ static void tile_net_open_enable(void *dev_ptr)
         info->napi_enabled = true;
 
         /* Enable the ingress interrupt. */
-        enable_percpu_irq(priv->intr_id);
+        enable_percpu_irq(priv->intr_id, 0);
 }
 
 
@@ -1697,7 +1697,7 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags,
         for (i = 0; i < sh->nr_frags; i++) {
 
                 skb_frag_t *f = &sh->frags[i];
-                unsigned long pfn = page_to_pfn(f->page);
+                unsigned long pfn = page_to_pfn(skb_frag_page(f));
 
                 /* FIXME: Compute "hash_for_home" properly. */
                 /* ISSUE: The hypervisor checks CHIP_HAS_REV1_DMA_PACKETS(). */
@@ -1706,7 +1706,7 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags,
                 /* FIXME: Hmmm. */
                 if (!hash_default) {
                         void *va = pfn_to_kaddr(pfn) + f->page_offset;
-                        BUG_ON(PageHighMem(f->page));
+                        BUG_ON(PageHighMem(skb_frag_page(f)));
                         finv_buffer_remote(va, f->size, 0);
                 }
 
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 6c543b19fdb1..dbdca225b846 100644
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -1659,6 +1659,10 @@ static const struct usb_device_id	products [] = {
         // ASIX 88772a
         USB_DEVICE(0x0db0, 0xa877),
         .driver_info = (unsigned long) &ax88772_info,
+}, {
+        // Asus USB Ethernet Adapter
+        USB_DEVICE (0x0b95, 0x7e2b),
+        .driver_info = (unsigned long) &ax88772_info,
 },
         { },            // END
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index 66e1b9fa0b8b..3cf62c363bc0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -1205,9 +1205,7 @@ static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
         iwl_print_hex_dump(trans, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
 
         /* Set up entry for this TFD in Tx byte-count array */
-        if (is_agg)
-                iwl_trans_txq_update_byte_cnt_tbl(trans, txq,
-                                               le16_to_cpu(tx_cmd->len));
+        iwl_trans_txq_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len));
 
         dma_sync_single_for_device(bus(trans)->dev, txcmd_phys, firstlen,
                         DMA_BIDIRECTIONAL);
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 19c0115092dd..0f0cfa3bca30 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -26,11 +26,6 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 
-/* For archs that don't support NO_IRQ (such as x86), provide a dummy value */
-#ifndef NO_IRQ
-#define NO_IRQ 0
-#endif
-
 /**
  * irq_of_parse_and_map - Parse and map an interrupt into linux virq space
  * @device: Device node of the device whose interrupt is to be mapped
@@ -44,7 +39,7 @@ unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
         struct of_irq oirq;
 
         if (of_irq_map_one(dev, index, &oirq))
-                return NO_IRQ;
+                return 0;
 
         return irq_create_of_mapping(oirq.controller, oirq.specifier,
                                      oirq.size);
@@ -345,7 +340,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
 
         /* Only dereference the resource if both the
          * resource and the irq are valid. */
-        if (r && irq != NO_IRQ) {
+        if (r && irq) {
                 r->start = r->end = irq;
                 r->flags = IORESOURCE_IRQ;
                 r->name = dev->full_name;
@@ -363,7 +358,7 @@ int of_irq_count(struct device_node *dev)
 {
         int nr = 0;
 
-        while (of_irq_to_resource(dev, nr, NULL) != NO_IRQ)
+        while (of_irq_to_resource(dev, nr, NULL))
                 nr++;
 
         return nr;
@@ -383,7 +378,7 @@ int of_irq_to_resource_table(struct device_node *dev, struct resource *res,
         int i;
 
         for (i = 0; i < nr_irqs; i++, res++)
-                if (of_irq_to_resource(dev, i, res) == NO_IRQ)
+                if (!of_irq_to_resource(dev, i, res))
                         break;
 
         return i;
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index 89f63456646f..84a208dbed93 100644
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -45,7 +45,7 @@ static ssize_t timeout_write(struct file *file, char const __user *buf,
                 return -EINVAL;
 
         retval = oprofilefs_ulong_from_user(&val, buf, count);
-        if (retval)
+        if (retval <= 0)
                 return retval;
 
         retval = oprofile_set_timeout(val);
@@ -84,7 +84,7 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou
                 return -EINVAL;
 
         retval = oprofilefs_ulong_from_user(&val, buf, count);
-        if (retval)
+        if (retval <= 0)
                 return retval;
 
         retval = oprofile_set_ulong(&oprofile_backtrace_depth, val);
@@ -141,9 +141,10 @@ static ssize_t enable_write(struct file *file, char const __user *buf, size_t co
                 return -EINVAL;
 
         retval = oprofilefs_ulong_from_user(&val, buf, count);
-        if (retval)
+        if (retval <= 0)
                 return retval;
 
+        retval = 0;
         if (val)
                 retval = oprofile_start();
         else
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index d0de6cc2d7a5..2f0aa0f700e6 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -60,6 +60,13 @@ ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user *buf, size_t cou
 }
 
 
+/*
+ * Note: If oprofilefs_ulong_from_user() returns 0, then *val remains
+ * unchanged and might be uninitialized. This follows write syscall
+ * implementation when count is zero: "If count is zero ... [and if]
+ * no errors are detected, 0 will be returned without causing any
+ * other effect." (man 2 write)
+ */
 int oprofilefs_ulong_from_user(unsigned long *val, char const __user *buf, size_t count)
 {
         char tmpbuf[TMPBUFSIZE];
@@ -79,7 +86,7 @@ int oprofilefs_ulong_from_user(unsigned long *val, char const __user *buf, size_
         raw_spin_lock_irqsave(&oprofilefs_lock, flags);
         *val = simple_strtoul(tmpbuf, NULL, 0);
         raw_spin_unlock_irqrestore(&oprofilefs_lock, flags);
-        return 0;
+        return count;
 }
 
 
@@ -99,7 +106,7 @@ static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_
                 return -EINVAL;
 
         retval = oprofilefs_ulong_from_user(&value, buf, count);
-        if (retval)
+        if (retval <= 0)
                 return retval;
 
         retval = oprofile_set_ulong(file->private_data, value);
diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index 7ec56fb0bd78..b0dd08e6a9da 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -13,6 +13,7 @@
 #include <linux/export.h>
 #include <linux/pci-ats.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 
 #include "pci.h"
 
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index fce1c54a0c8d..9ddf69e3bbef 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -132,6 +132,18 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
         if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle))
                 return AE_OK;
 
+        pdev = pbus->self;
+        if (pdev && pci_is_pcie(pdev)) {
+                tmp = acpi_find_root_bridge_handle(pdev);
+                if (tmp) {
+                        struct acpi_pci_root *root = acpi_pci_find_root(tmp);
+
+                        if (root && (root->osc_control_set &
+                                        OSC_PCI_EXPRESS_NATIVE_HP_CONTROL))
+                                return AE_OK;
+                }
+        }
+
         acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
         device = (adr >> 16) & 0xffff;
         function = adr & 0xffff;
@@ -213,7 +225,6 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
 
         pdev = pci_get_slot(pbus, PCI_DEVFN(device, function));
         if (pdev) {
-                pdev->current_state = PCI_D0;
                 slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
                 pci_dev_put(pdev);
         }
@@ -459,17 +470,8 @@ static int add_bridge(acpi_handle handle)
 {
         acpi_status status;
         unsigned long long tmp;
-        struct acpi_pci_root *root;
         acpi_handle dummy_handle;
 
-        /*
-         * We shouldn't use this bridge if PCIe native hotplug control has been
-         * granted by the BIOS for it.
-         */
-        root = acpi_pci_find_root(handle);
-        if (root && (root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL))
-                return -ENODEV;
-
         /* if the bridge doesn't have _STA, we assume it is always there */
         status = acpi_get_handle(handle, "_STA", &dummy_handle);
         if (ACPI_SUCCESS(status)) {
@@ -1385,19 +1387,11 @@ static void handle_hotplug_event_func(acpi_handle handle, u32 type,
 static acpi_status
 find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
-        struct acpi_pci_root *root;
         int *count = (int *)context;
 
         if (!acpi_is_root_bridge(handle))
                 return AE_OK;
 
-        root = acpi_pci_find_root(handle);
-        if (!root)
-                return AE_OK;
-
-        if (root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)
-                return AE_OK;
-
         (*count)++;
         acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
                                     handle_hotplug_event_bridge, NULL);
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index b82c155d7b37..1969a3ee3058 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -283,6 +283,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
         struct resource *res;
         struct pci_dev *pdev;
         struct pci_sriov *iov = dev->sriov;
+        int bars = 0;
 
         if (!nr_virtfn)
                 return 0;
@@ -307,6 +308,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
 
         nres = 0;
         for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
+                bars |= (1 << (i + PCI_IOV_RESOURCES));
                 res = dev->resource + PCI_IOV_RESOURCES + i;
                 if (res->parent)
                         nres++;
@@ -324,6 +326,11 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
                 return -ENOMEM;
         }
 
+        if (pci_enable_resources(dev, bars)) {
+                dev_err(&dev->dev, "SR-IOV: IOV BARS not allocated\n");
+                return -ENOMEM;
+        }
+
         if (iov->link != dev->devfn) {
                 pdev = pci_get_slot(dev->bus, iov->link);
                 if (!pdev)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6f45a73c6e9f..6d4a5319148d 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -664,6 +664,9 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
                 error = platform_pci_set_power_state(dev, state);
                 if (!error)
                         pci_update_current_state(dev, state);
+                /* Fall back to PCI_D0 if native PM is not supported */
+                if (!dev->pm_cap)
+                        dev->current_state = PCI_D0;
         } else {
                 error = -ENODEV;
                 /* Fall back to PCI_D0 if native PM is not supported */
@@ -1126,7 +1129,11 @@ static int __pci_enable_device_flags(struct pci_dev *dev,
         if (atomic_add_return(1, &dev->enable_cnt) > 1)
                 return 0;               /* already enabled */
 
-        for (i = 0; i < DEVICE_COUNT_RESOURCE; i++)
+        /* only skip sriov related */
+        for (i = 0; i <= PCI_ROM_RESOURCE; i++)
+                if (dev->resource[i].flags & flags)
+                        bars |= (1 << i);
+        for (i = PCI_BRIDGE_RESOURCES; i < DEVICE_COUNT_RESOURCE; i++)
                 if (dev->resource[i].flags & flags)
                         bars |= (1 << i);
 
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index cf3f9997546d..10451a15e828 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -101,7 +101,9 @@ static s32 scaled_ppm_to_ppb(long ppm)
 
 static int ptp_clock_getres(struct posix_clock *pc, struct timespec *tp)
 {
-        return 1; /* always round timer functions to one nanosecond */
+        tp->tv_sec = 0;
+        tp->tv_nsec = 1;
+        return 0;
 }
 
 static int ptp_clock_settime(struct posix_clock *pc, const struct timespec *tp)
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 5225930a10cd..691b1ab1a3d0 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -851,14 +851,12 @@ static int tsi721_doorbell_init(struct tsi721_device *priv)
         INIT_WORK(&priv->idb_work, tsi721_db_dpc);
 
         /* Allocate buffer for inbound doorbells queue */
-        priv->idb_base = dma_alloc_coherent(&priv->pdev->dev,
+        priv->idb_base = dma_zalloc_coherent(&priv->pdev->dev,
                                 IDB_QSIZE * TSI721_IDB_ENTRY_SIZE,
                                 &priv->idb_dma, GFP_KERNEL);
         if (!priv->idb_base)
                 return -ENOMEM;
 
-        memset(priv->idb_base, 0, IDB_QSIZE * TSI721_IDB_ENTRY_SIZE);
-
         dev_dbg(&priv->pdev->dev, "Allocated IDB buffer @ %p (phys = %llx)\n",
                 priv->idb_base, (unsigned long long)priv->idb_dma);
 
@@ -904,7 +902,7 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum)
          */
 
         /* Allocate space for DMA descriptors */
-        bd_ptr = dma_alloc_coherent(&priv->pdev->dev,
+        bd_ptr = dma_zalloc_coherent(&priv->pdev->dev,
                                         bd_num * sizeof(struct tsi721_dma_desc),
                                         &bd_phys, GFP_KERNEL);
         if (!bd_ptr)
@@ -913,8 +911,6 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum)
         priv->bdma[chnum].bd_phys = bd_phys;
         priv->bdma[chnum].bd_base = bd_ptr;
 
-        memset(bd_ptr, 0, bd_num * sizeof(struct tsi721_dma_desc));
-
         dev_dbg(&priv->pdev->dev, "DMA descriptors @ %p (phys = %llx)\n",
                 bd_ptr, (unsigned long long)bd_phys);
 
@@ -922,7 +918,7 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum)
         sts_size = (bd_num >= TSI721_DMA_MINSTSSZ) ?
                                         bd_num : TSI721_DMA_MINSTSSZ;
         sts_size = roundup_pow_of_two(sts_size);
-        sts_ptr = dma_alloc_coherent(&priv->pdev->dev,
+        sts_ptr = dma_zalloc_coherent(&priv->pdev->dev,
                                      sts_size * sizeof(struct tsi721_dma_sts),
                                      &sts_phys, GFP_KERNEL);
         if (!sts_ptr) {
@@ -938,8 +934,6 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum)
         priv->bdma[chnum].sts_base = sts_ptr;
         priv->bdma[chnum].sts_size = sts_size;
 
-        memset(sts_ptr, 0, sts_size);
-
         dev_dbg(&priv->pdev->dev,
                 "desc status FIFO @ %p (phys = %llx) size=0x%x\n",
                 sts_ptr, (unsigned long long)sts_phys, sts_size);
@@ -1400,7 +1394,7 @@ static int tsi721_open_outb_mbox(struct rio_mport *mport, void *dev_id,
 
         /* Outbound message descriptor status FIFO allocation */
         priv->omsg_ring[mbox].sts_size = roundup_pow_of_two(entries + 1);
-        priv->omsg_ring[mbox].sts_base = dma_alloc_coherent(&priv->pdev->dev,
+        priv->omsg_ring[mbox].sts_base = dma_zalloc_coherent(&priv->pdev->dev,
                         priv->omsg_ring[mbox].sts_size *
                                                 sizeof(struct tsi721_dma_sts),
                         &priv->omsg_ring[mbox].sts_phys, GFP_KERNEL);
@@ -1412,9 +1406,6 @@ static int tsi721_open_outb_mbox(struct rio_mport *mport, void *dev_id,
                 goto out_desc;
         }
 
-        memset(priv->omsg_ring[mbox].sts_base, 0,
-                entries * sizeof(struct tsi721_dma_sts));
-
         /*
          * Configure Outbound Messaging Engine
          */
@@ -2116,8 +2107,8 @@ static int __devinit tsi721_setup_mport(struct tsi721_device *priv)
         INIT_LIST_HEAD(&mport->dbells);
 
         rio_init_dbell_res(&mport->riores[RIO_DOORBELL_RESOURCE], 0, 0xffff);
-        rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 0);
-        rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 0);
+        rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 3);
+        rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 3);
         strcpy(mport->name, "Tsi721 mport");
 
         /* Hook up interrupt handler */
@@ -2163,7 +2154,7 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
                                   const struct pci_device_id *id)
 {
         struct tsi721_device *priv;
-        int i;
+        int i, cap;
         int err;
         u32 regval;
 
@@ -2271,10 +2262,20 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
                         dev_info(&pdev->dev, "Unable to set consistent DMA mask\n");
         }
 
-        /* Clear "no snoop" and "relaxed ordering" bits. */
-        pci_read_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, &regval);
-        regval &= ~(PCI_EXP_DEVCTL_RELAX_EN | PCI_EXP_DEVCTL_NOSNOOP_EN);
-        pci_write_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, regval);
+        cap = pci_pcie_cap(pdev);
+        BUG_ON(cap == 0);
+
+        /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
+        pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL, &regval);
+        regval &= ~(PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
+                    PCI_EXP_DEVCTL_NOSNOOP_EN);
+        regval |= 0x2 << MAX_READ_REQUEST_SZ_SHIFT;
+        pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL, regval);
+
+        /* Adjust PCIe completion timeout. */
+        pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL2, &regval);
+        regval &= ~(0x0f);
+        pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL2, regval | 0x2);
 
         /*
          * FIXUP: correct offsets of MSI-X tables in the MSI-X Capability Block
diff --git a/drivers/rapidio/devices/tsi721.h b/drivers/rapidio/devices/tsi721.h
index 58be4deb1402..822e54c394d5 100644
--- a/drivers/rapidio/devices/tsi721.h
+++ b/drivers/rapidio/devices/tsi721.h
@@ -72,6 +72,8 @@
 #define TSI721_MSIXPBA_OFFSET   0x2a000
 #define TSI721_PCIECFG_EPCTL    0x400
 
+#define MAX_READ_REQUEST_SZ_SHIFT       12
+
 /*
  * Event Management Registers
  */
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index fa4d9f324189..3bcc7cfcaba7 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -73,6 +73,8 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
                 err = -EINVAL;
 
         mutex_unlock(&rtc->ops_lock);
+        /* A timer might have just expired */
+        schedule_work(&rtc->irqwork);
         return err;
 }
 EXPORT_SYMBOL_GPL(rtc_set_time);
@@ -112,6 +114,8 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs)
                 err = -EINVAL;
 
         mutex_unlock(&rtc->ops_lock);
+        /* A timer might have just expired */
+        schedule_work(&rtc->irqwork);
 
         return err;
 }
@@ -403,6 +407,8 @@ int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
                 timerqueue_add(&rtc->timerqueue, &rtc->aie_timer.node);
         }
         mutex_unlock(&rtc->ops_lock);
+        /* maybe that was in the past.*/
+        schedule_work(&rtc->irqwork);
         return err;
 }
 EXPORT_SYMBOL_GPL(rtc_initialize_alarm);
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index eda128fc1d38..64aedd8cc095 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -357,10 +357,19 @@ static int m41t80_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 static struct rtc_class_ops m41t80_rtc_ops = {
         .read_time = m41t80_rtc_read_time,
         .set_time = m41t80_rtc_set_time,
+        /*
+         * XXX - m41t80 alarm functionality is reported broken.
+         * until it is fixed, don't register alarm functions.
+         *
         .read_alarm = m41t80_rtc_read_alarm,
         .set_alarm = m41t80_rtc_set_alarm,
+        */
         .proc = m41t80_rtc_proc,
+        /*
+         * See above comment on broken alarm
+         *
         .alarm_irq_enable = m41t80_rtc_alarm_irq_enable,
+        */
 };
 
 #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE)
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 7639ab906f02..5b979d9cc332 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -202,7 +202,6 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
         void __iomem *base = s3c_rtc_base;
         int year = tm->tm_year - 100;
 
-        clk_enable(rtc_clk);
         pr_debug("set time %04d.%02d.%02d %02d:%02d:%02d\n",
                  1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
                  tm->tm_hour, tm->tm_min, tm->tm_sec);
@@ -214,6 +213,7 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
                 return -EINVAL;
         }
 
+        clk_enable(rtc_clk);
         writeb(bin2bcd(tm->tm_sec),  base + S3C2410_RTCSEC);
         writeb(bin2bcd(tm->tm_min),  base + S3C2410_RTCMIN);
         writeb(bin2bcd(tm->tm_hour), base + S3C2410_RTCHOUR);
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 11f07f888223..b79576b64f45 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -55,6 +55,10 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdev)
 {
         struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
 
+        /* if previous slave_alloc returned early, there is nothing to do */
+        if (!zfcp_sdev->port)
+                return;
+
         zfcp_erp_lun_shutdown_wait(sdev, "scssd_1");
         put_device(&zfcp_sdev->port->dev);
 }
diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
index 5f94d22c491e..542668292900 100644
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -233,13 +233,9 @@ int bbc_i2c_write_buf(struct bbc_i2c_client *client,
         int ret = 0;
 
         while (len > 0) {
-                int err = bbc_i2c_writeb(client, *buf, off);
-
-                if (err < 0) {
-                        ret = err;
+                ret = bbc_i2c_writeb(client, *buf, off);
+                if (ret < 0)
                         break;
-                }
-
                 len--;
                 buf++;
                 off++;
@@ -253,11 +249,9 @@ int bbc_i2c_read_buf(struct bbc_i2c_client *client,
         int ret = 0;
 
         while (len > 0) {
-                int err = bbc_i2c_readb(client, buf, off);
-                if (err < 0) {
-                        ret = err;
+                ret = bbc_i2c_readb(client, buf, off);
+                if (ret < 0)
                         break;
-                }
                 len--;
                 buf++;
                 off++;
@@ -422,17 +416,6 @@ static struct platform_driver bbc_i2c_driver = {
         .remove         = __devexit_p(bbc_i2c_remove),
 };
 
-static int __init bbc_i2c_init(void)
-{
-        return platform_driver_register(&bbc_i2c_driver);
-}
-
-static void __exit bbc_i2c_exit(void)
-{
-        platform_driver_unregister(&bbc_i2c_driver);
-}
-
-module_init(bbc_i2c_init);
-module_exit(bbc_i2c_exit);
+module_platform_driver(bbc_i2c_driver);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 965a1fccd66a..4b9939726c34 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -275,15 +275,4 @@ static struct platform_driver d7s_driver = {
         .remove         = __devexit_p(d7s_remove),
 };
 
-static int __init d7s_init(void)
-{
-        return platform_driver_register(&d7s_driver);
-}
-
-static void __exit d7s_exit(void)
-{
-        platform_driver_unregister(&d7s_driver);
-}
-
-module_init(d7s_init);
-module_exit(d7s_exit);
+module_platform_driver(d7s_driver);
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index be7b4e56154f..339fd6f65eda 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -1138,16 +1138,6 @@ static struct platform_driver envctrl_driver = {
         .remove         = __devexit_p(envctrl_remove),
 };
 
-static int __init envctrl_init(void)
-{
-        return platform_driver_register(&envctrl_driver);
-}
-
-static void __exit envctrl_exit(void)
-{
-        platform_driver_unregister(&envctrl_driver);
-}
+module_platform_driver(envctrl_driver);
 
-module_init(envctrl_init);
-module_exit(envctrl_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c
index 73dd4e7afaaa..826157f38694 100644
--- a/drivers/sbus/char/flash.c
+++ b/drivers/sbus/char/flash.c
@@ -216,16 +216,6 @@ static struct platform_driver flash_driver = {
         .remove         = __devexit_p(flash_remove),
 };
 
-static int __init flash_init(void)
-{
-        return platform_driver_register(&flash_driver);
-}
-
-static void __exit flash_cleanup(void)
-{
-        platform_driver_unregister(&flash_driver);
-}
+module_platform_driver(flash_driver);
 
-module_init(flash_init);
-module_exit(flash_cleanup);
 MODULE_LICENSE("GPL");
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index ebce9639a26a..0b31658ccde5 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -435,16 +435,6 @@ static struct platform_driver uctrl_driver = {
 };
 
 
-static int __init uctrl_init(void)
-{
-        return platform_driver_register(&uctrl_driver);
-}
-
-static void __exit uctrl_exit(void)
-{
-        platform_driver_unregister(&uctrl_driver);
-}
+module_platform_driver(uctrl_driver);
 
-module_init(uctrl_init);
-module_exit(uctrl_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index dba72a4e6a1c..1ad0b8225560 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -1906,18 +1906,19 @@ static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session,
         spin_lock(&session->lock);
         task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data,
                                  cqe->itt & ISCSI_CMD_RESPONSE_INDEX);
-        if (!task) {
+        if (!task || !task->sc) {
                 spin_unlock(&session->lock);
                 return -EINVAL;
         }
         sc = task->sc;
-        spin_unlock(&session->lock);
 
         if (!blk_rq_cpu_valid(sc->request))
                 cpu = smp_processor_id();
         else
                 cpu = sc->request->cpu;
 
+        spin_unlock(&session->lock);
+
         p = &per_cpu(bnx2i_percpu, cpu);
         spin_lock(&p->p_work_lock);
         if (unlikely(!p->iothread)) {
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index cefbe44bb84a..8d67467dd9ce 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -31,6 +31,8 @@
 #include <linux/sysfs.h>
 #include <linux/ctype.h>
 #include <linux/workqueue.h>
+#include <net/dcbnl.h>
+#include <net/dcbevent.h>
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
 #include <scsi/scsi_transport.h>
@@ -101,6 +103,8 @@ static int fcoe_ddp_done(struct fc_lport *, u16);
 static int fcoe_ddp_target(struct fc_lport *, u16, struct scatterlist *,
                            unsigned int);
 static int fcoe_cpu_callback(struct notifier_block *, unsigned long, void *);
+static int fcoe_dcb_app_notification(struct notifier_block *notifier,
+                                     ulong event, void *ptr);
 
 static bool fcoe_match(struct net_device *netdev);
 static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode);
@@ -129,6 +133,11 @@ static struct notifier_block fcoe_cpu_notifier = {
         .notifier_call = fcoe_cpu_callback,
 };
 
+/* notification function for DCB events */
+static struct notifier_block dcb_notifier = {
+        .notifier_call = fcoe_dcb_app_notification,
+};
+
 static struct scsi_transport_template *fcoe_nport_scsi_transport;
 static struct scsi_transport_template *fcoe_vport_scsi_transport;
 
@@ -1522,6 +1531,8 @@ int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp)
         skb_reset_network_header(skb);
         skb->mac_len = elen;
         skb->protocol = htons(ETH_P_FCOE);
+        skb->priority = port->priority;
+
         if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN &&
             fcoe->realdev->features & NETIF_F_HW_VLAN_TX) {
                 skb->vlan_tci = VLAN_TAG_PRESENT |
@@ -1624,6 +1635,7 @@ static inline int fcoe_filter_frames(struct fc_lport *lport,
         stats->InvalidCRCCount++;
         if (stats->InvalidCRCCount < 5)
                 printk(KERN_WARNING "fcoe: dropping frame with CRC error\n");
+        put_cpu();
         return -EINVAL;
 }
 
@@ -1746,6 +1758,7 @@ int fcoe_percpu_receive_thread(void *arg)
  */
 static void fcoe_dev_setup(void)
 {
+        register_dcbevent_notifier(&dcb_notifier);
         register_netdevice_notifier(&fcoe_notifier);
 }
 
@@ -1754,9 +1767,69 @@ static void fcoe_dev_setup(void)
  */
 static void fcoe_dev_cleanup(void)
 {
+        unregister_dcbevent_notifier(&dcb_notifier);
         unregister_netdevice_notifier(&fcoe_notifier);
 }
 
+static struct fcoe_interface *
+fcoe_hostlist_lookup_realdev_port(struct net_device *netdev)
+{
+        struct fcoe_interface *fcoe;
+        struct net_device *real_dev;
+
+        list_for_each_entry(fcoe, &fcoe_hostlist, list) {
+                if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN)
+                        real_dev = vlan_dev_real_dev(fcoe->netdev);
+                else
+                        real_dev = fcoe->netdev;
+
+                if (netdev == real_dev)
+                        return fcoe;
+        }
+        return NULL;
+}
+
+static int fcoe_dcb_app_notification(struct notifier_block *notifier,
+                                     ulong event, void *ptr)
+{
+        struct dcb_app_type *entry = ptr;
+        struct fcoe_interface *fcoe;
+        struct net_device *netdev;
+        struct fcoe_port *port;
+        int prio;
+
+        if (entry->app.selector != DCB_APP_IDTYPE_ETHTYPE)
+                return NOTIFY_OK;
+
+        netdev = dev_get_by_index(&init_net, entry->ifindex);
+        if (!netdev)
+                return NOTIFY_OK;
+
+        fcoe = fcoe_hostlist_lookup_realdev_port(netdev);
+        dev_put(netdev);
+        if (!fcoe)
+                return NOTIFY_OK;
+
+        if (entry->dcbx & DCB_CAP_DCBX_VER_CEE)
+                prio = ffs(entry->app.priority) - 1;
+        else
+                prio = entry->app.priority;
+
+        if (prio < 0)
+                return NOTIFY_OK;
+
+        if (entry->app.protocol == ETH_P_FIP ||
+            entry->app.protocol == ETH_P_FCOE)
+                fcoe->ctlr.priority = prio;
+
+        if (entry->app.protocol == ETH_P_FCOE) {
+                port = lport_priv(fcoe->ctlr.lp);
+                port->priority = prio;
+        }
+
+        return NOTIFY_OK;
+}
+
 /**
  * fcoe_device_notification() - Handler for net device events
  * @notifier: The context of the notification
@@ -1965,6 +2038,46 @@ static bool fcoe_match(struct net_device *netdev)
 }
 
 /**
+ * fcoe_dcb_create() - Initialize DCB attributes and hooks
+ * @netdev: The net_device object of the L2 link that should be queried
+ * @port: The fcoe_port to bind FCoE APP priority with
+ * @
+ */
+static void fcoe_dcb_create(struct fcoe_interface *fcoe)
+{
+#ifdef CONFIG_DCB
+        int dcbx;
+        u8 fup, up;
+        struct net_device *netdev = fcoe->realdev;
+        struct fcoe_port *port = lport_priv(fcoe->ctlr.lp);
+        struct dcb_app app = {
+                                .priority = 0,
+                                .protocol = ETH_P_FCOE
+                             };
+
+        /* setup DCB priority attributes. */
+        if (netdev && netdev->dcbnl_ops && netdev->dcbnl_ops->getdcbx) {
+                dcbx = netdev->dcbnl_ops->getdcbx(netdev);
+
+                if (dcbx & DCB_CAP_DCBX_VER_IEEE) {
+                        app.selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE;
+                        up = dcb_ieee_getapp_mask(netdev, &app);
+                        app.protocol = ETH_P_FIP;
+                        fup = dcb_ieee_getapp_mask(netdev, &app);
+                } else {
+                        app.selector = DCB_APP_IDTYPE_ETHTYPE;
+                        up = dcb_getapp(netdev, &app);
+                        app.protocol = ETH_P_FIP;
+                        fup = dcb_getapp(netdev, &app);
+                }
+
+                port->priority = ffs(up) ? ffs(up) - 1 : 0;
+                fcoe->ctlr.priority = ffs(fup) ? ffs(fup) - 1 : port->priority;
+        }
+#endif
+}
+
+/**
  * fcoe_create() - Create a fcoe interface
  * @netdev  : The net_device object the Ethernet interface to create on
  * @fip_mode: The FIP mode for this creation
@@ -2007,6 +2120,9 @@ static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode)
         /* Make this the "master" N_Port */
         fcoe->ctlr.lp = lport;
 
+        /* setup DCB priority attributes. */
+        fcoe_dcb_create(fcoe);
+
         /* add to lports list */
         fcoe_hostlist_add(lport);
 
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index c74c4b8e71ef..e7522dcc296e 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -320,6 +320,7 @@ static void fcoe_ctlr_solicit(struct fcoe_ctlr *fip, struct fcoe_fcf *fcf)
 
         skb_put(skb, sizeof(*sol));
         skb->protocol = htons(ETH_P_FIP);
+        skb->priority = fip->priority;
         skb_reset_mac_header(skb);
         skb_reset_network_header(skb);
         fip->send(fip, skb);
@@ -474,6 +475,7 @@ static void fcoe_ctlr_send_keep_alive(struct fcoe_ctlr *fip,
         }
         skb_put(skb, len);
         skb->protocol = htons(ETH_P_FIP);
+        skb->priority = fip->priority;
         skb_reset_mac_header(skb);
         skb_reset_network_header(skb);
         fip->send(fip, skb);
@@ -566,6 +568,7 @@ static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip, struct fc_lport *lport,
         cap->fip.fip_dl_len = htons(dlen / FIP_BPW);
 
         skb->protocol = htons(ETH_P_FIP);
+        skb->priority = fip->priority;
         skb_reset_mac_header(skb);
         skb_reset_network_header(skb);
         return 0;
@@ -1911,6 +1914,7 @@ static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip,
 
         skb_put(skb, len);
         skb->protocol = htons(ETH_P_FIP);
+        skb->priority = fip->priority;
         skb_reset_mac_header(skb);
         skb_reset_network_header(skb);
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 4e041f6d808c..d570573b7963 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -4335,7 +4335,7 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
         /* insert into event log */
         sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
              sizeof(Mpi2EventDataSasDeviceStatusChange_t);
-        event_reply = kzalloc(sz, GFP_KERNEL);
+        event_reply = kzalloc(sz, GFP_ATOMIC);
         if (!event_reply) {
                 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
                     ioc->name, __FILE__, __LINE__, __func__);
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index ac326c41e931..6465dae5883a 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1762,12 +1762,31 @@ qla2x00_get_host_port_state(struct Scsi_Host *shost)
         scsi_qla_host_t *vha = shost_priv(shost);
         struct scsi_qla_host *base_vha = pci_get_drvdata(vha->hw->pdev);
 
-        if (!base_vha->flags.online)
+        if (!base_vha->flags.online) {
                 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
-        else if (atomic_read(&base_vha->loop_state) == LOOP_TIMEOUT)
-                fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
-        else
+                return;
+        }
+
+        switch (atomic_read(&base_vha->loop_state)) {
+        case LOOP_UPDATE:
+                fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS;
+                break;
+        case LOOP_DOWN:
+                if (test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags))
+                        fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS;
+                else
+                        fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
+                break;
+        case LOOP_DEAD:
+                fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
+                break;
+        case LOOP_READY:
                 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
+                break;
+        default:
+                fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
+                break;
+        }
 }
 
 static int
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 9df4787715c0..f3cddd5800c3 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -12,17 +12,17 @@
  * |             Level            |   Last Value Used  |     Holes      |
  * ----------------------------------------------------------------------
  * | Module Init and Probe        |       0x0116       |                |
- * | Mailbox commands             |       0x1129       |                |
+ * | Mailbox commands             |       0x112b       |                |
  * | Device Discovery             |       0x2083       |                |
  * | Queue Command and IO tracing |       0x302e       |     0x3008     |
  * | DPC Thread                   |       0x401c       |                |
  * | Async Events                 |       0x5059       |                |
- * | Timer Routines               |       0x600d       |                |
+ * | Timer Routines               |       0x6010       | 0x600e,0x600f  |
  * | User Space Interactions      |       0x709d       |                |
- * | Task Management              |       0x8041       |                |
+ * | Task Management              |       0x8041       | 0x800b         |
  * | AER/EEH                      |       0x900f       |                |
  * | Virtual Port                 |       0xa007       |                |
- * | ISP82XX Specific             |       0xb051       |                |
+ * | ISP82XX Specific             |       0xb052       |                |
  * | MultiQ                       |       0xc00b       |                |
  * | Misc                         |       0xd00b       |                |
  * ----------------------------------------------------------------------
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index ce32d8135c9e..c0c11afb685c 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -578,6 +578,7 @@ extern int qla82xx_check_md_needed(scsi_qla_host_t *);
 extern void qla82xx_chip_reset_cleanup(scsi_qla_host_t *);
 extern int qla82xx_mbx_beacon_ctl(scsi_qla_host_t *, int);
 extern char *qdev_state(uint32_t);
+extern void qla82xx_clear_pending_mbx(scsi_qla_host_t *);
 
 /* BSG related functions */
 extern int qla24xx_bsg_request(struct fc_bsg_job *);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index f03e915f1877..54ea68cec4c5 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1509,7 +1509,8 @@ enable_82xx_npiv:
                                     &ha->fw_xcb_count, NULL, NULL,
                                     &ha->max_npiv_vports, NULL);
 
-                                if (!fw_major_version && ql2xallocfwdump)
+                                if (!fw_major_version && ql2xallocfwdump
+                                    && !IS_QLA82XX(ha))
                                         qla2x00_alloc_fw_dump(vha);
                         }
                 } else {
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index dbec89622a0f..a4b267e60a35 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -120,11 +120,10 @@ qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
  * Returns a pointer to the continuation type 1 IOCB packet.
  */
 static inline cont_a64_entry_t *
-qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha)
+qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
 {
         cont_a64_entry_t *cont_pkt;
 
-        struct req_que *req = vha->req;
         /* Adjust ring index. */
         req->ring_index++;
         if (req->ring_index == req->length) {
@@ -292,7 +291,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
                          * Five DSDs are available in the Continuation
                          * Type 1 IOCB.
                          */
-                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
+                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
                         cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
                         avail_dsds = 5;
                 }
@@ -684,7 +683,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
                          * Five DSDs are available in the Continuation
                          * Type 1 IOCB.
                          */
-                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
+                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
                         cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
                         avail_dsds = 5;
                 }
@@ -2070,7 +2069,8 @@ qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
                         * Five DSDs are available in the Cont.
                         * Type 1 IOCB.
                                */
-                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
+                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
+                            vha->hw->req_q_map[0]);
                         cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
                         avail_dsds = 5;
                         cont_iocb_prsnt = 1;
@@ -2096,6 +2096,7 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
         int index;
         uint16_t tot_dsds;
         scsi_qla_host_t *vha = sp->fcport->vha;
+        struct qla_hw_data *ha = vha->hw;
         struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job;
         int loop_iterartion = 0;
         int cont_iocb_prsnt = 0;
@@ -2141,7 +2142,8 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
                         * Five DSDs are available in the Cont.
                         * Type 1 IOCB.
                                */
-                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
+                        cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
+                            ha->req_q_map[0]);
                         cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
                         avail_dsds = 5;
                         cont_iocb_prsnt = 1;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 2516adf1aeea..7b91b290ffd6 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1741,7 +1741,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
                                     resid, scsi_bufflen(cp));
 
                                 cp->result = DID_ERROR << 16 | lscsi_status;
-                                break;
+                                goto check_scsi_status;
                         }
 
                         if (!lscsi_status &&
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 3b3cec9f6ac2..82a33533ed26 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -79,8 +79,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
                 mcp->mb[0] = MBS_LINK_DOWN_ERROR;
                 ql_log(ql_log_warn, base_vha, 0x1004,
                     "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
-                rval = QLA_FUNCTION_FAILED;
-                goto premature_exit;
+                return QLA_FUNCTION_TIMEOUT;
         }
 
         /*
@@ -163,6 +162,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
                                 HINT_MBX_INT_PENDING) {
                                 spin_unlock_irqrestore(&ha->hardware_lock,
                                         flags);
+                                ha->flags.mbox_busy = 0;
                                 ql_dbg(ql_dbg_mbx, base_vha, 0x1010,
                                     "Pending mailbox timeout, exiting.\n");
                                 rval = QLA_FUNCTION_TIMEOUT;
@@ -188,6 +188,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
                                 HINT_MBX_INT_PENDING) {
                                 spin_unlock_irqrestore(&ha->hardware_lock,
                                         flags);
+                                ha->flags.mbox_busy = 0;
                                 ql_dbg(ql_dbg_mbx, base_vha, 0x1012,
                                     "Pending mailbox timeout, exiting.\n");
                                 rval = QLA_FUNCTION_TIMEOUT;
@@ -302,7 +303,15 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
-
+                                if (IS_QLA82XX(ha)) {
+                                        ql_dbg(ql_dbg_mbx, vha, 0x112a,
+                                            "disabling pause transmit on port "
+                                            "0 & 1.\n");
+                                        qla82xx_wr_32(ha,
+                                            QLA82XX_CRB_NIU + 0x98,
+                                            CRB_NIU_XG_PAUSE_CTL_P0|
+                                            CRB_NIU_XG_PAUSE_CTL_P1);
+                                }
                                 ql_log(ql_log_info, base_vha, 0x101c,
                                     "Mailbox cmd timeout occured. "
                                     "Scheduling ISP abort eeh_busy=0x%x.\n",
@@ -318,7 +327,15 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
                         if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
                             !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
                             !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
-
+                                if (IS_QLA82XX(ha)) {
+                                        ql_dbg(ql_dbg_mbx, vha, 0x112b,
+                                            "disabling pause transmit on port "
+                                            "0 & 1.\n");
+                                        qla82xx_wr_32(ha,
+                                            QLA82XX_CRB_NIU + 0x98,
+                                            CRB_NIU_XG_PAUSE_CTL_P0|
+                                            CRB_NIU_XG_PAUSE_CTL_P1);
+                                }
                                 ql_log(ql_log_info, base_vha, 0x101e,
                                     "Mailbox cmd timeout occured. "
                                     "Scheduling ISP abort.\n");
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 94bded5ddce4..03554934b0a5 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -3817,6 +3817,20 @@ exit:
         return rval;
 }
 
+void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
+{
+        struct qla_hw_data *ha = vha->hw;
+
+        if (ha->flags.mbox_busy) {
+                ha->flags.mbox_int = 1;
+                ha->flags.mbox_busy = 0;
+                ql_log(ql_log_warn, vha, 0x6010,
+                    "Doing premature completion of mbx command.\n");
+                if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
+                        complete(&ha->mbx_intr_comp);
+        }
+}
+
 void qla82xx_watchdog(scsi_qla_host_t *vha)
 {
         uint32_t dev_state, halt_status;
@@ -3839,9 +3853,13 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
                         qla2xxx_wake_dpc(vha);
                 } else {
                         if (qla82xx_check_fw_alive(vha)) {
+                                ql_dbg(ql_dbg_timer, vha, 0x6011,
+                                    "disabling pause transmit on port 0 & 1.\n");
+                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
+                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
                                 halt_status = qla82xx_rd_32(ha,
                                     QLA82XX_PEG_HALT_STATUS1);
-                                ql_dbg(ql_dbg_timer, vha, 0x6005,
+                                ql_log(ql_log_info, vha, 0x6005,
                                     "dumping hw/fw registers:.\n "
                                     " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
                                     " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
@@ -3858,6 +3876,11 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
                                             QLA82XX_CRB_PEG_NET_3 + 0x3c),
                                     qla82xx_rd_32(ha,
                                             QLA82XX_CRB_PEG_NET_4 + 0x3c));
+                                if (LSW(MSB(halt_status)) == 0x67)
+                                        ql_log(ql_log_warn, vha, 0xb052,
+                                            "Firmware aborted with "
+                                            "error code 0x00006700. Device is "
+                                            "being reset.\n");
                                 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
                                         set_bit(ISP_UNRECOVERABLE,
                                             &vha->dpc_flags);
@@ -3869,16 +3892,8 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
                                 }
                                 qla2xxx_wake_dpc(vha);
                                 ha->flags.isp82xx_fw_hung = 1;
-                                if (ha->flags.mbox_busy) {
-                                        ha->flags.mbox_int = 1;
-                                        ql_log(ql_log_warn, vha, 0x6007,
-                                            "Due to FW hung, doing "
-                                            "premature completion of mbx "
-                                            "command.\n");
-                                        if (test_bit(MBX_INTR_WAIT,
-                                            &ha->mbx_cmd_flags))
-                                                complete(&ha->mbx_intr_comp);
-                                }
+                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
+                                qla82xx_clear_pending_mbx(vha);
                         }
                 }
         }
@@ -4073,10 +4088,7 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
                         msleep(1000);
                         if (qla82xx_check_fw_alive(vha)) {
                                 ha->flags.isp82xx_fw_hung = 1;
-                                if (ha->flags.mbox_busy) {
-                                        ha->flags.mbox_int = 1;
-                                        complete(&ha->mbx_intr_comp);
-                                }
+                                qla82xx_clear_pending_mbx(vha);
                                 break;
                         }
                 }
diff --git a/drivers/scsi/qla2xxx/qla_nx.h b/drivers/scsi/qla2xxx/qla_nx.h
index 57820c199bc2..57a226be339a 100644
--- a/drivers/scsi/qla2xxx/qla_nx.h
+++ b/drivers/scsi/qla2xxx/qla_nx.h
@@ -1173,4 +1173,8 @@ struct qla82xx_md_entry_queue {
 
 static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8, 0x410000AC,
         0x410000B8, 0x410000BC };
+
+#define CRB_NIU_XG_PAUSE_CTL_P0        0x1
+#define CRB_NIU_XG_PAUSE_CTL_P1        0x8
+
 #endif
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index fd14c7bfc626..f9e5b85e84d8 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -201,12 +201,12 @@ MODULE_PARM_DESC(ql2xmdcapmask,
                 "Set the Minidump driver capture mask level. "
                 "Default is 0x7F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
 
-int ql2xmdenable;
+int ql2xmdenable = 1;
 module_param(ql2xmdenable, int, S_IRUGO);
 MODULE_PARM_DESC(ql2xmdenable,
                 "Enable/disable MiniDump. "
-                "0 (Default) - MiniDump disabled. "
-                "1 - MiniDump enabled.");
+                "0 - MiniDump disabled. "
+                "1 (Default) - MiniDump enabled.");
 
 /*
  * SCSI host template entry points
@@ -423,6 +423,7 @@ fail2:
         qla25xx_delete_queues(vha);
         destroy_workqueue(ha->wq);
         ha->wq = NULL;
+        vha->req = ha->req_q_map[0];
 fail:
         ha->mqenable = 0;
         kfree(ha->req_q_map);
@@ -814,49 +815,6 @@ qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
         return return_status;
 }
 
-/*
- * qla2x00_wait_for_loop_ready
- *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
- *    to be in LOOP_READY state.
- * Input:
- *     ha - pointer to host adapter structure
- *
- * Note:
- *    Does context switching-Release SPIN_LOCK
- *    (if any) before calling this routine.
- *
- *
- * Return:
- *    Success (LOOP_READY) : 0
- *    Failed  (LOOP_NOT_READY) : 1
- */
-static inline int
-qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
-{
-        int      return_status = QLA_SUCCESS;
-        unsigned long loop_timeout ;
-        struct qla_hw_data *ha = vha->hw;
-        scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
-
-        /* wait for 5 min at the max for loop to be ready */
-        loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
-
-        while ((!atomic_read(&base_vha->loop_down_timer) &&
-            atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
-            atomic_read(&base_vha->loop_state) != LOOP_READY) {
-                if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
-                        return_status = QLA_FUNCTION_FAILED;
-                        break;
-                }
-                msleep(1000);
-                if (time_after_eq(jiffies, loop_timeout)) {
-                        return_status = QLA_FUNCTION_FAILED;
-                        break;
-                }
-        }
-        return (return_status);
-}
-
 static void
 sp_get(struct srb *sp)
 {
@@ -1035,12 +993,6 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
                     "Wait for hba online failed for cmd=%p.\n", cmd);
                 goto eh_reset_failed;
         }
-        err = 1;
-        if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS) {
-                ql_log(ql_log_warn, vha, 0x800b,
-                    "Wait for loop ready failed for cmd=%p.\n", cmd);
-                goto eh_reset_failed;
-        }
         err = 2;
         if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
                 != QLA_SUCCESS) {
@@ -1137,10 +1089,9 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
                 goto eh_bus_reset_done;
         }
 
-        if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
-                if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
-                        ret = SUCCESS;
-        }
+        if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
+                ret = SUCCESS;
+
         if (ret == FAILED)
                 goto eh_bus_reset_done;
 
@@ -1206,15 +1157,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
         if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
                 goto eh_host_reset_lock;
 
-        /*
-         * Fixme-may be dpc thread is active and processing
-         * loop_resync,so wait a while for it to
-         * be completed and then issue big hammer.Otherwise
-         * it may cause I/O failure as big hammer marks the
-         * devices as lost kicking of the port_down_timer
-         * while dpc is stuck for the mailbox to complete.
-         */
-        qla2x00_wait_for_loop_ready(vha);
         if (vha != base_vha) {
                 if (qla2x00_vp_abort_isp(vha))
                         goto eh_host_reset_lock;
@@ -1297,16 +1239,13 @@ qla2x00_loop_reset(scsi_qla_host_t *vha)
                 atomic_set(&vha->loop_state, LOOP_DOWN);
                 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
                 qla2x00_mark_all_devices_lost(vha, 0);
-                qla2x00_wait_for_loop_ready(vha);
         }
 
         if (ha->flags.enable_lip_reset) {
                 ret = qla2x00_lip_reset(vha);
-                if (ret != QLA_SUCCESS) {
+                if (ret != QLA_SUCCESS)
                         ql_dbg(ql_dbg_taskm, vha, 0x802e,
                             "lip_reset failed (%d).\n", ret);
-                } else
-                        qla2x00_wait_for_loop_ready(vha);
         }
 
         /* Issue marker command only when we are going to start the I/O */
@@ -4070,13 +4009,8 @@ qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
                 /* For ISP82XX complete any pending mailbox cmd */
                 if (IS_QLA82XX(ha)) {
                         ha->flags.isp82xx_fw_hung = 1;
-                        if (ha->flags.mbox_busy) {
-                                ha->flags.mbox_int = 1;
-                                ql_dbg(ql_dbg_aer, vha, 0x9001,
-                                    "Due to pci channel io frozen, doing premature "
-                                    "completion of mbx command.\n");
-                                complete(&ha->mbx_intr_comp);
-                        }
+                        ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
+                        qla82xx_clear_pending_mbx(vha);
                 }
                 qla2x00_free_irqs(vha);
                 pci_disable_device(pdev);
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index 13b6357c1fa2..23f33a6d52d7 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,7 +7,7 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.03.07.07-k"
+#define QLA2XXX_VERSION      "8.03.07.12-k"
 
 #define QLA_DRIVER_MAJOR_VER    8
 #define QLA_DRIVER_MINOR_VER    3
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index ace637bf254e..fd5edc6e166d 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -147,7 +147,7 @@
 #define ISCSI_ALIAS_SIZE                32      /* ISCSI Alias name size */
 #define ISCSI_NAME_SIZE                 0xE0    /* ISCSI Name size */
 
-#define QL4_SESS_RECOVERY_TMO           30      /* iSCSI session */
+#define QL4_SESS_RECOVERY_TMO           120     /* iSCSI session */
                                                 /* recovery timeout */
 
 #define LSDW(x) ((u32)((u64)(x)))
@@ -173,6 +173,8 @@
 #define ISNS_DEREG_TOV                  5
 #define HBA_ONLINE_TOV                  30
 #define DISABLE_ACB_TOV                 30
+#define IP_CONFIG_TOV                   30
+#define LOGIN_TOV                       12
 
 #define MAX_RESET_HA_RETRIES            2
 
@@ -240,6 +242,45 @@ struct ddb_entry {
 
         uint16_t fw_ddb_index;  /* DDB firmware index */
         uint32_t fw_ddb_device_state; /* F/W Device State  -- see ql4_fw.h */
+        uint16_t ddb_type;
+#define FLASH_DDB 0x01
+
+        struct dev_db_entry fw_ddb_entry;
+        int (*unblock_sess)(struct iscsi_cls_session *cls_session);
+        int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
+                          struct ddb_entry *ddb_entry, uint32_t state);
+
+        /* Driver Re-login  */
+        unsigned long flags;              /* DDB Flags */
+        uint16_t default_relogin_timeout; /*  Max time to wait for
+                                           *  relogin to complete */
+        atomic_t retry_relogin_timer;     /* Min Time between relogins
+                                           * (4000 only) */
+        atomic_t relogin_timer;           /* Max Time to wait for
+                                           * relogin to complete */
+        atomic_t relogin_retry_count;     /* Num of times relogin has been
+                                           * retried */
+        uint32_t default_time2wait;       /* Default Min time between
+                                           * relogins (+aens) */
+
+};
+
+struct qla_ddb_index {
+        struct list_head list;
+        uint16_t fw_ddb_idx;
+        struct dev_db_entry fw_ddb;
+};
+
+#define DDB_IPADDR_LEN 64
+
+struct ql4_tuple_ddb {
+        int port;
+        int tpgt;
+        char ip_addr[DDB_IPADDR_LEN];
+        char iscsi_name[ISCSI_NAME_SIZE];
+        uint16_t options;
+#define DDB_OPT_IPV6 0x0e0e
+#define DDB_OPT_IPV4 0x0f0f
 };
 
 /*
@@ -411,7 +452,7 @@ struct scsi_qla_host {
 #define AF_FW_RECOVERY                  19 /* 0x00080000 */
 #define AF_EEH_BUSY                     20 /* 0x00100000 */
 #define AF_PCI_CHANNEL_IO_PERM_FAILURE  21 /* 0x00200000 */
-
+#define AF_BUILD_DDB_LIST               22 /* 0x00400000 */
         unsigned long dpc_flags;
 
 #define DPC_RESET_HA                    1 /* 0x00000002 */
@@ -604,6 +645,7 @@ struct scsi_qla_host {
         uint16_t bootload_minor;
         uint16_t bootload_patch;
         uint16_t bootload_build;
+        uint16_t def_timeout; /* Default login timeout */
 
         uint32_t flash_state;
 #define QLFLASH_WAITING         0
@@ -623,6 +665,11 @@ struct scsi_qla_host {
         uint16_t iscsi_pci_func_cnt;
         uint8_t model_name[16];
         struct completion disable_acb_comp;
+        struct dma_pool *fw_ddb_dma_pool;
+#define DDB_DMA_BLOCK_SIZE 512
+        uint16_t pri_ddb_idx;
+        uint16_t sec_ddb_idx;
+        int is_reset;
 };
 
 struct ql4_task_data {
@@ -835,6 +882,10 @@ static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
 /*---------------------------------------------------------------------------*/
 
 /* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
+
+#define INIT_ADAPTER    0
+#define RESET_ADAPTER   1
+
 #define PRESERVE_DDB_LIST       0
 #define REBUILD_DDB_LIST        1
 
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index cbd5a20dbbd1..4ac07f882521 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -12,6 +12,7 @@
 #define MAX_PRST_DEV_DB_ENTRIES         64
 #define MIN_DISC_DEV_DB_ENTRY           MAX_PRST_DEV_DB_ENTRIES
 #define MAX_DEV_DB_ENTRIES              512
+#define MAX_DEV_DB_ENTRIES_40XX         256
 
 /*************************************************************************
  *
@@ -604,6 +605,13 @@ struct addr_ctrl_blk {
         uint8_t res14[140];     /* 274-2FF */
 };
 
+#define IP_ADDR_COUNT   4 /* Total 4 IP address supported in one interface
+                           * One IPv4, one IPv6 link local and 2 IPv6
+                           */
+
+#define IP_STATE_MASK   0x0F000000
+#define IP_STATE_SHIFT  24
+
 struct init_fw_ctrl_blk {
         struct addr_ctrl_blk pri;
 /*      struct addr_ctrl_blk sec;*/
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 160db9d5ea21..d0dd4b330206 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -13,7 +13,7 @@ struct iscsi_cls_conn;
 int qla4xxx_hw_reset(struct scsi_qla_host *ha);
 int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a);
 int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb *srb);
-int qla4xxx_initialize_adapter(struct scsi_qla_host *ha);
+int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset);
 int qla4xxx_soft_reset(struct scsi_qla_host *ha);
 irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id);
 
@@ -153,10 +153,13 @@ int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                           uint32_t *mbx_sts);
 int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t fw_ddb_index);
 int qla4xxx_send_passthru0(struct iscsi_task *task);
+void qla4xxx_free_ddb_index(struct scsi_qla_host *ha);
 int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
                           uint16_t stats_size, dma_addr_t stats_dma);
 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
                                        struct ddb_entry *ddb_entry);
+void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
+                                             struct ddb_entry *ddb_entry);
 int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
                             struct dev_db_entry *fw_ddb_entry,
                             dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index);
@@ -169,11 +172,22 @@ int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
 int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
                                      uint32_t region, uint32_t field0,
                                      uint32_t field1);
+int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index);
+void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session);
+int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session);
+int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session);
+int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
+                             struct ddb_entry *ddb_entry, uint32_t state);
+int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
+                       struct ddb_entry *ddb_entry, uint32_t state);
+void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset);
 
 /* BSG Functions */
 int qla4xxx_bsg_request(struct bsg_job *bsg_job);
 int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job);
 
+void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry);
+
 extern int ql4xextended_error_logging;
 extern int ql4xdontresethba;
 extern int ql4xenablemsix;
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 3075fbaef553..1bdfa8120ac8 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -773,22 +773,24 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha)
  * be freed so that when login happens from user space there are free DDB
  * indices available.
  **/
-static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
+void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
 {
         int max_ddbs;
         int ret;
         uint32_t idx = 0, next_idx = 0;
         uint32_t state = 0, conn_err = 0;
 
-        max_ddbs =  is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES :
+        max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
                                      MAX_DEV_DB_ENTRIES;
 
         for (idx = 0; idx < max_ddbs; idx = next_idx) {
                 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
                                               &next_idx, &state, &conn_err,
                                                 NULL, NULL);
-                if (ret == QLA_ERROR)
+                if (ret == QLA_ERROR) {
+                        next_idx++;
                         continue;
+                }
                 if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
                     state == DDB_DS_SESSION_FAILED) {
                         DEBUG2(ql4_printk(KERN_INFO, ha,
@@ -804,7 +806,6 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
         }
 }
 
-
 /**
  * qla4xxx_initialize_adapter - initiailizes hba
  * @ha: Pointer to host adapter structure.
@@ -812,7 +813,7 @@ static void qla4xxx_free_ddb_index(struct scsi_qla_host *ha)
  * This routine parforms all of the steps necessary to initialize the adapter.
  *
  **/
-int qla4xxx_initialize_adapter(struct scsi_qla_host *ha)
+int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
 {
         int status = QLA_ERROR;
 
@@ -840,7 +841,8 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha)
         if (status == QLA_ERROR)
                 goto exit_init_hba;
 
-        qla4xxx_free_ddb_index(ha);
+        if (is_reset == RESET_ADAPTER)
+                qla4xxx_build_ddb_list(ha, is_reset);
 
         set_bit(AF_ONLINE, &ha->flags);
 exit_init_hba:
@@ -855,38 +857,12 @@ exit_init_hba:
         return status;
 }
 
-/**
- * qla4xxx_process_ddb_changed - process ddb state change
- * @ha - Pointer to host adapter structure.
- * @fw_ddb_index - Firmware's device database index
- * @state - Device state
- *
- * This routine processes a Decive Database Changed AEN Event.
- **/
-int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
-                uint32_t state, uint32_t conn_err)
+int qla4xxx_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
+                       struct ddb_entry *ddb_entry, uint32_t state)
 {
-        struct ddb_entry * ddb_entry;
         uint32_t old_fw_ddb_device_state;
         int status = QLA_ERROR;
 
-        /* check for out of range index */
-        if (fw_ddb_index >= MAX_DDB_ENTRIES)
-                goto exit_ddb_event;
-
-        /* Get the corresponging ddb entry */
-        ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
-        /* Device does not currently exist in our database. */
-        if (ddb_entry == NULL) {
-                ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
-                           __func__, fw_ddb_index);
-
-                if (state == DDB_DS_NO_CONNECTION_ACTIVE)
-                        clear_bit(fw_ddb_index, ha->ddb_idx_map);
-
-                goto exit_ddb_event;
-        }
-
         old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
         DEBUG2(ql4_printk(KERN_INFO, ha,
                           "%s: DDB - old state = 0x%x, new state = 0x%x for "
@@ -900,9 +876,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                 switch (state) {
                 case DDB_DS_SESSION_ACTIVE:
                 case DDB_DS_DISCOVERY:
-                        iscsi_conn_start(ddb_entry->conn);
-                        iscsi_conn_login_event(ddb_entry->conn,
-                                               ISCSI_CONN_STATE_LOGGED_IN);
+                        ddb_entry->unblock_sess(ddb_entry->sess);
                         qla4xxx_update_session_conn_param(ha, ddb_entry);
                         status = QLA_SUCCESS;
                         break;
@@ -936,9 +910,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                 switch (state) {
                 case DDB_DS_SESSION_ACTIVE:
                 case DDB_DS_DISCOVERY:
-                        iscsi_conn_start(ddb_entry->conn);
-                        iscsi_conn_login_event(ddb_entry->conn,
-                                               ISCSI_CONN_STATE_LOGGED_IN);
+                        ddb_entry->unblock_sess(ddb_entry->sess);
                         qla4xxx_update_session_conn_param(ha, ddb_entry);
                         status = QLA_SUCCESS;
                         break;
@@ -954,7 +926,198 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                                 __func__));
                 break;
         }
+        return status;
+}
+
+void qla4xxx_arm_relogin_timer(struct ddb_entry *ddb_entry)
+{
+        /*
+         * This triggers a relogin.  After the relogin_timer
+         * expires, the relogin gets scheduled.  We must wait a
+         * minimum amount of time since receiving an 0x8014 AEN
+         * with failed device_state or a logout response before
+         * we can issue another relogin.
+         *
+         * Firmware pads this timeout: (time2wait +1).
+         * Driver retry to login should be longer than F/W.
+         * Otherwise F/W will fail
+         * set_ddb() mbx cmd with 0x4005 since it still
+         * counting down its time2wait.
+         */
+        atomic_set(&ddb_entry->relogin_timer, 0);
+        atomic_set(&ddb_entry->retry_relogin_timer,
+                   ddb_entry->default_time2wait + 4);
+
+}
+
+int qla4xxx_flash_ddb_change(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
+                             struct ddb_entry *ddb_entry, uint32_t state)
+{
+        uint32_t old_fw_ddb_device_state;
+        int status = QLA_ERROR;
+
+        old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "%s: DDB - old state = 0x%x, new state = 0x%x for "
+                          "index [%d]\n", __func__,
+                          ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
+
+        ddb_entry->fw_ddb_device_state = state;
+
+        switch (old_fw_ddb_device_state) {
+        case DDB_DS_LOGIN_IN_PROCESS:
+        case DDB_DS_NO_CONNECTION_ACTIVE:
+                switch (state) {
+                case DDB_DS_SESSION_ACTIVE:
+                        ddb_entry->unblock_sess(ddb_entry->sess);
+                        qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
+                        status = QLA_SUCCESS;
+                        break;
+                case DDB_DS_SESSION_FAILED:
+                        iscsi_block_session(ddb_entry->sess);
+                        if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
+                                qla4xxx_arm_relogin_timer(ddb_entry);
+                        status = QLA_SUCCESS;
+                        break;
+                }
+                break;
+        case DDB_DS_SESSION_ACTIVE:
+                switch (state) {
+                case DDB_DS_SESSION_FAILED:
+                        iscsi_block_session(ddb_entry->sess);
+                        if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
+                                qla4xxx_arm_relogin_timer(ddb_entry);
+                        status = QLA_SUCCESS;
+                        break;
+                }
+                break;
+        case DDB_DS_SESSION_FAILED:
+                switch (state) {
+                case DDB_DS_SESSION_ACTIVE:
+                        ddb_entry->unblock_sess(ddb_entry->sess);
+                        qla4xxx_update_session_conn_fwddb_param(ha, ddb_entry);
+                        status = QLA_SUCCESS;
+                        break;
+                case DDB_DS_SESSION_FAILED:
+                        if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
+                                qla4xxx_arm_relogin_timer(ddb_entry);
+                        status = QLA_SUCCESS;
+                        break;
+                }
+                break;
+        default:
+                DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unknown Event\n",
+                                  __func__));
+                break;
+        }
+        return status;
+}
+
+/**
+ * qla4xxx_process_ddb_changed - process ddb state change
+ * @ha - Pointer to host adapter structure.
+ * @fw_ddb_index - Firmware's device database index
+ * @state - Device state
+ *
+ * This routine processes a Decive Database Changed AEN Event.
+ **/
+int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
+                                uint32_t fw_ddb_index,
+                                uint32_t state, uint32_t conn_err)
+{
+        struct ddb_entry *ddb_entry;
+        int status = QLA_ERROR;
+
+        /* check for out of range index */
+        if (fw_ddb_index >= MAX_DDB_ENTRIES)
+                goto exit_ddb_event;
+
+        /* Get the corresponging ddb entry */
+        ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
+        /* Device does not currently exist in our database. */
+        if (ddb_entry == NULL) {
+                ql4_printk(KERN_ERR, ha, "%s: No ddb_entry at FW index [%d]\n",
+                           __func__, fw_ddb_index);
+
+                if (state == DDB_DS_NO_CONNECTION_ACTIVE)
+                        clear_bit(fw_ddb_index, ha->ddb_idx_map);
+
+                goto exit_ddb_event;
+        }
+
+        ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state);
 
 exit_ddb_event:
         return status;
 }
+
+/**
+ * qla4xxx_login_flash_ddb - Login to target (DDB)
+ * @cls_session: Pointer to the session to login
+ *
+ * This routine logins to the target.
+ * Issues setddb and conn open mbx
+ **/
+void qla4xxx_login_flash_ddb(struct iscsi_cls_session *cls_session)
+{
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+        struct dev_db_entry *fw_ddb_entry = NULL;
+        dma_addr_t fw_ddb_dma;
+        uint32_t mbx_sts = 0;
+        int ret;
+
+        sess = cls_session->dd_data;
+        ddb_entry = sess->dd_data;
+        ha =  ddb_entry->ha;
+
+        if (!test_bit(AF_LINK_UP, &ha->flags))
+                return;
+
+        if (ddb_entry->ddb_type != FLASH_DDB) {
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "Skipping login to non FLASH DB"));
+                goto exit_login;
+        }
+
+        fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+                                      &fw_ddb_dma);
+        if (fw_ddb_entry == NULL) {
+                DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
+                goto exit_login;
+        }
+
+        if (ddb_entry->fw_ddb_index == INVALID_ENTRY) {
+                ret = qla4xxx_get_ddb_index(ha, &ddb_entry->fw_ddb_index);
+                if (ret == QLA_ERROR)
+                        goto exit_login;
+
+                ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
+                ha->tot_ddbs++;
+        }
+
+        memcpy(fw_ddb_entry, &ddb_entry->fw_ddb_entry,
+               sizeof(struct dev_db_entry));
+        ddb_entry->sess->target_id = ddb_entry->fw_ddb_index;
+
+        ret = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
+                                    fw_ddb_dma, &mbx_sts);
+        if (ret == QLA_ERROR) {
+                DEBUG2(ql4_printk(KERN_ERR, ha, "Set DDB failed\n"));
+                goto exit_login;
+        }
+
+        ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS;
+        ret = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index);
+        if (ret == QLA_ERROR) {
+                ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__,
+                           sess->targetname);
+                goto exit_login;
+        }
+
+exit_login:
+        if (fw_ddb_entry)
+                dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
+}
+
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 4c2b84870392..c2593782fbbe 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -41,6 +41,16 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
                 return status;
         }
 
+        if (is_qla40XX(ha)) {
+                if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
+                        DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
+                                          "prematurely completing mbx cmd as "
+                                          "adapter removal detected\n",
+                                          ha->host_no, __func__));
+                        return status;
+                }
+        }
+
         if (is_qla8022(ha)) {
                 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
@@ -413,6 +423,7 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
         memcpy(ha->name_string, init_fw_cb->iscsi_name,
                 min(sizeof(ha->name_string),
                 sizeof(init_fw_cb->iscsi_name)));
+        ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
         /*memcpy(ha->alias, init_fw_cb->Alias,
                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 30f31b127f33..4169c8baa112 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -8,6 +8,7 @@
 #include <linux/slab.h>
 #include <linux/blkdev.h>
 #include <linux/iscsi_boot_sysfs.h>
+#include <linux/inet.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -31,6 +32,13 @@ static struct kmem_cache *srb_cachep;
 /*
  * Module parameter information and variables
  */
+int ql4xdisablesysfsboot = 1;
+module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ql4xdisablesysfsboot,
+                "Set to disable exporting boot targets to sysfs\n"
+                " 0 - Export boot targets\n"
+                " 1 - Do not export boot targets (Default)");
+
 int ql4xdontresethba = 0;
 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(ql4xdontresethba,
@@ -63,7 +71,7 @@ static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
                 "Target Session Recovery Timeout.\n"
-                " Default: 30 sec.");
+                " Default: 120 sec.");
 
 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
 /*
@@ -415,7 +423,7 @@ static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
         qla_ep = ep->dd_data;
         ha = to_qla_host(qla_ep->host);
 
-        if (adapter_up(ha))
+        if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
                 ret = 1;
 
         return ret;
@@ -975,6 +983,150 @@ static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
 
 }
 
+int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
+{
+        uint32_t mbx_sts = 0;
+        uint16_t tmp_ddb_index;
+        int ret;
+
+get_ddb_index:
+        tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
+
+        if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "Free DDB index not available\n"));
+                ret = QLA_ERROR;
+                goto exit_get_ddb_index;
+        }
+
+        if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
+                goto get_ddb_index;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "Found a free DDB index at %d\n", tmp_ddb_index));
+        ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
+        if (ret == QLA_ERROR) {
+                if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
+                        ql4_printk(KERN_INFO, ha,
+                                   "DDB index = %d not available trying next\n",
+                                   tmp_ddb_index);
+                        goto get_ddb_index;
+                }
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "Free FW DDB not available\n"));
+        }
+
+        *ddb_index = tmp_ddb_index;
+
+exit_get_ddb_index:
+        return ret;
+}
+
+static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
+                                   struct ddb_entry *ddb_entry,
+                                   char *existing_ipaddr,
+                                   char *user_ipaddr)
+{
+        uint8_t dst_ipaddr[IPv6_ADDR_LEN];
+        char formatted_ipaddr[DDB_IPADDR_LEN];
+        int status = QLA_SUCCESS, ret = 0;
+
+        if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
+                ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
+                               '\0', NULL);
+                if (ret == 0) {
+                        status = QLA_ERROR;
+                        goto out_match;
+                }
+                ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
+        } else {
+                ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
+                               '\0', NULL);
+                if (ret == 0) {
+                        status = QLA_ERROR;
+                        goto out_match;
+                }
+                ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
+        }
+
+        if (strcmp(existing_ipaddr, formatted_ipaddr))
+                status = QLA_ERROR;
+
+out_match:
+        return status;
+}
+
+static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
+                                      struct iscsi_cls_conn *cls_conn)
+{
+        int idx = 0, max_ddbs, rval;
+        struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
+        struct iscsi_session *sess, *existing_sess;
+        struct iscsi_conn *conn, *existing_conn;
+        struct ddb_entry *ddb_entry;
+
+        sess = cls_sess->dd_data;
+        conn = cls_conn->dd_data;
+
+        if (sess->targetname == NULL ||
+            conn->persistent_address == NULL ||
+            conn->persistent_port == 0)
+                return QLA_ERROR;
+
+        max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+                                     MAX_DEV_DB_ENTRIES;
+
+        for (idx = 0; idx < max_ddbs; idx++) {
+                ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+                if (ddb_entry == NULL)
+                        continue;
+
+                if (ddb_entry->ddb_type != FLASH_DDB)
+                        continue;
+
+                existing_sess = ddb_entry->sess->dd_data;
+                existing_conn = ddb_entry->conn->dd_data;
+
+                if (existing_sess->targetname == NULL ||
+                    existing_conn->persistent_address == NULL ||
+                    existing_conn->persistent_port == 0)
+                        continue;
+
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "IQN = %s User IQN = %s\n",
+                                  existing_sess->targetname,
+                                  sess->targetname));
+
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "IP = %s User IP = %s\n",
+                                  existing_conn->persistent_address,
+                                  conn->persistent_address));
+
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "Port = %d User Port = %d\n",
+                                  existing_conn->persistent_port,
+                                  conn->persistent_port));
+
+                if (strcmp(existing_sess->targetname, sess->targetname))
+                        continue;
+                rval = qla4xxx_match_ipaddress(ha, ddb_entry,
+                                        existing_conn->persistent_address,
+                                        conn->persistent_address);
+                if (rval == QLA_ERROR)
+                        continue;
+                if (existing_conn->persistent_port != conn->persistent_port)
+                        continue;
+                break;
+        }
+
+        if (idx == max_ddbs)
+                return QLA_ERROR;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "Match found in fwdb sessions\n"));
+        return QLA_SUCCESS;
+}
+
 static struct iscsi_cls_session *
 qla4xxx_session_create(struct iscsi_endpoint *ep,
                         uint16_t cmds_max, uint16_t qdepth,
@@ -984,8 +1136,7 @@ qla4xxx_session_create(struct iscsi_endpoint *ep,
         struct scsi_qla_host *ha;
         struct qla_endpoint *qla_ep;
         struct ddb_entry *ddb_entry;
-        uint32_t ddb_index;
-        uint32_t mbx_sts = 0;
+        uint16_t ddb_index;
         struct iscsi_session *sess;
         struct sockaddr *dst_addr;
         int ret;
@@ -1000,32 +1151,9 @@ qla4xxx_session_create(struct iscsi_endpoint *ep,
         dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
         ha = to_qla_host(qla_ep->host);
 
-get_ddb_index:
-        ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
-
-        if (ddb_index >= MAX_DDB_ENTRIES) {
-                DEBUG2(ql4_printk(KERN_INFO, ha,
-                                  "Free DDB index not available\n"));
-                return NULL;
-        }
-
-        if (test_and_set_bit(ddb_index, ha->ddb_idx_map))
-                goto get_ddb_index;
-
-        DEBUG2(ql4_printk(KERN_INFO, ha,
-                          "Found a free DDB index at %d\n", ddb_index));
-        ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts);
-        if (ret == QLA_ERROR) {
-                if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
-                        ql4_printk(KERN_INFO, ha,
-                                   "DDB index = %d not available trying next\n",
-                                   ddb_index);
-                        goto get_ddb_index;
-                }
-                DEBUG2(ql4_printk(KERN_INFO, ha,
-                                  "Free FW DDB not available\n"));
+        ret = qla4xxx_get_ddb_index(ha, &ddb_index);
+        if (ret == QLA_ERROR)
                 return NULL;
-        }
 
         cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
                                        cmds_max, sizeof(struct ddb_entry),
@@ -1040,6 +1168,8 @@ get_ddb_index:
         ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
         ddb_entry->ha = ha;
         ddb_entry->sess = cls_sess;
+        ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
+        ddb_entry->ddb_change = qla4xxx_ddb_change;
         cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
         ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
         ha->tot_ddbs++;
@@ -1077,6 +1207,9 @@ qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx)
         DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
         cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn),
                                     conn_idx);
+        if (!cls_conn)
+                return NULL;
+
         sess = cls_sess->dd_data;
         ddb_entry = sess->dd_data;
         ddb_entry->conn = cls_conn;
@@ -1109,7 +1242,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
         struct iscsi_session *sess;
         struct ddb_entry *ddb_entry;
         struct scsi_qla_host *ha;
-        struct dev_db_entry *fw_ddb_entry;
+        struct dev_db_entry *fw_ddb_entry = NULL;
         dma_addr_t fw_ddb_entry_dma;
         uint32_t mbx_sts = 0;
         int ret = 0;
@@ -1120,12 +1253,25 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
         ddb_entry = sess->dd_data;
         ha = ddb_entry->ha;
 
+        /* Check if we have  matching FW DDB, if yes then do not
+         * login to this target. This could cause target to logout previous
+         * connection
+         */
+        ret = qla4xxx_match_fwdb_session(ha, cls_conn);
+        if (ret == QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha,
+                           "Session already exist in FW.\n");
+                ret = -EEXIST;
+                goto exit_conn_start;
+        }
+
         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
                                           &fw_ddb_entry_dma, GFP_KERNEL);
         if (!fw_ddb_entry) {
                 ql4_printk(KERN_ERR, ha,
                            "%s: Unable to allocate dma buffer\n", __func__);
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto exit_conn_start;
         }
 
         ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
@@ -1138,9 +1284,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
                 if (mbx_sts)
                         if (ddb_entry->fw_ddb_device_state ==
                                                 DDB_DS_SESSION_ACTIVE) {
-                                iscsi_conn_start(ddb_entry->conn);
-                                iscsi_conn_login_event(ddb_entry->conn,
-                                                ISCSI_CONN_STATE_LOGGED_IN);
+                                ddb_entry->unblock_sess(ddb_entry->sess);
                                 goto exit_set_param;
                         }
 
@@ -1167,8 +1311,9 @@ exit_set_param:
         ret = 0;
 
 exit_conn_start:
-        dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
-                          fw_ddb_entry, fw_ddb_entry_dma);
+        if (fw_ddb_entry)
+                dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+                                  fw_ddb_entry, fw_ddb_entry_dma);
         return ret;
 }
 
@@ -1344,6 +1489,101 @@ static int qla4xxx_task_xmit(struct iscsi_task *task)
         return -ENOSYS;
 }
 
+static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
+                                     struct dev_db_entry *fw_ddb_entry,
+                                     struct iscsi_cls_session *cls_sess,
+                                     struct iscsi_cls_conn *cls_conn)
+{
+        int buflen = 0;
+        struct iscsi_session *sess;
+        struct iscsi_conn *conn;
+        char ip_addr[DDB_IPADDR_LEN];
+        uint16_t options = 0;
+
+        sess = cls_sess->dd_data;
+        conn = cls_conn->dd_data;
+
+        conn->max_recv_dlength = BYTE_UNITS *
+                          le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
+
+        conn->max_xmit_dlength = BYTE_UNITS *
+                          le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
+
+        sess->initial_r2t_en =
+                            (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
+
+        sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
+
+        sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
+
+        sess->first_burst = BYTE_UNITS *
+                               le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
+
+        sess->max_burst = BYTE_UNITS *
+                                 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
+
+        sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
+
+        sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
+
+        conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
+
+        sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
+
+        options = le16_to_cpu(fw_ddb_entry->options);
+        if (options & DDB_OPT_IPV6_DEVICE)
+                sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
+        else
+                sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
+
+        iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
+                        (char *)fw_ddb_entry->iscsi_name, buflen);
+        iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
+                        (char *)ha->name_string, buflen);
+        iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
+                        (char *)ip_addr, buflen);
+}
+
+void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
+                                             struct ddb_entry *ddb_entry)
+{
+        struct iscsi_cls_session *cls_sess;
+        struct iscsi_cls_conn *cls_conn;
+        uint32_t ddb_state;
+        dma_addr_t fw_ddb_entry_dma;
+        struct dev_db_entry *fw_ddb_entry;
+
+        fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+                                          &fw_ddb_entry_dma, GFP_KERNEL);
+        if (!fw_ddb_entry) {
+                ql4_printk(KERN_ERR, ha,
+                           "%s: Unable to allocate dma buffer\n", __func__);
+                goto exit_session_conn_fwddb_param;
+        }
+
+        if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
+                                    fw_ddb_entry_dma, NULL, NULL, &ddb_state,
+                                    NULL, NULL, NULL) == QLA_ERROR) {
+                DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
+                                  "get_ddb_entry for fw_ddb_index %d\n",
+                                  ha->host_no, __func__,
+                                  ddb_entry->fw_ddb_index));
+                goto exit_session_conn_fwddb_param;
+        }
+
+        cls_sess = ddb_entry->sess;
+
+        cls_conn = ddb_entry->conn;
+
+        /* Update params */
+        qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
+
+exit_session_conn_fwddb_param:
+        if (fw_ddb_entry)
+                dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+                                  fw_ddb_entry, fw_ddb_entry_dma);
+}
+
 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
                                        struct ddb_entry *ddb_entry)
 {
@@ -1360,7 +1600,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
         if (!fw_ddb_entry) {
                 ql4_printk(KERN_ERR, ha,
                            "%s: Unable to allocate dma buffer\n", __func__);
-                return;
+                goto exit_session_conn_param;
         }
 
         if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
@@ -1370,7 +1610,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
                                   "get_ddb_entry for fw_ddb_index %d\n",
                                   ha->host_no, __func__,
                                   ddb_entry->fw_ddb_index));
-                return;
+                goto exit_session_conn_param;
         }
 
         cls_sess = ddb_entry->sess;
@@ -1379,6 +1619,12 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
         cls_conn = ddb_entry->conn;
         conn = cls_conn->dd_data;
 
+        /* Update timers after login */
+        ddb_entry->default_relogin_timeout =
+                                le16_to_cpu(fw_ddb_entry->def_timeout);
+        ddb_entry->default_time2wait =
+                                le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
+
         /* Update params */
         conn->max_recv_dlength = BYTE_UNITS *
                           le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
@@ -1407,6 +1653,11 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 
         memcpy(sess->initiatorname, ha->name_string,
                min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
+
+exit_session_conn_param:
+        if (fw_ddb_entry)
+                dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+                                  fw_ddb_entry, fw_ddb_entry_dma);
 }
 
 /*
@@ -1607,6 +1858,9 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha)
                 vfree(ha->chap_list);
         ha->chap_list = NULL;
 
+        if (ha->fw_ddb_dma_pool)
+                dma_pool_destroy(ha->fw_ddb_dma_pool);
+
         /* release io space registers  */
         if (is_qla8022(ha)) {
                 if (ha->nx_pcibase)
@@ -1689,6 +1943,16 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
                 goto mem_alloc_error_exit;
         }
 
+        ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
+                                              DDB_DMA_BLOCK_SIZE, 8, 0);
+
+        if (ha->fw_ddb_dma_pool == NULL) {
+                ql4_printk(KERN_WARNING, ha,
+                           "%s: fw_ddb_dma_pool allocation failed..\n",
+                           __func__);
+                goto mem_alloc_error_exit;
+        }
+
         return QLA_SUCCESS;
 
 mem_alloc_error_exit:
@@ -1800,6 +2064,60 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
         }
 }
 
+void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
+{
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+
+        sess = cls_sess->dd_data;
+        ddb_entry = sess->dd_data;
+        ha = ddb_entry->ha;
+
+        if (!(ddb_entry->ddb_type == FLASH_DDB))
+                return;
+
+        if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
+            !iscsi_is_session_online(cls_sess)) {
+                if (atomic_read(&ddb_entry->retry_relogin_timer) !=
+                    INVALID_ENTRY) {
+                        if (atomic_read(&ddb_entry->retry_relogin_timer) ==
+                                        0) {
+                                atomic_set(&ddb_entry->retry_relogin_timer,
+                                           INVALID_ENTRY);
+                                set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+                                set_bit(DF_RELOGIN, &ddb_entry->flags);
+                                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                       "%s: index [%d] login device\n",
+                                        __func__, ddb_entry->fw_ddb_index));
+                        } else
+                                atomic_dec(&ddb_entry->retry_relogin_timer);
+                }
+        }
+
+        /* Wait for relogin to timeout */
+        if (atomic_read(&ddb_entry->relogin_timer) &&
+            (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
+                /*
+                 * If the relogin times out and the device is
+                 * still NOT ONLINE then try and relogin again.
+                 */
+                if (!iscsi_is_session_online(cls_sess)) {
+                        /* Reset retry relogin timer */
+                        atomic_inc(&ddb_entry->relogin_retry_count);
+                        DEBUG2(ql4_printk(KERN_INFO, ha,
+                                "%s: index[%d] relogin timed out-retrying"
+                                " relogin (%d), retry (%d)\n", __func__,
+                                ddb_entry->fw_ddb_index,
+                                atomic_read(&ddb_entry->relogin_retry_count),
+                                ddb_entry->default_time2wait + 4));
+                        set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+                        atomic_set(&ddb_entry->retry_relogin_timer,
+                                   ddb_entry->default_time2wait + 4);
+                }
+        }
+}
+
 /**
  * qla4xxx_timer - checks every second for work to do.
  * @ha: Pointer to host adapter structure.
@@ -1809,6 +2127,8 @@ static void qla4xxx_timer(struct scsi_qla_host *ha)
         int start_dpc = 0;
         uint16_t w;
 
+        iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
+
         /* If we are in the middle of AER/EEH processing
          * skip any processing and reschedule the timer
          */
@@ -2078,7 +2398,12 @@ static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
         sess = cls_session->dd_data;
         ddb_entry = sess->dd_data;
         ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
-        iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+
+        if (ddb_entry->ddb_type == FLASH_DDB)
+                iscsi_block_session(ddb_entry->sess);
+        else
+                iscsi_session_failure(cls_session->dd_data,
+                                      ISCSI_ERR_CONN_FAILED);
 }
 
 /**
@@ -2163,7 +2488,7 @@ recover_ha_init_adapter:
 
                 /* NOTE: AF_ONLINE flag set upon successful completion of
                  *       qla4xxx_initialize_adapter */
-                status = qla4xxx_initialize_adapter(ha);
+                status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
         }
 
         /* Retry failed adapter initialization, if necessary
@@ -2245,17 +2570,108 @@ static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
                         iscsi_unblock_session(ddb_entry->sess);
                 } else {
                         /* Trigger relogin */
-                        iscsi_session_failure(cls_session->dd_data,
-                                              ISCSI_ERR_CONN_FAILED);
+                        if (ddb_entry->ddb_type == FLASH_DDB) {
+                                if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
+                                        qla4xxx_arm_relogin_timer(ddb_entry);
+                        } else
+                                iscsi_session_failure(cls_session->dd_data,
+                                                      ISCSI_ERR_CONN_FAILED);
                 }
         }
 }
 
+int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
+{
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+
+        sess = cls_session->dd_data;
+        ddb_entry = sess->dd_data;
+        ha = ddb_entry->ha;
+        ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+                   " unblock session\n", ha->host_no, __func__,
+                   ddb_entry->fw_ddb_index);
+
+        iscsi_unblock_session(ddb_entry->sess);
+
+        /* Start scan target */
+        if (test_bit(AF_ONLINE, &ha->flags)) {
+                ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+                           " start scan\n", ha->host_no, __func__,
+                           ddb_entry->fw_ddb_index);
+                scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
+        }
+        return QLA_SUCCESS;
+}
+
+int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
+{
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+
+        sess = cls_session->dd_data;
+        ddb_entry = sess->dd_data;
+        ha = ddb_entry->ha;
+        ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+                   " unblock user space session\n", ha->host_no, __func__,
+                   ddb_entry->fw_ddb_index);
+        iscsi_conn_start(ddb_entry->conn);
+        iscsi_conn_login_event(ddb_entry->conn,
+                               ISCSI_CONN_STATE_LOGGED_IN);
+
+        return QLA_SUCCESS;
+}
+
 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
 {
         iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
 }
 
+static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
+{
+        uint16_t relogin_timer;
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+
+        sess = cls_sess->dd_data;
+        ddb_entry = sess->dd_data;
+        ha = ddb_entry->ha;
+
+        relogin_timer = max(ddb_entry->default_relogin_timeout,
+                            (uint16_t)RELOGIN_TOV);
+        atomic_set(&ddb_entry->relogin_timer, relogin_timer);
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
+                          ddb_entry->fw_ddb_index, relogin_timer));
+
+        qla4xxx_login_flash_ddb(cls_sess);
+}
+
+static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
+{
+        struct iscsi_session *sess;
+        struct ddb_entry *ddb_entry;
+        struct scsi_qla_host *ha;
+
+        sess = cls_sess->dd_data;
+        ddb_entry = sess->dd_data;
+        ha = ddb_entry->ha;
+
+        if (!(ddb_entry->ddb_type == FLASH_DDB))
+                return;
+
+        if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
+            !iscsi_is_session_online(cls_sess)) {
+                DEBUG2(ql4_printk(KERN_INFO, ha,
+                                  "relogin issued\n"));
+                qla4xxx_relogin_flash_ddb(cls_sess);
+        }
+}
+
 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
 {
         if (ha->dpc_thread)
@@ -2356,6 +2772,12 @@ dpc_post_reset_ha:
         if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
                 qla4xxx_get_dhcp_ip_address(ha);
 
+        /* ---- relogin device? --- */
+        if (adapter_up(ha) &&
+            test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
+                iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
+        }
+
         /* ---- link change? --- */
         if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
                 if (!test_bit(AF_LINK_UP, &ha->flags)) {
@@ -2368,8 +2790,12 @@ dpc_post_reset_ha:
                          * fatal error recovery.  Therefore, the driver must
                          * manually relogin to devices when recovering from
                          * connection failures, logouts, expired KATO, etc. */
-
-                        qla4xxx_relogin_all_devices(ha);
+                        if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
+                                qla4xxx_build_ddb_list(ha, ha->is_reset);
+                                iscsi_host_for_each_session(ha->host,
+                                                qla4xxx_login_flash_ddb);
+                        } else
+                                qla4xxx_relogin_all_devices(ha);
                 }
         }
 }
@@ -2867,6 +3293,9 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
                           " target ID %d\n", __func__, ddb_index[0],
                           ddb_index[1]));
 
+        ha->pri_ddb_idx = ddb_index[0];
+        ha->sec_ddb_idx = ddb_index[1];
+
 exit_boot_info_free:
         dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
 exit_boot_info:
@@ -3034,6 +3463,9 @@ static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
                 return ret;
         }
 
+        if (ql4xdisablesysfsboot)
+                return QLA_SUCCESS;
+
         if (ddb_index[0] == 0xffff)
                 goto sec_target;
 
@@ -3066,7 +3498,15 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
         struct iscsi_boot_kobj *boot_kobj;
 
         if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
-                return 0;
+                return QLA_ERROR;
+
+        if (ql4xdisablesysfsboot) {
+                ql4_printk(KERN_INFO, ha,
+                           "%s: syfsboot disabled - driver will trigger login"
+                           "and publish session for discovery .\n", __func__);
+                return QLA_SUCCESS;
+        }
+
 
         ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
         if (!ha->boot_kset)
@@ -3108,7 +3548,7 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
         if (!boot_kobj)
                 goto put_host;
 
-        return 0;
+        return QLA_SUCCESS;
 
 put_host:
         scsi_host_put(ha->host);
@@ -3174,9 +3614,507 @@ static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
 exit_chap_list:
         dma_free_coherent(&ha->pdev->dev, chap_size,
                         chap_flash_data, chap_dma);
-        return;
 }
 
+static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
+                                  struct ql4_tuple_ddb *tddb)
+{
+        struct scsi_qla_host *ha;
+        struct iscsi_cls_session *cls_sess;
+        struct iscsi_cls_conn *cls_conn;
+        struct iscsi_session *sess;
+        struct iscsi_conn *conn;
+
+        DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
+        ha = ddb_entry->ha;
+        cls_sess = ddb_entry->sess;
+        sess = cls_sess->dd_data;
+        cls_conn = ddb_entry->conn;
+        conn = cls_conn->dd_data;
+
+        tddb->tpgt = sess->tpgt;
+        tddb->port = conn->persistent_port;
+        strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
+        strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
+}
+
+static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
+                                      struct ql4_tuple_ddb *tddb)
+{
+        uint16_t options = 0;
+
+        tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
+        memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
+               min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
+
+        options = le16_to_cpu(fw_ddb_entry->options);
+        if (options & DDB_OPT_IPV6_DEVICE)
+                sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
+        else
+                sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
+
+        tddb->port = le16_to_cpu(fw_ddb_entry->port);
+}
+
+static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
+                                     struct ql4_tuple_ddb *old_tddb,
+                                     struct ql4_tuple_ddb *new_tddb)
+{
+        if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
+                return QLA_ERROR;
+
+        if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
+                return QLA_ERROR;
+
+        if (old_tddb->port != new_tddb->port)
+                return QLA_ERROR;
+
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
+                          old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
+                          old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
+                          new_tddb->ip_addr, new_tddb->iscsi_name));
+
+        return QLA_SUCCESS;
+}
+
+static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
+                                     struct dev_db_entry *fw_ddb_entry)
+{
+        struct ddb_entry *ddb_entry;
+        struct ql4_tuple_ddb *fw_tddb = NULL;
+        struct ql4_tuple_ddb *tmp_tddb = NULL;
+        int idx;
+        int ret = QLA_ERROR;
+
+        fw_tddb = vzalloc(sizeof(*fw_tddb));
+        if (!fw_tddb) {
+                DEBUG2(ql4_printk(KERN_WARNING, ha,
+                                  "Memory Allocation failed.\n"));
+                ret = QLA_SUCCESS;
+                goto exit_check;
+        }
+
+        tmp_tddb = vzalloc(sizeof(*tmp_tddb));
+        if (!tmp_tddb) {
+                DEBUG2(ql4_printk(KERN_WARNING, ha,
+                                  "Memory Allocation failed.\n"));
+                ret = QLA_SUCCESS;
+                goto exit_check;
+        }
+
+        qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
+
+        for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
+                ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+                if (ddb_entry == NULL)
+                        continue;
+
+                qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
+                if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
+                        ret = QLA_SUCCESS; /* found */
+                        goto exit_check;
+                }
+        }
+
+exit_check:
+        if (fw_tddb)
+                vfree(fw_tddb);
+        if (tmp_tddb)
+                vfree(tmp_tddb);
+        return ret;
+}
+
+static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
+                                       struct list_head *list_nt,
+                                       struct dev_db_entry *fw_ddb_entry)
+{
+        struct qla_ddb_index  *nt_ddb_idx, *nt_ddb_idx_tmp;
+        struct ql4_tuple_ddb *fw_tddb = NULL;
+        struct ql4_tuple_ddb *tmp_tddb = NULL;
+        int ret = QLA_ERROR;
+
+        fw_tddb = vzalloc(sizeof(*fw_tddb));
+        if (!fw_tddb) {
+                DEBUG2(ql4_printk(KERN_WARNING, ha,
+                                  "Memory Allocation failed.\n"));
+                ret = QLA_SUCCESS;
+                goto exit_check;
+        }
+
+        tmp_tddb = vzalloc(sizeof(*tmp_tddb));
+        if (!tmp_tddb) {
+                DEBUG2(ql4_printk(KERN_WARNING, ha,
+                                  "Memory Allocation failed.\n"));
+                ret = QLA_SUCCESS;
+                goto exit_check;
+        }
+
+        qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
+
+        list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
+                qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb);
+                if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
+                        ret = QLA_SUCCESS; /* found */
+                        goto exit_check;
+                }
+        }
+
+exit_check:
+        if (fw_tddb)
+                vfree(fw_tddb);
+        if (tmp_tddb)
+                vfree(tmp_tddb);
+        return ret;
+}
+
+static void qla4xxx_free_nt_list(struct list_head *list_nt)
+{
+        struct qla_ddb_index  *nt_ddb_idx, *nt_ddb_idx_tmp;
+
+        /* Free up the normaltargets list */
+        list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
+                list_del_init(&nt_ddb_idx->list);
+                vfree(nt_ddb_idx);
+        }
+
+}
+
+static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
+                                        struct dev_db_entry *fw_ddb_entry)
+{
+        struct iscsi_endpoint *ep;
+        struct sockaddr_in *addr;
+        struct sockaddr_in6 *addr6;
+        struct sockaddr *dst_addr;
+        char *ip;
+
+        /* TODO: need to destroy on unload iscsi_endpoint*/
+        dst_addr = vmalloc(sizeof(*dst_addr));
+        if (!dst_addr)
+                return NULL;
+
+        if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
+                dst_addr->sa_family = AF_INET6;
+                addr6 = (struct sockaddr_in6 *)dst_addr;
+                ip = (char *)&addr6->sin6_addr;
+                memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
+                addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
+
+        } else {
+                dst_addr->sa_family = AF_INET;
+                addr = (struct sockaddr_in *)dst_addr;
+                ip = (char *)&addr->sin_addr;
+                memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
+                addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
+        }
+
+        ep = qla4xxx_ep_connect(ha->host, dst_addr, 0);
+        vfree(dst_addr);
+        return ep;
+}
+
+static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
+{
+        if (ql4xdisablesysfsboot)
+                return QLA_SUCCESS;
+        if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
+                return QLA_ERROR;
+        return QLA_SUCCESS;
+}
+
+static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
+                                          struct ddb_entry *ddb_entry)
+{
+        ddb_entry->ddb_type = FLASH_DDB;
+        ddb_entry->fw_ddb_index = INVALID_ENTRY;
+        ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
+        ddb_entry->ha = ha;
+        ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
+        ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
+
+        atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
+        atomic_set(&ddb_entry->relogin_timer, 0);
+        atomic_set(&ddb_entry->relogin_retry_count, 0);
+
+        ddb_entry->default_relogin_timeout =
+                le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
+        ddb_entry->default_time2wait =
+                le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
+}
+
+static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
+{
+        uint32_t idx = 0;
+        uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
+        uint32_t sts[MBOX_REG_COUNT];
+        uint32_t ip_state;
+        unsigned long wtime;
+        int ret;
+
+        wtime = jiffies + (HZ * IP_CONFIG_TOV);
+        do {
+                for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
+                        if (ip_idx[idx] == -1)
+                                continue;
+
+                        ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
+
+                        if (ret == QLA_ERROR) {
+                                ip_idx[idx] = -1;
+                                continue;
+                        }
+
+                        ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
+
+                        DEBUG2(ql4_printk(KERN_INFO, ha,
+                                          "Waiting for IP state for idx = %d, state = 0x%x\n",
+                                          ip_idx[idx], ip_state));
+                        if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
+                            ip_state == IP_ADDRSTATE_INVALID ||
+                            ip_state == IP_ADDRSTATE_PREFERRED ||
+                            ip_state == IP_ADDRSTATE_DEPRICATED ||
+                            ip_state == IP_ADDRSTATE_DISABLING)
+                                ip_idx[idx] = -1;
+
+                }
+
+                /* Break if all IP states checked */
+                if ((ip_idx[0] == -1) &&
+                    (ip_idx[1] == -1) &&
+                    (ip_idx[2] == -1) &&
+                    (ip_idx[3] == -1))
+                        break;
+                schedule_timeout_uninterruptible(HZ);
+        } while (time_after(wtime, jiffies));
+}
+
+void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
+{
+        int max_ddbs;
+        int ret;
+        uint32_t idx = 0, next_idx = 0;
+        uint32_t state = 0, conn_err = 0;
+        uint16_t conn_id;
+        struct dev_db_entry *fw_ddb_entry;
+        struct ddb_entry *ddb_entry = NULL;
+        dma_addr_t fw_ddb_dma;
+        struct iscsi_cls_session *cls_sess;
+        struct iscsi_session *sess;
+        struct iscsi_cls_conn *cls_conn;
+        struct iscsi_endpoint *ep;
+        uint16_t cmds_max = 32, tmo = 0;
+        uint32_t initial_cmdsn = 0;
+        struct list_head list_st, list_nt; /* List of sendtargets */
+        struct qla_ddb_index  *st_ddb_idx, *st_ddb_idx_tmp;
+        int fw_idx_size;
+        unsigned long wtime;
+        struct qla_ddb_index  *nt_ddb_idx;
+
+        if (!test_bit(AF_LINK_UP, &ha->flags)) {
+                set_bit(AF_BUILD_DDB_LIST, &ha->flags);
+                ha->is_reset = is_reset;
+                return;
+        }
+        max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+                                     MAX_DEV_DB_ENTRIES;
+
+        fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+                                      &fw_ddb_dma);
+        if (fw_ddb_entry == NULL) {
+                DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
+                goto exit_ddb_list;
+        }
+
+        INIT_LIST_HEAD(&list_st);
+        INIT_LIST_HEAD(&list_nt);
+        fw_idx_size = sizeof(struct qla_ddb_index);
+
+        for (idx = 0; idx < max_ddbs; idx = next_idx) {
+                ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
+                                              fw_ddb_dma, NULL,
+                                              &next_idx, &state, &conn_err,
+                                              NULL, &conn_id);
+                if (ret == QLA_ERROR)
+                        break;
+
+                if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
+                        goto continue_next_st;
+
+                /* Check if ST, add to the list_st */
+                if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
+                        goto continue_next_st;
+
+                st_ddb_idx = vzalloc(fw_idx_size);
+                if (!st_ddb_idx)
+                        break;
+
+                st_ddb_idx->fw_ddb_idx = idx;
+
+                list_add_tail(&st_ddb_idx->list, &list_st);
+continue_next_st:
+                if (next_idx == 0)
+                        break;
+        }
+
+        /* Before issuing conn open mbox, ensure all IPs states are configured
+         * Note, conn open fails if IPs are not configured
+         */
+        qla4xxx_wait_for_ip_configuration(ha);
+
+        /* Go thru the STs and fire the sendtargets by issuing conn open mbx */
+        list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
+                qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
+        }
+
+        /* Wait to ensure all sendtargets are done for min 12 sec wait */
+        tmo = ((ha->def_timeout < LOGIN_TOV) ? LOGIN_TOV : ha->def_timeout);
+        DEBUG2(ql4_printk(KERN_INFO, ha,
+                          "Default time to wait for build ddb %d\n", tmo));
+
+        wtime = jiffies + (HZ * tmo);
+        do {
+                list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st,
+                                         list) {
+                        ret = qla4xxx_get_fwddb_entry(ha,
+                                                      st_ddb_idx->fw_ddb_idx,
+                                                      NULL, 0, NULL, &next_idx,
+                                                      &state, &conn_err, NULL,
+                                                      NULL);
+                        if (ret == QLA_ERROR)
+                                continue;
+
+                        if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
+                            state == DDB_DS_SESSION_FAILED) {
+                                list_del_init(&st_ddb_idx->list);
+                                vfree(st_ddb_idx);
+                        }
+                }
+                schedule_timeout_uninterruptible(HZ / 10);
+        } while (time_after(wtime, jiffies));
+
+        /* Free up the sendtargets list */
+        list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
+                list_del_init(&st_ddb_idx->list);
+                vfree(st_ddb_idx);
+        }
+
+        for (idx = 0; idx < max_ddbs; idx = next_idx) {
+                ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
+                                              fw_ddb_dma, NULL,
+                                              &next_idx, &state, &conn_err,
+                                              NULL, &conn_id);
+                if (ret == QLA_ERROR)
+                        break;
+
+                if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
+                        goto continue_next_nt;
+
+                /* Check if NT, then add to list it */
+                if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
+                        goto continue_next_nt;
+
+                if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
+                    state == DDB_DS_SESSION_FAILED) {
+                        DEBUG2(ql4_printk(KERN_INFO, ha,
+                                          "Adding  DDB to session = 0x%x\n",
+                                          idx));
+                        if (is_reset == INIT_ADAPTER) {
+                                nt_ddb_idx = vmalloc(fw_idx_size);
+                                if (!nt_ddb_idx)
+                                        break;
+
+                                nt_ddb_idx->fw_ddb_idx = idx;
+
+                                memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
+                                       sizeof(struct dev_db_entry));
+
+                                if (qla4xxx_is_flash_ddb_exists(ha, &list_nt,
+                                                fw_ddb_entry) == QLA_SUCCESS) {
+                                        vfree(nt_ddb_idx);
+                                        goto continue_next_nt;
+                                }
+                                list_add_tail(&nt_ddb_idx->list, &list_nt);
+                        } else if (is_reset == RESET_ADAPTER) {
+                                if (qla4xxx_is_session_exists(ha,
+                                                   fw_ddb_entry) == QLA_SUCCESS)
+                                        goto continue_next_nt;
+                        }
+
+                        /* Create session object, with INVALID_ENTRY,
+                         * the targer_id would get set when we issue the login
+                         */
+                        cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport,
+                                                ha->host, cmds_max,
+                                                sizeof(struct ddb_entry),
+                                                sizeof(struct ql4_task_data),
+                                                initial_cmdsn, INVALID_ENTRY);
+                        if (!cls_sess)
+                                goto exit_ddb_list;
+
+                        /*
+                         * iscsi_session_setup increments the driver reference
+                         * count which wouldn't let the driver to be unloaded.
+                         * so calling module_put function to decrement the
+                         * reference count.
+                         **/
+                        module_put(qla4xxx_iscsi_transport.owner);
+                        sess = cls_sess->dd_data;
+                        ddb_entry = sess->dd_data;
+                        ddb_entry->sess = cls_sess;
+
+                        cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
+                        memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
+                               sizeof(struct dev_db_entry));
+
+                        qla4xxx_setup_flash_ddb_entry(ha, ddb_entry);
+
+                        cls_conn = iscsi_conn_setup(cls_sess,
+                                                    sizeof(struct qla_conn),
+                                                    conn_id);
+                        if (!cls_conn)
+                                goto exit_ddb_list;
+
+                        ddb_entry->conn = cls_conn;
+
+                        /* Setup ep, for displaying attributes in sysfs */
+                        ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
+                        if (ep) {
+                                ep->conn = cls_conn;
+                                cls_conn->ep = ep;
+                        } else {
+                                DEBUG2(ql4_printk(KERN_ERR, ha,
+                                                  "Unable to get ep\n"));
+                        }
+
+                        /* Update sess/conn params */
+                        qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess,
+                                                 cls_conn);
+
+                        if (is_reset == RESET_ADAPTER) {
+                                iscsi_block_session(cls_sess);
+                                /* Use the relogin path to discover new devices
+                                 *  by short-circuting the logic of setting
+                                 *  timer to relogin - instead set the flags
+                                 *  to initiate login right away.
+                                 */
+                                set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+                                set_bit(DF_RELOGIN, &ddb_entry->flags);
+                        }
+                }
+continue_next_nt:
+                if (next_idx == 0)
+                        break;
+        }
+exit_ddb_list:
+        qla4xxx_free_nt_list(&list_nt);
+        if (fw_ddb_entry)
+                dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
+
+        qla4xxx_free_ddb_index(ha);
+}
+
+
 /**
  * qla4xxx_probe_adapter - callback function to probe HBA
  * @pdev: pointer to pci_dev structure
@@ -3298,7 +4236,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
          * firmware
          * NOTE: interrupts enabled upon successful completion
          */
-        status = qla4xxx_initialize_adapter(ha);
+        status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
         while ((!test_bit(AF_ONLINE, &ha->flags)) &&
             init_retry_count++ < MAX_INIT_RETRIES) {
 
@@ -3319,7 +4257,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
                 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
                         continue;
 
-                status = qla4xxx_initialize_adapter(ha);
+                status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
         }
 
         if (!test_bit(AF_ONLINE, &ha->flags)) {
@@ -3386,12 +4324,16 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
                ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
                ha->patch_number, ha->build_number);
 
-        qla4xxx_create_chap_list(ha);
-
         if (qla4xxx_setup_boot_info(ha))
                 ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n",
                            __func__);
 
+                /* Perform the build ddb list and login to each */
+        qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
+        iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
+
+        qla4xxx_create_chap_list(ha);
+
         qla4xxx_create_ifaces(ha);
         return 0;
 
@@ -3449,6 +4391,38 @@ static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
         }
 }
 
+static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
+{
+        struct ddb_entry *ddb_entry;
+        int options;
+        int idx;
+
+        for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
+
+                ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+                if ((ddb_entry != NULL) &&
+                    (ddb_entry->ddb_type == FLASH_DDB)) {
+
+                        options = LOGOUT_OPTION_CLOSE_SESSION;
+                        if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
+                            == QLA_ERROR)
+                                ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
+                                           __func__);
+
+                        qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
+                        /*
+                         * we have decremented the reference count of the driver
+                         * when we setup the session to have the driver unload
+                         * to be seamless without actually destroying the
+                         * session
+                         **/
+                        try_module_get(qla4xxx_iscsi_transport.owner);
+                        iscsi_destroy_endpoint(ddb_entry->conn->ep);
+                        qla4xxx_free_ddb(ha, ddb_entry);
+                        iscsi_session_teardown(ddb_entry->sess);
+                }
+        }
+}
 /**
  * qla4xxx_remove_adapter - calback function to remove adapter.
  * @pci_dev: PCI device pointer
@@ -3465,9 +4439,11 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
         /* destroy iface from sysfs */
         qla4xxx_destroy_ifaces(ha);
 
-        if (ha->boot_kset)
+        if ((!ql4xdisablesysfsboot) && ha->boot_kset)
                 iscsi_boot_destroy_kset(ha->boot_kset);
 
+        qla4xxx_destroy_fw_ddb_session(ha);
+
         scsi_remove_host(ha->host);
 
         qla4xxx_free_adapter(ha);
@@ -4115,7 +5091,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 
                 qla4_8xxx_idc_unlock(ha);
                 clear_bit(AF_FW_RECOVERY, &ha->flags);
-                rval = qla4xxx_initialize_adapter(ha);
+                rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
                 qla4_8xxx_idc_lock(ha);
 
                 if (rval != QLA_SUCCESS) {
@@ -4151,7 +5127,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
                 if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
                     QLA82XX_DEV_READY)) {
                         clear_bit(AF_FW_RECOVERY, &ha->flags);
-                        rval = qla4xxx_initialize_adapter(ha);
+                        rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
                         if (rval == QLA_SUCCESS) {
                                 ret = qla4xxx_request_irqs(ha);
                                 if (ret) {
diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h
index c15347d3f532..5254e57968f5 100644
--- a/drivers/scsi/qla4xxx/ql4_version.h
+++ b/drivers/scsi/qla4xxx/ql4_version.h
@@ -5,4 +5,4 @@
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION  "5.02.00-k8"
+#define QLA4XXX_DRIVER_VERSION  "5.02.00-k9"
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index a1fd73df5416..8ba4510a9519 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -199,7 +199,7 @@ config SPI_FSL_LIB
         depends on FSL_SOC
 
 config SPI_FSL_SPI
-        tristate "Freescale SPI controller"
+        bool "Freescale SPI controller"
         depends on FSL_SOC
         select SPI_FSL_LIB
         help
@@ -208,7 +208,7 @@ config SPI_FSL_SPI
           MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
 
 config SPI_FSL_ESPI
-        tristate "Freescale eSPI controller"
+        bool "Freescale eSPI controller"
         depends on FSL_SOC
         select SPI_FSL_LIB
         help
diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 024b48aed5ca..acc88b4d2869 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index e093d3ec41ba..0094c645ff0d 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -256,7 +256,7 @@ static void spi_gpio_cleanup(struct spi_device *spi)
         spi_bitbang_cleanup(spi);
 }
 
-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
+static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
 {
         int value;
 
@@ -270,7 +270,7 @@ static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
         return value;
 }
 
-static int __init
+static int __devinit
 spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
         u16 *res_flags)
 {
diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index 21c70b2b8311..182e9c873822 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -8,6 +8,7 @@
  *
  */
 
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index fb2e89c3056c..5385da2e9cdb 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -89,6 +89,7 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = {
         {USB_DEVICE(0x0DF6, 0x0045)},
         {USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */
         {USB_DEVICE(0x0DF6, 0x004B)},
+        {USB_DEVICE(0x0DF6, 0x005D)},
         {USB_DEVICE(0x0DF6, 0x0063)},
         /* Sweex */
         {USB_DEVICE(0x177F, 0x0154)},
diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c
index 3d1279c424a8..7eb56178fb64 100644
--- a/drivers/staging/tidspbridge/core/dsp-clock.c
+++ b/drivers/staging/tidspbridge/core/dsp-clock.c
@@ -54,6 +54,7 @@
 
 /* Bridge GPT id (1 - 4), DM Timer id (5 - 8) */
 #define DMT_ID(id) ((id) + 4)
+#define DM_TIMER_CLOCKS         4
 
 /* Bridge MCBSP id (6 - 10), OMAP Mcbsp id (0 - 4) */
 #define MCBSP_ID(id) ((id) - 6)
@@ -114,8 +115,13 @@ static s8 get_clk_type(u8 id)
  */
 void dsp_clk_exit(void)
 {
+        int i;
+
         dsp_clock_disable_all(dsp_clocks);
 
+        for (i = 0; i < DM_TIMER_CLOCKS; i++)
+                omap_dm_timer_free(timer[i]);
+
         clk_put(iva2_clk);
         clk_put(ssi.sst_fck);
         clk_put(ssi.ssr_fck);
@@ -130,9 +136,13 @@ void dsp_clk_exit(void)
 void dsp_clk_init(void)
 {
         static struct platform_device dspbridge_device;
+        int i, id;
 
         dspbridge_device.dev.bus = &platform_bus_type;
 
+        for (i = 0, id = 5; i < DM_TIMER_CLOCKS; i++, id++)
+                timer[i] = omap_dm_timer_request_specific(id);
+
         iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck");
         if (IS_ERR(iva2_clk))
                 dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk);
@@ -204,8 +214,7 @@ int dsp_clk_enable(enum dsp_clk_id clk_id)
                 clk_enable(iva2_clk);
                 break;
         case GPT_CLK:
-                timer[clk_id - 1] =
-                                omap_dm_timer_request_specific(DMT_ID(clk_id));
+                status = omap_dm_timer_start(timer[clk_id - 1]);
                 break;
 #ifdef CONFIG_OMAP_MCBSP
         case MCBSP_CLK:
@@ -281,7 +290,7 @@ int dsp_clk_disable(enum dsp_clk_id clk_id)
                 clk_disable(iva2_clk);
                 break;
         case GPT_CLK:
-                omap_dm_timer_free(timer[clk_id - 1]);
+                status = omap_dm_timer_stop(timer[clk_id - 1]);
                 break;
 #ifdef CONFIG_OMAP_MCBSP
         case MCBSP_CLK:
diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c
index c43c7e3421c8..76cfc6edecd9 100644
--- a/drivers/staging/tidspbridge/rmgr/drv_interface.c
+++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c
@@ -24,11 +24,7 @@
 #include <linux/types.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
-
-#ifdef MODULE
 #include <linux/module.h>
-#endif
-
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/moduleparam.h>
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 0fd96c10271d..8599545cdf9e 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -614,13 +614,12 @@ int iscsit_add_reject(
         hdr     = (struct iscsi_reject *) cmd->pdu;
         hdr->reason = reason;
 
-        cmd->buf_ptr = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+        cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
         if (!cmd->buf_ptr) {
                 pr_err("Unable to allocate memory for cmd->buf_ptr\n");
                 iscsit_release_cmd(cmd);
                 return -1;
         }
-        memcpy(cmd->buf_ptr, buf, ISCSI_HDR_LEN);
 
         spin_lock_bh(&conn->cmd_lock);
         list_add_tail(&cmd->i_list, &conn->conn_cmd_list);
@@ -661,13 +660,12 @@ int iscsit_add_reject_from_cmd(
         hdr     = (struct iscsi_reject *) cmd->pdu;
         hdr->reason = reason;
 
-        cmd->buf_ptr = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+        cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
         if (!cmd->buf_ptr) {
                 pr_err("Unable to allocate memory for cmd->buf_ptr\n");
                 iscsit_release_cmd(cmd);
                 return -1;
         }
-        memcpy(cmd->buf_ptr, buf, ISCSI_HDR_LEN);
 
         if (add_to_conn) {
                 spin_lock_bh(&conn->cmd_lock);
@@ -1017,11 +1015,6 @@ done:
                                 " non-existent or non-exported iSCSI LUN:"
                                 " 0x%016Lx\n", get_unaligned_le64(&hdr->lun));
                 }
-                if (ret == PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES)
-                        return iscsit_add_reject_from_cmd(
-                                        ISCSI_REASON_BOOKMARK_NO_RESOURCES,
-                                        1, 1, buf, cmd);
-
                 send_check_condition = 1;
                 goto attach_cmd;
         }
@@ -1044,6 +1037,8 @@ done:
                  */
                 send_check_condition = 1;
         } else {
+                cmd->data_length = cmd->se_cmd.data_length;
+
                 if (iscsit_decide_list_to_build(cmd, payload_length) < 0)
                         return iscsit_add_reject_from_cmd(
                                 ISCSI_REASON_BOOKMARK_NO_RESOURCES,
@@ -1123,7 +1118,7 @@ attach_cmd:
          * the backend memory allocation.
          */
         ret = transport_generic_new_cmd(&cmd->se_cmd);
-        if ((ret < 0) || (cmd->se_cmd.se_cmd_flags & SCF_SE_CMD_FAILED)) {
+        if (ret < 0) {
                 immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
                 dump_immediate_data = 1;
                 goto after_immediate_data;
@@ -1341,7 +1336,7 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
 
                 spin_lock_irqsave(&se_cmd->t_state_lock, flags);
                 if (!(se_cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) ||
-                     (se_cmd->se_cmd_flags & SCF_SE_CMD_FAILED))
+                     (se_cmd->se_cmd_flags & SCF_SCSI_CDB_EXCEPTION))
                         dump_unsolicited_data = 1;
                 spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
 
@@ -2513,10 +2508,10 @@ static int iscsit_send_data_in(
         if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
                 if (cmd->se_cmd.se_cmd_flags & SCF_OVERFLOW_BIT) {
                         hdr->flags |= ISCSI_FLAG_DATA_OVERFLOW;
-                        hdr->residual_count = cpu_to_be32(cmd->residual_count);
+                        hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
                 } else if (cmd->se_cmd.se_cmd_flags & SCF_UNDERFLOW_BIT) {
                         hdr->flags |= ISCSI_FLAG_DATA_UNDERFLOW;
-                        hdr->residual_count = cpu_to_be32(cmd->residual_count);
+                        hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
                 }
         }
         hton24(hdr->dlength, datain.length);
@@ -3018,10 +3013,10 @@ static int iscsit_send_status(
         hdr->flags              |= ISCSI_FLAG_CMD_FINAL;
         if (cmd->se_cmd.se_cmd_flags & SCF_OVERFLOW_BIT) {
                 hdr->flags |= ISCSI_FLAG_CMD_OVERFLOW;
-                hdr->residual_count = cpu_to_be32(cmd->residual_count);
+                hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
         } else if (cmd->se_cmd.se_cmd_flags & SCF_UNDERFLOW_BIT) {
                 hdr->flags |= ISCSI_FLAG_CMD_UNDERFLOW;
-                hdr->residual_count = cpu_to_be32(cmd->residual_count);
+                hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
         }
         hdr->response           = cmd->iscsi_response;
         hdr->cmd_status         = cmd->se_cmd.scsi_status;
@@ -3133,6 +3128,7 @@ static int iscsit_send_task_mgt_rsp(
         hdr                     = (struct iscsi_tm_rsp *) cmd->pdu;
         memset(hdr, 0, ISCSI_HDR_LEN);
         hdr->opcode             = ISCSI_OP_SCSI_TMFUNC_RSP;
+        hdr->flags              = ISCSI_FLAG_CMD_FINAL;
         hdr->response           = iscsit_convert_tcm_tmr_rsp(se_tmr);
         hdr->itt                = cpu_to_be32(cmd->init_task_tag);
         cmd->stat_sn            = conn->stat_sn++;
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index beb39469e7f1..1cd6ce373b83 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -30,9 +30,11 @@
 
 static int chap_string_to_hex(unsigned char *dst, unsigned char *src, int len)
 {
-        int j = DIV_ROUND_UP(len, 2);
+        int j = DIV_ROUND_UP(len, 2), rc;
 
-        hex2bin(dst, src, j);
+        rc = hex2bin(dst, src, j);
+        if (rc < 0)
+                pr_debug("CHAP string contains non hex digit symbols\n");
 
         dst[j] = '\0';
         return j;
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 3723d90d5ae5..f1a02dad05a0 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -398,7 +398,6 @@ struct iscsi_cmd {
         u32                     pdu_send_order;
         /* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
         u32                     pdu_start;
-        u32                     residual_count;
         /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
         u32                     seq_send_order;
         /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
@@ -535,7 +534,6 @@ struct iscsi_conn {
         atomic_t                connection_exit;
         atomic_t                connection_recovery;
         atomic_t                connection_reinstatement;
-        atomic_t                connection_wait;
         atomic_t                connection_wait_rcfr;
         atomic_t                sleep_on_conn_wait_comp;
         atomic_t                transport_failed;
@@ -643,7 +641,6 @@ struct iscsi_session {
         atomic_t                session_reinstatement;
         atomic_t                session_stop_active;
         atomic_t                sleep_on_sess_wait_comp;
-        atomic_t                transport_wait_cmds;
         /* connection list */
         struct list_head        sess_conn_list;
         struct list_head        cr_active_list;
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index c4c68da3e500..101b1beb3bca 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -938,8 +938,7 @@ int iscsit_execute_cmd(struct iscsi_cmd *cmd, int ooo)
                  * handle the SCF_SCSI_RESERVATION_CONFLICT case here as well.
                  */
                 if (se_cmd->se_cmd_flags & SCF_SCSI_CDB_EXCEPTION) {
-                        if (se_cmd->se_cmd_flags &
-                                        SCF_SCSI_RESERVATION_CONFLICT) {
+                        if (se_cmd->scsi_sense_reason == TCM_RESERVATION_CONFLICT) {
                                 cmd->i_state = ISTATE_SEND_STATUS;
                                 spin_unlock_bh(&cmd->istate_lock);
                                 iscsit_add_cmd_to_response_queue(cmd, cmd->conn,
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index daad362a93ce..d734bdec24f9 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -224,7 +224,7 @@ static int iscsi_login_zero_tsih_s1(
                 iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
                 pr_err("Could not allocate memory for session\n");
-                return -1;
+                return -ENOMEM;
         }
 
         iscsi_login_set_conn_values(sess, conn, pdu->cid);
@@ -250,7 +250,8 @@ static int iscsi_login_zero_tsih_s1(
                 pr_err("idr_pre_get() for sess_idr failed\n");
                 iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
-                return -1;
+                kfree(sess);
+                return -ENOMEM;
         }
         spin_lock(&sess_idr_lock);
         idr_get_new(&sess_idr, NULL, &sess->session_index);
@@ -270,14 +271,16 @@ static int iscsi_login_zero_tsih_s1(
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
                 pr_err("Unable to allocate memory for"
                                 " struct iscsi_sess_ops.\n");
-                return -1;
+                kfree(sess);
+                return -ENOMEM;
         }
 
         sess->se_sess = transport_init_session();
-        if (!sess->se_sess) {
+        if (IS_ERR(sess->se_sess)) {
                 iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
-                return -1;
+                kfree(sess);
+                return -ENOMEM;
         }
 
         return 0;
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 426cd4bf6a9a..98936cb7c294 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -981,14 +981,13 @@ struct iscsi_login *iscsi_target_init_negotiation(
                 return NULL;
         }
 
-        login->req = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+        login->req = kmemdup(login_pdu, ISCSI_HDR_LEN, GFP_KERNEL);
         if (!login->req) {
                 pr_err("Unable to allocate memory for Login Request.\n");
                 iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
                                 ISCSI_LOGIN_STATUS_NO_RESOURCES);
                 goto out;
         }
-        memcpy(login->req, login_pdu, ISCSI_HDR_LEN);
 
         login->req_buf = kzalloc(MAX_KEY_VALUE_PAIRS, GFP_KERNEL);
         if (!login->req_buf) {
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 3df1c9b8ae6b..81d5832fbbd5 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -113,11 +113,9 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
                         scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr,
                         &tl_cmd->tl_sense_buf[0]);
 
-        /*
-         * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
-         */
         if (scsi_bidi_cmnd(sc))
-                se_cmd->t_tasks_bidi = 1;
+                se_cmd->se_cmd_flags |= SCF_BIDI;
+
         /*
          * Locate the struct se_lun pointer and attach it to struct se_cmd
          */
@@ -148,27 +146,13 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
          * Allocate the necessary tasks to complete the received CDB+data
          */
         ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd);
-        if (ret == -ENOMEM) {
-                /* Out of Resources */
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
-        } else if (ret == -EINVAL) {
-                /*
-                 * Handle case for SAM_STAT_RESERVATION_CONFLICT
-                 */
-                if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
-                        return PYX_TRANSPORT_RESERVATION_CONFLICT;
-                /*
-                 * Otherwise, return SAM_STAT_CHECK_CONDITION and return
-                 * sense data.
-                 */
-                return PYX_TRANSPORT_USE_SENSE_REASON;
-        }
-
+        if (ret != 0)
+                return ret;
         /*
          * For BIDI commands, pass in the extra READ buffer
          * to transport_generic_map_mem_to_cmd() below..
          */
-        if (se_cmd->t_tasks_bidi) {
+        if (se_cmd->se_cmd_flags & SCF_BIDI) {
                 struct scsi_data_buffer *sdb = scsi_in(sc);
 
                 sgl_bidi = sdb->table.sgl;
@@ -194,12 +178,8 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
         }
 
         /* Tell the core about our preallocated memory */
-        ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
+        return transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
                         scsi_sg_count(sc), sgl_bidi, sgl_bidi_count);
-        if (ret < 0)
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
-
-        return 0;
 }
 
 /*
@@ -1360,17 +1340,16 @@ void tcm_loop_drop_scsi_hba(
 {
         struct tcm_loop_hba *tl_hba = container_of(wwn,
                                 struct tcm_loop_hba, tl_hba_wwn);
-        int host_no = tl_hba->sh->host_no;
+
+        pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target"
+                " SAS Address: %s at Linux/SCSI Host ID: %d\n",
+                tl_hba->tl_wwn_address, tl_hba->sh->host_no);
         /*
          * Call device_unregister() on the original tl_hba->dev.
          * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will
          * release *tl_hba;
          */
         device_unregister(&tl_hba->dev);
-
-        pr_debug("TCM_Loop_ConfigFS: Deallocated emulated Target"
-                " SAS Address: %s at Linux/SCSI Host ID: %d\n",
-                config_item_name(&wwn->wwn_group.cg_item), host_no);
 }
 
 /* Start items for tcm_loop_cit */
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 88f2ad43ec8b..1dcbef499d6a 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -191,9 +191,10 @@ int target_emulate_set_target_port_groups(struct se_task *task)
         int alua_access_state, primary = 0, rc;
         u16 tg_pt_id, rtpi;
 
-        if (!l_port)
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
-
+        if (!l_port) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
+        }
         buf = transport_kmap_first_data_page(cmd);
 
         /*
@@ -203,7 +204,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
         l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
         if (!l_tg_pt_gp_mem) {
                 pr_err("Unable to access l_port->sep_alua_tg_pt_gp_mem\n");
-                rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                rc = -EINVAL;
                 goto out;
         }
         spin_lock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
@@ -211,7 +213,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
         if (!l_tg_pt_gp) {
                 spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
                 pr_err("Unable to access *l_tg_pt_gp_mem->tg_pt_gp\n");
-                rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                rc = -EINVAL;
                 goto out;
         }
         rc = (l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA);
@@ -220,7 +223,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
         if (!rc) {
                 pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
                                 " while TPGS_EXPLICT_ALUA is disabled\n");
-                rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                rc = -EINVAL;
                 goto out;
         }
 
@@ -245,7 +249,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
                          * REQUEST, and the additional sense code set to INVALID
                          * FIELD IN PARAMETER LIST.
                          */
-                        rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        rc = -EINVAL;
                         goto out;
                 }
                 rc = -1;
@@ -298,7 +303,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
                          * throw an exception with ASCQ: INVALID_PARAMETER_LIST
                          */
                         if (rc != 0) {
-                                rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                                rc = -EINVAL;
                                 goto out;
                         }
                 } else {
@@ -335,7 +341,8 @@ int target_emulate_set_target_port_groups(struct se_task *task)
                          * INVALID_PARAMETER_LIST
                          */
                         if (rc != 0) {
-                                rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                                rc = -EINVAL;
                                 goto out;
                         }
                 }
@@ -1184,7 +1191,6 @@ void core_alua_free_lu_gp(struct t10_alua_lu_gp *lu_gp)
          * struct t10_alua_lu_gp.
          */
         spin_lock(&lu_gps_lock);
-        atomic_set(&lu_gp->lu_gp_shutdown, 1);
         list_del(&lu_gp->lu_gp_node);
         alua_lu_gps_count--;
         spin_unlock(&lu_gps_lock);
@@ -1438,7 +1444,6 @@ struct t10_alua_tg_pt_gp_member *core_alua_allocate_tg_pt_gp_mem(
 
         tg_pt_gp_mem->tg_pt = port;
         port->sep_alua_tg_pt_gp_mem = tg_pt_gp_mem;
-        atomic_set(&port->sep_tg_pt_gp_active, 1);
 
         return tg_pt_gp_mem;
 }
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 683ba02b8247..831468b3163d 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -478,7 +478,7 @@ target_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
         if (cmd->data_length < 60)
                 return 0;
 
-        buf[2] = 0x3c;
+        buf[3] = 0x3c;
         /* Set HEADSUP, ORDSUP, SIMPSUP */
         buf[5] = 0x07;
 
@@ -703,6 +703,7 @@ int target_emulate_inquiry(struct se_task *task)
         if (cmd->data_length < 4) {
                 pr_err("SCSI Inquiry payload length: %u"
                         " too small for EVPD=1\n", cmd->data_length);
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
                 return -EINVAL;
         }
 
@@ -719,6 +720,7 @@ int target_emulate_inquiry(struct se_task *task)
         }
 
         pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]);
+        cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
         ret = -EINVAL;
 
 out_unmap:
@@ -969,7 +971,8 @@ int target_emulate_modesense(struct se_task *task)
         default:
                 pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n",
                        cdb[2] & 0x3f, cdb[3]);
-                return PYX_TRANSPORT_UNKNOWN_MODE_PAGE;
+                cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE;
+                return -EINVAL;
         }
         offset += length;
 
@@ -1027,7 +1030,8 @@ int target_emulate_request_sense(struct se_task *task)
         if (cdb[1] & 0x01) {
                 pr_err("REQUEST_SENSE description emulation not"
                         " supported\n");
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -ENOSYS;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -1100,7 +1104,8 @@ int target_emulate_unmap(struct se_task *task)
         if (!dev->transport->do_discard) {
                 pr_err("UNMAP emulation not supported for: %s\n",
                                 dev->transport->name);
-                return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                return -ENOSYS;
         }
 
         /* First UNMAP block descriptor starts at 8 byte offset */
@@ -1157,7 +1162,8 @@ int target_emulate_write_same(struct se_task *task)
         if (!dev->transport->do_discard) {
                 pr_err("WRITE_SAME emulation not supported"
                                 " for: %s\n", dev->transport->name);
-                return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                return -ENOSYS;
         }
 
         if (cmd->t_task_cdb[0] == WRITE_SAME)
@@ -1193,11 +1199,13 @@ int target_emulate_write_same(struct se_task *task)
 int target_emulate_synchronize_cache(struct se_task *task)
 {
         struct se_device *dev = task->task_se_cmd->se_dev;
+        struct se_cmd *cmd = task->task_se_cmd;
 
         if (!dev->transport->do_sync_cache) {
                 pr_err("SYNCHRONIZE_CACHE emulation not supported"
                         " for: %s\n", dev->transport->name);
-                return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                return -ENOSYS;
         }
 
         dev->transport->do_sync_cache(task);
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index e0c1e8a8dd4e..93d4f6a1b798 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -67,9 +67,6 @@ static struct config_group target_core_hbagroup;
 static struct config_group alua_group;
 static struct config_group alua_lu_gps_group;
 
-static DEFINE_SPINLOCK(se_device_lock);
-static LIST_HEAD(se_dev_list);
-
 static inline struct se_hba *
 item_to_hba(struct config_item *item)
 {
@@ -2741,7 +2738,6 @@ static struct config_group *target_core_make_subdev(
                                 " struct se_subsystem_dev\n");
                 goto unlock;
         }
-        INIT_LIST_HEAD(&se_dev->se_dev_node);
         INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list);
         spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock);
         INIT_LIST_HEAD(&se_dev->t10_pr.registration_list);
@@ -2777,9 +2773,6 @@ static struct config_group *target_core_make_subdev(
                         " from allocate_virtdevice()\n");
                 goto out;
         }
-        spin_lock(&se_device_lock);
-        list_add_tail(&se_dev->se_dev_node, &se_dev_list);
-        spin_unlock(&se_device_lock);
 
         config_group_init_type_name(&se_dev->se_dev_group, name,
                         &target_core_dev_cit);
@@ -2874,10 +2867,6 @@ static void target_core_drop_subdev(
         mutex_lock(&hba->hba_access_mutex);
         t = hba->transport;
 
-        spin_lock(&se_device_lock);
-        list_del(&se_dev->se_dev_node);
-        spin_unlock(&se_device_lock);
-
         dev_stat_grp = &se_dev->dev_stat_grps.stat_group;
         for (i = 0; dev_stat_grp->default_groups[i]; i++) {
                 df_item = &dev_stat_grp->default_groups[i]->cg_item;
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index ba5edec2c5f8..9b8639425472 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -104,7 +104,6 @@ int transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
                 se_cmd->se_lun = deve->se_lun;
                 se_cmd->pr_res_key = deve->pr_res_key;
                 se_cmd->orig_fe_lun = unpacked_lun;
-                se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
                 se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
         }
         spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
@@ -137,7 +136,6 @@ int transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
                 se_lun = &se_sess->se_tpg->tpg_virt_lun0;
                 se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
                 se_cmd->orig_fe_lun = 0;
-                se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
                 se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
         }
         /*
@@ -200,7 +198,6 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
                 se_lun = deve->se_lun;
                 se_cmd->pr_res_key = deve->pr_res_key;
                 se_cmd->orig_fe_lun = unpacked_lun;
-                se_cmd->se_orig_obj_ptr = se_cmd->se_dev;
         }
         spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
 
@@ -708,7 +705,7 @@ done:
 
         se_task->task_scsi_status = GOOD;
         transport_complete_task(se_task, 1);
-        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+        return 0;
 }
 
 /*      se_release_device_for_hba():
@@ -957,8 +954,12 @@ int se_dev_set_emulate_dpo(struct se_device *dev, int flag)
                 return -EINVAL;
         }
 
-        pr_err("dpo_emulated not supported\n");
-        return -EINVAL;
+        if (flag) {
+                pr_err("dpo_emulated not supported\n");
+                return -EINVAL;
+        }
+
+        return 0;
 }
 
 int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
@@ -968,7 +969,7 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
                 return -EINVAL;
         }
 
-        if (dev->transport->fua_write_emulated == 0) {
+        if (flag && dev->transport->fua_write_emulated == 0) {
                 pr_err("fua_write_emulated not supported\n");
                 return -EINVAL;
         }
@@ -985,8 +986,12 @@ int se_dev_set_emulate_fua_read(struct se_device *dev, int flag)
                 return -EINVAL;
         }
 
-        pr_err("ua read emulated not supported\n");
-        return -EINVAL;
+        if (flag) {
+                pr_err("ua read emulated not supported\n");
+                return -EINVAL;
+        }
+
+        return 0;
 }
 
 int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
@@ -995,7 +1000,7 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
                 pr_err("Illegal value %d\n", flag);
                 return -EINVAL;
         }
-        if (dev->transport->write_cache_emulated == 0) {
+        if (flag && dev->transport->write_cache_emulated == 0) {
                 pr_err("write_cache_emulated not supported\n");
                 return -EINVAL;
         }
@@ -1056,7 +1061,7 @@ int se_dev_set_emulate_tpu(struct se_device *dev, int flag)
          * We expect this value to be non-zero when generic Block Layer
          * Discard supported is detected iblock_create_virtdevice().
          */
-        if (!dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
+        if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
                 pr_err("Generic Block Discard not supported\n");
                 return -ENOSYS;
         }
@@ -1077,7 +1082,7 @@ int se_dev_set_emulate_tpws(struct se_device *dev, int flag)
          * We expect this value to be non-zero when generic Block Layer
          * Discard supported is detected iblock_create_virtdevice().
          */
-        if (!dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
+        if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
                 pr_err("Generic Block Discard not supported\n");
                 return -ENOSYS;
         }
@@ -1587,7 +1592,6 @@ int core_dev_setup_virtual_lun0(void)
                 ret = -ENOMEM;
                 goto out;
         }
-        INIT_LIST_HEAD(&se_dev->se_dev_node);
         INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list);
         spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock);
         INIT_LIST_HEAD(&se_dev->t10_pr.registration_list);
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 67cd6fe05bfa..b4864fba4ef0 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -289,9 +289,9 @@ static int fd_do_readv(struct se_task *task)
                 return -ENOMEM;
         }
 
-        for (i = 0; i < task->task_sg_nents; i++) {
-                iov[i].iov_len = sg[i].length;
-                iov[i].iov_base = sg_virt(&sg[i]);
+        for_each_sg(task->task_sg, sg, task->task_sg_nents, i) {
+                iov[i].iov_len = sg->length;
+                iov[i].iov_base = sg_virt(sg);
         }
 
         old_fs = get_fs();
@@ -342,9 +342,9 @@ static int fd_do_writev(struct se_task *task)
                 return -ENOMEM;
         }
 
-        for (i = 0; i < task->task_sg_nents; i++) {
-                iov[i].iov_len = sg[i].length;
-                iov[i].iov_base = sg_virt(&sg[i]);
+        for_each_sg(task->task_sg, sg, task->task_sg_nents, i) {
+                iov[i].iov_len = sg->length;
+                iov[i].iov_base = sg_virt(sg);
         }
 
         old_fs = get_fs();
@@ -438,7 +438,7 @@ static int fd_do_task(struct se_task *task)
                 if (ret > 0 &&
                     dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0 &&
                     dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
-                    cmd->t_tasks_fua) {
+                    (cmd->se_cmd_flags & SCF_FUA)) {
                         /*
                          * We might need to be a bit smarter here
                          * and return some sense data to let the initiator
@@ -449,13 +449,15 @@ static int fd_do_task(struct se_task *task)
 
         }
 
-        if (ret < 0)
+        if (ret < 0) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
                 return ret;
+        }
         if (ret) {
                 task->task_scsi_status = GOOD;
                 transport_complete_task(task, 1);
         }
-        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+        return 0;
 }
 
 /*      fd_free_task(): (Part of se_subsystem_api_t template)
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 7698efe29262..4aa992204438 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -531,7 +531,7 @@ static int iblock_do_task(struct se_task *task)
                  */
                 if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache == 0 ||
                     (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
-                     task->task_se_cmd->t_tasks_fua))
+                     (cmd->se_cmd_flags & SCF_FUA)))
                         rw = WRITE_FUA;
                 else
                         rw = WRITE;
@@ -554,12 +554,15 @@ static int iblock_do_task(struct se_task *task)
         else {
                 pr_err("Unsupported SCSI -> BLOCK LBA conversion:"
                                 " %u\n", dev->se_sub_dev->se_dev_attrib.block_size);
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -ENOSYS;
         }
 
         bio = iblock_get_bio(task, block_lba, sg_num);
-        if (!bio)
-                return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+        if (!bio) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -ENOMEM;
+        }
 
         bio_list_init(&list);
         bio_list_add(&list, bio);
@@ -588,12 +591,13 @@ static int iblock_do_task(struct se_task *task)
                 submit_bio(rw, bio);
         blk_finish_plug(&plug);
 
-        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+        return 0;
 
 fail:
         while ((bio = bio_list_pop(&list)))
                 bio_put(bio);
-        return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+        cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+        return -ENOMEM;
 }
 
 static u32 iblock_get_device_rev(struct se_device *dev)
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 5a4ebfc3a54f..95dee7074aeb 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -191,7 +191,7 @@ static int target_check_scsi2_reservation_conflict(struct se_cmd *cmd, int *ret)
                 pr_err("Received legacy SPC-2 RESERVE/RELEASE"
                         " while active SPC-3 registrations exist,"
                         " returning RESERVATION_CONFLICT\n");
-                *ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
                 return true;
         }
 
@@ -252,7 +252,8 @@ int target_scsi2_reservation_reserve(struct se_task *task)
             (cmd->t_task_cdb[1] & 0x02)) {
                 pr_err("LongIO and Obselete Bits set, returning"
                                 " ILLEGAL_REQUEST\n");
-                ret = PYX_TRANSPORT_ILLEGAL_REQUEST;
+                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -277,7 +278,8 @@ int target_scsi2_reservation_reserve(struct se_task *task)
                         " from %s \n", cmd->se_lun->unpacked_lun,
                         cmd->se_deve->mapped_lun,
                         sess->se_node_acl->initiatorname);
-                ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                ret = -EINVAL;
                 goto out_unlock;
         }
 
@@ -1510,7 +1512,8 @@ static int core_scsi3_decode_spec_i_port(
         tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL);
         if (!tidh_new) {
                 pr_err("Unable to allocate tidh_new\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         INIT_LIST_HEAD(&tidh_new->dest_list);
         tidh_new->dest_tpg = tpg;
@@ -1522,7 +1525,8 @@ static int core_scsi3_decode_spec_i_port(
                                 sa_res_key, all_tg_pt, aptpl);
         if (!local_pr_reg) {
                 kfree(tidh_new);
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -ENOMEM;
         }
         tidh_new->dest_pr_reg = local_pr_reg;
         /*
@@ -1548,7 +1552,8 @@ static int core_scsi3_decode_spec_i_port(
                 pr_err("SPC-3 PR: Illegal tpdl: %u + 28 byte header"
                         " does not equal CDB data_length: %u\n", tpdl,
                         cmd->data_length);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -1598,7 +1603,9 @@ static int core_scsi3_decode_spec_i_port(
                                         " for tmp_tpg\n");
                                 atomic_dec(&tmp_tpg->tpg_pr_ref_count);
                                 smp_mb__after_atomic_dec();
-                                ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                                cmd->scsi_sense_reason =
+                                        TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                                ret = -EINVAL;
                                 goto out;
                         }
                         /*
@@ -1628,7 +1635,9 @@ static int core_scsi3_decode_spec_i_port(
                                 atomic_dec(&dest_node_acl->acl_pr_ref_count);
                                 smp_mb__after_atomic_dec();
                                 core_scsi3_tpg_undepend_item(tmp_tpg);
-                                ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                                cmd->scsi_sense_reason =
+                                        TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                                ret = -EINVAL;
                                 goto out;
                         }
 
@@ -1646,7 +1655,8 @@ static int core_scsi3_decode_spec_i_port(
                 if (!dest_tpg) {
                         pr_err("SPC-3 PR SPEC_I_PT: Unable to locate"
                                         " dest_tpg\n");
-                        ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        ret = -EINVAL;
                         goto out;
                 }
 #if 0
@@ -1660,7 +1670,8 @@ static int core_scsi3_decode_spec_i_port(
                                 " %u for Transport ID: %s\n", tid_len, ptr);
                         core_scsi3_nodeacl_undepend_item(dest_node_acl);
                         core_scsi3_tpg_undepend_item(dest_tpg);
-                        ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        ret = -EINVAL;
                         goto out;
                 }
                 /*
@@ -1678,7 +1689,8 @@ static int core_scsi3_decode_spec_i_port(
 
                         core_scsi3_nodeacl_undepend_item(dest_node_acl);
                         core_scsi3_tpg_undepend_item(dest_tpg);
-                        ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        ret = -EINVAL;
                         goto out;
                 }
 
@@ -1690,7 +1702,9 @@ static int core_scsi3_decode_spec_i_port(
                         smp_mb__after_atomic_dec();
                         core_scsi3_nodeacl_undepend_item(dest_node_acl);
                         core_scsi3_tpg_undepend_item(dest_tpg);
-                        ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                        cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        ret = -EINVAL;
                         goto out;
                 }
 #if 0
@@ -1727,7 +1741,9 @@ static int core_scsi3_decode_spec_i_port(
                         core_scsi3_lunacl_undepend_item(dest_se_deve);
                         core_scsi3_nodeacl_undepend_item(dest_node_acl);
                         core_scsi3_tpg_undepend_item(dest_tpg);
-                        ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                        cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        ret = -ENOMEM;
                         goto out;
                 }
                 INIT_LIST_HEAD(&tidh_new->dest_list);
@@ -1759,7 +1775,8 @@ static int core_scsi3_decode_spec_i_port(
                         core_scsi3_nodeacl_undepend_item(dest_node_acl);
                         core_scsi3_tpg_undepend_item(dest_tpg);
                         kfree(tidh_new);
-                        ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        ret = -EINVAL;
                         goto out;
                 }
                 tidh_new->dest_pr_reg = dest_pr_reg;
@@ -2098,7 +2115,8 @@ static int core_scsi3_emulate_pro_register(
 
         if (!se_sess || !se_lun) {
                 pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         se_tpg = se_sess->se_tpg;
         se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
@@ -2117,13 +2135,14 @@ static int core_scsi3_emulate_pro_register(
                 if (res_key) {
                         pr_warn("SPC-3 PR: Reservation Key non-zero"
                                 " for SA REGISTER, returning CONFLICT\n");
-                        return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                        cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                        return -EINVAL;
                 }
                 /*
                  * Do nothing but return GOOD status.
                  */
                 if (!sa_res_key)
-                        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+                        return 0;
 
                 if (!spec_i_pt) {
                         /*
@@ -2138,7 +2157,8 @@ static int core_scsi3_emulate_pro_register(
                         if (ret != 0) {
                                 pr_err("Unable to allocate"
                                         " struct t10_pr_registration\n");
-                                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                                return -EINVAL;
                         }
                 } else {
                         /*
@@ -2197,14 +2217,16 @@ static int core_scsi3_emulate_pro_register(
                                         " 0x%016Lx\n", res_key,
                                         pr_reg->pr_res_key);
                                 core_scsi3_put_pr_reg(pr_reg);
-                                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                                return -EINVAL;
                         }
                 }
                 if (spec_i_pt) {
                         pr_err("SPC-3 PR UNREGISTER: SPEC_I_PT"
                                 " set while sa_res_key=0\n");
                         core_scsi3_put_pr_reg(pr_reg);
-                        return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        return -EINVAL;
                 }
                 /*
                  * An existing ALL_TG_PT=1 registration being released
@@ -2215,7 +2237,8 @@ static int core_scsi3_emulate_pro_register(
                                 " registration exists, but ALL_TG_PT=1 bit not"
                                 " present in received PROUT\n");
                         core_scsi3_put_pr_reg(pr_reg);
-                        return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                        cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                        return -EINVAL;
                 }
                 /*
                  * Allocate APTPL metadata buffer used for UNREGISTER ops
@@ -2227,7 +2250,9 @@ static int core_scsi3_emulate_pro_register(
                                 pr_err("Unable to allocate"
                                         " pr_aptpl_buf\n");
                                 core_scsi3_put_pr_reg(pr_reg);
-                                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                                cmd->scsi_sense_reason =
+                                        TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                                return -EINVAL;
                         }
                 }
                 /*
@@ -2241,7 +2266,8 @@ static int core_scsi3_emulate_pro_register(
                         if (pr_holder < 0) {
                                 kfree(pr_aptpl_buf);
                                 core_scsi3_put_pr_reg(pr_reg);
-                                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                                return -EINVAL;
                         }
 
                         spin_lock(&pr_tmpl->registration_lock);
@@ -2405,7 +2431,8 @@ static int core_scsi3_pro_reserve(
 
         if (!se_sess || !se_lun) {
                 pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         se_tpg = se_sess->se_tpg;
         se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
@@ -2417,7 +2444,8 @@ static int core_scsi3_pro_reserve(
         if (!pr_reg) {
                 pr_err("SPC-3 PR: Unable to locate"
                         " PR_REGISTERED *pr_reg for RESERVE\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         /*
          * From spc4r17 Section 5.7.9: Reserving:
@@ -2433,7 +2461,8 @@ static int core_scsi3_pro_reserve(
                         " does not match existing SA REGISTER res_key:"
                         " 0x%016Lx\n", res_key, pr_reg->pr_res_key);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         /*
          * From spc4r17 Section 5.7.9: Reserving:
@@ -2448,7 +2477,8 @@ static int core_scsi3_pro_reserve(
         if (scope != PR_SCOPE_LU_SCOPE) {
                 pr_err("SPC-3 PR: Illegal SCOPE: 0x%02x\n", scope);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
         /*
          * See if we have an existing PR reservation holder pointer at
@@ -2480,7 +2510,8 @@ static int core_scsi3_pro_reserve(
 
                         spin_unlock(&dev->dev_reservation_lock);
                         core_scsi3_put_pr_reg(pr_reg);
-                        return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                        cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                        return -EINVAL;
                 }
                 /*
                  * From spc4r17 Section 5.7.9: Reserving:
@@ -2503,7 +2534,8 @@ static int core_scsi3_pro_reserve(
 
                         spin_unlock(&dev->dev_reservation_lock);
                         core_scsi3_put_pr_reg(pr_reg);
-                        return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                        cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                        return -EINVAL;
                 }
                 /*
                  * From spc4r17 Section 5.7.9: Reserving:
@@ -2517,7 +2549,7 @@ static int core_scsi3_pro_reserve(
                  */
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+                return 0;
         }
         /*
          * Otherwise, our *pr_reg becomes the PR reservation holder for said
@@ -2574,7 +2606,8 @@ static int core_scsi3_emulate_pro_reserve(
         default:
                 pr_err("SPC-3 PR: Unknown Service Action RESERVE Type:"
                         " 0x%02x\n", type);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         return ret;
@@ -2630,7 +2663,8 @@ static int core_scsi3_emulate_pro_release(
 
         if (!se_sess || !se_lun) {
                 pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         /*
          * Locate the existing *pr_reg via struct se_node_acl pointers
@@ -2639,7 +2673,8 @@ static int core_scsi3_emulate_pro_release(
         if (!pr_reg) {
                 pr_err("SPC-3 PR: Unable to locate"
                         " PR_REGISTERED *pr_reg for RELEASE\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         /*
          * From spc4r17 Section 5.7.11.2 Releasing:
@@ -2661,7 +2696,7 @@ static int core_scsi3_emulate_pro_release(
                  */
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+                return 0;
         }
         if ((pr_res_holder->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_ALLREG) ||
             (pr_res_holder->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_ALLREG))
@@ -2675,7 +2710,7 @@ static int core_scsi3_emulate_pro_release(
                  */
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+                return 0;
         }
         /*
          * From spc4r17 Section 5.7.11.2 Releasing:
@@ -2697,7 +2732,8 @@ static int core_scsi3_emulate_pro_release(
                         " 0x%016Lx\n", res_key, pr_reg->pr_res_key);
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         /*
          * From spc4r17 Section 5.7.11.2 Releasing and above:
@@ -2719,7 +2755,8 @@ static int core_scsi3_emulate_pro_release(
 
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         /*
          * In response to a persistent reservation release request from the
@@ -2802,7 +2839,8 @@ static int core_scsi3_emulate_pro_clear(
         if (!pr_reg_n) {
                 pr_err("SPC-3 PR: Unable to locate"
                         " PR_REGISTERED *pr_reg for CLEAR\n");
-                        return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         /*
          * From spc4r17 section 5.7.11.6, Clearing:
@@ -2821,7 +2859,8 @@ static int core_scsi3_emulate_pro_clear(
                         " existing SA REGISTER res_key:"
                         " 0x%016Lx\n", res_key, pr_reg_n->pr_res_key);
                 core_scsi3_put_pr_reg(pr_reg_n);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         /*
          * a) Release the persistent reservation, if any;
@@ -2979,8 +3018,10 @@ static int core_scsi3_pro_preempt(
         int all_reg = 0, calling_it_nexus = 0, released_regs = 0;
         int prh_type = 0, prh_scope = 0, ret;
 
-        if (!se_sess)
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+        if (!se_sess) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
+        }
 
         se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
         pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
@@ -2989,16 +3030,19 @@ static int core_scsi3_pro_preempt(
                 pr_err("SPC-3 PR: Unable to locate"
                         " PR_REGISTERED *pr_reg for PREEMPT%s\n",
                         (abort) ? "_AND_ABORT" : "");
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         if (pr_reg_n->pr_res_key != res_key) {
                 core_scsi3_put_pr_reg(pr_reg_n);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         if (scope != PR_SCOPE_LU_SCOPE) {
                 pr_err("SPC-3 PR: Illegal SCOPE: 0x%02x\n", scope);
                 core_scsi3_put_pr_reg(pr_reg_n);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
         INIT_LIST_HEAD(&preempt_and_abort_list);
 
@@ -3012,7 +3056,8 @@ static int core_scsi3_pro_preempt(
         if (!all_reg && !sa_res_key) {
                 spin_unlock(&dev->dev_reservation_lock);
                 core_scsi3_put_pr_reg(pr_reg_n);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
         /*
          * From spc4r17, section 5.7.11.4.4 Removing Registrations:
@@ -3106,7 +3151,8 @@ static int core_scsi3_pro_preempt(
                 if (!released_regs) {
                         spin_unlock(&dev->dev_reservation_lock);
                         core_scsi3_put_pr_reg(pr_reg_n);
-                        return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                        cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                        return -EINVAL;
                 }
                 /*
                  * For an existing all registrants type reservation
@@ -3297,7 +3343,8 @@ static int core_scsi3_emulate_pro_preempt(
         default:
                 pr_err("SPC-3 PR: Unknown Service Action PREEMPT%s"
                         " Type: 0x%02x\n", (abort) ? "_AND_ABORT" : "", type);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         return ret;
@@ -3331,7 +3378,8 @@ static int core_scsi3_emulate_pro_register_and_move(
 
         if (!se_sess || !se_lun) {
                 pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         memset(dest_iport, 0, 64);
         memset(i_buf, 0, PR_REG_ISID_ID_LEN);
@@ -3349,7 +3397,8 @@ static int core_scsi3_emulate_pro_register_and_move(
         if (!pr_reg) {
                 pr_err("SPC-3 PR: Unable to locate PR_REGISTERED"
                         " *pr_reg for REGISTER_AND_MOVE\n");
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
         }
         /*
          * The provided reservation key much match the existing reservation key
@@ -3360,7 +3409,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                         " res_key: 0x%016Lx does not match existing SA REGISTER"
                         " res_key: 0x%016Lx\n", res_key, pr_reg->pr_res_key);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
         /*
          * The service active reservation key needs to be non zero
@@ -3369,7 +3419,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                 pr_warn("SPC-3 PR REGISTER_AND_MOVE: Received zero"
                         " sa_res_key\n");
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
 
         /*
@@ -3392,7 +3443,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                         " does not equal CDB data_length: %u\n", tid_len,
                         cmd->data_length);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
 
         spin_lock(&dev->se_port_lock);
@@ -3417,7 +3469,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                         atomic_dec(&dest_se_tpg->tpg_pr_ref_count);
                         smp_mb__after_atomic_dec();
                         core_scsi3_put_pr_reg(pr_reg);
-                        return PYX_TRANSPORT_LU_COMM_FAILURE;
+                        cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        return -EINVAL;
                 }
 
                 spin_lock(&dev->se_port_lock);
@@ -3430,7 +3483,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                         " fabric ops from Relative Target Port Identifier:"
                         " %hu\n", rtpi);
                 core_scsi3_put_pr_reg(pr_reg);
-                return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                return -EINVAL;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -3445,14 +3499,16 @@ static int core_scsi3_emulate_pro_register_and_move(
                         " from fabric: %s\n", proto_ident,
                         dest_tf_ops->get_fabric_proto_ident(dest_se_tpg),
                         dest_tf_ops->get_fabric_name());
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) {
                 pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not"
                         " containg a valid tpg_parse_pr_out_transport_id"
                         " function pointer\n");
-                ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                ret = -EINVAL;
                 goto out;
         }
         initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg,
@@ -3460,7 +3516,8 @@ static int core_scsi3_emulate_pro_register_and_move(
         if (!initiator_str) {
                 pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate"
                         " initiator_str from Transport ID\n");
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
 
@@ -3489,7 +3546,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                 pr_err("SPC-3 PR REGISTER_AND_MOVE: TransportID: %s"
                         " matches: %s on received I_T Nexus\n", initiator_str,
                         pr_reg_nacl->initiatorname);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         if (!strcmp(iport_ptr, pr_reg->pr_reg_isid)) {
@@ -3497,7 +3555,8 @@ static int core_scsi3_emulate_pro_register_and_move(
                         " matches: %s %s on received I_T Nexus\n",
                         initiator_str, iport_ptr, pr_reg_nacl->initiatorname,
                         pr_reg->pr_reg_isid);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
 after_iport_check:
@@ -3517,7 +3576,8 @@ after_iport_check:
                 pr_err("Unable to locate %s dest_node_acl for"
                         " TransportID%s\n", dest_tf_ops->get_fabric_name(),
                         initiator_str);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         ret = core_scsi3_nodeacl_depend_item(dest_node_acl);
@@ -3527,7 +3587,8 @@ after_iport_check:
                 atomic_dec(&dest_node_acl->acl_pr_ref_count);
                 smp_mb__after_atomic_dec();
                 dest_node_acl = NULL;
-                ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
 #if 0
@@ -3543,7 +3604,8 @@ after_iport_check:
         if (!dest_se_deve) {
                 pr_err("Unable to locate %s dest_se_deve from RTPI:"
                         " %hu\n",  dest_tf_ops->get_fabric_name(), rtpi);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
 
@@ -3553,7 +3615,8 @@ after_iport_check:
                 atomic_dec(&dest_se_deve->pr_ref_count);
                 smp_mb__after_atomic_dec();
                 dest_se_deve = NULL;
-                ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                ret = -EINVAL;
                 goto out;
         }
 #if 0
@@ -3572,7 +3635,8 @@ after_iport_check:
                 pr_warn("SPC-3 PR REGISTER_AND_MOVE: No reservation"
                         " currently held\n");
                 spin_unlock(&dev->dev_reservation_lock);
-                ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -3585,7 +3649,8 @@ after_iport_check:
                 pr_warn("SPC-3 PR REGISTER_AND_MOVE: Calling I_T"
                         " Nexus is not reservation holder\n");
                 spin_unlock(&dev->dev_reservation_lock);
-                ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -3603,7 +3668,8 @@ after_iport_check:
                         " reservation for type: %s\n",
                         core_scsi3_pr_dump_type(pr_res_holder->pr_res_type));
                 spin_unlock(&dev->dev_reservation_lock);
-                ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                ret = -EINVAL;
                 goto out;
         }
         pr_res_nacl = pr_res_holder->pr_reg_nacl;
@@ -3640,7 +3706,8 @@ after_iport_check:
                                 sa_res_key, 0, aptpl, 2, 1);
                 if (ret != 0) {
                         spin_unlock(&dev->dev_reservation_lock);
-                        ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                        cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                        ret = -EINVAL;
                         goto out;
                 }
                 dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
@@ -3771,7 +3838,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
                 pr_err("Received PERSISTENT_RESERVE CDB while legacy"
                         " SPC-2 reservation is held, returning"
                         " RESERVATION_CONFLICT\n");
-                ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                ret = EINVAL;
                 goto out;
         }
 
@@ -3779,13 +3847,16 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
          * FIXME: A NULL struct se_session pointer means an this is not coming from
          * a $FABRIC_MOD's nexus, but from internal passthrough ops.
          */
-        if (!cmd->se_sess)
-                return PYX_TRANSPORT_LU_COMM_FAILURE;
+        if (!cmd->se_sess) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                return -EINVAL;
+        }
 
         if (cmd->data_length < 24) {
                 pr_warn("SPC-PR: Received PR OUT parameter list"
                         " length too small: %u\n", cmd->data_length);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -3820,7 +3891,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
          * SPEC_I_PT=1 is only valid for Service action: REGISTER
          */
         if (spec_i_pt && ((cdb[1] & 0x1f) != PRO_REGISTER)) {
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
 
@@ -3837,7 +3909,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
             (cmd->data_length != 24)) {
                 pr_warn("SPC-PR: Received PR OUT illegal parameter"
                         " list length: %u\n", cmd->data_length);
-                ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+                ret = -EINVAL;
                 goto out;
         }
         /*
@@ -3878,7 +3951,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
         default:
                 pr_err("Unknown PERSISTENT_RESERVE_OUT service"
                         " action: 0x%02x\n", cdb[1] & 0x1f);
-                ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                ret = -EINVAL;
                 break;
         }
 
@@ -3906,7 +3980,8 @@ static int core_scsi3_pri_read_keys(struct se_cmd *cmd)
         if (cmd->data_length < 8) {
                 pr_err("PRIN SA READ_KEYS SCSI Data Length: %u"
                         " too small\n", cmd->data_length);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -3965,7 +4040,8 @@ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd)
         if (cmd->data_length < 8) {
                 pr_err("PRIN SA READ_RESERVATIONS SCSI Data Length: %u"
                         " too small\n", cmd->data_length);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -4047,7 +4123,8 @@ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
         if (cmd->data_length < 6) {
                 pr_err("PRIN SA REPORT_CAPABILITIES SCSI Data Length:"
                         " %u too small\n", cmd->data_length);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -4108,7 +4185,8 @@ static int core_scsi3_pri_read_full_status(struct se_cmd *cmd)
         if (cmd->data_length < 8) {
                 pr_err("PRIN SA READ_FULL_STATUS SCSI Data Length: %u"
                         " too small\n", cmd->data_length);
-                return PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
         }
 
         buf = transport_kmap_first_data_page(cmd);
@@ -4255,7 +4333,8 @@ int target_scsi3_emulate_pr_in(struct se_task *task)
                 pr_err("Received PERSISTENT_RESERVE CDB while legacy"
                         " SPC-2 reservation is held, returning"
                         " RESERVATION_CONFLICT\n");
-                return PYX_TRANSPORT_RESERVATION_CONFLICT;
+                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                return -EINVAL;
         }
 
         switch (cmd->t_task_cdb[1] & 0x1f) {
@@ -4274,7 +4353,8 @@ int target_scsi3_emulate_pr_in(struct se_task *task)
         default:
                 pr_err("Unknown PERSISTENT_RESERVE_IN service"
                         " action: 0x%02x\n", cmd->t_task_cdb[1] & 0x1f);
-                ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                ret = -EINVAL;
                 break;
         }
 
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index ed32e1efe429..8b15e56b0384 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -963,6 +963,7 @@ static inline struct bio *pscsi_get_bio(int sg_num)
 static int pscsi_map_sg(struct se_task *task, struct scatterlist *task_sg,
                 struct bio **hbio)
 {
+        struct se_cmd *cmd = task->task_se_cmd;
         struct pscsi_dev_virt *pdv = task->task_se_cmd->se_dev->dev_ptr;
         u32 task_sg_num = task->task_sg_nents;
         struct bio *bio = NULL, *tbio = NULL;
@@ -971,7 +972,7 @@ static int pscsi_map_sg(struct se_task *task, struct scatterlist *task_sg,
         u32 data_len = task->task_size, i, len, bytes, off;
         int nr_pages = (task->task_size + task_sg[0].offset +
                         PAGE_SIZE - 1) >> PAGE_SHIFT;
-        int nr_vecs = 0, rc, ret = PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+        int nr_vecs = 0, rc;
         int rw = (task->task_data_direction == DMA_TO_DEVICE);
 
         *hbio = NULL;
@@ -1058,11 +1059,13 @@ fail:
                 bio->bi_next = NULL;
                 bio_endio(bio, 0);      /* XXX: should be error */
         }
-        return ret;
+        cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+        return -ENOMEM;
 }
 
 static int pscsi_do_task(struct se_task *task)
 {
+        struct se_cmd *cmd = task->task_se_cmd;
         struct pscsi_dev_virt *pdv = task->task_se_cmd->se_dev->dev_ptr;
         struct pscsi_plugin_task *pt = PSCSI_TASK(task);
         struct request *req;
@@ -1078,7 +1081,9 @@ static int pscsi_do_task(struct se_task *task)
                 if (!req || IS_ERR(req)) {
                         pr_err("PSCSI: blk_get_request() failed: %ld\n",
                                         req ? IS_ERR(req) : -ENOMEM);
-                        return PYX_TRANSPORT_LU_COMM_FAILURE;
+                        cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        return -ENODEV;
                 }
         } else {
                 BUG_ON(!task->task_size);
@@ -1087,8 +1092,11 @@ static int pscsi_do_task(struct se_task *task)
                  * Setup the main struct request for the task->task_sg[] payload
                  */
                 ret = pscsi_map_sg(task, task->task_sg, &hbio);
-                if (ret < 0)
-                        return PYX_TRANSPORT_LU_COMM_FAILURE;
+                if (ret < 0) {
+                        cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        return ret;
+                }
 
                 req = blk_make_request(pdv->pdv_sd->request_queue, hbio,
                                        GFP_KERNEL);
@@ -1115,7 +1123,7 @@ static int pscsi_do_task(struct se_task *task)
                         (task->task_se_cmd->sam_task_attr == MSG_HEAD_TAG),
                         pscsi_req_done);
 
-        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+        return 0;
 
 fail:
         while (hbio) {
@@ -1124,7 +1132,8 @@ fail:
                 bio->bi_next = NULL;
                 bio_endio(bio, 0);      /* XXX: should be error */
         }
-        return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+        cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+        return -ENOMEM;
 }
 
 /*      pscsi_get_sense_buffer():
@@ -1198,9 +1207,8 @@ static inline void pscsi_process_SAM_status(
                         " 0x%02x Result: 0x%08x\n", task, pt->pscsi_cdb[0],
                         pt->pscsi_result);
                 task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
-                task->task_error_status = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
-                task->task_se_cmd->transport_error_status =
-                                        PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                task->task_se_cmd->scsi_sense_reason =
+                                        TCM_UNSUPPORTED_SCSI_OPCODE;
                 transport_complete_task(task, 0);
                 break;
         }
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 5158d3846f19..02e51faa2f4e 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -343,235 +343,74 @@ static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
         return NULL;
 }
 
-/*      rd_MEMCPY_read():
- *
- *
- */
-static int rd_MEMCPY_read(struct rd_request *req)
+static int rd_MEMCPY(struct rd_request *req, u32 read_rd)
 {
         struct se_task *task = &req->rd_task;
         struct rd_dev *dev = req->rd_task.task_se_cmd->se_dev->dev_ptr;
         struct rd_dev_sg_table *table;
-        struct scatterlist *sg_d, *sg_s;
-        void *dst, *src;
-        u32 i = 0, j = 0, dst_offset = 0, src_offset = 0;
-        u32 length, page_end = 0, table_sg_end;
+        struct scatterlist *rd_sg;
+        struct sg_mapping_iter m;
         u32 rd_offset = req->rd_offset;
+        u32 src_len;
 
         table = rd_get_sg_table(dev, req->rd_page);
         if (!table)
                 return -EINVAL;
 
-        table_sg_end = (table->page_end_offset - req->rd_page);
-        sg_d = task->task_sg;
-        sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
+        rd_sg = &table->sg_table[req->rd_page - table->page_start_offset];
 
-        pr_debug("RD[%u]: Read LBA: %llu, Size: %u Page: %u, Offset:"
-                " %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
-                req->rd_page, req->rd_offset);
-
-        src_offset = rd_offset;
+        pr_debug("RD[%u]: %s LBA: %llu, Size: %u Page: %u, Offset: %u\n",
+                        dev->rd_dev_id, read_rd ? "Read" : "Write",
+                        task->task_lba, req->rd_size, req->rd_page,
+                        rd_offset);
 
+        src_len = PAGE_SIZE - rd_offset;
+        sg_miter_start(&m, task->task_sg, task->task_sg_nents,
+                        read_rd ? SG_MITER_TO_SG : SG_MITER_FROM_SG);
         while (req->rd_size) {
-                if ((sg_d[i].length - dst_offset) <
-                    (sg_s[j].length - src_offset)) {
-                        length = (sg_d[i].length - dst_offset);
-
-                        pr_debug("Step 1 - sg_d[%d]: %p length: %d"
-                                " offset: %u sg_s[%d].length: %u\n", i,
-                                &sg_d[i], sg_d[i].length, sg_d[i].offset, j,
-                                sg_s[j].length);
-                        pr_debug("Step 1 - length: %u dst_offset: %u"
-                                " src_offset: %u\n", length, dst_offset,
-                                src_offset);
-
-                        if (length > req->rd_size)
-                                length = req->rd_size;
-
-                        dst = sg_virt(&sg_d[i++]) + dst_offset;
-                        BUG_ON(!dst);
-
-                        src = sg_virt(&sg_s[j]) + src_offset;
-                        BUG_ON(!src);
-
-                        dst_offset = 0;
-                        src_offset = length;
-                        page_end = 0;
-                } else {
-                        length = (sg_s[j].length - src_offset);
-
-                        pr_debug("Step 2 - sg_d[%d]: %p length: %d"
-                                " offset: %u sg_s[%d].length: %u\n", i,
-                                &sg_d[i], sg_d[i].length, sg_d[i].offset,
-                                j, sg_s[j].length);
-                        pr_debug("Step 2 - length: %u dst_offset: %u"
-                                " src_offset: %u\n", length, dst_offset,
-                                src_offset);
-
-                        if (length > req->rd_size)
-                                length = req->rd_size;
-
-                        dst = sg_virt(&sg_d[i]) + dst_offset;
-                        BUG_ON(!dst);
-
-                        if (sg_d[i].length == length) {
-                                i++;
-                                dst_offset = 0;
-                        } else
-                                dst_offset = length;
-
-                        src = sg_virt(&sg_s[j++]) + src_offset;
-                        BUG_ON(!src);
-
-                        src_offset = 0;
-                        page_end = 1;
-                }
+                u32 len;
+                void *rd_addr;
 
-                memcpy(dst, src, length);
+                sg_miter_next(&m);
+                len = min((u32)m.length, src_len);
+                m.consumed = len;
 
-                pr_debug("page: %u, remaining size: %u, length: %u,"
-                        " i: %u, j: %u\n", req->rd_page,
-                        (req->rd_size - length), length, i, j);
+                rd_addr = sg_virt(rd_sg) + rd_offset;
 
-                req->rd_size -= length;
-                if (!req->rd_size)
-                        return 0;
+                if (read_rd)
+                        memcpy(m.addr, rd_addr, len);
+                else
+                        memcpy(rd_addr, m.addr, len);
 
-                if (!page_end)
+                req->rd_size -= len;
+                if (!req->rd_size)
                         continue;
 
-                if (++req->rd_page <= table->page_end_offset) {
-                        pr_debug("page: %u in same page table\n",
-                                req->rd_page);
+                src_len -= len;
+                if (src_len) {
+                        rd_offset += len;
                         continue;
                 }
 
-                pr_debug("getting new page table for page: %u\n",
-                                req->rd_page);
-
-                table = rd_get_sg_table(dev, req->rd_page);
-                if (!table)
-                        return -EINVAL;
-
-                sg_s = &table->sg_table[j = 0];
-        }
-
-        return 0;
-}
-
-/*      rd_MEMCPY_write():
- *
- *
- */
-static int rd_MEMCPY_write(struct rd_request *req)
-{
-        struct se_task *task = &req->rd_task;
-        struct rd_dev *dev = req->rd_task.task_se_cmd->se_dev->dev_ptr;
-        struct rd_dev_sg_table *table;
-        struct scatterlist *sg_d, *sg_s;
-        void *dst, *src;
-        u32 i = 0, j = 0, dst_offset = 0, src_offset = 0;
-        u32 length, page_end = 0, table_sg_end;
-        u32 rd_offset = req->rd_offset;
-
-        table = rd_get_sg_table(dev, req->rd_page);
-        if (!table)
-                return -EINVAL;
-
-        table_sg_end = (table->page_end_offset - req->rd_page);
-        sg_d = &table->sg_table[req->rd_page - table->page_start_offset];
-        sg_s = task->task_sg;
-
-        pr_debug("RD[%d] Write LBA: %llu, Size: %u, Page: %u,"
-                " Offset: %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
-                req->rd_page, req->rd_offset);
-
-        dst_offset = rd_offset;
-
-        while (req->rd_size) {
-                if ((sg_s[i].length - src_offset) <
-                    (sg_d[j].length - dst_offset)) {
-                        length = (sg_s[i].length - src_offset);
-
-                        pr_debug("Step 1 - sg_s[%d]: %p length: %d"
-                                " offset: %d sg_d[%d].length: %u\n", i,
-                                &sg_s[i], sg_s[i].length, sg_s[i].offset,
-                                j, sg_d[j].length);
-                        pr_debug("Step 1 - length: %u src_offset: %u"
-                                " dst_offset: %u\n", length, src_offset,
-                                dst_offset);
-
-                        if (length > req->rd_size)
-                                length = req->rd_size;
-
-                        src = sg_virt(&sg_s[i++]) + src_offset;
-                        BUG_ON(!src);
-
-                        dst = sg_virt(&sg_d[j]) + dst_offset;
-                        BUG_ON(!dst);
-
-                        src_offset = 0;
-                        dst_offset = length;
-                        page_end = 0;
-                } else {
-                        length = (sg_d[j].length - dst_offset);
-
-                        pr_debug("Step 2 - sg_s[%d]: %p length: %d"
-                                " offset: %d sg_d[%d].length: %u\n", i,
-                                &sg_s[i], sg_s[i].length, sg_s[i].offset,
-                                j, sg_d[j].length);
-                        pr_debug("Step 2 - length: %u src_offset: %u"
-                                " dst_offset: %u\n", length, src_offset,
-                                dst_offset);
-
-                        if (length > req->rd_size)
-                                length = req->rd_size;
-
-                        src = sg_virt(&sg_s[i]) + src_offset;
-                        BUG_ON(!src);
-
-                        if (sg_s[i].length == length) {
-                                i++;
-                                src_offset = 0;
-                        } else
-                                src_offset = length;
-
-                        dst = sg_virt(&sg_d[j++]) + dst_offset;
-                        BUG_ON(!dst);
-
-                        dst_offset = 0;
-                        page_end = 1;
-                }
-
-                memcpy(dst, src, length);
-
-                pr_debug("page: %u, remaining size: %u, length: %u,"
-                        " i: %u, j: %u\n", req->rd_page,
-                        (req->rd_size - length), length, i, j);
-
-                req->rd_size -= length;
-                if (!req->rd_size)
-                        return 0;
-
-                if (!page_end)
-                        continue;
-
-                if (++req->rd_page <= table->page_end_offset) {
-                        pr_debug("page: %u in same page table\n",
-                                req->rd_page);
+                /* rd page completed, next one please */
+                req->rd_page++;
+                rd_offset = 0;
+                src_len = PAGE_SIZE;
+                if (req->rd_page <= table->page_end_offset) {
+                        rd_sg++;
                         continue;
                 }
 
-                pr_debug("getting new page table for page: %u\n",
-                                req->rd_page);
-
                 table = rd_get_sg_table(dev, req->rd_page);
-                if (!table)
+                if (!table) {
+                        sg_miter_stop(&m);
                         return -EINVAL;
+                }
 
-                sg_d = &table->sg_table[j = 0];
+                /* since we increment, the first sg entry is correct */
+                rd_sg = table->sg_table;
         }
-
+        sg_miter_stop(&m);
         return 0;
 }
 
@@ -583,28 +422,21 @@ static int rd_MEMCPY_do_task(struct se_task *task)
 {
         struct se_device *dev = task->task_se_cmd->se_dev;
         struct rd_request *req = RD_REQ(task);
-        unsigned long long lba;
+        u64 tmp;
         int ret;
 
-        req->rd_page = (task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size) / PAGE_SIZE;
-        lba = task->task_lba;
-        req->rd_offset = (do_div(lba,
-                          (PAGE_SIZE / dev->se_sub_dev->se_dev_attrib.block_size))) *
-                           dev->se_sub_dev->se_dev_attrib.block_size;
+        tmp = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
+        req->rd_offset = do_div(tmp, PAGE_SIZE);
+        req->rd_page = tmp;
         req->rd_size = task->task_size;
 
-        if (task->task_data_direction == DMA_FROM_DEVICE)
-                ret = rd_MEMCPY_read(req);
-        else
-                ret = rd_MEMCPY_write(req);
-
+        ret = rd_MEMCPY(req, task->task_data_direction == DMA_FROM_DEVICE);
         if (ret != 0)
                 return ret;
 
         task->task_scsi_status = GOOD;
         transport_complete_task(task, 1);
-
-        return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+        return 0;
 }
 
 /*      rd_free_task(): (Part of se_subsystem_api_t template)
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 217e29df6297..684522805a1f 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -345,10 +345,6 @@ static void core_tmr_drain_cmd_list(
                         " %d t_fe_count: %d\n", (preempt_and_abort_list) ?
                         "Preempt" : "", cmd, cmd->t_state,
                         atomic_read(&cmd->t_fe_count));
-                /*
-                 * Signal that the command has failed via cmd->se_cmd_flags,
-                 */
-                transport_new_cmd_failure(cmd);
 
                 core_tmr_handle_tas_abort(tmr_nacl, cmd, tas,
                                 atomic_read(&cmd->t_fe_count));
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 3400ae6e93f8..0257658e2e3e 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -61,7 +61,6 @@
 static int sub_api_initialized;
 
 static struct workqueue_struct *target_completion_wq;
-static struct kmem_cache *se_cmd_cache;
 static struct kmem_cache *se_sess_cache;
 struct kmem_cache *se_tmr_req_cache;
 struct kmem_cache *se_ua_cache;
@@ -82,24 +81,18 @@ static int transport_generic_get_mem(struct se_cmd *cmd);
 static void transport_put_cmd(struct se_cmd *cmd);
 static void transport_remove_cmd_from_queue(struct se_cmd *cmd);
 static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq);
-static void transport_generic_request_failure(struct se_cmd *, int, int);
+static void transport_generic_request_failure(struct se_cmd *);
 static void target_complete_ok_work(struct work_struct *work);
 
 int init_se_kmem_caches(void)
 {
-        se_cmd_cache = kmem_cache_create("se_cmd_cache",
-                        sizeof(struct se_cmd), __alignof__(struct se_cmd), 0, NULL);
-        if (!se_cmd_cache) {
-                pr_err("kmem_cache_create for struct se_cmd failed\n");
-                goto out;
-        }
         se_tmr_req_cache = kmem_cache_create("se_tmr_cache",
                         sizeof(struct se_tmr_req), __alignof__(struct se_tmr_req),
                         0, NULL);
         if (!se_tmr_req_cache) {
                 pr_err("kmem_cache_create() for struct se_tmr_req"
                                 " failed\n");
-                goto out_free_cmd_cache;
+                goto out;
         }
         se_sess_cache = kmem_cache_create("se_sess_cache",
                         sizeof(struct se_session), __alignof__(struct se_session),
@@ -182,8 +175,6 @@ out_free_sess_cache:
         kmem_cache_destroy(se_sess_cache);
 out_free_tmr_req_cache:
         kmem_cache_destroy(se_tmr_req_cache);
-out_free_cmd_cache:
-        kmem_cache_destroy(se_cmd_cache);
 out:
         return -ENOMEM;
 }
@@ -191,7 +182,6 @@ out:
 void release_se_kmem_caches(void)
 {
         destroy_workqueue(target_completion_wq);
-        kmem_cache_destroy(se_cmd_cache);
         kmem_cache_destroy(se_tmr_req_cache);
         kmem_cache_destroy(se_sess_cache);
         kmem_cache_destroy(se_ua_cache);
@@ -680,9 +670,9 @@ void transport_complete_sync_cache(struct se_cmd *cmd, int good)
                 task->task_scsi_status = GOOD;
         } else {
                 task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
-                task->task_error_status = PYX_TRANSPORT_ILLEGAL_REQUEST;
-                task->task_se_cmd->transport_error_status =
-                                        PYX_TRANSPORT_ILLEGAL_REQUEST;
+                task->task_se_cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+
         }
 
         transport_complete_task(task, good);
@@ -693,7 +683,7 @@ static void target_complete_failure_work(struct work_struct *work)
 {
         struct se_cmd *cmd = container_of(work, struct se_cmd, work);
 
-        transport_generic_request_failure(cmd, 1, 1);
+        transport_generic_request_failure(cmd);
 }
 
 /*      transport_complete_task():
@@ -755,10 +745,11 @@ void transport_complete_task(struct se_task *task, int success)
         if (cmd->t_tasks_failed) {
                 if (!task->task_error_status) {
                         task->task_error_status =
-                                PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
-                        cmd->transport_error_status =
-                                PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                        cmd->scsi_sense_reason =
+                                TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
                 }
+
                 INIT_WORK(&cmd->work, target_complete_failure_work);
         } else {
                 atomic_set(&cmd->t_transport_complete, 1);
@@ -1335,23 +1326,17 @@ struct se_device *transport_add_device_to_core_hba(
         dev->se_hba             = hba;
         dev->se_sub_dev         = se_dev;
         dev->transport          = transport;
-        atomic_set(&dev->active_cmds, 0);
         INIT_LIST_HEAD(&dev->dev_list);
         INIT_LIST_HEAD(&dev->dev_sep_list);
         INIT_LIST_HEAD(&dev->dev_tmr_list);
         INIT_LIST_HEAD(&dev->execute_task_list);
         INIT_LIST_HEAD(&dev->delayed_cmd_list);
-        INIT_LIST_HEAD(&dev->ordered_cmd_list);
         INIT_LIST_HEAD(&dev->state_task_list);
         INIT_LIST_HEAD(&dev->qf_cmd_list);
         spin_lock_init(&dev->execute_task_lock);
         spin_lock_init(&dev->delayed_cmd_lock);
-        spin_lock_init(&dev->ordered_cmd_lock);
-        spin_lock_init(&dev->state_task_lock);
-        spin_lock_init(&dev->dev_alua_lock);
         spin_lock_init(&dev->dev_reservation_lock);
         spin_lock_init(&dev->dev_status_lock);
-        spin_lock_init(&dev->dev_status_thr_lock);
         spin_lock_init(&dev->se_port_lock);
         spin_lock_init(&dev->se_tmr_lock);
         spin_lock_init(&dev->qf_cmd_lock);
@@ -1507,7 +1492,6 @@ void transport_init_se_cmd(
 {
         INIT_LIST_HEAD(&cmd->se_lun_node);
         INIT_LIST_HEAD(&cmd->se_delayed_node);
-        INIT_LIST_HEAD(&cmd->se_ordered_node);
         INIT_LIST_HEAD(&cmd->se_qf_node);
         INIT_LIST_HEAD(&cmd->se_queue_node);
         INIT_LIST_HEAD(&cmd->se_cmd_list);
@@ -1573,6 +1557,8 @@ int transport_generic_allocate_tasks(
                 pr_err("Received SCSI CDB with command_size: %d that"
                         " exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
                         scsi_command_size(cdb), SCSI_MAX_VARLEN_CDB_SIZE);
+                cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
                 return -EINVAL;
         }
         /*
@@ -1588,6 +1574,9 @@ int transport_generic_allocate_tasks(
                                 " %u > sizeof(cmd->__t_task_cdb): %lu ops\n",
                                 scsi_command_size(cdb),
                                 (unsigned long)sizeof(cmd->__t_task_cdb));
+                        cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+                        cmd->scsi_sense_reason =
+                                        TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
                         return -ENOMEM;
                 }
         } else
@@ -1658,11 +1647,9 @@ int transport_handle_cdb_direct(
          * and call transport_generic_request_failure() if necessary..
          */
         ret = transport_generic_new_cmd(cmd);
-        if (ret < 0) {
-                cmd->transport_error_status = ret;
-                transport_generic_request_failure(cmd, 0,
-                                (cmd->data_direction != DMA_TO_DEVICE));
-        }
+        if (ret < 0)
+                transport_generic_request_failure(cmd);
+
         return 0;
 }
 EXPORT_SYMBOL(transport_handle_cdb_direct);
@@ -1798,20 +1785,16 @@ static int transport_stop_tasks_for_cmd(struct se_cmd *cmd)
 /*
  * Handle SAM-esque emulation for generic transport request failures.
  */
-static void transport_generic_request_failure(
-        struct se_cmd *cmd,
-        int complete,
-        int sc)
+static void transport_generic_request_failure(struct se_cmd *cmd)
 {
         int ret = 0;
 
         pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
                 " CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
                 cmd->t_task_cdb[0]);
-        pr_debug("-----[ i_state: %d t_state: %d transport_error_status: %d\n",
+        pr_debug("-----[ i_state: %d t_state: %d scsi_sense_reason: %d\n",
                 cmd->se_tfo->get_cmd_state(cmd),
-                cmd->t_state,
-                cmd->transport_error_status);
+                cmd->t_state, cmd->scsi_sense_reason);
         pr_debug("-----[ t_tasks: %d t_task_cdbs_left: %d"
                 " t_task_cdbs_sent: %d t_task_cdbs_ex_left: %d --"
                 " t_transport_active: %d t_transport_stop: %d"
@@ -1829,46 +1812,19 @@ static void transport_generic_request_failure(
         if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
                 transport_complete_task_attr(cmd);
 
-        if (complete) {
-                cmd->transport_error_status = PYX_TRANSPORT_LU_COMM_FAILURE;
-        }
-
-        switch (cmd->transport_error_status) {
-        case PYX_TRANSPORT_UNKNOWN_SAM_OPCODE:
-                cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
-                break;
-        case PYX_TRANSPORT_REQ_TOO_MANY_SECTORS:
-                cmd->scsi_sense_reason = TCM_SECTOR_COUNT_TOO_MANY;
-                break;
-        case PYX_TRANSPORT_INVALID_CDB_FIELD:
-                cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
-                break;
-        case PYX_TRANSPORT_INVALID_PARAMETER_LIST:
-                cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
-                break;
-        case PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES:
-                if (!sc)
-                        transport_new_cmd_failure(cmd);
-                /*
-                 * Currently for PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES,
-                 * we force this session to fall back to session
-                 * recovery.
-                 */
-                cmd->se_tfo->fall_back_to_erl0(cmd->se_sess);
-                cmd->se_tfo->stop_session(cmd->se_sess, 0, 0);
-
-                goto check_stop;
-        case PYX_TRANSPORT_LU_COMM_FAILURE:
-        case PYX_TRANSPORT_ILLEGAL_REQUEST:
-                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-                break;
-        case PYX_TRANSPORT_UNKNOWN_MODE_PAGE:
-                cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE;
-                break;
-        case PYX_TRANSPORT_WRITE_PROTECTED:
-                cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
+        switch (cmd->scsi_sense_reason) {
+        case TCM_NON_EXISTENT_LUN:
+        case TCM_UNSUPPORTED_SCSI_OPCODE:
+        case TCM_INVALID_CDB_FIELD:
+        case TCM_INVALID_PARAMETER_LIST:
+        case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
+        case TCM_UNKNOWN_MODE_PAGE:
+        case TCM_WRITE_PROTECTED:
+        case TCM_CHECK_CONDITION_ABORT_CMD:
+        case TCM_CHECK_CONDITION_UNIT_ATTENTION:
+        case TCM_CHECK_CONDITION_NOT_READY:
                 break;
-        case PYX_TRANSPORT_RESERVATION_CONFLICT:
+        case TCM_RESERVATION_CONFLICT:
                 /*
                  * No SENSE Data payload for this case, set SCSI Status
                  * and queue the response to $FABRIC_MOD.
@@ -1893,15 +1849,9 @@ static void transport_generic_request_failure(
                 if (ret == -EAGAIN || ret == -ENOMEM)
                         goto queue_full;
                 goto check_stop;
-        case PYX_TRANSPORT_USE_SENSE_REASON:
-                /*
-                 * struct se_cmd->scsi_sense_reason already set
-                 */
-                break;
         default:
                 pr_err("Unknown transport error for CDB 0x%02x: %d\n",
-                        cmd->t_task_cdb[0],
-                        cmd->transport_error_status);
+                        cmd->t_task_cdb[0], cmd->scsi_sense_reason);
                 cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
                 break;
         }
@@ -1912,14 +1862,10 @@ static void transport_generic_request_failure(
          * transport_send_check_condition_and_sense() after handling
          * possible unsoliticied write data payloads.
          */
-        if (!sc && !cmd->se_tfo->new_cmd_map)
-                transport_new_cmd_failure(cmd);
-        else {
-                ret = transport_send_check_condition_and_sense(cmd,
-                                cmd->scsi_sense_reason, 0);
-                if (ret == -EAGAIN || ret == -ENOMEM)
-                        goto queue_full;
-        }
+        ret = transport_send_check_condition_and_sense(cmd,
+                        cmd->scsi_sense_reason, 0);
+        if (ret == -EAGAIN || ret == -ENOMEM)
+                goto queue_full;
 
 check_stop:
         transport_lun_remove_cmd(cmd);
@@ -2002,19 +1948,12 @@ static inline int transport_execute_task_attr(struct se_cmd *cmd)
          * to allow the passed struct se_cmd list of tasks to the front of the list.
          */
          if (cmd->sam_task_attr == MSG_HEAD_TAG) {
-                atomic_inc(&cmd->se_dev->dev_hoq_count);
-                smp_mb__after_atomic_inc();
                 pr_debug("Added HEAD_OF_QUEUE for CDB:"
                         " 0x%02x, se_ordered_id: %u\n",
                         cmd->t_task_cdb[0],
                         cmd->se_ordered_id);
                 return 1;
         } else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
-                spin_lock(&cmd->se_dev->ordered_cmd_lock);
-                list_add_tail(&cmd->se_ordered_node,
-                                &cmd->se_dev->ordered_cmd_list);
-                spin_unlock(&cmd->se_dev->ordered_cmd_lock);
-
                 atomic_inc(&cmd->se_dev->dev_ordered_sync);
                 smp_mb__after_atomic_inc();
 
@@ -2076,9 +2015,9 @@ static int transport_execute_tasks(struct se_cmd *cmd)
 {
         int add_tasks;
 
-        if (se_dev_check_online(cmd->se_orig_obj_ptr) != 0) {
-                cmd->transport_error_status = PYX_TRANSPORT_LU_COMM_FAILURE;
-                transport_generic_request_failure(cmd, 0, 1);
+        if (se_dev_check_online(cmd->se_dev) != 0) {
+                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+                transport_generic_request_failure(cmd);
                 return 0;
         }
 
@@ -2163,14 +2102,13 @@ check_depth:
         else
                 error = dev->transport->do_task(task);
         if (error != 0) {
-                cmd->transport_error_status = error;
                 spin_lock_irqsave(&cmd->t_state_lock, flags);
                 task->task_flags &= ~TF_ACTIVE;
                 spin_unlock_irqrestore(&cmd->t_state_lock, flags);
                 atomic_set(&cmd->t_transport_sent, 0);
                 transport_stop_tasks_for_cmd(cmd);
                 atomic_inc(&dev->depth_left);
-                transport_generic_request_failure(cmd, 0, 1);
+                transport_generic_request_failure(cmd);
         }
 
         goto check_depth;
@@ -2178,19 +2116,6 @@ check_depth:
         return 0;
 }
 
-void transport_new_cmd_failure(struct se_cmd *se_cmd)
-{
-        unsigned long flags;
-        /*
-         * Any unsolicited data will get dumped for failed command inside of
-         * the fabric plugin
-         */
-        spin_lock_irqsave(&se_cmd->t_state_lock, flags);
-        se_cmd->se_cmd_flags |= SCF_SE_CMD_FAILED;
-        se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
-        spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
-}
-
 static inline u32 transport_get_sectors_6(
         unsigned char *cdb,
         struct se_cmd *cmd,
@@ -2213,10 +2138,15 @@ static inline u32 transport_get_sectors_6(
 
         /*
          * Everything else assume TYPE_DISK Sector CDB location.
-         * Use 8-bit sector value.
+         * Use 8-bit sector value.  SBC-3 says:
+         *
+         *   A TRANSFER LENGTH field set to zero specifies that 256
+         *   logical blocks shall be written.  Any other value
+         *   specifies the number of logical blocks that shall be
+         *   written.
          */
 type_disk:
-        return (u32)cdb[4];
+        return cdb[4] ? : 256;
 }
 
 static inline u32 transport_get_sectors_10(
@@ -2460,27 +2390,6 @@ static int transport_get_sense_data(struct se_cmd *cmd)
         return -1;
 }
 
-static int
-transport_handle_reservation_conflict(struct se_cmd *cmd)
-{
-        cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
-        cmd->se_cmd_flags |= SCF_SCSI_RESERVATION_CONFLICT;
-        cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
-        /*
-         * For UA Interlock Code 11b, a RESERVATION CONFLICT will
-         * establish a UNIT ATTENTION with PREVIOUS RESERVATION
-         * CONFLICT STATUS.
-         *
-         * See spc4r17, section 7.4.6 Control Mode Page, Table 349
-         */
-        if (cmd->se_sess &&
-            cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2)
-                core_scsi3_ua_allocate(cmd->se_sess->se_node_acl,
-                        cmd->orig_fe_lun, 0x2C,
-                        ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
-        return -EINVAL;
-}
-
 static inline long long transport_dev_end_lba(struct se_device *dev)
 {
         return dev->transport->get_blocks(dev) + 1;
@@ -2595,8 +2504,12 @@ static int transport_generic_cmd_sequencer(
          */
         if (su_dev->t10_pr.pr_ops.t10_reservation_check(cmd, &pr_reg_type) != 0) {
                 if (su_dev->t10_pr.pr_ops.t10_seq_non_holder(
-                                        cmd, cdb, pr_reg_type) != 0)
-                        return transport_handle_reservation_conflict(cmd);
+                                        cmd, cdb, pr_reg_type) != 0) {
+                        cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+                        cmd->se_cmd_flags |= SCF_SCSI_RESERVATION_CONFLICT;
+                        cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+                        return -EBUSY;
+                }
                 /*
                  * This means the CDB is allowed for the SCSI Initiator port
                  * when said port is *NOT* holding the legacy SPC-2 or
@@ -2658,7 +2571,8 @@ static int transport_generic_cmd_sequencer(
                         goto out_unsupported_cdb;
                 size = transport_get_size(sectors, cdb, cmd);
                 cmd->t_task_lba = transport_lba_32(cdb);
-                cmd->t_tasks_fua = (cdb[1] & 0x8);
+                if (cdb[1] & 0x8)
+                        cmd->se_cmd_flags |= SCF_FUA;
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
                 break;
         case WRITE_12:
@@ -2667,7 +2581,8 @@ static int transport_generic_cmd_sequencer(
                         goto out_unsupported_cdb;
                 size = transport_get_size(sectors, cdb, cmd);
                 cmd->t_task_lba = transport_lba_32(cdb);
-                cmd->t_tasks_fua = (cdb[1] & 0x8);
+                if (cdb[1] & 0x8)
+                        cmd->se_cmd_flags |= SCF_FUA;
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
                 break;
         case WRITE_16:
@@ -2676,12 +2591,13 @@ static int transport_generic_cmd_sequencer(
                         goto out_unsupported_cdb;
                 size = transport_get_size(sectors, cdb, cmd);
                 cmd->t_task_lba = transport_lba_64(cdb);
-                cmd->t_tasks_fua = (cdb[1] & 0x8);
+                if (cdb[1] & 0x8)
+                        cmd->se_cmd_flags |= SCF_FUA;
                 cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
                 break;
         case XDWRITEREAD_10:
                 if ((cmd->data_direction != DMA_TO_DEVICE) ||
-                    !(cmd->t_tasks_bidi))
+                    !(cmd->se_cmd_flags & SCF_BIDI))
                         goto out_invalid_cdb_field;
                 sectors = transport_get_sectors_10(cdb, cmd, &sector_ret);
                 if (sector_ret)
@@ -2700,7 +2616,8 @@ static int transport_generic_cmd_sequencer(
                  * Setup BIDI XOR callback to be run after I/O completion.
                  */
                 cmd->transport_complete_callback = &transport_xor_callback;
-                cmd->t_tasks_fua = (cdb[1] & 0x8);
+                if (cdb[1] & 0x8)
+                        cmd->se_cmd_flags |= SCF_FUA;
                 break;
         case VARIABLE_LENGTH_CMD:
                 service_action = get_unaligned_be16(&cdb[8]);
@@ -2728,7 +2645,8 @@ static int transport_generic_cmd_sequencer(
                          * completion.
                          */
                         cmd->transport_complete_callback = &transport_xor_callback;
-                        cmd->t_tasks_fua = (cdb[10] & 0x8);
+                        if (cdb[1] & 0x8)
+                                cmd->se_cmd_flags |= SCF_FUA;
                         break;
                 case WRITE_SAME_32:
                         sectors = transport_get_sectors_32(cdb, cmd, &sector_ret);
@@ -3171,18 +3089,13 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
                         " SIMPLE: %u\n", dev->dev_cur_ordered_id,
                         cmd->se_ordered_id);
         } else if (cmd->sam_task_attr == MSG_HEAD_TAG) {
-                atomic_dec(&dev->dev_hoq_count);
-                smp_mb__after_atomic_dec();
                 dev->dev_cur_ordered_id++;
                 pr_debug("Incremented dev_cur_ordered_id: %u for"
                         " HEAD_OF_QUEUE: %u\n", dev->dev_cur_ordered_id,
                         cmd->se_ordered_id);
         } else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
-                spin_lock(&dev->ordered_cmd_lock);
-                list_del(&cmd->se_ordered_node);
                 atomic_dec(&dev->dev_ordered_sync);
                 smp_mb__after_atomic_dec();
-                spin_unlock(&dev->ordered_cmd_lock);
 
                 dev->dev_cur_ordered_id++;
                 pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED:"
@@ -3495,6 +3408,18 @@ int transport_generic_map_mem_to_cmd(
 
         if ((cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) ||
             (cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB)) {
+                /*
+                 * Reject SCSI data overflow with map_mem_to_cmd() as incoming
+                 * scatterlists already have been set to follow what the fabric
+                 * passes for the original expected data transfer length.
+                 */
+                if (cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
+                        pr_warn("Rejecting SCSI DATA overflow for fabric using"
+                                " SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC\n");
+                        cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+                        cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                        return -EINVAL;
+                }
 
                 cmd->t_data_sg = sgl;
                 cmd->t_data_nents = sgl_count;
@@ -3813,7 +3738,7 @@ int transport_generic_new_cmd(struct se_cmd *cmd)
             cmd->data_length) {
                 ret = transport_generic_get_mem(cmd);
                 if (ret < 0)
-                        return ret;
+                        goto out_fail;
         }
 
         /*
@@ -3842,8 +3767,15 @@ int transport_generic_new_cmd(struct se_cmd *cmd)
                 task_cdbs = transport_allocate_control_task(cmd);
         }
 
-        if (task_cdbs <= 0)
+        if (task_cdbs < 0)
                 goto out_fail;
+        else if (!task_cdbs && (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)) {
+                cmd->t_state = TRANSPORT_COMPLETE;
+                atomic_set(&cmd->t_transport_active, 1);
+                INIT_WORK(&cmd->work, target_complete_ok_work);
+                queue_work(target_completion_wq, &cmd->work);
+                return 0;
+        }
 
         if (set_counts) {
                 atomic_inc(&cmd->t_fe_count);
@@ -3929,7 +3861,7 @@ static int transport_generic_write_pending(struct se_cmd *cmd)
         else if (ret < 0)
                 return ret;
 
-        return PYX_TRANSPORT_WRITE_PENDING;
+        return 1;
 
 queue_full:
         pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd);
@@ -4602,9 +4534,6 @@ void transport_send_task_abort(struct se_cmd *cmd)
                 if (cmd->se_tfo->write_pending_status(cmd) != 0) {
                         atomic_inc(&cmd->t_transport_aborted);
                         smp_mb__after_atomic_inc();
-                        cmd->scsi_status = SAM_STAT_TASK_ABORTED;
-                        transport_new_cmd_failure(cmd);
-                        return;
                 }
         }
         cmd->scsi_status = SAM_STAT_TASK_ABORTED;
@@ -4670,8 +4599,6 @@ static int transport_processing_thread(void *param)
         struct se_cmd *cmd;
         struct se_device *dev = (struct se_device *) param;
 
-        set_user_nice(current, -20);
-
         while (!kthread_should_stop()) {
                 ret = wait_event_interruptible(dev->dev_queue_obj.thread_wq,
                                 atomic_read(&dev->dev_queue_obj.queue_cnt) ||
@@ -4698,18 +4625,13 @@ get_cmd:
                         }
                         ret = cmd->se_tfo->new_cmd_map(cmd);
                         if (ret < 0) {
-                                cmd->transport_error_status = ret;
-                                transport_generic_request_failure(cmd,
-                                                0, (cmd->data_direction !=
-                                                    DMA_TO_DEVICE));
+                                transport_generic_request_failure(cmd);
                                 break;
                         }
                         ret = transport_generic_new_cmd(cmd);
                         if (ret < 0) {
-                                cmd->transport_error_status = ret;
-                                transport_generic_request_failure(cmd,
-                                        0, (cmd->data_direction !=
-                                         DMA_TO_DEVICE));
+                                transport_generic_request_failure(cmd);
+                                break;
                         }
                         break;
                 case TRANSPORT_PROCESS_WRITE:
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 4fac37c4c615..71fc9cea5dc9 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -200,7 +200,7 @@ int ft_write_pending(struct se_cmd *se_cmd)
         lport = ep->lp;
         fp = fc_frame_alloc(lport, sizeof(*txrdy));
         if (!fp)
-                return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+                return -ENOMEM; /* Signal QUEUE_FULL */
 
         txrdy = fc_frame_payload_get(fp, sizeof(*txrdy));
         memset(txrdy, 0, sizeof(*txrdy));
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 5f770412ca40..9402b7387cac 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -436,8 +436,7 @@ static void ft_del_lport(struct se_wwn *wwn)
         struct ft_lport_acl *lacl = container_of(wwn,
                                 struct ft_lport_acl, fc_lport_wwn);
 
-        pr_debug("del lport %s\n",
-                        config_item_name(&wwn->wwn_group.cg_item));
+        pr_debug("del lport %s\n", lacl->name);
         mutex_lock(&ft_lport_lock);
         list_del(&lacl->list);
         mutex_unlock(&ft_lport_lock);
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e8c564a53346..a8078d0638fa 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1458,6 +1458,16 @@ static const struct usb_device_id acm_ids[] = {
         },
         { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
         },
+        /* Motorola H24 HSPA module: */
+        { USB_DEVICE(0x22b8, 0x2d91) }, /* modem                                */
+        { USB_DEVICE(0x22b8, 0x2d92) }, /* modem           + diagnostics        */
+        { USB_DEVICE(0x22b8, 0x2d93) }, /* modem + AT port                      */
+        { USB_DEVICE(0x22b8, 0x2d95) }, /* modem + AT port + diagnostics        */
+        { USB_DEVICE(0x22b8, 0x2d96) }, /* modem                         + NMEA */
+        { USB_DEVICE(0x22b8, 0x2d97) }, /* modem           + diagnostics + NMEA */
+        { USB_DEVICE(0x22b8, 0x2d99) }, /* modem + AT port               + NMEA */
+        { USB_DEVICE(0x22b8, 0x2d9a) }, /* modem + AT port + diagnostics + NMEA */
+
         { USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */
         .driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on
                                            data interface instead of
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 717ebc9ff941..600d82348511 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -264,7 +264,7 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
                 ret = -ENODEV;
                 goto err0;
         }
-        dwc->revision = reg & DWC3_GSNPSREV_MASK;
+        dwc->revision = reg;
 
         dwc3_core_soft_reset(dwc);
 
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 596a0b464e61..4dff83d2f265 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -130,9 +130,6 @@ ep_matches (
                         num_req_streams = ep_comp->bmAttributes & 0x1f;
                         if (num_req_streams > ep->max_streams)
                                 return 0;
-                        /* Update the ep_comp descriptor if needed */
-                        if (num_req_streams != ep->max_streams)
-                                ep_comp->bmAttributes = ep->max_streams;
                 }
 
         }
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index c39d58860fa0..1a6f415c0d02 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2975,6 +2975,7 @@ static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
         fsg_common_put(common);
         usb_free_descriptors(fsg->function.descriptors);
         usb_free_descriptors(fsg->function.hs_descriptors);
+        usb_free_descriptors(fsg->function.ss_descriptors);
         kfree(fsg);
 }
 
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index a7dc1e1d45f2..2ac4ac2e4ef9 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -18,7 +18,7 @@
 
 #include "isp1760-hcd.h"
 
-#ifdef CONFIG_OF
+#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
@@ -31,7 +31,7 @@
 #include <linux/pci.h>
 #endif
 
-#ifdef CONFIG_OF
+#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 struct isp1760 {
         struct usb_hcd *hcd;
         int rst_gpio;
@@ -437,7 +437,7 @@ static int __init isp1760_init(void)
         ret = platform_driver_register(&isp1760_plat_driver);
         if (!ret)
                 any_ret = 0;
-#ifdef CONFIG_OF
+#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
         ret = platform_driver_register(&isp1760_of_driver);
         if (!ret)
                 any_ret = 0;
@@ -457,7 +457,7 @@ module_init(isp1760_init);
 static void __exit isp1760_exit(void)
 {
         platform_driver_unregister(&isp1760_plat_driver);
-#ifdef CONFIG_OF
+#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
         platform_driver_unregister(&isp1760_of_driver);
 #endif
 #ifdef CONFIG_PCI
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 60ddba8066ea..79cb0af779fa 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -774,6 +774,10 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
                         if (musb->double_buffer_not_ok)
                                 musb_writew(epio, MUSB_TXMAXP,
                                                 hw_ep->max_packet_sz_tx);
+                        else if (can_bulk_split(musb, qh->type))
+                                musb_writew(epio, MUSB_TXMAXP, packet_sz
+                                        | ((hw_ep->max_packet_sz_tx /
+                                                packet_sz) - 1) << 11);
                         else
                                 musb_writew(epio, MUSB_TXMAXP,
                                                 qh->maxpacket |
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 053f86d70009..ad96a3896729 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -349,7 +349,7 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
                 if (mod->irq_attch)
                         intenb1 |= ATTCHE;
 
-                if (mod->irq_attch)
+                if (mod->irq_dtch)
                         intenb1 |= DTCHE;
 
                 if (mod->irq_sign)
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index bade761a1e52..7955de589951 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1267,6 +1267,7 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv)
                 dev_err(dev, "Failed to create hcd\n");
                 return -ENOMEM;
         }
+        hcd->has_tt = 1; /* for low/full speed */
 
         pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL);
         if (!pipe_info) {
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e3426602dc82..6dd64534fad0 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -663,7 +663,12 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x01) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x02) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x03) },
-        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x08) },
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x10) },
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x12) },
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x13) },
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x01) },  /* E398 3G Modem */
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x02) },  /* E398 3G PC UI Interface */
+        { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x03) },  /* E398 3G Application Interface */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) },
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 8e964b91c447..284798aaf8b1 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -166,7 +166,7 @@ retry:
         /*
          * Get IO TLB memory from any location.
          */
-        xen_io_tlb_start = alloc_bootmem(bytes);
+        xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
         if (!xen_io_tlb_start) {
                 m = "Cannot allocate Xen-SWIOTLB buffer!\n";
                 goto error;
@@ -179,7 +179,7 @@ retry:
                                bytes,
                                xen_io_tlb_nslabs);
         if (rc) {
-                free_bootmem(__pa(xen_io_tlb_start), bytes);
+                free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
                 m = "Failed to get contiguous memory for DMA from Xen!\n"\
                     "You either: don't have the permissions, do not have"\
                     " enough free memory under 4GB, or the hypervisor memory"\
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index b3b8f2f3ad10..ede860f921df 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -621,15 +621,6 @@ static struct xenbus_watch *find_watch(const char *token)
         return NULL;
 }
 
-static void xs_reset_watches(void)
-{
-        int err;
-
-        err = xs_error(xs_single(XBT_NIL, XS_RESET_WATCHES, "", NULL));
-        if (err && err != -EEXIST)
-                printk(KERN_WARNING "xs_reset_watches failed: %d\n", err);
-}
-
 /* Register callback to watch this node. */
 int register_xenbus_watch(struct xenbus_watch *watch)
 {
@@ -906,9 +897,5 @@ int xs_init(void)
         if (IS_ERR(task))
                 return PTR_ERR(task);
 
-        /* shutdown watches for kexec boot */
-        if (xen_hvm_domain())
-                xs_reset_watches();
-
         return 0;
 }