Merge commit 'v3.2-rc6' into x86/platform

123 files changed, 1651 insertions, 1397 deletions

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/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 11b41fd40c27..5ccf142ef0b8 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -188,7 +188,7 @@ config BT_MRVL
           The core driver to support Marvell Bluetooth devices.
 
           This driver is required if you want to support
-          Marvell Bluetooth devices, such as 8688/8787.
+          Marvell Bluetooth devices, such as 8688/8787/8797.
 
           Say Y here to compile Marvell Bluetooth driver
           into the kernel or say M to compile it as module.
@@ -201,8 +201,8 @@ config BT_MRVL_SDIO
           The driver for Marvell Bluetooth chipsets with SDIO interface.
 
           This driver is required if you want to use Marvell Bluetooth
-          devices with SDIO interface. Currently SD8688/SD8787 chipsets are
-          supported.
+          devices with SDIO interface. Currently SD8688/SD8787/SD8797
+          chipsets are supported.
 
           Say Y here to compile support for Marvell BT-over-SDIO driver
           into the kernel or say M to compile it as module.
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 9ef48167e2cf..27b74b0d547b 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -65,7 +65,7 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
         .io_port_1 = 0x01,
         .io_port_2 = 0x02,
 };
-static const struct btmrvl_sdio_card_reg btmrvl_reg_8787 = {
+static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
         .cfg = 0x00,
         .host_int_mask = 0x02,
         .host_intstatus = 0x03,
@@ -92,7 +92,14 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
         .helper         = NULL,
         .firmware       = "mrvl/sd8787_uapsta.bin",
-        .reg            = &btmrvl_reg_8787,
+        .reg            = &btmrvl_reg_87xx,
+        .sd_blksz_fw_dl = 256,
+};
+
+static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
+        .helper         = NULL,
+        .firmware       = "mrvl/sd8797_uapsta.bin",
+        .reg            = &btmrvl_reg_87xx,
         .sd_blksz_fw_dl = 256,
 };
 
@@ -103,6 +110,9 @@ static const struct sdio_device_id btmrvl_sdio_ids[] = {
         /* Marvell SD8787 Bluetooth device */
         { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
                         .driver_data = (unsigned long) &btmrvl_sdio_sd8787 },
+        /* Marvell SD8797 Bluetooth device */
+        { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
+                        .driver_data = (unsigned long) &btmrvl_sdio_sd8797 },
 
         { }     /* Terminating entry */
 };
@@ -1076,3 +1086,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_FIRMWARE("sd8688_helper.bin");
 MODULE_FIRMWARE("sd8688.bin");
 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
+MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fe4ebc375b3d..eabc437ce500 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -777,9 +777,8 @@ skip_waking:
                 usb_mark_last_busy(data->udev);
         }
 
-        usb_free_urb(urb);
-
 done:
+        usb_free_urb(urb);
         return err;
 }
 
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/Makefile b/drivers/gpio/Makefile
index dbcb0bcfd8da..4e018d6a7639 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_ARCH_DAVINCI)	+= gpio-davinci.o
 obj-$(CONFIG_GPIO_EP93XX)       += gpio-ep93xx.o
 obj-$(CONFIG_GPIO_IT8761E)      += gpio-it8761e.o
 obj-$(CONFIG_GPIO_JANZ_TTL)     += gpio-janz-ttl.o
-obj-$(CONFIG_MACH_KS8695)       += gpio-ks8695.o
+obj-$(CONFIG_ARCH_KS8695)       += gpio-ks8695.o
 obj-$(CONFIG_GPIO_LANGWELL)     += gpio-langwell.o
 obj-$(CONFIG_ARCH_LPC32XX)      += gpio-lpc32xx.o
 obj-$(CONFIG_GPIO_MAX730X)      += gpio-max730x.o
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_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index 3f6343502d1f..5ff561d4e0b4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -140,7 +140,7 @@ 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;
@@ -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/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/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c0c7820d4c46..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;
@@ -3524,7 +3527,7 @@ found:
         return 0;
 }
 
-int dmar_parse_rmrr_atsr_dev(void)
+int __init dmar_parse_rmrr_atsr_dev(void)
 {
         struct dmar_rmrr_unit *rmrr, *rmrr_n;
         struct dmar_atsr_unit *atsr, *atsr_n;
@@ -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/iommu/intr_remapping.c b/drivers/iommu/intr_remapping.c
index 07c9f189f314..6777ca049471 100644
--- a/drivers/iommu/intr_remapping.c
+++ b/drivers/iommu/intr_remapping.c
@@ -773,7 +773,7 @@ int __init parse_ioapics_under_ir(void)
         return ir_supported;
 }
 
-int ir_dev_scope_init(void)
+int __init ir_dev_scope_init(void)
 {
         if (!intr_remapping_enabled)
                 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/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/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..87b6f079b6e0 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"
 
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 3d00e722efc9..cb60c4197e0a 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -644,8 +644,6 @@ static int sdhci_s3c_resume(struct platform_device *dev)
 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",
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/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index 1124ce0a1594..c136230d50bb 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -232,6 +232,7 @@ struct fec_enet_private {
         struct  platform_device *pdev;
 
         int     opened;
+        int     dev_id;
 
         /* Phylib and MDIO interface */
         struct  mii_bus *mii_bus;
@@ -837,7 +838,7 @@ static void __inline__ fec_get_mac(struct net_device *ndev)
 
         /* Adjust MAC if using macaddr */
         if (iap == macaddr)
-                 ndev->dev_addr[ETH_ALEN-1] = macaddr[ETH_ALEN-1] + fep->pdev->id;
+                 ndev->dev_addr[ETH_ALEN-1] = macaddr[ETH_ALEN-1] + fep->dev_id;
 }
 
 /* ------------------------------------------------------------------------- */
@@ -953,7 +954,7 @@ static int fec_enet_mii_probe(struct net_device *ndev)
         char mdio_bus_id[MII_BUS_ID_SIZE];
         char phy_name[MII_BUS_ID_SIZE + 3];
         int phy_id;
-        int dev_id = fep->pdev->id;
+        int dev_id = fep->dev_id;
 
         fep->phy_dev = NULL;
 
@@ -1031,7 +1032,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
          * mdio interface in board design, and need to be configured by
          * fec0 mii_bus.
          */
-        if ((id_entry->driver_data & FEC_QUIRK_ENET_MAC) && pdev->id > 0) {
+        if ((id_entry->driver_data & FEC_QUIRK_ENET_MAC) && fep->dev_id > 0) {
                 /* fec1 uses fec0 mii_bus */
                 fep->mii_bus = fec0_mii_bus;
                 return 0;
@@ -1063,7 +1064,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
         fep->mii_bus->read = fec_enet_mdio_read;
         fep->mii_bus->write = fec_enet_mdio_write;
         fep->mii_bus->reset = fec_enet_mdio_reset;
-        snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id + 1);
+        snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%x", fep->dev_id + 1);
         fep->mii_bus->priv = fep;
         fep->mii_bus->parent = &pdev->dev;
 
@@ -1521,6 +1522,7 @@ fec_probe(struct platform_device *pdev)
         int i, irq, ret = 0;
         struct resource *r;
         const struct of_device_id *of_id;
+        static int dev_id;
 
         of_id = of_match_device(fec_dt_ids, &pdev->dev);
         if (of_id)
@@ -1548,6 +1550,7 @@ fec_probe(struct platform_device *pdev)
 
         fep->hwp = ioremap(r->start, resource_size(r));
         fep->pdev = pdev;
+        fep->dev_id = dev_id++;
 
         if (!fep->hwp) {
                 ret = -ENOMEM;
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 52f4e8ad48e7..4d9f84b8ab97 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -183,28 +183,10 @@ void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
 }
 EXPORT_SYMBOL_GPL(fsl_pq_mdio_bus_name);
 
-/* Scan the bus in reverse, looking for an empty spot */
-static int fsl_pq_mdio_find_free(struct mii_bus *new_bus)
-{
-        int i;
-
-        for (i = PHY_MAX_ADDR; i > 0; i--) {
-                u32 phy_id;
-
-                if (get_phy_id(new_bus, i, &phy_id))
-                        return -1;
-
-                if (phy_id == 0xffffffff)
-                        break;
-        }
-
-        return i;
-}
-
 
-#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
 static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np)
 {
+#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
         struct gfar __iomem *enet_regs;
 
         /*
@@ -220,15 +202,15 @@ static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct devi
         } else if (of_device_is_compatible(np, "fsl,etsec2-mdio") ||
                         of_device_is_compatible(np, "fsl,etsec2-tbi")) {
                 return of_iomap(np, 1);
-        } else
-                return NULL;
-}
+        }
 #endif
+        return NULL;
+}
 
 
-#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
 static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id)
 {
+#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
         struct device_node *np = NULL;
         int err = 0;
 
@@ -261,9 +243,10 @@ static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id)
                 return err;
         else
                 return -EINVAL;
-}
+#else
+        return -ENODEV;
 #endif
-
+}
 
 static int fsl_pq_mdio_probe(struct platform_device *ofdev)
 {
@@ -339,19 +322,13 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev)
                         of_device_is_compatible(np, "fsl,etsec2-mdio") ||
                         of_device_is_compatible(np, "fsl,etsec2-tbi") ||
                         of_device_is_compatible(np, "gianfar")) {
-#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
                 tbipa = get_gfar_tbipa(regs, np);
                 if (!tbipa) {
                         err = -EINVAL;
                         goto err_free_irqs;
                 }
-#else
-                err = -ENODEV;
-                goto err_free_irqs;
-#endif
         } else if (of_device_is_compatible(np, "fsl,ucc-mdio") ||
                         of_device_is_compatible(np, "ucc_geth_phy")) {
-#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
                 u32 id;
                 static u32 mii_mng_master;
 
@@ -364,10 +341,6 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev)
                         mii_mng_master = id;
                         ucc_set_qe_mux_mii_mng(id - 1);
                 }
-#else
-                err = -ENODEV;
-                goto err_free_irqs;
-#endif
         } else {
                 err = -ENODEV;
                 goto err_free_irqs;
@@ -386,16 +359,6 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev)
         }
 
         if (tbiaddr == -1) {
-                out_be32(tbipa, 0);
-
-                tbiaddr = fsl_pq_mdio_find_free(new_bus);
-        }
-
-        /*
-         * We define TBIPA at 0 to be illegal, opting to fail for boards that
-         * have PHYs at 1-31, rather than change tbipa and rescan.
-         */
-        if (tbiaddr == 0) {
                 err = -EBUSY;
 
                 goto err_free_irqs;
diff --git a/drivers/net/ethernet/pasemi/Makefile b/drivers/net/ethernet/pasemi/Makefile
index 05db5434bafc..90497ffb1ac3 100644
--- a/drivers/net/ethernet/pasemi/Makefile
+++ b/drivers/net/ethernet/pasemi/Makefile
@@ -2,4 +2,5 @@
 # Makefile for the A Semi network device drivers.
 #
 
-obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o pasemi_mac_ethtool.o
+obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
+pasemi_mac_driver-objs := pasemi_mac.o pasemi_mac_ethtool.o
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 6f06aa10f0d7..67bf07819992 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1183,11 +1183,13 @@ static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
         return value;
 }
 
-static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
+static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
 {
-        RTL_W16(IntrMask, 0x0000);
+        void __iomem *ioaddr = tp->mmio_addr;
 
-        RTL_W16(IntrStatus, 0xffff);
+        RTL_W16(IntrMask, 0x0000);
+        RTL_W16(IntrStatus, tp->intr_event);
+        RTL_R8(ChipCmd);
 }
 
 static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
@@ -3933,8 +3935,6 @@ static void rtl_hw_reset(struct rtl8169_private *tp)
                         break;
                 udelay(100);
         }
-
-        rtl8169_init_ring_indexes(tp);
 }
 
 static int __devinit
@@ -4339,7 +4339,7 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp)
         void __iomem *ioaddr = tp->mmio_addr;
 
         /* Disable interrupts */
-        rtl8169_irq_mask_and_ack(ioaddr);
+        rtl8169_irq_mask_and_ack(tp);
 
         rtl_rx_close(tp);
 
@@ -4885,8 +4885,7 @@ static void rtl_hw_start_8168(struct net_device *dev)
         RTL_W16(IntrMitigate, 0x5151);
 
         /* Work around for RxFIFO overflow. */
-        if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
-            tp->mac_version == RTL_GIGA_MAC_VER_22) {
+        if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
                 tp->intr_event |= RxFIFOOver | PCSTimeout;
                 tp->intr_event &= ~RxOverflow;
         }
@@ -5076,6 +5075,11 @@ static void rtl_hw_start_8101(struct net_device *dev)
         void __iomem *ioaddr = tp->mmio_addr;
         struct pci_dev *pdev = tp->pci_dev;
 
+        if (tp->mac_version >= RTL_GIGA_MAC_VER_30) {
+                tp->intr_event &= ~RxFIFOOver;
+                tp->napi_event &= ~RxFIFOOver;
+        }
+
         if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
             tp->mac_version == RTL_GIGA_MAC_VER_16) {
                 int cap = pci_pcie_cap(pdev);
@@ -5342,7 +5346,7 @@ static void rtl8169_wait_for_quiescence(struct net_device *dev)
         /* Wait for any pending NAPI task to complete */
         napi_disable(&tp->napi);
 
-        rtl8169_irq_mask_and_ack(ioaddr);
+        rtl8169_irq_mask_and_ack(tp);
 
         tp->intr_mask = 0xffff;
         RTL_W16(IntrMask, tp->intr_event);
@@ -5389,14 +5393,16 @@ static void rtl8169_reset_task(struct work_struct *work)
         if (!netif_running(dev))
                 goto out_unlock;
 
+        rtl8169_hw_reset(tp);
+
         rtl8169_wait_for_quiescence(dev);
 
         for (i = 0; i < NUM_RX_DESC; i++)
                 rtl8169_mark_to_asic(tp->RxDescArray + i, rx_buf_sz);
 
         rtl8169_tx_clear(tp);
+        rtl8169_init_ring_indexes(tp);
 
-        rtl8169_hw_reset(tp);
         rtl_hw_start(dev);
         netif_wake_queue(dev);
         rtl8169_check_link_status(dev, tp, tp->mmio_addr);
@@ -5407,11 +5413,6 @@ out_unlock:
 
 static void rtl8169_tx_timeout(struct net_device *dev)
 {
-        struct rtl8169_private *tp = netdev_priv(dev);
-
-        rtl8169_hw_reset(tp);
-
-        /* Let's wait a bit while any (async) irq lands on */
         rtl8169_schedule_work(dev, rtl8169_reset_task);
 }
 
@@ -5804,6 +5805,10 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
          */
         status = RTL_R16(IntrStatus);
         while (status && status != 0xffff) {
+                status &= tp->intr_event;
+                if (!status)
+                        break;
+
                 handled = 1;
 
                 /* Handle all of the error cases first. These will reset
@@ -5818,27 +5823,9 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
                         switch (tp->mac_version) {
                         /* Work around for rx fifo overflow */
                         case RTL_GIGA_MAC_VER_11:
-                        case RTL_GIGA_MAC_VER_22:
-                        case RTL_GIGA_MAC_VER_26:
                                 netif_stop_queue(dev);
                                 rtl8169_tx_timeout(dev);
                                 goto done;
-                        /* Testers needed. */
-                        case RTL_GIGA_MAC_VER_17:
-                        case RTL_GIGA_MAC_VER_19:
-                        case RTL_GIGA_MAC_VER_20:
-                        case RTL_GIGA_MAC_VER_21:
-                        case RTL_GIGA_MAC_VER_23:
-                        case RTL_GIGA_MAC_VER_24:
-                        case RTL_GIGA_MAC_VER_27:
-                        case RTL_GIGA_MAC_VER_28:
-                        case RTL_GIGA_MAC_VER_31:
-                        /* Experimental science. Pktgen proof. */
-                        case RTL_GIGA_MAC_VER_12:
-                        case RTL_GIGA_MAC_VER_25:
-                                if (status == RxFIFOOver)
-                                        goto done;
-                                break;
                         default:
                                 break;
                         }
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 10826d8a2a2d..1187a1169eb2 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/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 89f829f5f725..f8a6853b692e 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -423,10 +423,8 @@ static int pptp_bind(struct socket *sock, struct sockaddr *uservaddr,
         lock_sock(sk);
 
         opt->src_addr = sp->sa_addr.pptp;
-        if (add_chan(po)) {
-                release_sock(sk);
+        if (add_chan(po))
                 error = -EBUSY;
-        }
 
         release_sock(sk);
         return error;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 93fbe6f40898..d2348a5a7809 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -286,7 +286,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
                         ath_start_ani(common);
         }
 
-        if (ath9k_hw_ops(ah)->antdiv_comb_conf_get && sc->ant_rx != 3) {
+        if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) {
                 struct ath_hw_antcomb_conf div_ant_conf;
                 u8 lna_conf;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index e12b48c2cff6..dd008b0e6417 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -191,6 +191,7 @@ static struct iwl_base_params iwl1000_base_params = {
         .chain_noise_scale = 1000,
         .wd_timeout = IWL_DEF_WD_TIMEOUT,
         .max_event_log_size = 128,
+        .wd_disable = true,
 };
 static struct iwl_ht_params iwl1000_ht_params = {
         .ht_greenfield_support = true,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index c511c98a89a8..f55fb2d1af52 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -364,6 +364,7 @@ static struct iwl_base_params iwl5000_base_params = {
         .wd_timeout = IWL_LONG_WD_TIMEOUT,
         .max_event_log_size = 512,
         .no_idle_support = true,
+        .wd_disable = true,
 };
 static struct iwl_ht_params iwl5000_ht_params = {
         .ht_greenfield_support = true,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index 58a381c01c89..a7a6def40d05 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -528,6 +528,24 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
         return 0;
 }
 
+void iwlagn_config_ht40(struct ieee80211_conf *conf,
+        struct iwl_rxon_context *ctx)
+{
+        if (conf_is_ht40_minus(conf)) {
+                ctx->ht.extension_chan_offset =
+                        IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+                ctx->ht.is_40mhz = true;
+        } else if (conf_is_ht40_plus(conf)) {
+                ctx->ht.extension_chan_offset =
+                        IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+                ctx->ht.is_40mhz = true;
+        } else {
+                ctx->ht.extension_chan_offset =
+                        IEEE80211_HT_PARAM_CHA_SEC_NONE;
+                ctx->ht.is_40mhz = false;
+        }
+}
+
 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
 {
         struct iwl_priv *priv = hw->priv;
@@ -586,19 +604,11 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
                                 ctx->ht.enabled = conf_is_ht(conf);
 
                         if (ctx->ht.enabled) {
-                                if (conf_is_ht40_minus(conf)) {
-                                        ctx->ht.extension_chan_offset =
-                                                IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-                                        ctx->ht.is_40mhz = true;
-                                } else if (conf_is_ht40_plus(conf)) {
-                                        ctx->ht.extension_chan_offset =
-                                                IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-                                        ctx->ht.is_40mhz = true;
-                                } else {
-                                        ctx->ht.extension_chan_offset =
-                                                IEEE80211_HT_PARAM_CHA_SEC_NONE;
-                                        ctx->ht.is_40mhz = false;
-                                }
+                                /* if HT40 is used, it should not change
+                                 * after associated except channel switch */
+                                if (iwl_is_associated_ctx(ctx) &&
+                                     !ctx->ht.is_40mhz)
+                                        iwlagn_config_ht40(conf, ctx);
                         } else
                                 ctx->ht.is_40mhz = false;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
index ed6283623932..4b2aa1da0953 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
@@ -1268,9 +1268,6 @@ int iwl_set_dynamic_key(struct iwl_priv *priv,
 
         switch (keyconf->cipher) {
         case WLAN_CIPHER_SUITE_TKIP:
-                keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-                keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-
                 if (sta)
                         addr = sta->addr;
                 else /* station mode case only */
@@ -1283,8 +1280,6 @@ int iwl_set_dynamic_key(struct iwl_priv *priv,
                                           seq.tkip.iv32, p1k, CMD_SYNC);
                 break;
         case WLAN_CIPHER_SUITE_CCMP:
-                keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-                /* fall through */
         case WLAN_CIPHER_SUITE_WEP40:
         case WLAN_CIPHER_SUITE_WEP104:
                 ret = iwlagn_send_sta_key(priv, keyconf, sta_id,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ccba69b7f8a7..bacc06c95e7a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2316,6 +2316,17 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                 return -EOPNOTSUPP;
         }
 
+        switch (key->cipher) {
+        case WLAN_CIPHER_SUITE_TKIP:
+                key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+                /* fall through */
+        case WLAN_CIPHER_SUITE_CCMP:
+                key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+                break;
+        default:
+                break;
+        }
+
         /*
          * We could program these keys into the hardware as well, but we
          * don't expect much multicast traffic in IBSS and having keys
@@ -2599,21 +2610,9 @@ static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
 
         /* Configure HT40 channels */
         ctx->ht.enabled = conf_is_ht(conf);
-        if (ctx->ht.enabled) {
-                if (conf_is_ht40_minus(conf)) {
-                        ctx->ht.extension_chan_offset =
-                                IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-                        ctx->ht.is_40mhz = true;
-                } else if (conf_is_ht40_plus(conf)) {
-                        ctx->ht.extension_chan_offset =
-                                IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-                        ctx->ht.is_40mhz = true;
-                } else {
-                        ctx->ht.extension_chan_offset =
-                                IEEE80211_HT_PARAM_CHA_SEC_NONE;
-                        ctx->ht.is_40mhz = false;
-                }
-        } else
+        if (ctx->ht.enabled)
+                iwlagn_config_ht40(conf, ctx);
+        else
                 ctx->ht.is_40mhz = false;
 
         if ((le16_to_cpu(ctx->staging.channel) != ch))
@@ -3499,9 +3498,10 @@ MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
 
-module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
+module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
 MODULE_PARM_DESC(wd_disable,
-                "Disable stuck queue watchdog timer (default: 0 [enabled])");
+                "Disable stuck queue watchdog timer 0=system default, "
+                "1=disable, 2=enable (default: 0)");
 
 /*
  * set bt_coex_active to true, uCode will do kill/defer
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index 5b936ec1a541..3856abaea507 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -86,6 +86,8 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
                              struct ieee80211_vif *vif,
                              struct ieee80211_bss_conf *bss_conf,
                              u32 changes);
+void iwlagn_config_ht40(struct ieee80211_conf *conf,
+                        struct iwl_rxon_context *ctx);
 
 /* uCode */
 int iwlagn_rx_calib_result(struct iwl_priv *priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 001fdf140abb..fcf54160e4ed 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1810,11 +1810,23 @@ void iwl_setup_watchdog(struct iwl_priv *priv)
 {
         unsigned int timeout = priv->cfg->base_params->wd_timeout;
 
-        if (timeout && !iwlagn_mod_params.wd_disable)
-                mod_timer(&priv->watchdog,
-                          jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout)));
-        else
-                del_timer(&priv->watchdog);
+        if (!iwlagn_mod_params.wd_disable) {
+                /* use system default */
+                if (timeout && !priv->cfg->base_params->wd_disable)
+                        mod_timer(&priv->watchdog,
+                                jiffies +
+                                msecs_to_jiffies(IWL_WD_TICK(timeout)));
+                else
+                        del_timer(&priv->watchdog);
+        } else {
+                /* module parameter overwrite default configuration */
+                if (timeout && iwlagn_mod_params.wd_disable == 2)
+                        mod_timer(&priv->watchdog,
+                                jiffies +
+                                msecs_to_jiffies(IWL_WD_TICK(timeout)));
+                else
+                        del_timer(&priv->watchdog);
+        }
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 137da3380704..f2fc288f3dd3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -113,6 +113,7 @@ struct iwl_lib_ops {
  * @shadow_reg_enable: HW shadhow register bit
  * @no_idle_support: do not support idle mode
  * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
+ * wd_disable: disable watchdog timer
  */
 struct iwl_base_params {
         int eeprom_size;
@@ -134,6 +135,7 @@ struct iwl_base_params {
         const bool shadow_reg_enable;
         const bool no_idle_support;
         const bool hd_v2;
+        const bool wd_disable;
 };
 /*
  * @advanced_bt_coexist: support advanced bt coexist
diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h
index 1f7a93c67c45..14eaf37ce3b1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-shared.h
+++ b/drivers/net/wireless/iwlwifi/iwl-shared.h
@@ -120,7 +120,7 @@ extern struct iwl_mod_params iwlagn_mod_params;
  * @restart_fw: restart firmware, default = 1
  * @plcp_check: enable plcp health check, default = true
  * @ack_check: disable ack health check, default = false
- * @wd_disable: enable stuck queue check, default = false
+ * @wd_disable: enable stuck queue check, default = 0
  * @bt_coex_active: enable bt coex, default = true
  * @led_mode: system default, default = 0
  * @no_sleep_autoadjust: disable autoadjust, default = true
@@ -141,7 +141,7 @@ struct iwl_mod_params {
         int restart_fw;
         bool plcp_check;
         bool ack_check;
-        bool wd_disable;
+        int  wd_disable;
         bool bt_coex_active;
         int led_mode;
         bool no_sleep_autoadjust;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
index 592a10ac5929..3b585aadabfc 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
@@ -569,7 +569,7 @@ static bool _rtl92ce_phy_set_rf_power_state(struct ieee80211_hw *hw,
                 }
         case ERFSLEEP:{
                         if (ppsc->rfpwr_state == ERFOFF)
-                                break;
+                                return false;
                         for (queue_id = 0, i = 0;
                              queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
                                 ring = &pcipriv->dev.tx_ring[queue_id];
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c b/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c
index 72852900df84..e49cf2244c75 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/phy.c
@@ -548,7 +548,7 @@ static bool _rtl92cu_phy_set_rf_power_state(struct ieee80211_hw *hw,
                 break;
         case ERFSLEEP:
                 if (ppsc->rfpwr_state == ERFOFF)
-                        break;
+                        return false;
                 for (queue_id = 0, i = 0;
                      queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
                         ring = &pcipriv->dev.tx_ring[queue_id];
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
index 3ac7af1c5509..0883349e1c83 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
@@ -3374,7 +3374,7 @@ bool rtl92d_phy_set_rf_power_state(struct ieee80211_hw *hw,
                 break;
         case ERFSLEEP:
                 if (ppsc->rfpwr_state == ERFOFF)
-                        break;
+                        return false;
 
                 for (queue_id = 0, i = 0;
                      queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/phy.c b/drivers/net/wireless/rtlwifi/rtl8192se/phy.c
index f27171af979c..f10ac1ad9087 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/phy.c
@@ -602,7 +602,7 @@ bool rtl92s_phy_set_rf_power_state(struct ieee80211_hw *hw,
                 }
         case ERFSLEEP:
                         if (ppsc->rfpwr_state == ERFOFF)
-                                break;
+                                return false;
 
                         for (queue_id = 0, i = 0;
                              queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 1ae270eed51a..15e332d08c8d 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1668,7 +1668,7 @@ static int __init netback_init(void)
                                              "netback/%u", group);
 
                 if (IS_ERR(netbk->task)) {
-                        printk(KERN_ALERT "kthread_run() fails at netback\n");
+                        printk(KERN_ALERT "kthread_create() fails at netback\n");
                         del_timer(&netbk->net_timer);
                         rc = PTR_ERR(netbk->task);
                         goto failed_init;
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/oprof.c b/drivers/oprofile/oprof.c
index dccd8636095c..f8c752e408a6 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -239,26 +239,45 @@ int oprofile_set_ulong(unsigned long *addr, unsigned long val)
         return err;
 }
 
+static int timer_mode;
+
 static int __init oprofile_init(void)
 {
         int err;
 
+        /* always init architecture to setup backtrace support */
         err = oprofile_arch_init(&oprofile_ops);
-        if (err < 0 || timer) {
-                printk(KERN_INFO "oprofile: using timer interrupt.\n");
+
+        timer_mode = err || timer;      /* fall back to timer mode on errors */
+        if (timer_mode) {
+                if (!err)
+                        oprofile_arch_exit();
                 err = oprofile_timer_init(&oprofile_ops);
                 if (err)
                         return err;
         }
-        return oprofilefs_register();
+
+        err = oprofilefs_register();
+        if (!err)
+                return 0;
+
+        /* failed */
+        if (timer_mode)
+                oprofile_timer_exit();
+        else
+                oprofile_arch_exit();
+
+        return err;
 }
 
 
 static void __exit oprofile_exit(void)
 {
-        oprofile_timer_exit();
         oprofilefs_unregister();
-        oprofile_arch_exit();
+        if (timer_mode)
+                oprofile_timer_exit();
+        else
+                oprofile_arch_exit();
 }
 
 
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index 3ef44624f510..878fba126582 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -110,6 +110,7 @@ int oprofile_timer_init(struct oprofile_operations *ops)
         ops->start = oprofile_hrtimer_start;
         ops->stop = oprofile_hrtimer_stop;
         ops->cpu_type = "timer";
+        printk(KERN_INFO "oprofile: using timer interrupt.\n");
         return 0;
 }
 
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 13ef8c37471d..dcdc1f4a4624 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -121,6 +121,7 @@ struct toshiba_acpi_dev {
         int illumination_supported:1;
         int video_supported:1;
         int fan_supported:1;
+        int system_event_supported:1;
 
         struct mutex mutex;
 };
@@ -724,7 +725,7 @@ static int keys_proc_show(struct seq_file *m, void *v)
         u32 hci_result;
         u32 value;
 
-        if (!dev->key_event_valid) {
+        if (!dev->key_event_valid && dev->system_event_supported) {
                 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
                 if (hci_result == HCI_SUCCESS) {
                         dev->key_event_valid = 1;
@@ -964,6 +965,8 @@ static int __devinit toshiba_acpi_add(struct acpi_device *acpi_dev)
 
         /* enable event fifo */
         hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
+        if (hci_result == HCI_SUCCESS)
+                dev->system_event_supported = 1;
 
         props.type = BACKLIGHT_PLATFORM;
         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
@@ -1032,12 +1035,15 @@ static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
 {
         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
         u32 hci_result, value;
+        int retries = 3;
 
-        if (event != 0x80)
+        if (!dev->system_event_supported || event != 0x80)
                 return;
+
         do {
                 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
-                if (hci_result == HCI_SUCCESS) {
+                switch (hci_result) {
+                case HCI_SUCCESS:
                         if (value == 0x100)
                                 continue;
                         /* act on key press; ignore key release */
@@ -1049,14 +1055,19 @@ static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
                                 pr_info("Unknown key %x\n",
                                        value);
                         }
-                } else if (hci_result == HCI_NOT_SUPPORTED) {
+                        break;
+                case HCI_NOT_SUPPORTED:
                         /* This is a workaround for an unresolved issue on
                          * some machines where system events sporadically
                          * become disabled. */
                         hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
                         pr_notice("Re-enabled hotkeys\n");
+                        /* fall through */
+                default:
+                        retries--;
+                        break;
                 }
-        } while (hci_result != HCI_EMPTY);
+        } while (retries && hci_result != HCI_EMPTY);
 }
 
 
diff --git a/drivers/power/intel_mid_battery.c b/drivers/power/intel_mid_battery.c
index cffcb7c00b00..01fa671ec97f 100644
--- a/drivers/power/intel_mid_battery.c
+++ b/drivers/power/intel_mid_battery.c
@@ -61,7 +61,8 @@ MODULE_PARM_DESC(debug, "Flag to enable PMIC Battery debug messages.");
 #define PMIC_BATT_CHR_SBATDET_MASK      (1 << 5)
 #define PMIC_BATT_CHR_SDCLMT_MASK       (1 << 6)
 #define PMIC_BATT_CHR_SUSBOVP_MASK      (1 << 7)
-#define PMIC_BATT_CHR_EXCPT_MASK        0xC6
+#define PMIC_BATT_CHR_EXCPT_MASK        0x86
+
 #define PMIC_BATT_ADC_ACCCHRG_MASK      (1 << 31)
 #define PMIC_BATT_ADC_ACCCHRGVAL_MASK   0x7FFFFFFF
 
@@ -304,11 +305,6 @@ static void pmic_battery_read_status(struct pmic_power_module_info *pbi)
                         pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
                         pmic_battery_log_event(BATT_EVENT_BATOVP_EXCPT);
                         batt_exception = 1;
-                } else if (r8 & PMIC_BATT_CHR_SDCLMT_MASK) {
-                        pbi->batt_health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
-                        pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
-                        pmic_battery_log_event(BATT_EVENT_DCLMT_EXCPT);
-                        batt_exception = 1;
                 } else if (r8 & PMIC_BATT_CHR_STEMP_MASK) {
                         pbi->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
                         pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
@@ -316,6 +312,10 @@ static void pmic_battery_read_status(struct pmic_power_module_info *pbi)
                         batt_exception = 1;
                 } else {
                         pbi->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+                        if (r8 & PMIC_BATT_CHR_SDCLMT_MASK) {
+                                /* PMIC will change charging current automatically */
+                                pmic_battery_log_event(BATT_EVENT_DCLMT_EXCPT);
+                        }
                 }
         }
 
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/class.c b/drivers/rtc/class.c
index e8326f26fa2f..dc4c2748bbc3 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -63,7 +63,7 @@ static int rtc_suspend(struct device *dev, pm_message_t mesg)
          */
         delta = timespec_sub(old_system, old_rtc);
         delta_delta = timespec_sub(delta, old_delta);
-        if (abs(delta_delta.tv_sec)  >= 2) {
+        if (delta_delta.tv_sec < -2 || delta_delta.tv_sec >= 2) {
                 /*
                  * if delta_delta is too large, assume time correction
                  * has occured and set old_delta to the current delta.
@@ -97,9 +97,8 @@ static int rtc_resume(struct device *dev)
         rtc_tm_to_time(&tm, &new_rtc.tv_sec);
         new_rtc.tv_nsec = 0;
 
-        if (new_rtc.tv_sec <= old_rtc.tv_sec) {
-                if (new_rtc.tv_sec < old_rtc.tv_sec)
-                        pr_debug("%s:  time travel!\n", dev_name(&rtc->dev));
+        if (new_rtc.tv_sec < old_rtc.tv_sec) {
+                pr_debug("%s:  time travel!\n", dev_name(&rtc->dev));
                 return 0;
         }
 
@@ -116,7 +115,8 @@ static int rtc_resume(struct device *dev)
         sleep_time = timespec_sub(sleep_time,
                         timespec_sub(new_system, old_system));
 
-        timekeeping_inject_sleeptime(&sleep_time);
+        if (sleep_time.tv_sec >= 0)
+                timekeeping_inject_sleeptime(&sleep_time);
         return 0;
 }
 
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 8e286259a007..fa4d9f324189 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -319,6 +319,20 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
 }
 EXPORT_SYMBOL_GPL(rtc_read_alarm);
 
+static int ___rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
+{
+        int err;
+
+        if (!rtc->ops)
+                err = -ENODEV;
+        else if (!rtc->ops->set_alarm)
+                err = -EINVAL;
+        else
+                err = rtc->ops->set_alarm(rtc->dev.parent, alarm);
+
+        return err;
+}
+
 static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
 {
         struct rtc_time tm;
@@ -342,14 +356,7 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
          * over right here, before we set the alarm.
          */
 
-        if (!rtc->ops)
-                err = -ENODEV;
-        else if (!rtc->ops->set_alarm)
-                err = -EINVAL;
-        else
-                err = rtc->ops->set_alarm(rtc->dev.parent, alarm);
-
-        return err;
+        return ___rtc_set_alarm(rtc, alarm);
 }
 
 int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
@@ -763,6 +770,20 @@ static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer)
         return 0;
 }
 
+static void rtc_alarm_disable(struct rtc_device *rtc)
+{
+        struct rtc_wkalrm alarm;
+        struct rtc_time tm;
+
+        __rtc_read_time(rtc, &tm);
+
+        alarm.time = rtc_ktime_to_tm(ktime_add(rtc_tm_to_ktime(tm),
+                                     ktime_set(300, 0)));
+        alarm.enabled = 0;
+
+        ___rtc_set_alarm(rtc, &alarm);
+}
+
 /**
  * rtc_timer_remove - Removes a rtc_timer from the rtc_device timerqueue
  * @rtc rtc device
@@ -784,8 +805,10 @@ static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer)
                 struct rtc_wkalrm alarm;
                 int err;
                 next = timerqueue_getnext(&rtc->timerqueue);
-                if (!next)
+                if (!next) {
+                        rtc_alarm_disable(rtc);
                         return;
+                }
                 alarm.time = rtc_ktime_to_tm(next->expires);
                 alarm.enabled = 1;
                 err = __rtc_set_alarm(rtc, &alarm);
@@ -847,7 +870,8 @@ again:
                 err = __rtc_set_alarm(rtc, &alarm);
                 if (err == -ETIME)
                         goto again;
-        }
+        } else
+                rtc_alarm_disable(rtc);
 
         mutex_unlock(&rtc->ops_lock);
 }
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/cio/chsc.c b/drivers/s390/cio/chsc.c
index 75c3f1f8fd43..a84631a7391d 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -529,10 +529,7 @@ __s390_vary_chpid_on(struct subchannel_id schid, void *data)
 int chsc_chp_vary(struct chp_id chpid, int on)
 {
         struct channel_path *chp = chpid_to_chp(chpid);
-        struct chp_link link;
 
-        memset(&link, 0, sizeof(struct chp_link));
-        link.chpid = chpid;
         /* Wait until previous actions have settled. */
         css_wait_for_slow_path();
         /*
@@ -542,10 +539,10 @@ int chsc_chp_vary(struct chp_id chpid, int on)
                 /* Try to update the channel path descritor. */
                 chsc_determine_base_channel_path_desc(chpid, &chp->desc);
                 for_each_subchannel_staged(s390_subchannel_vary_chpid_on,
-                                           __s390_vary_chpid_on, &link);
+                                           __s390_vary_chpid_on, &chpid);
         } else
                 for_each_subchannel_staged(s390_subchannel_vary_chpid_off,
-                                           NULL, &link);
+                                           NULL, &chpid);
 
         return 0;
 }
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 155a82bcb9e5..4a1ff5c2eb88 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -68,8 +68,13 @@ struct schib {
         __u8 mda[4];             /* model dependent area */
 } __attribute__ ((packed,aligned(4)));
 
+/*
+ * When rescheduled, todo's with higher values will overwrite those
+ * with lower values.
+ */
 enum sch_todo {
         SCH_TODO_NOTHING,
+        SCH_TODO_EVAL,
         SCH_TODO_UNREG,
 };
 
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 92d7324acb1c..21908e67bf67 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -195,51 +195,6 @@ void css_sch_device_unregister(struct subchannel *sch)
 }
 EXPORT_SYMBOL_GPL(css_sch_device_unregister);
 
-static void css_sch_todo(struct work_struct *work)
-{
-        struct subchannel *sch;
-        enum sch_todo todo;
-
-        sch = container_of(work, struct subchannel, todo_work);
-        /* Find out todo. */
-        spin_lock_irq(sch->lock);
-        todo = sch->todo;
-        CIO_MSG_EVENT(4, "sch_todo: sch=0.%x.%04x, todo=%d\n", sch->schid.ssid,
-                      sch->schid.sch_no, todo);
-        sch->todo = SCH_TODO_NOTHING;
-        spin_unlock_irq(sch->lock);
-        /* Perform todo. */
-        if (todo == SCH_TODO_UNREG)
-                css_sch_device_unregister(sch);
-        /* Release workqueue ref. */
-        put_device(&sch->dev);
-}
-
-/**
- * css_sched_sch_todo - schedule a subchannel operation
- * @sch: subchannel
- * @todo: todo
- *
- * Schedule the operation identified by @todo to be performed on the slow path
- * workqueue. Do nothing if another operation with higher priority is already
- * scheduled. Needs to be called with subchannel lock held.
- */
-void css_sched_sch_todo(struct subchannel *sch, enum sch_todo todo)
-{
-        CIO_MSG_EVENT(4, "sch_todo: sched sch=0.%x.%04x todo=%d\n",
-                      sch->schid.ssid, sch->schid.sch_no, todo);
-        if (sch->todo >= todo)
-                return;
-        /* Get workqueue ref. */
-        if (!get_device(&sch->dev))
-                return;
-        sch->todo = todo;
-        if (!queue_work(cio_work_q, &sch->todo_work)) {
-                /* Already queued, release workqueue ref. */
-                put_device(&sch->dev);
-        }
-}
-
 static void ssd_from_pmcw(struct chsc_ssd_info *ssd, struct pmcw *pmcw)
 {
         int i;
@@ -466,6 +421,65 @@ static void css_evaluate_subchannel(struct subchannel_id schid, int slow)
                 css_schedule_eval(schid);
 }
 
+/**
+ * css_sched_sch_todo - schedule a subchannel operation
+ * @sch: subchannel
+ * @todo: todo
+ *
+ * Schedule the operation identified by @todo to be performed on the slow path
+ * workqueue. Do nothing if another operation with higher priority is already
+ * scheduled. Needs to be called with subchannel lock held.
+ */
+void css_sched_sch_todo(struct subchannel *sch, enum sch_todo todo)
+{
+        CIO_MSG_EVENT(4, "sch_todo: sched sch=0.%x.%04x todo=%d\n",
+                      sch->schid.ssid, sch->schid.sch_no, todo);
+        if (sch->todo >= todo)
+                return;
+        /* Get workqueue ref. */
+        if (!get_device(&sch->dev))
+                return;
+        sch->todo = todo;
+        if (!queue_work(cio_work_q, &sch->todo_work)) {
+                /* Already queued, release workqueue ref. */
+                put_device(&sch->dev);
+        }
+}
+
+static void css_sch_todo(struct work_struct *work)
+{
+        struct subchannel *sch;
+        enum sch_todo todo;
+        int ret;
+
+        sch = container_of(work, struct subchannel, todo_work);
+        /* Find out todo. */
+        spin_lock_irq(sch->lock);
+        todo = sch->todo;
+        CIO_MSG_EVENT(4, "sch_todo: sch=0.%x.%04x, todo=%d\n", sch->schid.ssid,
+                      sch->schid.sch_no, todo);
+        sch->todo = SCH_TODO_NOTHING;
+        spin_unlock_irq(sch->lock);
+        /* Perform todo. */
+        switch (todo) {
+        case SCH_TODO_NOTHING:
+                break;
+        case SCH_TODO_EVAL:
+                ret = css_evaluate_known_subchannel(sch, 1);
+                if (ret == -EAGAIN) {
+                        spin_lock_irq(sch->lock);
+                        css_sched_sch_todo(sch, todo);
+                        spin_unlock_irq(sch->lock);
+                }
+                break;
+        case SCH_TODO_UNREG:
+                css_sch_device_unregister(sch);
+                break;
+        }
+        /* Release workqueue ref. */
+        put_device(&sch->dev);
+}
+
 static struct idset *slow_subchannel_set;
 static spinlock_t slow_subchannel_lock;
 static wait_queue_head_t css_eval_wq;
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index d734f4a0ecac..47269858ecb6 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1868,9 +1868,9 @@ static void __ccw_device_pm_restore(struct ccw_device *cdev)
          */
         cdev->private->flags.resuming = 1;
         cdev->private->path_new_mask = LPM_ANYPATH;
-        css_schedule_eval(sch->schid);
+        css_sched_sch_todo(sch, SCH_TODO_EVAL);
         spin_unlock_irq(sch->lock);
-        css_complete_work();
+        css_wait_for_slow_path();
 
         /* cdev may have been moved to a different subchannel. */
         sch = to_subchannel(cdev->dev.parent);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 52c233fa2b12..1b853513c891 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -496,8 +496,26 @@ static void ccw_device_reset_path_events(struct ccw_device *cdev)
         cdev->private->pgid_reset_mask = 0;
 }
 
-void
-ccw_device_verify_done(struct ccw_device *cdev, int err)
+static void create_fake_irb(struct irb *irb, int type)
+{
+        memset(irb, 0, sizeof(*irb));
+        if (type == FAKE_CMD_IRB) {
+                struct cmd_scsw *scsw = &irb->scsw.cmd;
+                scsw->cc = 1;
+                scsw->fctl = SCSW_FCTL_START_FUNC;
+                scsw->actl = SCSW_ACTL_START_PEND;
+                scsw->stctl = SCSW_STCTL_STATUS_PEND;
+        } else if (type == FAKE_TM_IRB) {
+                struct tm_scsw *scsw = &irb->scsw.tm;
+                scsw->x = 1;
+                scsw->cc = 1;
+                scsw->fctl = SCSW_FCTL_START_FUNC;
+                scsw->actl = SCSW_ACTL_START_PEND;
+                scsw->stctl = SCSW_STCTL_STATUS_PEND;
+        }
+}
+
+void ccw_device_verify_done(struct ccw_device *cdev, int err)
 {
         struct subchannel *sch;
 
@@ -520,12 +538,8 @@ callback:
                 ccw_device_done(cdev, DEV_STATE_ONLINE);
                 /* Deliver fake irb to device driver, if needed. */
                 if (cdev->private->flags.fake_irb) {
-                        memset(&cdev->private->irb, 0, sizeof(struct irb));
-                        cdev->private->irb.scsw.cmd.cc = 1;
-                        cdev->private->irb.scsw.cmd.fctl = SCSW_FCTL_START_FUNC;
-                        cdev->private->irb.scsw.cmd.actl = SCSW_ACTL_START_PEND;
-                        cdev->private->irb.scsw.cmd.stctl =
-                                SCSW_STCTL_STATUS_PEND;
+                        create_fake_irb(&cdev->private->irb,
+                                        cdev->private->flags.fake_irb);
                         cdev->private->flags.fake_irb = 0;
                         if (cdev->handler)
                                 cdev->handler(cdev, cdev->private->intparm,
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index f98698d5735e..ec7fb6d3b479 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -198,7 +198,7 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
         if (cdev->private->state == DEV_STATE_VERIFY) {
                 /* Remember to fake irb when finished. */
                 if (!cdev->private->flags.fake_irb) {
-                        cdev->private->flags.fake_irb = 1;
+                        cdev->private->flags.fake_irb = FAKE_CMD_IRB;
                         cdev->private->intparm = intparm;
                         return 0;
                 } else
@@ -213,9 +213,9 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
         ret = cio_set_options (sch, flags);
         if (ret)
                 return ret;
-        /* Adjust requested path mask to excluded varied off paths. */
+        /* Adjust requested path mask to exclude unusable paths. */
         if (lpm) {
-                lpm &= sch->opm;
+                lpm &= sch->lpm;
                 if (lpm == 0)
                         return -EACCES;
         }
@@ -605,11 +605,21 @@ int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw,
         sch = to_subchannel(cdev->dev.parent);
         if (!sch->schib.pmcw.ena)
                 return -EINVAL;
+        if (cdev->private->state == DEV_STATE_VERIFY) {
+                /* Remember to fake irb when finished. */
+                if (!cdev->private->flags.fake_irb) {
+                        cdev->private->flags.fake_irb = FAKE_TM_IRB;
+                        cdev->private->intparm = intparm;
+                        return 0;
+                } else
+                        /* There's already a fake I/O around. */
+                        return -EBUSY;
+        }
         if (cdev->private->state != DEV_STATE_ONLINE)
                 return -EIO;
-        /* Adjust requested path mask to excluded varied off paths. */
+        /* Adjust requested path mask to exclude unusable paths. */
         if (lpm) {
-                lpm &= sch->opm;
+                lpm &= sch->lpm;
                 if (lpm == 0)
                         return -EACCES;
         }
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 2ebb492a5c17..76253dfcc1be 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -111,6 +111,9 @@ enum cdev_todo {
         CDEV_TODO_UNREG_EVAL,
 };
 
+#define FAKE_CMD_IRB    1
+#define FAKE_TM_IRB     2
+
 struct ccw_device_private {
         struct ccw_device *cdev;
         struct subchannel *sch;
@@ -138,7 +141,7 @@ struct ccw_device_private {
                 unsigned int doverify:1;    /* delayed path verification */
                 unsigned int donotify:1;    /* call notify function */
                 unsigned int recog_done:1;  /* dev. recog. complete */
-                unsigned int fake_irb:1;    /* deliver faked irb */
+                unsigned int fake_irb:2;    /* deliver faked irb */
                 unsigned int resuming:1;    /* recognition while resume */
                 unsigned int pgroup:1;      /* pathgroup is set up */
                 unsigned int mpath:1;       /* multipathing is set up */
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index ec94f049e995..96bbe9d12a79 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1552,6 +1552,8 @@ static void ap_reset(struct ap_device *ap_dev)
         rc = ap_init_queue(ap_dev->qid);
         if (rc == -ENODEV)
                 ap_dev->unregistered = 1;
+        else
+                __ap_schedule_poll_timer();
 }
 
 static int __ap_poll_device(struct ap_device *ap_dev, unsigned long *flags)
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/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/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c
index 84c934c0a545..520e8286db28 100644
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
@@ -517,10 +517,14 @@ static void ssb_pcicore_pcie_setup_workarounds(struct ssb_pcicore *pc)
 
 static void __devinit ssb_pcicore_init_clientmode(struct ssb_pcicore *pc)
 {
-        ssb_pcicore_fix_sprom_core_index(pc);
+        struct ssb_device *pdev = pc->dev;
+        struct ssb_bus *bus = pdev->bus;
+
+        if (bus->bustype == SSB_BUSTYPE_PCI)
+                ssb_pcicore_fix_sprom_core_index(pc);
 
         /* Disable PCI interrupts. */
-        ssb_write32(pc->dev, SSB_INTVEC, 0);
+        ssb_write32(pdev, SSB_INTVEC, 0);
 
         /* Additional PCIe always once-executed workarounds */
         if (pc->dev->id.coreid == SSB_DEV_PCIE) {
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/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/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"\