Merge branch 'master' into upstream

24 files changed, 175 insertions, 144 deletions

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index f621168f38ae..8ea70625f7ea 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -457,10 +457,6 @@ static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev,
         }
 
         vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
-        if ((vendor & 0xFFFF) == 0xFFFF) {
-                rc = -ENODEV;
-                goto out_err;
-        }
 
         /* Default timeouts */
         chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index a140e4536a4e..766cc969c4d0 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -491,7 +491,7 @@ static struct pci_device_id divil_pci[] = {
 
 #define MSR_LBAR_SMB            0x5140000B
 
-static int scx200_add_cs553x(void)
+static __init int scx200_add_cs553x(void)
 {
         u32     low, hi;
         u32     smb_base;
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 3697edafd6d2..dddcdae736ac 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -1905,19 +1905,19 @@ static void __exit infinipath_cleanup(void)
                         } else
                                 ipath_dbg("irq is 0, not doing free_irq "
                                           "for unit %u\n", dd->ipath_unit);
-                        dd->pcidev = NULL;
-                }
 
-                /*
-                 * we check for NULL here, because it's outside the kregbase
-                 * check, and we need to call it after the free_irq.  Thus
-                 * it's possible that the function pointers were never
-                 * initialized.
-                 */
-                if (dd->ipath_f_cleanup)
-                        /* clean up chip-specific stuff */
-                        dd->ipath_f_cleanup(dd);
+                        /*
+                         * we check for NULL here, because it's outside
+                         * the kregbase check, and we need to call it
+                         * after the free_irq.  Thus it's possible that
+                         * the function pointers were never initialized.
+                         */
+                        if (dd->ipath_f_cleanup)
+                                /* clean up chip-specific stuff */
+                                dd->ipath_f_cleanup(dd);
 
+                        dd->pcidev = NULL;
+                }
                 spin_lock_irqsave(&ipath_devs_lock, flags);
         }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c
index f11a900e8cd7..a2f1ceafcca9 100644
--- a/drivers/infiniband/hw/ipath/ipath_eeprom.c
+++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c
@@ -505,11 +505,10 @@ static u8 flash_csum(struct ipath_flash *ifp, int adjust)
  * ipath_get_guid - get the GUID from the i2c device
  * @dd: the infinipath device
  *
- * When we add the multi-chip support, we will probably have to add
- * the ability to use the number of guids field, and get the guid from
- * the first chip's flash, to use for all of them.
+ * We have the capability to use the ipath_nguid field, and get
+ * the guid from the first chip's flash, to use for all of them.
  */
-void ipath_get_guid(struct ipath_devdata *dd)
+void ipath_get_eeprom_info(struct ipath_devdata *dd)
 {
         void *buf;
         struct ipath_flash *ifp;
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index c347191f02bf..ada267e41f6c 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -139,7 +139,7 @@ static int ipath_get_base_info(struct ipath_portdata *pd,
         kinfo->spi_piosize = dd->ipath_ibmaxlen;
         kinfo->spi_mtu = dd->ipath_ibmaxlen;    /* maxlen, not ibmtu */
         kinfo->spi_port = pd->port_port;
-        kinfo->spi_sw_version = IPATH_USER_SWVERSION;
+        kinfo->spi_sw_version = IPATH_KERN_SWVERSION;
         kinfo->spi_hw_version = dd->ipath_revision;
 
         if (copy_to_user(ubase, kinfo, sizeof(*kinfo)))
@@ -1224,6 +1224,10 @@ static unsigned int ipath_poll(struct file *fp,
 
         if (tail == head) {
                 set_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag);
+                if(dd->ipath_rhdrhead_intr_off) /* arm rcv interrupt */
+                        (void)ipath_write_ureg(dd, ur_rcvhdrhead,
+                                               dd->ipath_rhdrhead_intr_off
+                                               | head, pd->port_port);
                 poll_wait(fp, &pd->port_wait, pt);
 
                 if (test_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag)) {
diff --git a/drivers/infiniband/hw/ipath/ipath_ht400.c b/drivers/infiniband/hw/ipath/ipath_ht400.c
index 4652435998f3..fac0a2b74de2 100644
--- a/drivers/infiniband/hw/ipath/ipath_ht400.c
+++ b/drivers/infiniband/hw/ipath/ipath_ht400.c
@@ -607,7 +607,12 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name,
         case 4:         /* Ponderosa is one of the bringup boards */
                 n = "Ponderosa";
                 break;
-        case 5:         /* HT-460 original production board */
+        case 5:
+                /*
+                 * HT-460 original production board; two production levels, with
+                 * different serial number ranges.   See ipath_ht_early_init() for
+                 * case where we enable IPATH_GPIO_INTR for later serial # range.
+                 */
                 n = "InfiniPath_HT-460";
                 break;
         case 6:
@@ -642,7 +647,7 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name,
         if (n)
                 snprintf(name, namelen, "%s", n);
 
-        if (dd->ipath_majrev != 3 || dd->ipath_minrev != 2) {
+        if (dd->ipath_majrev != 3 || (dd->ipath_minrev < 2 || dd->ipath_minrev > 3)) {
                 /*
                  * This version of the driver only supports the HT-400
                  * Rev 3.2
@@ -1520,6 +1525,18 @@ static int ipath_ht_early_init(struct ipath_devdata *dd)
          */
         ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl,
                          INFINIPATH_S_ABORT);
+
+        ipath_get_eeprom_info(dd);
+        if(dd->ipath_boardrev == 5 && dd->ipath_serial[0] == '1' &&
+                dd->ipath_serial[1] == '2' && dd->ipath_serial[2] == '8') {
+                /*
+                 * Later production HT-460 has same changes as HT-465, so
+                 * can use GPIO interrupts.  They have serial #'s starting
+                 * with 128, rather than 112.
+                 */
+                dd->ipath_flags |= IPATH_GPIO_INTR;
+                dd->ipath_flags &= ~IPATH_POLL_RX_INTR;
+        }
         return 0;
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index 16f640e1c16e..dc83250d26a6 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -879,7 +879,6 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit)
 
 done:
         if (!ret) {
-                ipath_get_guid(dd);
                 *dd->ipath_statusp |= IPATH_STATUS_CHIP_PRESENT;
                 if (!dd->ipath_f_intrsetup(dd)) {
                         /* now we can enable all interrupts from the chip */
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index e6507f8115bc..5d92d57b6f54 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -650,7 +650,7 @@ u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32 *);
 void ipath_init_pe800_funcs(struct ipath_devdata *);
 /* init HT-400-specific func */
 void ipath_init_ht400_funcs(struct ipath_devdata *);
-void ipath_get_guid(struct ipath_devdata *);
+void ipath_get_eeprom_info(struct ipath_devdata *);
 u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg);
 
 /*
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index aa33b0e9f2f6..5ae8761f9dd2 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -136,9 +136,7 @@ int ipath_lkey_ok(struct ipath_lkey_table *rkt, struct ipath_sge *isge,
                 ret = 1;
                 goto bail;
         }
-        spin_lock(&rkt->lock);
         mr = rkt->table[(sge->lkey >> (32 - ib_ipath_lkey_table_size))];
-        spin_unlock(&rkt->lock);
         if (unlikely(mr == NULL || mr->lkey != sge->lkey)) {
                 ret = 0;
                 goto bail;
@@ -184,8 +182,6 @@ bail:
  * @acc: access flags
  *
  * Return 1 if successful, otherwise 0.
- *
- * The QP r_rq.lock should be held.
  */
 int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss,
                   u32 len, u64 vaddr, u32 rkey, int acc)
@@ -196,9 +192,7 @@ int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss,
         size_t off;
         int ret;
 
-        spin_lock(&rkt->lock);
         mr = rkt->table[(rkey >> (32 - ib_ipath_lkey_table_size))];
-        spin_unlock(&rkt->lock);
         if (unlikely(mr == NULL || mr->lkey != rkey)) {
                 ret = 0;
                 goto bail;
diff --git a/drivers/infiniband/hw/ipath/ipath_layer.c b/drivers/infiniband/hw/ipath/ipath_layer.c
index 9cb5258ffed9..9ec4ac77b87f 100644
--- a/drivers/infiniband/hw/ipath/ipath_layer.c
+++ b/drivers/infiniband/hw/ipath/ipath_layer.c
@@ -872,12 +872,13 @@ static void copy_io(u32 __iomem *piobuf, struct ipath_sge_state *ss,
                 update_sge(ss, len);
                 length -= len;
         }
+        /* Update address before sending packet. */
+        update_sge(ss, length);
         /* must flush early everything before trigger word */
         ipath_flush_wc();
         __raw_writel(last, piobuf);
         /* be sure trigger word is written */
         ipath_flush_wc();
-        update_sge(ss, length);
 }
 
 /**
@@ -943,17 +944,18 @@ int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords,
         if (likely(ss->num_sge == 1 && len <= ss->sge.length &&
                    !((unsigned long)ss->sge.vaddr & (sizeof(u32) - 1)))) {
                 u32 w;
+                u32 *addr = (u32 *) ss->sge.vaddr;
 
+                /* Update address before sending packet. */
+                update_sge(ss, len);
                 /* Need to round up for the last dword in the packet. */
                 w = (len + 3) >> 2;
-                __iowrite32_copy(piobuf, ss->sge.vaddr, w - 1);
+                __iowrite32_copy(piobuf, addr, w - 1);
                 /* must flush early everything before trigger word */
                 ipath_flush_wc();
-                __raw_writel(((u32 *) ss->sge.vaddr)[w - 1],
-                             piobuf + w - 1);
+                __raw_writel(addr[w - 1], piobuf + w - 1);
                 /* be sure trigger word is written */
                 ipath_flush_wc();
-                update_sge(ss, len);
                 ret = 0;
                 goto bail;
         }
diff --git a/drivers/infiniband/hw/ipath/ipath_pe800.c b/drivers/infiniband/hw/ipath/ipath_pe800.c
index 6318067ab5ec..02e8c75b24f6 100644
--- a/drivers/infiniband/hw/ipath/ipath_pe800.c
+++ b/drivers/infiniband/hw/ipath/ipath_pe800.c
@@ -1180,6 +1180,8 @@ static int ipath_pe_early_init(struct ipath_devdata *dd)
          */
         dd->ipath_rhdrhead_intr_off = 1ULL<<32;
 
+        ipath_get_eeprom_info(dd);
+
         return 0;
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c
index 18890716db1e..9f8855d970c8 100644
--- a/drivers/infiniband/hw/ipath/ipath_qp.c
+++ b/drivers/infiniband/hw/ipath/ipath_qp.c
@@ -375,10 +375,10 @@ static void ipath_error_qp(struct ipath_qp *qp)
 
         spin_lock(&dev->pending_lock);
         /* XXX What if its already removed by the timeout code? */
-        if (qp->timerwait.next != LIST_POISON1)
-                list_del(&qp->timerwait);
-        if (qp->piowait.next != LIST_POISON1)
-                list_del(&qp->piowait);
+        if (!list_empty(&qp->timerwait))
+                list_del_init(&qp->timerwait);
+        if (!list_empty(&qp->piowait))
+                list_del_init(&qp->piowait);
         spin_unlock(&dev->pending_lock);
 
         wc.status = IB_WC_WR_FLUSH_ERR;
@@ -427,6 +427,7 @@ static void ipath_error_qp(struct ipath_qp *qp)
 int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                     int attr_mask)
 {
+        struct ipath_ibdev *dev = to_idev(ibqp->device);
         struct ipath_qp *qp = to_iqp(ibqp);
         enum ib_qp_state cur_state, new_state;
         unsigned long flags;
@@ -443,6 +444,19 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                                 attr_mask))
                 goto inval;
 
+        if (attr_mask & IB_QP_AV)
+                if (attr->ah_attr.dlid == 0 ||
+                    attr->ah_attr.dlid >= IPS_MULTICAST_LID_BASE)
+                        goto inval;
+
+        if (attr_mask & IB_QP_PKEY_INDEX)
+                if (attr->pkey_index >= ipath_layer_get_npkeys(dev->dd))
+                        goto inval;
+
+        if (attr_mask & IB_QP_MIN_RNR_TIMER)
+                if (attr->min_rnr_timer > 31)
+                        goto inval;
+
         switch (new_state) {
         case IB_QPS_RESET:
                 ipath_reset_qp(qp);
@@ -457,13 +471,8 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 
         }
 
-        if (attr_mask & IB_QP_PKEY_INDEX) {
-                struct ipath_ibdev *dev = to_idev(ibqp->device);
-
-                if (attr->pkey_index >= ipath_layer_get_npkeys(dev->dd))
-                        goto inval;
+        if (attr_mask & IB_QP_PKEY_INDEX)
                 qp->s_pkey_index = attr->pkey_index;
-        }
 
         if (attr_mask & IB_QP_DEST_QPN)
                 qp->remote_qpn = attr->dest_qp_num;
@@ -479,12 +488,8 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
         if (attr_mask & IB_QP_ACCESS_FLAGS)
                 qp->qp_access_flags = attr->qp_access_flags;
 
-        if (attr_mask & IB_QP_AV) {
-                if (attr->ah_attr.dlid == 0 ||
-                    attr->ah_attr.dlid >= IPS_MULTICAST_LID_BASE)
-                        goto inval;
+        if (attr_mask & IB_QP_AV)
                 qp->remote_ah_attr = attr->ah_attr;
-        }
 
         if (attr_mask & IB_QP_PATH_MTU)
                 qp->path_mtu = attr->path_mtu;
@@ -499,11 +504,8 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                 qp->s_rnr_retry_cnt = qp->s_rnr_retry;
         }
 
-        if (attr_mask & IB_QP_MIN_RNR_TIMER) {
-                if (attr->min_rnr_timer > 31)
-                        goto inval;
+        if (attr_mask & IB_QP_MIN_RNR_TIMER)
                 qp->s_min_rnr_timer = attr->min_rnr_timer;
-        }
 
         if (attr_mask & IB_QP_QKEY)
                 qp->qkey = attr->qkey;
@@ -710,10 +712,8 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
                              init_attr->qp_type == IB_QPT_RC ?
                              ipath_do_rc_send : ipath_do_uc_send,
                              (unsigned long)qp);
-                qp->piowait.next = LIST_POISON1;
-                qp->piowait.prev = LIST_POISON2;
-                qp->timerwait.next = LIST_POISON1;
-                qp->timerwait.prev = LIST_POISON2;
+                INIT_LIST_HEAD(&qp->piowait);
+                INIT_LIST_HEAD(&qp->timerwait);
                 qp->state = IB_QPS_RESET;
                 qp->s_wq = swq;
                 qp->s_size = init_attr->cap.max_send_wr + 1;
@@ -734,7 +734,7 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
                 ipath_reset_qp(qp);
 
                 /* Tell the core driver that the kernel SMA is present. */
-                if (qp->ibqp.qp_type == IB_QPT_SMI)
+                if (init_attr->qp_type == IB_QPT_SMI)
                         ipath_layer_set_verbs_flags(dev->dd,
                                                     IPATH_VERBS_KERNEL_SMA);
                 break;
@@ -783,10 +783,10 @@ int ipath_destroy_qp(struct ib_qp *ibqp)
 
         /* Make sure the QP isn't on the timeout list. */
         spin_lock_irqsave(&dev->pending_lock, flags);
-        if (qp->timerwait.next != LIST_POISON1)
-                list_del(&qp->timerwait);
-        if (qp->piowait.next != LIST_POISON1)
-                list_del(&qp->piowait);
+        if (!list_empty(&qp->timerwait))
+                list_del_init(&qp->timerwait);
+        if (!list_empty(&qp->piowait))
+                list_del_init(&qp->piowait);
         spin_unlock_irqrestore(&dev->pending_lock, flags);
 
         /*
@@ -855,10 +855,10 @@ void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc)
 
         spin_lock(&dev->pending_lock);
         /* XXX What if its already removed by the timeout code? */
-        if (qp->timerwait.next != LIST_POISON1)
-                list_del(&qp->timerwait);
-        if (qp->piowait.next != LIST_POISON1)
-                list_del(&qp->piowait);
+        if (!list_empty(&qp->timerwait))
+                list_del_init(&qp->timerwait);
+        if (!list_empty(&qp->piowait))
+                list_del_init(&qp->piowait);
         spin_unlock(&dev->pending_lock);
 
         ipath_cq_enter(to_icq(qp->ibqp.send_cq), wc, 1);
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index a4055ca00614..493b1821a934 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -57,7 +57,7 @@ static void ipath_init_restart(struct ipath_qp *qp, struct ipath_swqe *wqe)
         qp->s_len = wqe->length - len;
         dev = to_idev(qp->ibqp.device);
         spin_lock(&dev->pending_lock);
-        if (qp->timerwait.next == LIST_POISON1)
+        if (list_empty(&qp->timerwait))
                 list_add_tail(&qp->timerwait,
                               &dev->pending[dev->pending_index]);
         spin_unlock(&dev->pending_lock);
@@ -356,7 +356,7 @@ static inline int ipath_make_rc_req(struct ipath_qp *qp,
                 if ((int)(qp->s_psn - qp->s_next_psn) > 0)
                         qp->s_next_psn = qp->s_psn;
                 spin_lock(&dev->pending_lock);
-                if (qp->timerwait.next == LIST_POISON1)
+                if (list_empty(&qp->timerwait))
                         list_add_tail(&qp->timerwait,
                                       &dev->pending[dev->pending_index]);
                 spin_unlock(&dev->pending_lock);
@@ -726,8 +726,8 @@ void ipath_restart_rc(struct ipath_qp *qp, u32 psn, struct ib_wc *wc)
          */
         dev = to_idev(qp->ibqp.device);
         spin_lock(&dev->pending_lock);
-        if (qp->timerwait.next != LIST_POISON1)
-                list_del(&qp->timerwait);
+        if (!list_empty(&qp->timerwait))
+                list_del_init(&qp->timerwait);
         spin_unlock(&dev->pending_lock);
 
         if (wqe->wr.opcode == IB_WR_RDMA_READ)
@@ -886,8 +886,8 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode)
          * just won't find anything to restart if we ACK everything.
          */
         spin_lock(&dev->pending_lock);
-        if (qp->timerwait.next != LIST_POISON1)
-                list_del(&qp->timerwait);
+        if (!list_empty(&qp->timerwait))
+                list_del_init(&qp->timerwait);
         spin_unlock(&dev->pending_lock);
 
         /*
@@ -1194,8 +1194,7 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
                      IB_WR_RDMA_READ))
                 goto ack_done;
         spin_lock(&dev->pending_lock);
-        if (qp->s_rnr_timeout == 0 &&
-            qp->timerwait.next != LIST_POISON1)
+        if (qp->s_rnr_timeout == 0 && !list_empty(&qp->timerwait))
                 list_move_tail(&qp->timerwait,
                                &dev->pending[dev->pending_index]);
         spin_unlock(&dev->pending_lock);
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
index eb81424b3c5b..d38f4f3cfd1d 100644
--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
@@ -435,7 +435,7 @@ void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev)
         unsigned long flags;
 
         spin_lock_irqsave(&dev->pending_lock, flags);
-        if (qp->piowait.next == LIST_POISON1)
+        if (list_empty(&qp->piowait))
                 list_add_tail(&qp->piowait, &dev->piowait);
         spin_unlock_irqrestore(&dev->pending_lock, flags);
         /*
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index cb9e387c301f..28fdbdaa789d 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -464,7 +464,7 @@ static void ipath_ib_timer(void *arg)
         last = &dev->pending[dev->pending_index];
         while (!list_empty(last)) {
                 qp = list_entry(last->next, struct ipath_qp, timerwait);
-                list_del(&qp->timerwait);
+                list_del_init(&qp->timerwait);
                 qp->timer_next = resend;
                 resend = qp;
                 atomic_inc(&qp->refcount);
@@ -474,7 +474,7 @@ static void ipath_ib_timer(void *arg)
                 qp = list_entry(last->next, struct ipath_qp, timerwait);
                 if (--qp->s_rnr_timeout == 0) {
                         do {
-                                list_del(&qp->timerwait);
+                                list_del_init(&qp->timerwait);
                                 tasklet_hi_schedule(&qp->s_task);
                                 if (list_empty(last))
                                         break;
@@ -554,7 +554,7 @@ static int ipath_ib_piobufavail(void *arg)
         while (!list_empty(&dev->piowait)) {
                 qp = list_entry(dev->piowait.next, struct ipath_qp,
                                 piowait);
-                list_del(&qp->piowait);
+                list_del_init(&qp->piowait);
                 tasklet_hi_schedule(&qp->s_task);
         }
         spin_unlock_irqrestore(&dev->pending_lock, flags);
@@ -951,6 +951,7 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd)
         idev->dd = dd;
 
         strlcpy(dev->name, "ipath%d", IB_DEVICE_NAME_MAX);
+        dev->owner = THIS_MODULE;
         dev->node_guid = ipath_layer_get_guid(dd);
         dev->uverbs_abi_ver = IPATH_UVERBS_ABI_VERSION;
         dev->uverbs_cmd_mask =
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index 1ea433291fa7..b292fefa3b41 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -490,26 +490,7 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 
         first_ind = srq->first_free;
 
-        for (nreq = 0; wr; ++nreq, wr = wr->next) {
-                if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
-                        nreq = 0;
-
-                        doorbell[0] = cpu_to_be32(first_ind << srq->wqe_shift);
-                        doorbell[1] = cpu_to_be32(srq->srqn << 8);
-
-                        /*
-                         * Make sure that descriptors are written
-                         * before doorbell is rung.
-                         */
-                        wmb();
-
-                        mthca_write64(doorbell,
-                                      dev->kar + MTHCA_RECEIVE_DOORBELL,
-                                      MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
-
-                        first_ind = srq->first_free;
-                }
-
+        for (nreq = 0; wr; wr = wr->next) {
                 ind = srq->first_free;
 
                 if (ind < 0) {
@@ -569,6 +550,26 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 
                 srq->wrid[ind]  = wr->wr_id;
                 srq->first_free = next_ind;
+
+                ++nreq;
+                if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
+                        nreq = 0;
+
+                        doorbell[0] = cpu_to_be32(first_ind << srq->wqe_shift);
+                        doorbell[1] = cpu_to_be32(srq->srqn << 8);
+
+                        /*
+                         * Make sure that descriptors are written
+                         * before doorbell is rung.
+                         */
+                        wmb();
+
+                        mthca_write64(doorbell,
+                                      dev->kar + MTHCA_RECEIVE_DOORBELL,
+                                      MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
+
+                        first_ind = srq->first_free;
+                }
         }
 
         if (likely(nreq)) {
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 1494175ac6fe..161afddd0f44 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -36,13 +36,10 @@
 
 
 /*
- * This code has been tested on an ads7846 / N770 device.
+ * This code has been heavily tested on a Nokia 770, and lightly
+ * tested on other ads7846 devices (OSK/Mistral, Lubbock).
  * Support for ads7843 and ads7845 has only been stubbed in.
  *
- * Not yet done:  How accurate are the temperature and voltage
- * readings? (System-specific calibration should support
- * accuracy of 0.3 degrees C; otherwise it's 2.0 degrees.)
- *
  * IRQ handling needs a workaround because of a shortcoming in handling
  * edge triggered IRQs on some platforms like the OMAP1/2. These
  * platforms don't handle the ARM lazy IRQ disabling properly, thus we
@@ -248,10 +245,13 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 
         if (req->msg.status)
                 status = req->msg.status;
+
+        /* on-wire is a must-ignore bit, a BE12 value, then padding */
         sample = be16_to_cpu(req->sample);
-        sample = sample >> 4;
-        kfree(req);
+        sample = sample >> 3;
+        sample &= 0x0fff;
 
+        kfree(req);
         return status ? status : sample;
 }
 
@@ -336,13 +336,13 @@ static void ads7846_rx(void *ads)
         u16                     x, y, z1, z2;
         unsigned long           flags;
 
-        /* adjust:  12 bit samples (left aligned), built from
-         * two 8 bit values writen msb-first.
+        /* adjust:  on-wire is a must-ignore bit, a BE12 value, then padding;
+         * built from two 8 bit values written msb-first.
          */
-        x = be16_to_cpu(ts->tc.x) >> 4;
-        y = be16_to_cpu(ts->tc.y) >> 4;
-        z1 = be16_to_cpu(ts->tc.z1) >> 4;
-        z2 = be16_to_cpu(ts->tc.z2) >> 4;
+        x = (be16_to_cpu(ts->tc.x) >> 3) & 0x0fff;
+        y = (be16_to_cpu(ts->tc.y) >> 3) & 0x0fff;
+        z1 = (be16_to_cpu(ts->tc.z1) >> 3) & 0x0fff;
+        z2 = (be16_to_cpu(ts->tc.z2) >> 3) & 0x0fff;
 
         /* range filtering */
         if (x == MAX_12BIT)
@@ -420,7 +420,7 @@ static void ads7846_debounce(void *ads)
 
         m = &ts->msg[ts->msg_idx];
         t = list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
-        val = (*(u16 *)t->rx_buf) >> 3;
+        val = (be16_to_cpu(*(__be16 *)t->rx_buf) >> 3) & 0x0fff;
         if (!ts->read_cnt || (abs(ts->last_read - val) > ts->debounce_tol)) {
                 /* Repeat it, if this was the first read or the read
                  * wasn't consistent enough. */
@@ -469,7 +469,7 @@ static void ads7846_timer(unsigned long handle)
         spin_lock_irq(&ts->lock);
 
         if (unlikely(ts->msg_idx && !ts->pendown)) {
-                /* measurment cycle ended */
+                /* measurement cycle ended */
                 if (!device_suspended(&ts->spi->dev)) {
                         ts->irq_disabled = 0;
                         enable_irq(ts->spi->irq);
@@ -495,11 +495,10 @@ static irqreturn_t ads7846_irq(int irq, void *handle, struct pt_regs *regs)
         spin_lock_irqsave(&ts->lock, flags);
         if (likely(ts->get_pendown_state())) {
                 if (!ts->irq_disabled) {
-                        /* REVISIT irq logic for many ARM chips has cloned a
-                         * bug wherein disabling an irq in its handler won't
-                         * work;(it's disabled lazily, and too late to work.
-                         * until all their irq logic is fixed, we must shadow
-                         * that state here.
+                        /* The ARM do_simple_IRQ() dispatcher doesn't act
+                         * like the other dispatchers:  it will report IRQs
+                         * even after they've been disabled.  We work around
+                         * that here.  (The "generic irq" framework may help...)
                          */
                         ts->irq_disabled = 1;
                         disable_irq(ts->spi->irq);
@@ -609,16 +608,20 @@ static int __devinit ads7846_probe(struct spi_device *spi)
                 return -EINVAL;
         }
 
+        /* REVISIT when the irq can be triggered active-low, or if for some
+         * reason the touchscreen isn't hooked up, we don't need to access
+         * the pendown state.
+         */
         if (pdata->get_pendown_state == NULL) {
                 dev_dbg(&spi->dev, "no get_pendown_state function?\n");
                 return -EINVAL;
         }
 
-        /* We'd set the wordsize to 12 bits ... except that some controllers
-         * will then treat the 8 bit command words as 12 bits (and drop the
-         * four MSBs of the 12 bit result).  Result: inputs must be shifted
-         * to discard the four garbage LSBs.
+        /* We'd set TX wordsize 8 bits and RX wordsize to 13 bits ... except
+         * that even if the hardware can do that, the SPI controller driver
+         * may not.  So we stick to very-portable 8 bit words, both RX and TX.
          */
+        spi->bits_per_word = 8;
 
         ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL);
         input_dev = input_allocate_device();
@@ -772,7 +775,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 
         if (request_irq(spi->irq, ads7846_irq,
                         SA_SAMPLE_RANDOM | SA_TRIGGER_FALLING,
-                        spi->dev.bus_id, ts)) {
+                        spi->dev.driver->name, ts)) {
                 dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
                 err = -EBUSY;
                 goto err_free_mem;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 3ca3cfb03a7e..ec802913f977 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5028,8 +5028,10 @@ static int md_notify_reboot(struct notifier_block *this,
                 printk(KERN_INFO "md: stopping all md devices.\n");
 
                 ITERATE_MDDEV(mddev,tmp)
-                        if (mddev_trylock(mddev))
+                        if (mddev_trylock(mddev)) {
                                 do_md_stop (mddev, 1);
+                                mddev_unlock(mddev);
+                        }
                 /*
                  * certain more exotic SCSI devices are known to be
                  * volatile wrt too early system reboots. While the
diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig
index 9c45b983e0de..1a04db4552da 100644
--- a/drivers/media/common/Kconfig
+++ b/drivers/media/common/Kconfig
@@ -1,6 +1,6 @@
 config VIDEO_SAA7146
         tristate
-        select I2C
+        depends on I2C
 
 config VIDEO_SAA7146_VV
         tristate
diff --git a/drivers/media/dvb/pluto2/Kconfig b/drivers/media/dvb/pluto2/Kconfig
index 48252e9ce586..7d8e6e87bdbb 100644
--- a/drivers/media/dvb/pluto2/Kconfig
+++ b/drivers/media/dvb/pluto2/Kconfig
@@ -1,7 +1,6 @@
 config DVB_PLUTO2
         tristate "Pluto2 cards"
         depends on DVB_CORE && PCI && I2C
-        select I2C
         select I2C_ALGOBIT
         select DVB_TDA1004X
         help
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index e39cc05c64c2..587458b370b9 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -353,7 +353,7 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
                          */
                         printk(KERN_ERR "%s: unable to select block size for "
                                 "writing (rb%u wb%u rp%u wp%u)\n",
-                                md->disk->disk_name,
+                                mmc_card_id(card),
                                 1 << card->csd.read_blkbits,
                                 1 << card->csd.write_blkbits,
                                 card->csd.read_partial,
diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 5e6d00752990..cff8598aa800 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -33,7 +33,7 @@ config DONGLE
 
 config ESI_DONGLE
         tristate "ESI JetEye PC dongle"
-        depends on DONGLE && IRDA
+        depends on IRTTY_SIR && DONGLE && IRDA
         help
           Say Y here if you want to build support for the Extended Systems
           JetEye PC dongle.  To compile it as a module, choose M here. The ESI
@@ -44,7 +44,7 @@ config ESI_DONGLE
 
 config ACTISYS_DONGLE
         tristate "ACTiSYS IR-220L and IR220L+ dongle"
-        depends on DONGLE && IRDA
+        depends on IRTTY_SIR && DONGLE && IRDA
         help
           Say Y here if you want to build support for the ACTiSYS IR-220L and
           IR220L+ dongles.  To compile it as a module, choose M here. The
@@ -55,7 +55,7 @@ config ACTISYS_DONGLE
 
 config TEKRAM_DONGLE
         tristate "Tekram IrMate 210B dongle"
-        depends on DONGLE && IRDA
+        depends on IRTTY_SIR && DONGLE && IRDA
         help
           Say Y here if you want to build support for the Tekram IrMate 210B
           dongle.  To compile it as a module, choose M here. The Tekram dongle
@@ -66,7 +66,7 @@ config TEKRAM_DONGLE
 
 config TOIM3232_DONGLE
         tristate "TOIM3232 IrDa dongle"
-        depends on DONGLE && IRDA
+        depends on IRTTY_SIR && DONGLE && IRDA
         help
           Say Y here if you want to build support for the Vishay/Temic
           TOIM3232 and TOIM4232 based dongles.
@@ -74,7 +74,7 @@ config TOIM3232_DONGLE
 
 config LITELINK_DONGLE
         tristate "Parallax LiteLink dongle"
-        depends on DONGLE && IRDA
+        depends on IRTTY_SIR && DONGLE && IRDA
         help
           Say Y here if you want to build support for the Parallax Litelink
           dongle.  To compile it as a module, choose M here.  The Parallax
@@ -85,7 +85,7 @@ config LITELINK_DONGLE
 
 config MA600_DONGLE
         tristate "Mobile Action MA600 dongle"
-        depends on DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
         help
           Say Y here if you want to build support for the Mobile Action MA600
           dongle.  To compile it as a module, choose M here. The MA600 dongle
@@ -98,7 +98,7 @@ config MA600_DONGLE
 
 config GIRBIL_DONGLE
         tristate "Greenwich GIrBIL dongle"
-        depends on DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
         help
           Say Y here if you want to build support for the Greenwich GIrBIL
           dongle.  If you want to compile it as a module, choose M here.
@@ -109,7 +109,7 @@ config GIRBIL_DONGLE
 
 config MCP2120_DONGLE
         tristate "Microchip MCP2120"
-        depends on DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
         help
           Say Y here if you want to build support for the Microchip MCP2120
           dongle.  If you want to compile it as a module, choose M here.
@@ -123,7 +123,7 @@ config MCP2120_DONGLE
 
 config OLD_BELKIN_DONGLE
         tristate "Old Belkin dongle"
-        depends on DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
         help
           Say Y here if you want to build support for the Adaptec Airport 1000
           and 2000 dongles.  If you want to compile it as a module, choose
@@ -132,7 +132,7 @@ config OLD_BELKIN_DONGLE
 
 config ACT200L_DONGLE
         tristate "ACTiSYS IR-200L dongle"
-        depends on DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
         help
           Say Y here if you want to build support for the ACTiSYS IR-200L
           dongle. If you want to compile it as a module, choose M here.
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 60779ebf2ff6..959109609d85 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -979,6 +979,7 @@ static int sky2_rx_start(struct sky2_port *sky2)
         struct sky2_hw *hw = sky2->hw;
         unsigned rxq = rxqaddr[sky2->port];
         int i;
+        unsigned thresh;
 
         sky2->rx_put = sky2->rx_next = 0;
         sky2_qset(hw, rxq);
@@ -1003,9 +1004,21 @@ static int sky2_rx_start(struct sky2_port *sky2)
                 sky2_rx_add(sky2, re->mapaddr);
         }
 
-        /* Truncate oversize frames */
-        sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), sky2->rx_bufsize - 8);
-        sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
+
+        /*
+         * The receiver hangs if it receives frames larger than the
+         * packet buffer. As a workaround, truncate oversize frames, but
+         * the register is limited to 9 bits, so if you do frames > 2052
+         * you better get the MTU right!
+         */
+        thresh = (sky2->rx_bufsize - 8) / sizeof(u32);
+        if (thresh > 0x1ff)
+                sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF);
+        else {
+                sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh);
+                sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
+        }
+
 
         /* Tell chip about available buffers */
         sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put);
diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c
index 9de4b5a04d70..5fc14563ee3a 100644
--- a/drivers/spi/spi_s3c24xx.c
+++ b/drivers/spi/spi_s3c24xx.c
@@ -405,7 +405,7 @@ static int s3c24xx_spi_remove(struct platform_device *dev)
 
 static int s3c24xx_spi_suspend(struct platform_device *pdev, pm_message_t msg)
 {
-        struct s3c24xx_spi *hw = platform_get_drvdata(dev);
+        struct s3c24xx_spi *hw = platform_get_drvdata(pdev);
 
         clk_disable(hw->clk);
         return 0;
@@ -413,7 +413,7 @@ static int s3c24xx_spi_suspend(struct platform_device *pdev, pm_message_t msg)
 
 static int s3c24xx_spi_resume(struct platform_device *pdev)
 {
-        struct s3c24xx_spi *hw = platform_get_drvdata(dev);
+        struct s3c24xx_spi *hw = platform_get_drvdata(pdev);
 
         clk_enable(hw->clk);
         return 0;