Merge remote branch 'origin' into secretlab/next-devicetree

Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

3 files changed, 12 insertions, 29 deletions

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 60cd4ec51eae..fef49521cbc3 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2245,7 +2245,7 @@ static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device,
         DECLARE_COMPLETION_ONSTACK(comp);
         int wait;
         unsigned long flags;
-        signed long timeout = init_timeout * HZ;
+        signed long timeout = IBMVFC_ABORT_WAIT_TIMEOUT * HZ;
 
         ENTER;
         do {
@@ -2919,6 +2919,7 @@ static DEVICE_ATTR(log_level, S_IRUGO | S_IWUSR,
 #ifdef CONFIG_SCSI_IBMVFC_TRACE
 /**
  * ibmvfc_read_trace - Dump the adapter trace
+ * @filp:               open sysfs file
  * @kobj:               kobject struct
  * @bin_attr:   bin_attribute struct
  * @buf:                buffer
@@ -2928,7 +2929,7 @@ static DEVICE_ATTR(log_level, S_IRUGO | S_IWUSR,
  * Return value:
  *      number of bytes printed to buffer
  **/
-static ssize_t ibmvfc_read_trace(struct kobject *kobj,
+static ssize_t ibmvfc_read_trace(struct file *filp, struct kobject *kobj,
                                  struct bin_attribute *bin_attr,
                                  char *buf, loff_t off, size_t count)
 {
@@ -3013,6 +3014,7 @@ static struct ibmvfc_async_crq *ibmvfc_next_async_crq(struct ibmvfc_host *vhost)
         if (crq->valid & 0x80) {
                 if (++async_crq->cur == async_crq->size)
                         async_crq->cur = 0;
+                rmb();
         } else
                 crq = NULL;
 
@@ -3035,6 +3037,7 @@ static struct ibmvfc_crq *ibmvfc_next_crq(struct ibmvfc_host *vhost)
         if (crq->valid & 0x80) {
                 if (++queue->cur == queue->size)
                         queue->cur = 0;
+                rmb();
         } else
                 crq = NULL;
 
@@ -3083,12 +3086,14 @@ static void ibmvfc_tasklet(void *data)
                 while ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
                         ibmvfc_handle_async(async, vhost);
                         async->valid = 0;
+                        wmb();
                 }
 
                 /* Pull all the valid messages off the CRQ */
                 while ((crq = ibmvfc_next_crq(vhost)) != NULL) {
                         ibmvfc_handle_crq(crq, vhost);
                         crq->valid = 0;
+                        wmb();
                 }
 
                 vio_enable_interrupts(vdev);
@@ -3096,10 +3101,12 @@ static void ibmvfc_tasklet(void *data)
                         vio_disable_interrupts(vdev);
                         ibmvfc_handle_async(async, vhost);
                         async->valid = 0;
+                        wmb();
                 } else if ((crq = ibmvfc_next_crq(vhost)) != NULL) {
                         vio_disable_interrupts(vdev);
                         ibmvfc_handle_crq(crq, vhost);
                         crq->valid = 0;
+                        wmb();
                 } else
                         done = 1;
         }
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
index d25106a958d7..7e9742764e4b 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc.h
@@ -38,6 +38,7 @@
 #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT        \
                 (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT)
 #define IBMVFC_INIT_TIMEOUT             120
+#define IBMVFC_ABORT_WAIT_TIMEOUT       40
 #define IBMVFC_MAX_REQUESTS_DEFAULT     100
 
 #define IBMVFC_DEBUG                    0
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index cc38fefc2612..aad35cc41e49 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -323,16 +323,6 @@ static void set_srp_direction(struct scsi_cmnd *cmd,
                 srp_cmd->buf_fmt = fmt;
 }
 
-static void unmap_sg_list(int num_entries,
-                struct device *dev,
-                struct srp_direct_buf *md)
-{
-        int i;
-
-        for (i = 0; i < num_entries; ++i)
-                dma_unmap_single(dev, md[i].va, md[i].len, DMA_BIDIRECTIONAL);
-}
-
 /**
  * unmap_cmd_data: - Unmap data pointed in srp_cmd based on the format
  * @cmd:        srp_cmd whose additional_data member will be unmapped
@@ -350,24 +340,9 @@ static void unmap_cmd_data(struct srp_cmd *cmd,
 
         if (out_fmt == SRP_NO_DATA_DESC && in_fmt == SRP_NO_DATA_DESC)
                 return;
-        else if (out_fmt == SRP_DATA_DESC_DIRECT ||
-                 in_fmt == SRP_DATA_DESC_DIRECT) {
-                struct srp_direct_buf *data =
-                        (struct srp_direct_buf *) cmd->add_data;
-                dma_unmap_single(dev, data->va, data->len, DMA_BIDIRECTIONAL);
-        } else {
-                struct srp_indirect_buf *indirect =
-                        (struct srp_indirect_buf *) cmd->add_data;
-                int num_mapped = indirect->table_desc.len /
-                        sizeof(struct srp_direct_buf);
 
-                if (num_mapped <= MAX_INDIRECT_BUFS) {
-                        unmap_sg_list(num_mapped, dev, &indirect->desc_list[0]);
-                        return;
-                }
-
-                unmap_sg_list(num_mapped, dev, evt_struct->ext_list);
-        }
+        if (evt_struct->cmnd)
+                scsi_dma_unmap(evt_struct->cmnd);
 }
 
 static int map_sg_list(struct scsi_cmnd *cmd, int nseg,