[SCSI] add residual argument to scsi_execute and scsi_execute_req

scsi_execute() and scsi_execute_req() discard the residual length
information. Some callers need it. This adds residual argument
(optional) to scsi_execute and scsi_execute_req.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 5081b3981d3c..62b28d58e65e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -884,7 +884,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
                  * flush everything.
                  */
                 res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
-                                       SD_TIMEOUT, SD_MAX_RETRIES);
+                                       SD_TIMEOUT, SD_MAX_RETRIES, NULL);
                 if (res == 0)
                         break;
         }
@@ -1134,7 +1134,7 @@ sd_spinup_disk(struct scsi_disk *sdkp)
                         the_result = scsi_execute_req(sdkp->device, cmd,
                                                       DMA_NONE, NULL, 0,
                                                       &sshdr, SD_TIMEOUT,
-                                                      SD_MAX_RETRIES);
+                                                      SD_MAX_RETRIES, NULL);
 
                         /*
                          * If the drive has indicated to us that it
@@ -1192,7 +1192,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
                                         cmd[4] |= 1 << 4;
                                 scsi_execute_req(sdkp->device, cmd, DMA_NONE,
                                                  NULL, 0, &sshdr,
-                                                 SD_TIMEOUT, SD_MAX_RETRIES);
+                                                 SD_TIMEOUT, SD_MAX_RETRIES,
+                                                 NULL);
                                 spintime_expire = jiffies + 100 * HZ;
                                 spintime = 1;
                         }
@@ -1306,7 +1307,7 @@ repeat:
                 
                 the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
                                               buffer, longrc ? 13 : 8, &sshdr,
-                                              SD_TIMEOUT, SD_MAX_RETRIES);
+                                              SD_TIMEOUT, SD_MAX_RETRIES, NULL);
 
                 if (media_not_present(sdkp, &sshdr))
                         return;
@@ -1986,7 +1987,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
                 return -ENODEV;
 
         res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
-                               SD_TIMEOUT, SD_MAX_RETRIES);
+                               SD_TIMEOUT, SD_MAX_RETRIES, NULL);
         if (res) {
                 sd_printk(KERN_WARNING, sdkp, "START_STOP FAILED\n");
                 sd_print_result(sdkp, res);