[SCSI] use scmd_id(), scmd_channel() throughout code

Wrap a highly common idiom.  Makes the code easier to read, helps pave
the way for sdev->{id,channel} removal, and adds a token that can easily
by grepped-for in the future.

There are a couple sdev_id() and scmd_printk() updates thrown in as well.

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

2 files changed, 11 insertions, 10 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 5e023dca4e52..cfb46c241b38 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -398,7 +398,7 @@ ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
 
 /******************************** Macros **************************************/
 #define BUILD_SCSIID(ahd, cmd)						\
-	((((cmd)->device->id << TID_SHIFT) & TID) | (ahd)->our_id)
+	(((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id)
 
 /*
  * Return a string describing the driver.
@@ -685,7 +685,7 @@ ahd_linux_bus_reset(struct scsi_cmnd *cmd)
 		       ahd_name(ahd), cmd);
 #endif
 	ahd_lock(ahd, &s);
-	found = ahd_reset_channel(ahd, cmd->device->channel + 'A',
+	found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
 				  /*initiate reset*/TRUE);
 	ahd_unlock(ahd, &s);
 
@@ -2110,8 +2110,9 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 
 		/* Any SCB for this device will do for a target reset */
 		LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
-		  	if (ahd_match_scb(ahd, pending_scb, cmd->device->id,
-					  cmd->device->channel + 'A',
+		  	if (ahd_match_scb(ahd, pending_scb,
+					  scmd_id(cmd),
+					  scmd_channel(cmd) + 'A',
 					  CAM_LUN_WILDCARD,
 					  SCB_LIST_NULL, ROLE_INITIATOR) == 0)
 				break;
@@ -2198,7 +2199,7 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 	if (last_phase != P_BUSFREE
 	 && (SCB_GET_TAG(pending_scb) == active_scbptr
 	     || (flag == SCB_DEVICE_RESET
-		 && SCSIID_TARGET(ahd, saved_scsiid) == cmd->device->id))) {
+		 && SCSIID_TARGET(ahd, saved_scsiid) == scmd_id(cmd)))) {
 
 		/*
 		 * We're active on the bus, so assert ATN
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 7074ab95d1cc..1861407422e4 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -686,7 +686,7 @@ ahc_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev,
 	u_int	 channel;
 
 	ahc = *((struct ahc_softc **)sdev->host->hostdata);
-	channel = sdev->channel;
+	channel = sdev_channel(sdev);
 
 	bh = scsi_bios_ptable(bdev);
 	if (bh) {
@@ -759,7 +759,7 @@ ahc_linux_bus_reset(struct scsi_cmnd *cmd)
 	ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
 
 	ahc_lock(ahc, &flags);
-	found = ahc_reset_channel(ahc, cmd->device->channel + 'A',
+	found = ahc_reset_channel(ahc, scmd_channel(cmd) + 'A',
 				  /*initiate reset*/TRUE);
 	ahc_unlock(ahc, &flags);
 
@@ -2172,8 +2172,8 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 
 		/* Any SCB for this device will do for a target reset */
 		LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) {
-		  	if (ahc_match_scb(ahc, pending_scb, cmd->device->id,
-					  cmd->device->channel + 'A',
+		  	if (ahc_match_scb(ahc, pending_scb, scmd_id(cmd),
+					  scmd_channel(cmd) + 'A',
 					  CAM_LUN_WILDCARD,
 					  SCB_LIST_NULL, ROLE_INITIATOR) == 0)
 				break;
@@ -2260,7 +2260,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 	if (last_phase != P_BUSFREE
 	 && (pending_scb->hscb->tag == active_scb_index
 	  || (flag == SCB_DEVICE_RESET
-	   && SCSIID_TARGET(ahc, saved_scsiid) == cmd->device->id))) {
+	   && SCSIID_TARGET(ahc, saved_scsiid) == scmd_id(cmd)))) {
 
 		/*
 		 * We're active on the bus, so assert ATN