From bf8873781831c7799255e0932848401070185dd0 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Fri, 26 Feb 2010 16:01:47 -0600 Subject: cciss: eliminate unnecessary pointer use in cciss scsi code cciss: eliminate unnecessary pointer use in cciss scsi code An extra level of indirection was being used in some places for no real reason. Signed-off-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- drivers/block/cciss_scsi.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) (limited to 'drivers/block/cciss_scsi.c') diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index c4582323a07d..6dc15b669694 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -1400,7 +1400,7 @@ cciss_scatter_gather(struct pci_dev *pdev, static int cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *)) { - ctlr_info_t **c; + ctlr_info_t *c; int ctlr, rc; unsigned char scsi3addr[8]; CommandList_struct *cp; @@ -1408,8 +1408,8 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd // Get the ptr to our adapter structure (hba[i]) out of cmd->host. // We violate cmd->host privacy here. (Is there another way?) - c = (ctlr_info_t **) &cmd->device->host->hostdata[0]; - ctlr = (*c)->ctlr; + c = (ctlr_info_t *) cmd->device->host->hostdata[0]; + ctlr = c->ctlr; rc = lookup_scsi3addr(ctlr, cmd->device->channel, cmd->device->id, cmd->device->lun, scsi3addr); @@ -1432,7 +1432,7 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd see what the device thinks of it. */ spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - cp = scsi_cmd_alloc(*c); + cp = scsi_cmd_alloc(c); spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); if (cp == NULL) { /* trouble... */ printk("scsi_cmd_alloc returned NULL!\n"); @@ -1490,15 +1490,14 @@ cciss_scsi_queue_command (struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd BUG(); break; } - - cciss_scatter_gather((*c)->pdev, cp, cmd); // Fill the SG list + cciss_scatter_gather(c->pdev, cp, cmd); /* Put the request on the tail of the request queue */ spin_lock_irqsave(CCISS_LOCK(ctlr), flags); - addQ(&(*c)->reqQ, cp); - (*c)->Qdepth++; - start_io(*c); + addQ(&c->reqQ, cp); + c->Qdepth++; + start_io(c); spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags); /* the cmd'll come back via intr handler in complete_scsi_command() */ @@ -1655,14 +1654,14 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_in_trouble; unsigned char lunaddr[8]; - ctlr_info_t **c; + ctlr_info_t *c; int ctlr; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0]; + c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (c == NULL) /* paranoia */ return FAILED; - ctlr = (*c)->ctlr; + ctlr = c->ctlr; printk(KERN_WARNING "cciss%d: resetting tape drive or medium changer.\n", ctlr); /* find the command that's giving us trouble */ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble; @@ -1672,7 +1671,7 @@ static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd) /* send a reset to the SCSI LUN which the command was sent to */ rc = sendcmd_withirq(CCISS_RESET_MSG, ctlr, NULL, 0, 0, lunaddr, TYPE_MSG); - if (rc == 0 && wait_for_device_to_become_ready(*c, lunaddr) == 0) + if (rc == 0 && wait_for_device_to_become_ready(c, lunaddr) == 0) return SUCCESS; printk(KERN_WARNING "cciss%d: resetting device failed.\n", ctlr); return FAILED; @@ -1683,14 +1682,14 @@ static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd) int rc; CommandList_struct *cmd_to_abort; unsigned char lunaddr[8]; - ctlr_info_t **c; + ctlr_info_t *c; int ctlr; /* find the controller to which the command to be aborted was sent */ - c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0]; + c = (ctlr_info_t *) scsicmd->device->host->hostdata[0]; if (c == NULL) /* paranoia */ return FAILED; - ctlr = (*c)->ctlr; + ctlr = c->ctlr; printk(KERN_WARNING "cciss%d: aborting tardy SCSI cmd\n", ctlr); /* find the command to be aborted */ -- cgit v1.2.3