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scsi: qla1280: Pass the host pointer directly to several functions

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Pass the struct Scsi_Host pointer directly to
_qla1280_wait_for_single_command(), qla1280_wait_for_single_command(),
qla1280_wait_for_pending_commands(), and qla1280_error_action().
Introduce the local variable 'host' in error handling functions to avoid
repetitive dereferencing of cmd->device->host. This patch prepares for
enabling lock context analysis. No functionality has been changed.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/4c2a8952fd8d3c8742af5685d0bb3a1677ba92b5.1790360262.git.bvanassche@acm.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
This commit is contained in:
Bart Van Assche 2026-09-25 11:26:24 -07:00 committed by Martin K. Petersen (Oracle)
parent 6210d20f7f
commit 5bb1688785
1 changed files with 24 additions and 19 deletions
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43
drivers/scsi/qla1280.c
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@ -735,15 +735,15 @@ static void qla1280_mailbox_timeout(struct timer_list *t)
}
static int
_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
_qla1280_wait_for_single_command(struct Scsi_Host *host, struct srb *sp,
struct completion *wait)
{
int status = FAILED;
struct scsi_cmnd *cmd = sp->cmd;
spin_unlock_irq(&ha->host->host_lock);
spin_unlock_irq(&host->host_lock);
wait_for_completion_timeout(wait, 4*HZ);
spin_lock_irq(&ha->host->host_lock);
spin_lock_irq(&host->host_lock);
sp->wait = NULL;
if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
status = SUCCESS;
@ -753,16 +753,17 @@ _qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
}
static int
qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
qla1280_wait_for_single_command(struct Scsi_Host *host, struct srb *sp)
{
DECLARE_COMPLETION_ONSTACK(wait);
sp->wait = &wait;
return _qla1280_wait_for_single_command(ha, sp, &wait);
return _qla1280_wait_for_single_command(host, sp, &wait);
}
static int
qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, struct Scsi_Host *host,
int bus, int target)
{
int cnt;
int status;
@ -785,7 +786,7 @@ qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
if (target >= 0 && SCSI_TCN_32(cmd) != target)
continue;
status = qla1280_wait_for_single_command(ha, sp);
status = qla1280_wait_for_single_command(host, sp);
if (status == FAILED)
break;
}
@ -808,7 +809,8 @@ qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
*
**************************************************************************/
static int
qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
qla1280_error_action(struct Scsi_Host *host, struct scsi_cmnd *cmd,
enum action action)
{
struct scsi_qla_host *ha;
int bus, target, lun;
@ -914,7 +916,7 @@ qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
*/
if (found >= 0)
result = _qla1280_wait_for_single_command(ha, sp, &wait);
result = _qla1280_wait_for_single_command(host, sp, &wait);
if (action == ABORT_COMMAND && result != SUCCESS) {
printk(KERN_WARNING
@ -934,7 +936,7 @@ qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
* to wait for them.
*/
if (result == SUCCESS && wait_for_bus >= 0) {
result = qla1280_wait_for_pending_commands(ha,
result = qla1280_wait_for_pending_commands(ha, host,
wait_for_bus, wait_for_target);
}
@ -951,11 +953,12 @@ qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
static int
qla1280_eh_abort(struct scsi_cmnd * cmd)
{
struct Scsi_Host *host = cmd->device->host;
int rc;
spin_lock_irq(&cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, ABORT_COMMAND);
spin_unlock_irq(&cmd->device->host->host_lock);
spin_lock_irq(&host->host_lock);
rc = qla1280_error_action(host, cmd, ABORT_COMMAND);
spin_unlock_irq(&host->host_lock);
return rc;
}
@ -967,11 +970,12 @@ qla1280_eh_abort(struct scsi_cmnd * cmd)
static int
qla1280_eh_device_reset(struct scsi_cmnd *cmd)
{
struct Scsi_Host *host = cmd->device->host;
int rc;
spin_lock_irq(&cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, DEVICE_RESET);
spin_unlock_irq(&cmd->device->host->host_lock);
spin_lock_irq(&host->host_lock);
rc = qla1280_error_action(host, cmd, DEVICE_RESET);
spin_unlock_irq(&host->host_lock);
return rc;
}
@ -983,11 +987,12 @@ qla1280_eh_device_reset(struct scsi_cmnd *cmd)
static int
qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
{
struct Scsi_Host *host = cmd->device->host;
int rc;
spin_lock_irq(&cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, BUS_RESET);
spin_unlock_irq(&cmd->device->host->host_lock);
spin_lock_irq(&host->host_lock);
rc = qla1280_error_action(host, cmd, BUS_RESET);
spin_unlock_irq(&host->host_lock);
return rc;
}