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scsi: mpt3sas: Introduce mpt3sas_get_st_from_smid()

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Abstract accesses to the scsi_lookup array by introducing
mpt3sas_get_st_from_smid().

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke
2018-01-04 04:57:05 -08:00
committed by Martin K. Petersen
parent 02a386df36
commit 12e7c6782b
4 changed files with 27 additions and 8 deletions
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7
drivers/scsi/mpt3sas/mpt3sas_scsih.c
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@@ -2779,7 +2779,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
}
if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
scsi_lookup = mpt3sas_get_st_from_smid(ioc, smid_task);
dtmprintk(ioc, pr_info(MPT3SAS_FMT
"sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
@@ -2797,7 +2797,8 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
mpt3sas_scsih_set_tm_flag(ioc, handle);
init_completion(&ioc->tm_cmds.done);
if ((type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) &&
(scsi_lookup->msix_io < ioc->reply_queue_count))
scsi_lookup &&
(scsi_lookup->msix_io < ioc->reply_queue_count))
msix_task = scsi_lookup->msix_io;
else
msix_task = 0;
@@ -2838,7 +2839,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
switch (type) {
case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
rc = SUCCESS;
if (scsi_lookup->scmd == NULL)
if (scsi_lookup && scsi_lookup->scmd == NULL)
break;
rc = FAILED;
break;