From: James Smart <jsmart2021@gmail.com>
Date: Tue, 12 Mar 2019 16:30:04 -0700
Subject: [PATCH] scsi: lpfc: Resolve inconsistent check of hdwq in
lpfc_scsi_cmd_iocb_cmpl
References: bsc#1136217,jsc#SLE-4722
Git-commit: ff6bf89717b0dc7b8dd0934d1c065f29069831e7
Patch-mainline: v5.2-rc1
A prior patch which added support for non-uniform allocation of MSIX
vectors now causes a smatch complaint:
drivers/scsi/lpfc/lpfc_scsi.c:3674 lpfc_scsi_cmd_iocb_cmpl()
error: we previously assumed 'phba->sli4_hba.hdwq' could be
null (see line 3667)
Resolve by removing the unnecessary check for a NULL hdwq table.
Fixes 6a828b0f6192: ("scsi: lpfc: Support non-uniform allocation of MSIX vectors to hardware queues")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/lpfc/lpfc_scsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 7d94a4c584cc..e1671c2da363 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3670,7 +3670,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (phba->cpucheck_on & LPFC_CHECK_SCSI_IO) {
cpu = smp_processor_id();
- if (cpu < LPFC_CHECK_CPU_CNT)
+ if (cpu < LPFC_CHECK_CPU_CNT && phba->sli4_hba.hdwq)
phba->sli4_hba.hdwq[idx].cpucheck_cmpl_io[cpu]++;
}
#endif
--
2.16.4