* [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait
@ 2018-09-26 13:08 Colin King
2018-09-27 11:15 ` Rangankar, Manish
2018-09-28 6:30 ` [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Martin K. Petersen
0 siblings, 2 replies; 6+ messages in thread
From: Colin King @ 2018-09-26 13:08 UTC (permalink / raw)
To: QLogic-Storage-Upstream, James E . J . Bottomley,
Martin K . Petersen, linux-scsi
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
The check for a non-zero drvr_wait is redundant as the same check
is performed earlier in the outer while loop, the inner check will
always be true if we reached this point inside the while loop.
Remove the redundant if check.
Detected by cppcheck:
(warning) Identical inner 'if' condition is always true.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/scsi/qla4xxx/ql4_init.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 52b1a0bc93c9..1ef74aa2d00a 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -766,12 +766,10 @@ int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
while (drvr_wait) {
if (ql4xxx_lock_drvr(a) = 0) {
ssleep(QL4_LOCK_DRVR_SLEEP);
- if (drvr_wait) {
- DEBUG2(printk("scsi%ld: %s: Waiting for "
- "Global Init Semaphore(%d)...\n",
- a->host_no,
- __func__, drvr_wait));
- }
+ DEBUG2(printk("scsi%ld: %s: Waiting for "
+ "Global Init Semaphore(%d)...\n",
+ a->host_no,
+ __func__, drvr_wait));
drvr_wait -= QL4_LOCK_DRVR_SLEEP;
} else {
DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* RE: [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait
2018-09-26 13:08 [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Colin King
@ 2018-09-27 11:15 ` Rangankar, Manish
2020-12-04 19:18 ` [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval Colin King
2018-09-28 6:30 ` [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Martin K. Petersen
1 sibling, 1 reply; 6+ messages in thread
From: Rangankar, Manish @ 2018-09-27 11:15 UTC (permalink / raw)
To: Colin King, Dept-Eng QLogic Storage Upstream,
James E . J . Bottomley, Martin K . Petersen, linux-scsi
Cc: kernel-janitors, linux-kernel
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval
2018-09-27 11:15 ` Rangankar, Manish
@ 2020-12-04 19:18 ` Colin King
2020-12-08 1:58 ` Martin K. Petersen
2020-12-09 17:23 ` Martin K. Petersen
0 siblings, 2 replies; 6+ messages in thread
From: Colin King @ 2020-12-04 19:18 UTC (permalink / raw)
To: Nilesh Javali, Manish Rangankar, GR-QLogic-Storage-Upstream,
James E . J . Bottomley, Martin K . Petersen, linux-scsi
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
The variable rval is being initialized with a value that is never read
and it is being updated later with a new value. The initialization is
redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/scsi/qla4xxx/ql4_nx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index fd30fbd0d33c..e6e35e6958f6 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1767,7 +1767,7 @@ qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
{
- int rval = QLA_ERROR;
+ int rval;
/*
* FW Load priority:
--
2.29.2
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval
2020-12-04 19:18 ` [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval Colin King
@ 2020-12-08 1:58 ` Martin K. Petersen
2020-12-09 17:23 ` Martin K. Petersen
1 sibling, 0 replies; 6+ messages in thread
From: Martin K. Petersen @ 2020-12-08 1:58 UTC (permalink / raw)
To: Colin King
Cc: Nilesh Javali, Manish Rangankar, GR-QLogic-Storage-Upstream,
James E . J . Bottomley, Martin K . Petersen, linux-scsi,
kernel-janitors, linux-kernel
Colin,
> The variable rval is being initialized with a value that is never read
> and it is being updated later with a new value. The initialization is
> redundant and can be removed.
Applied to 5.11/scsi-staging, thanks!
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval
2020-12-04 19:18 ` [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval Colin King
2020-12-08 1:58 ` Martin K. Petersen
@ 2020-12-09 17:23 ` Martin K. Petersen
1 sibling, 0 replies; 6+ messages in thread
From: Martin K. Petersen @ 2020-12-09 17:23 UTC (permalink / raw)
To: Nilesh Javali, James E . J . Bottomley, Manish Rangankar,
Colin King, linux-scsi, GR-QLogic-Storage-Upstream
Cc: Martin K . Petersen, kernel-janitors, linux-kernel
On Fri, 4 Dec 2020 19:18:10 +0000, Colin King wrote:
> The variable rval is being initialized with a value that is never read
> and it is being updated later with a new value. The initialization is
> redundant and can be removed.
Applied to 5.11/scsi-queue, thanks!
[1/1] scsi: qla4xxx: remove redundant assignment to variable rval
https://git.kernel.org/mkp/scsi/c/3a5b9fa2cc5f
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait
2018-09-26 13:08 [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Colin King
2018-09-27 11:15 ` Rangankar, Manish
@ 2018-09-28 6:30 ` Martin K. Petersen
1 sibling, 0 replies; 6+ messages in thread
From: Martin K. Petersen @ 2018-09-28 6:30 UTC (permalink / raw)
To: Colin King
Cc: QLogic-Storage-Upstream, James E . J . Bottomley,
Martin K . Petersen, linux-scsi, kernel-janitors, linux-kernel
Colin,
> The check for a non-zero drvr_wait is redundant as the same check is
> performed earlier in the outer while loop, the inner check will always
> be true if we reached this point inside the while loop. Remove the
> redundant if check.
Applied to 4.20/scsi-queue. Thanks!
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-12-09 17:23 UTC | newest]
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2018-09-26 13:08 [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Colin King
2018-09-27 11:15 ` Rangankar, Manish
2020-12-04 19:18 ` [PATCH] scsi: qla4xxx: remove redundant assignment to variable rval Colin King
2020-12-08 1:58 ` Martin K. Petersen
2020-12-09 17:23 ` Martin K. Petersen
2018-09-28 6:30 ` [PATCH] scsi: qla4xxx: remove redundant check on drvr_wait Martin K. Petersen
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