linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] scsi: advansys: Remove unnecessary parentheses
@ 2018-09-20 20:58 Nathan Chancellor
  2018-09-21  3:11 ` Martin K. Petersen
  2018-09-21  5:57 ` Hannes Reinecke
  0 siblings, 2 replies; 4+ messages in thread
From: Nathan Chancellor @ 2018-09-20 20:58 UTC (permalink / raw)
  To: Matthew Wilcox, Hannes Reinecke, James E.J. Bottomley,
	Martin K. Petersen
  Cc: linux-scsi, linux-kernel, Nathan Chancellor

Clang warns when multiple pairs of parentheses are used for a single
conditional statement.

drivers/scsi/advansys.c:6451:20: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
                                if ((sdtr_data == 0xFF)) {
                                     ~~~~~~~~~~^~~~~~~
drivers/scsi/advansys.c:6451:20: note: remove extraneous parentheses
around the comparison to silence this warning
                                if ((sdtr_data == 0xFF)) {
                                    ~          ^      ~
drivers/scsi/advansys.c:6451:20: note: use '=' to turn this equality
comparison into an assignment
                                if ((sdtr_data == 0xFF)) {
                                               ^~
                                               =
1 warning generated.

Link: https://github.com/ClangBuiltLinux/linux/issues/155
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 drivers/scsi/advansys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 713f69033f20..44c96199e00a 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -6448,7 +6448,7 @@ static void AscIsrChipHalted(ASC_DVC_VAR *asc_dvc)
 				sdtr_data =
 				    AscCalSDTRData(asc_dvc, ext_msg.xfer_period,
 						   ext_msg.req_ack_offset);
-				if ((sdtr_data == 0xFF)) {
+				if (sdtr_data == 0xFF) {
 
 					q_cntl |= QC_MSG_OUT;
 					asc_dvc->init_sdtr &= ~target_id;
-- 
2.19.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] scsi: advansys: Remove unnecessary parentheses
  2018-09-20 20:58 [PATCH] scsi: advansys: Remove unnecessary parentheses Nathan Chancellor
@ 2018-09-21  3:11 ` Martin K. Petersen
  2018-09-21  5:57 ` Hannes Reinecke
  1 sibling, 0 replies; 4+ messages in thread
From: Martin K. Petersen @ 2018-09-21  3:11 UTC (permalink / raw)
  To: Nathan Chancellor
  Cc: Matthew Wilcox, Hannes Reinecke, James E.J. Bottomley,
	Martin K. Petersen, linux-scsi, linux-kernel


Nathan,

> Clang warns when multiple pairs of parentheses are used for a single
> conditional statement.
>
> drivers/scsi/advansys.c:6451:20: warning: equality comparison with
> extraneous parentheses [-Wparentheses-equality]
>                                 if ((sdtr_data == 0xFF)) {
>                                      ~~~~~~~~~~^~~~~~~
> drivers/scsi/advansys.c:6451:20: note: remove extraneous parentheses
> around the comparison to silence this warning
>                                 if ((sdtr_data == 0xFF)) {
>                                     ~          ^      ~
> drivers/scsi/advansys.c:6451:20: note: use '=' to turn this equality
> comparison into an assignment
>                                 if ((sdtr_data == 0xFF)) {
>                                                ^~
>                                                =
> 1 warning generated.

Applied to 4.20/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] scsi: advansys: Remove unnecessary parentheses
  2018-09-20 20:58 [PATCH] scsi: advansys: Remove unnecessary parentheses Nathan Chancellor
  2018-09-21  3:11 ` Martin K. Petersen
@ 2018-09-21  5:57 ` Hannes Reinecke
  2018-09-26  0:48   ` Martin K. Petersen
  1 sibling, 1 reply; 4+ messages in thread
From: Hannes Reinecke @ 2018-09-21  5:57 UTC (permalink / raw)
  To: Nathan Chancellor, Matthew Wilcox, James E.J. Bottomley,
	Martin K. Petersen
  Cc: linux-scsi, linux-kernel

On 9/20/18 10:58 PM, Nathan Chancellor wrote:
> Clang warns when multiple pairs of parentheses are used for a single
> conditional statement.
> 
> drivers/scsi/advansys.c:6451:20: warning: equality comparison with
> extraneous parentheses [-Wparentheses-equality]
>                                  if ((sdtr_data == 0xFF)) {
>                                       ~~~~~~~~~~^~~~~~~
> drivers/scsi/advansys.c:6451:20: note: remove extraneous parentheses
> around the comparison to silence this warning
>                                  if ((sdtr_data == 0xFF)) {
>                                      ~          ^      ~
> drivers/scsi/advansys.c:6451:20: note: use '=' to turn this equality
> comparison into an assignment
>                                  if ((sdtr_data == 0xFF)) {
>                                                 ^~
>                                                 =
> 1 warning generated.
> 
> Link: https://github.com/ClangBuiltLinux/linux/issues/155
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
> ---
>   drivers/scsi/advansys.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
> index 713f69033f20..44c96199e00a 100644
> --- a/drivers/scsi/advansys.c
> +++ b/drivers/scsi/advansys.c
> @@ -6448,7 +6448,7 @@ static void AscIsrChipHalted(ASC_DVC_VAR *asc_dvc)
>   				sdtr_data =
>   				    AscCalSDTRData(asc_dvc, ext_msg.xfer_period,
>   						   ext_msg.req_ack_offset);
> -				if ((sdtr_data == 0xFF)) {
> +				if (sdtr_data == 0xFF) {
>   
>   					q_cntl |= QC_MSG_OUT;
>   					asc_dvc->init_sdtr &= ~target_id;
> 
Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.com			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] scsi: advansys: Remove unnecessary parentheses
  2018-09-21  5:57 ` Hannes Reinecke
@ 2018-09-26  0:48   ` Martin K. Petersen
  0 siblings, 0 replies; 4+ messages in thread
From: Martin K. Petersen @ 2018-09-26  0:48 UTC (permalink / raw)
  To: Hannes Reinecke
  Cc: Nathan Chancellor, Matthew Wilcox, James E.J. Bottomley,
	Martin K. Petersen, linux-scsi, linux-kernel


Hannes,

> On 9/20/18 10:58 PM, Nathan Chancellor wrote:
>> Clang warns when multiple pairs of parentheses are used for a single
>> conditional statement.

Applied to 4.20/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2018-09-26  0:49 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-20 20:58 [PATCH] scsi: advansys: Remove unnecessary parentheses Nathan Chancellor
2018-09-21  3:11 ` Martin K. Petersen
2018-09-21  5:57 ` Hannes Reinecke
2018-09-26  0:48   ` Martin K. Petersen

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).