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* [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list'
@ 2018-10-26  7:07 YueHaibing
  2018-10-26  8:17 ` John Garry
  2018-11-06  3:44 ` Martin K. Petersen
  0 siblings, 2 replies; 3+ messages in thread
From: YueHaibing @ 2018-10-26  7:07 UTC (permalink / raw)
  To: john.garry, jejb, martin.petersen; +Cc: linux-kernel, linux-scsi, YueHaibing

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/hisi_sas/hisi_sas_v1_hw.c: In function 'start_delivery_v1_hw':
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c:907:20: warning:
 variable 'dq_list' set but not used [-Wunused-but-set-variable]

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c: In function 'start_delivery_v2_hw':
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c:1671:20: warning:
 variable 'dq_list' set but not used [-Wunused-but-set-variable]

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c: In function 'start_delivery_v3_hw':
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:889:20: warning:
 variable 'dq_list' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
fa222db0b036 ("scsi: hisi_sas: Don't lock DQ for complete task sending")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 --
 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 --
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 --
 3 files changed, 6 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index f0e457e..8df822a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -904,11 +904,9 @@ static void start_delivery_v1_hw(struct hisi_sas_dq *dq)
 {
 	struct hisi_hba *hisi_hba = dq->hisi_hba;
 	struct hisi_sas_slot *s, *s1, *s2 = NULL;
-	struct list_head *dq_list;
 	int dlvry_queue = dq->id;
 	int wp;
 
-	dq_list = &dq->list;
 	list_for_each_entry_safe(s, s1, &dq->list, delivery) {
 		if (!s->ready)
 			break;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index cc36b64..77a85ea 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -1670,11 +1670,9 @@ static void start_delivery_v2_hw(struct hisi_sas_dq *dq)
 {
 	struct hisi_hba *hisi_hba = dq->hisi_hba;
 	struct hisi_sas_slot *s, *s1, *s2 = NULL;
-	struct list_head *dq_list;
 	int dlvry_queue = dq->id;
 	int wp;
 
-	dq_list = &dq->list;
 	list_for_each_entry_safe(s, s1, &dq->list, delivery) {
 		if (!s->ready)
 			break;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index bd4ce38..a369450 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -886,11 +886,9 @@ static void start_delivery_v3_hw(struct hisi_sas_dq *dq)
 {
 	struct hisi_hba *hisi_hba = dq->hisi_hba;
 	struct hisi_sas_slot *s, *s1, *s2 = NULL;
-	struct list_head *dq_list;
 	int dlvry_queue = dq->id;
 	int wp;
 
-	dq_list = &dq->list;
 	list_for_each_entry_safe(s, s1, &dq->list, delivery) {
 		if (!s->ready)
 			break;
-- 
2.7.0



^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list'
  2018-10-26  7:07 [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list' YueHaibing
@ 2018-10-26  8:17 ` John Garry
  2018-11-06  3:44 ` Martin K. Petersen
  1 sibling, 0 replies; 3+ messages in thread
From: John Garry @ 2018-10-26  8:17 UTC (permalink / raw)
  To: YueHaibing, jejb, martin.petersen; +Cc: linux-kernel, linux-scsi

On 26/10/2018 08:07, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c: In function 'start_delivery_v1_hw':
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c:907:20: warning:
>  variable 'dq_list' set but not used [-Wunused-but-set-variable]
>
> drivers/scsi/hisi_sas/hisi_sas_v2_hw.c: In function 'start_delivery_v2_hw':
> drivers/scsi/hisi_sas/hisi_sas_v2_hw.c:1671:20: warning:
>  variable 'dq_list' set but not used [-Wunused-but-set-variable]
>
> drivers/scsi/hisi_sas/hisi_sas_v3_hw.c: In function 'start_delivery_v3_hw':
> drivers/scsi/hisi_sas/hisi_sas_v3_hw.c:889:20: warning:
>  variable 'dq_list' set but not used [-Wunused-but-set-variable]
>
> It never used since introduction in commit
> fa222db0b036 ("scsi: hisi_sas: Don't lock DQ for complete task sending")
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>

Acked-by: John Garry <john.garry@huawei.com>



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list'
  2018-10-26  7:07 [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list' YueHaibing
  2018-10-26  8:17 ` John Garry
@ 2018-11-06  3:44 ` Martin K. Petersen
  1 sibling, 0 replies; 3+ messages in thread
From: Martin K. Petersen @ 2018-11-06  3:44 UTC (permalink / raw)
  To: YueHaibing; +Cc: john.garry, jejb, martin.petersen, linux-kernel, linux-scsi


YueHaibing,

> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c: In function 'start_delivery_v1_hw':
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c:907:20: warning:
>  variable 'dq_list' set but not used [-Wunused-but-set-variable]

Applied to 4.20/scsi-fixes. Thank you!

-- 
Martin K. Petersen	Oracle Linux Engineering

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2018-10-26  7:07 [PATCH -next] scsi: hisi_sas: Remove set but not used variable 'dq_list' YueHaibing
2018-10-26  8:17 ` John Garry
2018-11-06  3:44 ` Martin K. Petersen

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