* [PATCH -next] staging: vc04_services: fix used-but-set-variable warning
@ 2019-07-25 14:27 YueHaibing
2019-07-25 14:49 ` Greg KH
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: YueHaibing @ 2019-07-25 14:27 UTC (permalink / raw)
To: eric, wahrenst, gregkh, inf.braun, nishkadg.linux
Cc: linux-kernel, devel, linux-rpi-kernel, linux-arm-kernel,
bcm-kernel-feedback-list, YueHaibing
use variables 'local_entity_uc' and 'local_uc',
mute gcc used-but-set-variable warning:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
variable local_entity_uc set but not used [-Wunused-but-set-variable]
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
variable local_uc set but not used [-Wunused-but-set-variable]
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index cc4383d..04e6427 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -2861,15 +2861,13 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
} else {
vchiq_log_info(vchiq_susp_log_level,
"%s %s count %d, state count %d - suspending",
- __func__, entity, *entity_uc,
- arm_state->videocore_use_count);
+ __func__, entity, local_entity_uc, local_uc);
vchiq_arm_vcsuspend(state);
}
} else
vchiq_log_trace(vchiq_susp_log_level,
"%s %s count %d, state count %d",
- __func__, entity, *entity_uc,
- arm_state->videocore_use_count);
+ __func__, entity, local_entity_uc, local_uc);
unlock:
write_unlock_bh(&arm_state->susp_res_lock);
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH -next] staging: vc04_services: fix used-but-set-variable warning
2019-07-25 14:27 [PATCH -next] staging: vc04_services: fix used-but-set-variable warning YueHaibing
@ 2019-07-25 14:49 ` Greg KH
2019-07-26 9:26 ` [PATCH v2 " YueHaibing
2019-07-27 1:35 ` [PATCH v3 -next] staging: vc04_services: fix unused-but-set-variable warning YueHaibing
2 siblings, 0 replies; 6+ messages in thread
From: Greg KH @ 2019-07-25 14:49 UTC (permalink / raw)
To: YueHaibing
Cc: eric, wahrenst, inf.braun, nishkadg.linux, devel, linux-kernel,
bcm-kernel-feedback-list, linux-rpi-kernel, linux-arm-kernel
On Thu, Jul 25, 2019 at 10:27:16PM +0800, YueHaibing wrote:
> use variables 'local_entity_uc' and 'local_uc',
> mute gcc used-but-set-variable warning:
>
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
> variable local_entity_uc set but not used [-Wunused-but-set-variable]
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
> variable local_uc set but not used [-Wunused-but-set-variable]
>
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> index cc4383d..04e6427 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
> @@ -2861,15 +2861,13 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
> } else {
> vchiq_log_info(vchiq_susp_log_level,
> "%s %s count %d, state count %d - suspending",
> - __func__, entity, *entity_uc,
> - arm_state->videocore_use_count);
> + __func__, entity, local_entity_uc, local_uc);
> vchiq_arm_vcsuspend(state);
> }
> } else
> vchiq_log_trace(vchiq_susp_log_level,
> "%s %s count %d, state count %d",
> - __func__, entity, *entity_uc,
> - arm_state->videocore_use_count);
> + __func__, entity, local_entity_uc, local_uc);
Are you sure this is the correct way to solve this?
Why not just remove the local variables instead, as obviously they are
not being used.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 -next] staging: vc04_services: fix used-but-set-variable warning
2019-07-25 14:27 [PATCH -next] staging: vc04_services: fix used-but-set-variable warning YueHaibing
2019-07-25 14:49 ` Greg KH
@ 2019-07-26 9:26 ` YueHaibing
2019-07-26 15:57 ` Stefan Wahren
2019-07-27 1:35 ` [PATCH v3 -next] staging: vc04_services: fix unused-but-set-variable warning YueHaibing
2 siblings, 1 reply; 6+ messages in thread
From: YueHaibing @ 2019-07-26 9:26 UTC (permalink / raw)
To: eric, wahrenst, gregkh, inf.braun, nishkadg.linux
Cc: linux-kernel, devel, linux-rpi-kernel, linux-arm-kernel,
bcm-kernel-feedback-list, YueHaibing
Fix gcc used-but-set-variable warning:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
variable local_entity_uc set but not used [-Wunused-but-set-variable]
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
variable local_uc set but not used [-Wunused-but-set-variable]
Remove the unused variables 'local_entity_uc' and 'local_uc'
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
v2: remove the unused variable
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index cc4383d..b1595b1 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -2824,7 +2824,6 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
VCHIQ_STATUS_T ret = VCHIQ_SUCCESS;
char entity[16];
int *entity_uc;
- int local_uc, local_entity_uc;
if (!arm_state)
goto out;
@@ -2849,8 +2848,8 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
ret = VCHIQ_ERROR;
goto unlock;
}
- local_uc = --arm_state->videocore_use_count;
- local_entity_uc = --(*entity_uc);
+ --arm_state->videocore_use_count;
+ --(*entity_uc);
if (!vchiq_videocore_wanted(state)) {
if (vchiq_platform_use_suspend_timer() &&
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 -next] staging: vc04_services: fix used-but-set-variable warning
2019-07-26 9:26 ` [PATCH v2 " YueHaibing
@ 2019-07-26 15:57 ` Stefan Wahren
2019-07-27 1:33 ` Yuehaibing
0 siblings, 1 reply; 6+ messages in thread
From: Stefan Wahren @ 2019-07-26 15:57 UTC (permalink / raw)
To: YueHaibing, eric, gregkh, inf.braun, nishkadg.linux
Cc: devel, linux-kernel, bcm-kernel-feedback-list, linux-rpi-kernel,
linux-arm-kernel
Hi Yue,
Am 26.07.19 um 11:26 schrieb YueHaibing:
> Fix gcc used-but-set-variable warning:
just a nit. It is call "unused-but-set-variable"
Acked-by: Stefan Wahren <wahrenst@gmx.net>
>
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
> variable local_entity_uc set but not used [-Wunused-but-set-variable]
> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
> variable local_uc set but not used [-Wunused-but-set-variable]
>
> Remove the unused variables 'local_entity_uc' and 'local_uc'
>
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 -next] staging: vc04_services: fix used-but-set-variable warning
2019-07-26 15:57 ` Stefan Wahren
@ 2019-07-27 1:33 ` Yuehaibing
0 siblings, 0 replies; 6+ messages in thread
From: Yuehaibing @ 2019-07-27 1:33 UTC (permalink / raw)
To: Stefan Wahren, eric, gregkh, inf.braun, nishkadg.linux
Cc: devel, linux-kernel, bcm-kernel-feedback-list, linux-rpi-kernel,
linux-arm-kernel
On 2019/7/26 23:57, Stefan Wahren wrote:
> Hi Yue,
>
> Am 26.07.19 um 11:26 schrieb YueHaibing:
>> Fix gcc used-but-set-variable warning:
>
> just a nit. It is call "unused-but-set-variable"
Oh, yes, thanks!
>
> Acked-by: Stefan Wahren <wahrenst@gmx.net>
>
>>
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
>> variable local_entity_uc set but not used [-Wunused-but-set-variable]
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
>> variable local_uc set but not used [-Wunused-but-set-variable]
>>
>> Remove the unused variables 'local_entity_uc' and 'local_uc'
>>
>> Reported-by: Hulk Robot <hulkci@huawei.com>
>> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
>> ---
>
> .
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v3 -next] staging: vc04_services: fix unused-but-set-variable warning
2019-07-25 14:27 [PATCH -next] staging: vc04_services: fix used-but-set-variable warning YueHaibing
2019-07-25 14:49 ` Greg KH
2019-07-26 9:26 ` [PATCH v2 " YueHaibing
@ 2019-07-27 1:35 ` YueHaibing
2 siblings, 0 replies; 6+ messages in thread
From: YueHaibing @ 2019-07-27 1:35 UTC (permalink / raw)
To: eric, wahrenst, gregkh, inf.braun, nishkadg.linux
Cc: linux-kernel, devel, linux-rpi-kernel, linux-arm-kernel,
bcm-kernel-feedback-list, YueHaibing
Fix gcc used-but-set-variable warning:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function vchiq_release_internal:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:16: warning:
variable local_entity_uc set but not used [-Wunused-but-set-variable]
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:2827:6: warning:
variable local_uc set but not used [-Wunused-but-set-variable]
Remove the unused variables 'local_entity_uc' and 'local_uc'
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Stefan Wahren <wahrenst@gmx.net>
---
v3: fix patch title
v2: remove the unused variable
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index cc4383d..b1595b1 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -2824,7 +2824,6 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
VCHIQ_STATUS_T ret = VCHIQ_SUCCESS;
char entity[16];
int *entity_uc;
- int local_uc, local_entity_uc;
if (!arm_state)
goto out;
@@ -2849,8 +2848,8 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
ret = VCHIQ_ERROR;
goto unlock;
}
- local_uc = --arm_state->videocore_use_count;
- local_entity_uc = --(*entity_uc);
+ --arm_state->videocore_use_count;
+ --(*entity_uc);
if (!vchiq_videocore_wanted(state)) {
if (vchiq_platform_use_suspend_timer() &&
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-07-27 1:36 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-25 14:27 [PATCH -next] staging: vc04_services: fix used-but-set-variable warning YueHaibing
2019-07-25 14:49 ` Greg KH
2019-07-26 9:26 ` [PATCH v2 " YueHaibing
2019-07-26 15:57 ` Stefan Wahren
2019-07-27 1:33 ` Yuehaibing
2019-07-27 1:35 ` [PATCH v3 -next] staging: vc04_services: fix unused-but-set-variable warning YueHaibing
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).