2018-12-08 14:55:15

by Yue Haibing

[permalink] [raw]
Subject: [PATCH -next] drm/amdgpu: remove set but not used variable 'grbm_soft_reset'

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

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function 'gfx_v8_0_pre_soft_reset':
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:4950:27: warning:
variable 'srbm_soft_reset' set but not used [-Wunused-but-set-variable]

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function 'gfx_v8_0_post_soft_reset':
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:5054:27: warning:
variable 'srbm_soft_reset' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit d31a501ead7f ("drm/amdgpu: add
pre_soft_reset ip func") and e4ae0fc33631 ("drm/amdgpu: implement
gfx8 post_soft_reset")

Signed-off-by: YueHaibing <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1454fc3..8c1ba79 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4947,14 +4947,13 @@ static bool gfx_v8_0_check_soft_reset(void *handle)
static int gfx_v8_0_pre_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
+ u32 grbm_soft_reset = 0;

if ((!adev->gfx.grbm_soft_reset) &&
(!adev->gfx.srbm_soft_reset))
return 0;

grbm_soft_reset = adev->gfx.grbm_soft_reset;
- srbm_soft_reset = adev->gfx.srbm_soft_reset;

/* stop the rlc */
adev->gfx.rlc.funcs->stop(adev);
@@ -5051,14 +5050,13 @@ static int gfx_v8_0_soft_reset(void *handle)
static int gfx_v8_0_post_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
+ u32 grbm_soft_reset = 0;

if ((!adev->gfx.grbm_soft_reset) &&
(!adev->gfx.srbm_soft_reset))
return 0;

grbm_soft_reset = adev->gfx.grbm_soft_reset;
- srbm_soft_reset = adev->gfx.srbm_soft_reset;

if (REG_GET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_CP) ||
REG_GET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_CPF) ||





2018-12-10 02:50:38

by Zhou, David(ChunMing)

[permalink] [raw]
Subject: RE: [PATCH -next] drm/amdgpu: remove set but not used variable 'grbm_soft_reset'



> -----Original Message-----
> From: YueHaibing <[email protected]>
> Sent: Saturday, December 08, 2018 11:01 PM
> To: Deucher, Alexander <[email protected]>; Koenig, Christian
> <[email protected]>; Zhou, David(ChunMing)
> <[email protected]>; [email protected]; Liu, Leo <[email protected]>;
> Gao, Likun <[email protected]>; Panariti, David
> <[email protected]>; S, Shirish <[email protected]>; Zhu, Rex
> <[email protected]>; Grodzovsky, Andrey <[email protected]>
> Cc: YueHaibing <[email protected]>; [email protected];
> [email protected]; [email protected]; kernel-
> [email protected]
> Subject: [PATCH -next] drm/amdgpu: remove set but not used variable
> 'grbm_soft_reset'
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function
> 'gfx_v8_0_pre_soft_reset':
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:4950:27: warning:
> variable 'srbm_soft_reset' set but not used [-Wunused-but-set-variable]
>
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function
> 'gfx_v8_0_post_soft_reset':
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:5054:27: warning:
> variable 'srbm_soft_reset' set but not used [-Wunused-but-set-variable]
>
> It never used since introduction in commit d31a501ead7f ("drm/amdgpu: add
> pre_soft_reset ip func") and e4ae0fc33631 ("drm/amdgpu: implement
> gfx8 post_soft_reset")
>
> Signed-off-by: YueHaibing <[email protected]>

Reviewed-by: Chunming Zhou <[email protected]>

> ---
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 1454fc3..8c1ba79 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -4947,14 +4947,13 @@ static bool gfx_v8_0_check_soft_reset(void
> *handle) static int gfx_v8_0_pre_soft_reset(void *handle) {
> struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> - u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
> + u32 grbm_soft_reset = 0;
>
> if ((!adev->gfx.grbm_soft_reset) &&
> (!adev->gfx.srbm_soft_reset))
> return 0;
>
> grbm_soft_reset = adev->gfx.grbm_soft_reset;
> - srbm_soft_reset = adev->gfx.srbm_soft_reset;
>
> /* stop the rlc */
> adev->gfx.rlc.funcs->stop(adev);
> @@ -5051,14 +5050,13 @@ static int gfx_v8_0_soft_reset(void *handle)
> static int gfx_v8_0_post_soft_reset(void *handle) {
> struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> - u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
> + u32 grbm_soft_reset = 0;
>
> if ((!adev->gfx.grbm_soft_reset) &&
> (!adev->gfx.srbm_soft_reset))
> return 0;
>
> grbm_soft_reset = adev->gfx.grbm_soft_reset;
> - srbm_soft_reset = adev->gfx.srbm_soft_reset;
>
> if (REG_GET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET,
> SOFT_RESET_CP) ||
> REG_GET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET,
> SOFT_RESET_CPF) ||
>
>