2021-01-03 15:31:56

by Arnd Bergmann

[permalink] [raw]
Subject: [PATCH] drm/amd/display: Fix unused variable warning

From: Arnd Bergmann <[email protected]>

Some of the newly added code is hidden inside of #ifdef
blocks, but one variable is unused when debugfs is disabled:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8370:8: error: unused variable 'configure_crc' [-Werror,-Wunused-variable]

Change the #ifdef to an if(IS_ENABLED()) check to fix the warning
and avoid adding more #ifdefs.

Fixes: c920888c604d ("drm/amd/display: Expose new CRC window property")
Signed-off-by: Arnd Bergmann <[email protected]>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | 2 +-
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 42b0fdb72e7b..5071b55ad0f6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8379,8 +8379,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
manage_dm_interrupts(adev, acrtc, true);
}
-#ifdef CONFIG_DEBUG_FS
- if (new_crtc_state->active &&
+ if (IS_ENABLED(CONFIG_DEBUG_FS) && new_crtc_state->active &&
amdgpu_dm_is_valid_crc_source(dm_new_crtc_state->crc_src)) {
/**
* Frontend may have changed so reapply the CRC capture
@@ -8401,7 +8400,6 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
amdgpu_dm_crtc_configure_crc_source(
crtc, dm_new_crtc_state, dm_new_crtc_state->crc_src);
}
-#endif
}

for_each_new_crtc_in_state(state, crtc, new_crtc_state, j)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
index 0235bfb246e5..eba2f1d35d07 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
@@ -46,13 +46,13 @@ static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source
}

/* amdgpu_dm_crc.c */
-#ifdef CONFIG_DEBUG_FS
bool amdgpu_dm_crc_window_is_default(struct dm_crtc_state *dm_crtc_state);
bool amdgpu_dm_crc_window_changed(struct dm_crtc_state *dm_new_crtc_state,
struct dm_crtc_state *dm_old_crtc_state);
int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
struct dm_crtc_state *dm_crtc_state,
enum amdgpu_dm_pipe_crc_source source);
+#ifdef CONFIG_DEBUG_FS
int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name);
int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc,
const char *src_name,
--
2.29.2


2021-01-04 13:02:42

by Lin, Wayne

[permalink] [raw]
Subject: RE: [PATCH] drm/amd/display: Fix unused variable warning

[AMD Official Use Only - Internal Distribution Only]

Thanks Arnd.

Reviewed-by: Wayne Lin <[email protected]>

-----Original Message-----
From: Arnd Bergmann <[email protected]>
Sent: Sunday, January 3, 2021 10:03 PM
To: Wentland, Harry <[email protected]>; Li, Sun peng (Leo) <[email protected]>; Deucher, Alexander <[email protected]>; Koenig, Christian <[email protected]>; David Airlie <[email protected]>; Daniel Vetter <[email protected]>; R, Bindu <[email protected]>; Lin, Wayne <[email protected]>
Cc: Arnd Bergmann <[email protected]>; Kazlauskas, Nicholas <[email protected]>; Siqueira, Rodrigo <[email protected]>; Pillai, Aurabindo <[email protected]>; Wang, Chao-kai (Stylon) <[email protected]>; Simon Ser <[email protected]>; Brol, Eryk <[email protected]>; Bas Nieuwenhuizen <[email protected]>; Lakha, Bhawanpreet <[email protected]>; [email protected]; [email protected]
Subject: [PATCH] drm/amd/display: Fix unused variable warning

From: Arnd Bergmann <[email protected]>

Some of the newly added code is hidden inside of #ifdef blocks, but one variable is unused when debugfs is disabled:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8370:8: error: unused variable 'configure_crc' [-Werror,-Wunused-variable]

Change the #ifdef to an if(IS_ENABLED()) check to fix the warning and avoid adding more #ifdefs.

Fixes: c920888c604d ("drm/amd/display: Expose new CRC window property")
Signed-off-by: Arnd Bergmann <[email protected]>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | 2 +-
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 42b0fdb72e7b..5071b55ad0f6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8379,8 +8379,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
manage_dm_interrupts(adev, acrtc, true);
}
-#ifdef CONFIG_DEBUG_FS
-if (new_crtc_state->active &&
+if (IS_ENABLED(CONFIG_DEBUG_FS) && new_crtc_state->active &&
amdgpu_dm_is_valid_crc_source(dm_new_crtc_state->crc_src)) {
/**
* Frontend may have changed so reapply the CRC capture @@ -8401,7 +8400,6 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
amdgpu_dm_crtc_configure_crc_source(
crtc, dm_new_crtc_state, dm_new_crtc_state->crc_src);
}
-#endif
}

for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
index 0235bfb246e5..eba2f1d35d07 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
@@ -46,13 +46,13 @@ static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source }

/* amdgpu_dm_crc.c */
-#ifdef CONFIG_DEBUG_FS
bool amdgpu_dm_crc_window_is_default(struct dm_crtc_state *dm_crtc_state); bool amdgpu_dm_crc_window_changed(struct dm_crtc_state *dm_new_crtc_state,
struct dm_crtc_state *dm_old_crtc_state); int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
struct dm_crtc_state *dm_crtc_state,
enum amdgpu_dm_pipe_crc_source source);
+#ifdef CONFIG_DEBUG_FS
int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name); int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc,
const char *src_name,
--
2.29.2

2021-01-04 17:26:34

by Alex Deucher

[permalink] [raw]
Subject: Re: [PATCH] drm/amd/display: Fix unused variable warning

Applied. Thanks!

Alex

On Mon, Jan 4, 2021 at 7:58 AM Lin, Wayne <[email protected]> wrote:
>
> [AMD Official Use Only - Internal Distribution Only]
>
> Thanks Arnd.
>
> Reviewed-by: Wayne Lin <[email protected]>
>
> -----Original Message-----
> From: Arnd Bergmann <[email protected]>
> Sent: Sunday, January 3, 2021 10:03 PM
> To: Wentland, Harry <[email protected]>; Li, Sun peng (Leo) <[email protected]>; Deucher, Alexander <[email protected]>; Koenig, Christian <[email protected]>; David Airlie <[email protected]>; Daniel Vetter <[email protected]>; R, Bindu <[email protected]>; Lin, Wayne <[email protected]>
> Cc: Arnd Bergmann <[email protected]>; Kazlauskas, Nicholas <[email protected]>; Siqueira, Rodrigo <[email protected]>; Pillai, Aurabindo <[email protected]>; Wang, Chao-kai (Stylon) <[email protected]>; Simon Ser <[email protected]>; Brol, Eryk <[email protected]>; Bas Nieuwenhuizen <[email protected]>; Lakha, Bhawanpreet <[email protected]>; [email protected]; [email protected]
> Subject: [PATCH] drm/amd/display: Fix unused variable warning
>
> From: Arnd Bergmann <[email protected]>
>
> Some of the newly added code is hidden inside of #ifdef blocks, but one variable is unused when debugfs is disabled:
>
> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8370:8: error: unused variable 'configure_crc' [-Werror,-Wunused-variable]
>
> Change the #ifdef to an if(IS_ENABLED()) check to fix the warning and avoid adding more #ifdefs.
>
> Fixes: c920888c604d ("drm/amd/display: Expose new CRC window property")
> Signed-off-by: Arnd Bergmann <[email protected]>
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | 2 +-
> 2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 42b0fdb72e7b..5071b55ad0f6 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8379,8 +8379,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
> acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
> manage_dm_interrupts(adev, acrtc, true);
> }
> -#ifdef CONFIG_DEBUG_FS
> -if (new_crtc_state->active &&
> +if (IS_ENABLED(CONFIG_DEBUG_FS) && new_crtc_state->active &&
> amdgpu_dm_is_valid_crc_source(dm_new_crtc_state->crc_src)) {
> /**
> * Frontend may have changed so reapply the CRC capture @@ -8401,7 +8400,6 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
> amdgpu_dm_crtc_configure_crc_source(
> crtc, dm_new_crtc_state, dm_new_crtc_state->crc_src);
> }
> -#endif
> }
>
> for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
> index 0235bfb246e5..eba2f1d35d07 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
> @@ -46,13 +46,13 @@ static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source }
>
> /* amdgpu_dm_crc.c */
> -#ifdef CONFIG_DEBUG_FS
> bool amdgpu_dm_crc_window_is_default(struct dm_crtc_state *dm_crtc_state); bool amdgpu_dm_crc_window_changed(struct dm_crtc_state *dm_new_crtc_state,
> struct dm_crtc_state *dm_old_crtc_state); int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
> struct dm_crtc_state *dm_crtc_state,
> enum amdgpu_dm_pipe_crc_source source);
> +#ifdef CONFIG_DEBUG_FS
> int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name); int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc,
> const char *src_name,
> --
> 2.29.2
>
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