[PATCH] drm/amd/pm: remove unused num_of_active_display variable

[PATCH] drm/amd/pm: remove unused num_of_active_display variable

[Tom Rix]

clang with W=1 reports
drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1700:6: error: variable
  'num_of_active_display' set but not used [-Werror,-Wunused-but-set-variable]
        int num_of_active_display = 0;
            ^
This variable is not used so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index b5d64749990e..f93f7a9ed631 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1696,8 +1696,6 @@ static int smu_display_configuration_change(void *handle,
 					    const struct amd_pp_display_configuration *display_config)
 {
 	struct smu_context *smu = handle;
-	int index = 0;
-	int num_of_active_display = 0;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
 		return -EOPNOTSUPP;
@@ -1708,11 +1706,6 @@ static int smu_display_configuration_change(void *handle,
 	smu_set_min_dcef_deep_sleep(smu,
 				    display_config->min_dcef_deep_sleep_set_clk / 100);
 
-	for (index = 0; index < display_config->num_path_including_non_display; index++) {
-		if (display_config->displays[index].controller_id != 0)
-			num_of_active_display++;
-	}
-
 	return 0;
 }
 
-- 
2.27.0

Re: [PATCH] drm/amd/pm: remove unused num_of_active_display variable

[Nick Desaulniers]

On Fri, Mar 31, 2023 at 9:40 AM Tom Rix <trix@redhat.com> wrote:
>
> clang with W=1 reports
> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1700:6: error: variable
>   'num_of_active_display' set but not used [-Werror,-Wunused-but-set-variable]
>         int num_of_active_display = 0;
>             ^
> This variable is not used so remove it.
>
> Signed-off-by: Tom Rix <trix@redhat.com>

Thanks for the patch!
Fixes: commit 75145aab7a0d ("drm/amdgpu/swsmu: clean up a bunch of
stale interfaces")
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

> ---
>  drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 7 -------
>  1 file changed, 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> index b5d64749990e..f93f7a9ed631 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> @@ -1696,8 +1696,6 @@ static int smu_display_configuration_change(void *handle,
>                                             const struct amd_pp_display_configuration *display_config)
>  {
>         struct smu_context *smu = handle;
> -       int index = 0;
> -       int num_of_active_display = 0;
>
>         if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
>                 return -EOPNOTSUPP;
> @@ -1708,11 +1706,6 @@ static int smu_display_configuration_change(void *handle,
>         smu_set_min_dcef_deep_sleep(smu,
>                                     display_config->min_dcef_deep_sleep_set_clk / 100);
>
> -       for (index = 0; index < display_config->num_path_including_non_display; index++) {
> -               if (display_config->displays[index].controller_id != 0)
> -                       num_of_active_display++;
> -       }
> -
>         return 0;
>  }
>
> --
> 2.27.0
>


-- 
Thanks,
~Nick Desaulniers

RE: [PATCH] drm/amd/pm: remove unused num_of_active_display variable

[Quan, Evan]

[AMD Official Use Only - General]

Reviewed-by: Evan Quan <evan.quan@amd.com>

> -----Original Message-----
> From: Tom Rix <trix@redhat.com>
> Sent: Saturday, April 1, 2023 12:41 AM
> To: Quan, Evan <Evan.Quan@amd.com>; Deucher, Alexander
> <Alexander.Deucher@amd.com>; Koenig, Christian
> <Christian.Koenig@amd.com>; Pan, Xinhui <Xinhui.Pan@amd.com>;
> airlied@gmail.com; daniel@ffwll.ch; nathan@kernel.org;
> ndesaulniers@google.com; Zhang, Hawking <Hawking.Zhang@amd.com>;
> Feng, Kenneth <Kenneth.Feng@amd.com>; Lazar, Lijo
> <Lijo.Lazar@amd.com>; Wang, Yang(Kevin) <KevinYang.Wang@amd.com>;
> Huang, Tim <Tim.Huang@amd.com>; andrealmeid@igalia.com; Liu, Kun
> <Kun.Liu2@amd.com>; Limonciello, Mario <Mario.Limonciello@amd.com>
> Cc: amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; linux-
> kernel@vger.kernel.org; llvm@lists.linux.dev; Tom Rix <trix@redhat.com>
> Subject: [PATCH] drm/amd/pm: remove unused num_of_active_display
> variable
> 
> clang with W=1 reports
> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1700:6: error:
> variable
>   'num_of_active_display' set but not used [-Werror,-Wunused-but-set-
> variable]
>         int num_of_active_display = 0;
>             ^
> This variable is not used so remove it.
> 
> Signed-off-by: Tom Rix <trix@redhat.com>
> ---
>  drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> index b5d64749990e..f93f7a9ed631 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> @@ -1696,8 +1696,6 @@ static int smu_display_configuration_change(void
> *handle,
>  					    const struct
> amd_pp_display_configuration *display_config)  {
>  	struct smu_context *smu = handle;
> -	int index = 0;
> -	int num_of_active_display = 0;
> 
>  	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
>  		return -EOPNOTSUPP;
> @@ -1708,11 +1706,6 @@ static int smu_display_configuration_change(void
> *handle,
>  	smu_set_min_dcef_deep_sleep(smu,
>  				    display_config-
> >min_dcef_deep_sleep_set_clk / 100);
> 
> -	for (index = 0; index < display_config-
> >num_path_including_non_display; index++) {
> -		if (display_config->displays[index].controller_id != 0)
> -			num_of_active_display++;
> -	}
> -
>  	return 0;
>  }
> 
> --
> 2.27.0

Re: [PATCH] drm/amd/pm: remove unused num_of_active_display variable

[Alex Deucher]

Applied.  Thanks!

On Sun, Apr 9, 2023 at 8:48 PM Quan, Evan <Evan.Quan@amd.com> wrote:
>
> [AMD Official Use Only - General]
>
> Reviewed-by: Evan Quan <evan.quan@amd.com>
>
> > -----Original Message-----
> > From: Tom Rix <trix@redhat.com>
> > Sent: Saturday, April 1, 2023 12:41 AM
> > To: Quan, Evan <Evan.Quan@amd.com>; Deucher, Alexander
> > <Alexander.Deucher@amd.com>; Koenig, Christian
> > <Christian.Koenig@amd.com>; Pan, Xinhui <Xinhui.Pan@amd.com>;
> > airlied@gmail.com; daniel@ffwll.ch; nathan@kernel.org;
> > ndesaulniers@google.com; Zhang, Hawking <Hawking.Zhang@amd.com>;
> > Feng, Kenneth <Kenneth.Feng@amd.com>; Lazar, Lijo
> > <Lijo.Lazar@amd.com>; Wang, Yang(Kevin) <KevinYang.Wang@amd.com>;
> > Huang, Tim <Tim.Huang@amd.com>; andrealmeid@igalia.com; Liu, Kun
> > <Kun.Liu2@amd.com>; Limonciello, Mario <Mario.Limonciello@amd.com>
> > Cc: amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; linux-
> > kernel@vger.kernel.org; llvm@lists.linux.dev; Tom Rix <trix@redhat.com>
> > Subject: [PATCH] drm/amd/pm: remove unused num_of_active_display
> > variable
> >
> > clang with W=1 reports
> > drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1700:6: error:
> > variable
> >   'num_of_active_display' set but not used [-Werror,-Wunused-but-set-
> > variable]
> >         int num_of_active_display = 0;
> >             ^
> > This variable is not used so remove it.
> >
> > Signed-off-by: Tom Rix <trix@redhat.com>
> > ---
> >  drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 7 -------
> >  1 file changed, 7 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> > b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> > index b5d64749990e..f93f7a9ed631 100644
> > --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> > +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
> > @@ -1696,8 +1696,6 @@ static int smu_display_configuration_change(void
> > *handle,
> >                                           const struct
> > amd_pp_display_configuration *display_config)  {
> >       struct smu_context *smu = handle;
> > -     int index = 0;
> > -     int num_of_active_display = 0;
> >
> >       if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
> >               return -EOPNOTSUPP;
> > @@ -1708,11 +1706,6 @@ static int smu_display_configuration_change(void
> > *handle,
> >       smu_set_min_dcef_deep_sleep(smu,
> >                                   display_config-
> > >min_dcef_deep_sleep_set_clk / 100);
> >
> > -     for (index = 0; index < display_config-
> > >num_path_including_non_display; index++) {
> > -             if (display_config->displays[index].controller_id != 0)
> > -                     num_of_active_display++;
> > -     }
> > -
> >       return 0;
> >  }
> >
> > --
> > 2.27.0