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[2/3] drm/msm/mdp5: mark runtime_pm functions as __maybe_unused

Message ID 20170803115130.3448850-2-arnd@arndb.de (mailing list archive)
State New, archived
Headers show

Commit Message

Arnd Bergmann Aug. 3, 2017, 11:50 a.m. UTC
When CONFIG_PM is disabled, we get harmless warnings about unused
functions:

drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1025:12: error: 'mdp5_runtime_resume' defined but not used [-Werror=unused-function]
 static int mdp5_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1015:12: error: 'mdp5_runtime_suspend' defined but not used [-Werror=unused-function]
 static int mdp5_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~

This marks both functions as __maybe_unused so the compiler
can drop them silently.

Fixes: d68fe15b1878 ("drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Archit Taneja Aug. 4, 2017, 10:37 a.m. UTC | #1
On 08/03/2017 05:20 PM, Arnd Bergmann wrote:
> When CONFIG_PM is disabled, we get harmless warnings about unused
> functions:
> 
> drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1025:12: error: 'mdp5_runtime_resume' defined but not used [-Werror=unused-function]
>   static int mdp5_runtime_resume(struct device *dev)
>              ^~~~~~~~~~~~~~~~~~~
> drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1015:12: error: 'mdp5_runtime_suspend' defined but not used [-Werror=unused-function]
>   static int mdp5_runtime_suspend(struct device *dev)
>              ^~~~~~~~~~~~~~~~~~~~
> 
> This marks both functions as __maybe_unused so the compiler
> can drop them silently.

Thanks for the fix. Since the commit is still in Rob's -next branch,
I'll post a new version which fixes this.

Archit

> 
> Fixes: d68fe15b1878 ("drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>   drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
> index 9f9d95f7c80f..f7c0698fec40 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
> @@ -1012,7 +1012,7 @@ static int mdp5_dev_remove(struct platform_device *pdev)
>   	return 0;
>   }
>   
> -static int mdp5_runtime_suspend(struct device *dev)
> +static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
>   {
>   	struct platform_device *pdev = to_platform_device(dev);
>   	struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
> @@ -1022,7 +1022,7 @@ static int mdp5_runtime_suspend(struct device *dev)
>   	return mdp5_disable(mdp5_kms);
>   }
>   
> -static int mdp5_runtime_resume(struct device *dev)
> +static __maybe_unused int mdp5_runtime_resume(struct device *dev)
>   {
>   	struct platform_device *pdev = to_platform_device(dev);
>   	struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 9f9d95f7c80f..f7c0698fec40 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -1012,7 +1012,7 @@  static int mdp5_dev_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int mdp5_runtime_suspend(struct device *dev)
+static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
@@ -1022,7 +1022,7 @@  static int mdp5_runtime_suspend(struct device *dev)
 	return mdp5_disable(mdp5_kms);
 }
 
-static int mdp5_runtime_resume(struct device *dev)
+static __maybe_unused int mdp5_runtime_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);