On Sun, 30 Jun 2019, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> Hi Jani.
>
> On Thu, Jun 27, 2019 at 02:01:03PM +0300, Jani Nikula wrote:
>> Fix build warning if drm_panel.h is built with CONFIG_OF=n or
>> CONFIG_DRM_PANEL=n and included without the prerequisite err.h:
>>
>> ./include/drm/drm_panel.h: In function ‘of_drm_find_panel’:
>> ./include/drm/drm_panel.h:203:9: error: implicit declaration of function ‘ERR_PTR’ [-Werror=implicit-function-declaration]
>> return ERR_PTR(-ENODEV);
>> ^~~~~~~
>> ./include/drm/drm_panel.h:203:9: error: returning ‘int’ from a function with return type ‘struct drm_panel *’ makes pointer from integer without a cast [-Werror=int-conversion]
>> return ERR_PTR(-ENODEV);
>> ^~~~~~~~~~~~~~~~
>>
>> Fixes: 5fa8e4a22182 ("drm/panel: Make of_drm_find_panel() return an ERR_PTR() instead of NULL")
>> Cc: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
>> Cc: Thierry Reding <treding@xxxxxxxxxx>
>> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
>
> When we start to deploy headers-test I expect us to find many more of
> this class of issues.
> But lets get them fixed so we do not see sporadic build errors due
> to missing dependencies in the header files.
>
> I assume you will commit the fix.
Thanks for picking up the ball I dropped, and committing this!
BR,
Jani.
--
Jani Nikula, Intel Open Source Graphics Center
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