[Intel-gfx] [drm-intel:for-linux-next-fixes 3/4] DockBook: drivers/gpu/drm/drm_probe_helper.c:107: warning: Excess function parameter 'dev' description in 'DRM_OUTPUT_POLL_PERIOD'
Egbert Eich
eich at suse.com
Wed Sep 30 07:02:11 PDT 2015
Jani Nikula writes:
> On Wed, 30 Sep 2015, Daniel Vetter <daniel at ffwll.ch> wrote:
> > On Wed, Sep 30, 2015 at 05:09:04PM +0800, kbuild test robot wrote:
> >> tree: git://anongit.freedesktop.org/drm-intel for-linux-next-fixes
> >> head: ad96c5f13442b17fafccc30f81efae2f08351f99
> >> commit: 10d3a5618b3aba24d6388ccdff2d0182b72a6e8d [3/4] drm: Add a non-locking version of drm_kms_helper_poll_enable(), v2
> >> reproduce: make htmldocs
> >>
> >> All warnings (new ones prefixed by >>):
>
> Cc: Jonathan and Danilo, and including the kernel-doc in question for
> reference:
>
> /**
> * drm_kms_helper_poll_enable_locked - re-enable output polling.
> * @dev: drm_device
> *
> * This function re-enables the output polling work without
> * locking the mode_config mutex.
> *
> * This is like drm_kms_helper_poll_enable() however it is to be
> * called from a context where the mode_config mutex is locked
> * already.
> */
> #define DRM_OUTPUT_POLL_PERIOD (10*HZ)
> void drm_kms_helper_poll_enable_locked(struct drm_device *dev)
> {
> ...
>
> >> >> drivers/gpu/drm/drm_probe_helper.c:107: warning: Excess function parameter 'dev' description in 'DRM_OUTPUT_POLL_PERIOD'
> >> >> drivers/gpu/drm/drm_probe_helper.c:107: warning: Excess function parameter 'dev' description in 'DRM_OUTPUT_POLL_PERIOD'
> >
> > I think this should be fixed by moving the DRM_OUTPUT_POLL_PERIOD #define
> > before the kerneldoc for drm_kms_helper_poll_enable_locked. Jani, can you
> > please do that fixup and check that make htmldocs is happy with it?
>
> Can do.
>
> However, having such #defines right above the only function that uses
> them is not uncommon. Since there is no documentation for
> DRM_OUTPUT_POLL_PERIOD, and the documentation for the function includes
> the function name, I am wondering if kernel-doc could be made smarter
> about this.
>
It is actually used twice in this file by two functions not immediately adjacent.
Why not move it to the beginning of the file?
Cheers,
Egbert.
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