On Fri, Mar 19, 2021 at 08:24:13AM +0000, Lee Jones wrote: > In the macro for_each_oldnew_plane_in_state() 'new_plane_state' is provided > as a container for state->planes[i].new_state, but is not utilised in > some use-cases, so we fake-use it instead. > > Fixes the following W=1 kernel build warning(s): > > drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function > ‘amdgpu_dm_commit_cursors’: > drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7649:44: > warning: variable ‘new_plane_state’ set but not used > [-Wunused-but-set-variable] > > Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com> > Cc: Maxime Ripard <mrip...@kernel.org> > Cc: Thomas Zimmermann <tzimmerm...@suse.de> > Cc: David Airlie <airl...@linux.ie> > Cc: Daniel Vetter <dan...@ffwll.ch> > Cc: Rob Clark <robdcl...@gmail.com> > Cc: dri-devel@lists.freedesktop.org > Signed-off-by: Lee Jones <lee.jo...@linaro.org> > --- > include/drm/drm_atomic.h | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h > index ac5a28eff2c86..259e6970dc836 100644 > --- a/include/drm/drm_atomic.h > +++ b/include/drm/drm_atomic.h > @@ -871,7 +871,8 @@ void drm_state_dump(struct drm_device *dev, struct > drm_printer *p); > ((plane) = (__state)->planes[__i].ptr, \ > (void)(plane) /* Only to avoid > unused-but-set-variable warning */, \ > (old_plane_state) = > (__state)->planes[__i].old_state,\ > - (new_plane_state) = > (__state)->planes[__i].new_state, 1)) > + (new_plane_state) = > (__state)->planes[__i].new_state, \ > + (void)(new_plane_state) /* Only to avoid > unused-but-set-variable warning */, 1))
In this case you can just switch the code to use for_each_old_plane_in_state() instead. > > /** > * for_each_oldnew_plane_in_state_reverse - iterate over all planes in an > atomic > -- > 2.27.0 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Ville Syrjälä Intel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
