On Tue, Oct 08, 2019 at 02:42:54PM +0200, Benjamin Gaignard wrote: > Few for_each macro set variables that are never used later which led > to generate unused-but-set-variable warnings. > Add (void)(foo) inside the macros to remove these warnings > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx> OCD in me would lean towards annotating all of them, unconditionally, and be done. But I guess this works too. Either way: Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > --- > include/drm/drm_atomic.h | 17 ++++++++++++++--- > 1 file changed, 14 insertions(+), 3 deletions(-) > > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h > index 927e1205d7aa..b6c73fd9f55a 100644 > --- a/include/drm/drm_atomic.h > +++ b/include/drm/drm_atomic.h > @@ -693,6 +693,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->connectors[__i].ptr && \ > ((connector) = (__state)->connectors[__i].ptr, \ > + (void)(connector) /* Only to avoid unused-but-set-variable warning */, \ > (old_connector_state) = (__state)->connectors[__i].old_state, \ > (new_connector_state) = (__state)->connectors[__i].new_state, 1)) > > @@ -714,6 +715,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->connectors[__i].ptr && \ > ((connector) = (__state)->connectors[__i].ptr, \ > + (void)(connector) /* Only to avoid unused-but-set-variable warning */, \ > (old_connector_state) = (__state)->connectors[__i].old_state, 1)) > > /** > @@ -734,7 +736,9 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->connectors[__i].ptr && \ > ((connector) = (__state)->connectors[__i].ptr, \ > - (new_connector_state) = (__state)->connectors[__i].new_state, 1)) > + (void)(connector) /* Only to avoid unused-but-set-variable warning */, \ > + (new_connector_state) = (__state)->connectors[__i].new_state, \ > + (void)(new_connector_state) /* Only to avoid unused-but-set-variable warning */, 1)) > > /** > * for_each_oldnew_crtc_in_state - iterate over all CRTCs in an atomic update > @@ -754,7 +758,9 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->crtcs[__i].ptr && \ > ((crtc) = (__state)->crtcs[__i].ptr, \ > + (void)(crtc) /* Only to avoid unused-but-set-variable warning */, \ > (old_crtc_state) = (__state)->crtcs[__i].old_state, \ > + (void)(old_crtc_state) /* Only to avoid unused-but-set-variable warning */, \ > (new_crtc_state) = (__state)->crtcs[__i].new_state, 1)) > > /** > @@ -793,7 +799,9 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->crtcs[__i].ptr && \ > ((crtc) = (__state)->crtcs[__i].ptr, \ > - (new_crtc_state) = (__state)->crtcs[__i].new_state, 1)) > + (void)(crtc) /* Only to avoid unused-but-set-variable warning */, \ > + (new_crtc_state) = (__state)->crtcs[__i].new_state, \ > + (void)(new_crtc_state) /* Only to avoid unused-but-set-variable warning */, 1)) > > /** > * for_each_oldnew_plane_in_state - iterate over all planes in an atomic update > @@ -813,6 +821,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->planes[__i].ptr && \ > ((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)) > > @@ -873,7 +882,9 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); > (__i)++) \ > for_each_if ((__state)->planes[__i].ptr && \ > ((plane) = (__state)->planes[__i].ptr, \ > - (new_plane_state) = (__state)->planes[__i].new_state, 1)) > + (void)(plane) /* Only to avoid unused-but-set-variable warning */, \ > + (new_plane_state) = (__state)->planes[__i].new_state, \ > + (void)(new_plane_state) /* Only to avoid unused-but-set-variable warning */, 1)) > > /** > * for_each_oldnew_private_obj_in_state - iterate over all private objects in an atomic update > -- > 2.15.0 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
