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Date: Fri, 18 Dec 2020 11:23:51 +0800 From: Liu Ying <victor.liu@....com> To: linux-arm-kernel@...ts.infradead.org, dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org Cc: p.zabel@...gutronix.de, airlied@...ux.ie, daniel@...ll.ch, shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com, linux-imx@....com, robh+dt@...nel.org, maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, laurentiu.palcu@....nxp.com, guido.gunther@...i.sm Subject: [PATCH v5 4/6] drm/atomic: Avoid unused-but-set-variable warning on for_each_old_plane_in_state Artifically use 'plane' and 'old_plane_state' to avoid 'not used' warning. The precedent has already been set by other macros in the same file. Acked-by: Daniel Vetter <daniel.vetter@...ll.ch> Signed-off-by: Liu Ying <victor.liu@....com> --- v4->v5: * No change. v3->v4: * Add Daniel's A-b tag. v2->v3: * Add a missing blank line. v1->v2: * No change. include/drm/drm_atomic.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index ce7023e..6ade7a1 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -908,7 +908,10 @@ 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, \ - (old_plane_state) = (__state)->planes[__i].old_state, 1)) + (void)(plane) /* Only to avoid unused-but-set-variable warning */, \ + (old_plane_state) = (__state)->planes[__i].old_state, \ + (void)(old_plane_state) /* Only to avoid unused-but-set-variable warning */, 1)) + /** * for_each_new_plane_in_state - iterate over all planes in an atomic update * @__state: &struct drm_atomic_state pointer -- 2.7.4
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