From: Liu Ying <victor.liu@nxp.com>
To: linux-arm-kernel@lists.infradead.org,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: p.zabel@pengutronix.de, airlied@linux.ie, daniel@ffwll.ch,
shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
robh+dt@kernel.org, maarten.lankhorst@linux.intel.com,
mripard@kernel.org, tzimmermann@suse.de,
laurentiu.palcu@oss.nxp.com
Subject: [PATCH v2 4/6] drm/atomic: Avoid unused-but-set-variable warning on for_each_old_plane_in_state
Date: Thu, 3 Dec 2020 11:06:29 +0800 [thread overview]
Message-ID: <1606964791-24927-5-git-send-email-victor.liu@nxp.com> (raw)
In-Reply-To: <1606964791-24927-1-git-send-email-victor.liu@nxp.com>
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.
Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
v1->v2:
* No change.
include/drm/drm_atomic.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 54e051a..9da1e35a3 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -888,7 +888,9 @@ 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, \
- (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
next prev parent reply other threads:[~2020-12-03 3:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 3:06 [PATCH v2 0/6] drm/imx: Introduce i.MX8qm/qxp DPU DRM Liu Ying
2020-12-03 3:06 ` [PATCH v2 1/6] dt-bindings: display: imx: Add i.MX8qxp/qm DPU binding Liu Ying
2020-12-03 3:06 ` [PATCH v2 2/6] dt-bindings: display: imx: Add i.MX8qxp/qm PRG binding Liu Ying
2020-12-03 3:06 ` [PATCH v2 3/6] dt-bindings: display: imx: Add i.MX8qxp/qm DPR channel binding Liu Ying
2020-12-03 3:06 ` Liu Ying [this message]
2020-12-03 3:06 ` [PATCH v2 5/6] drm/imx: Introduce i.MX8qm/qxp DPU DRM Liu Ying
2020-12-03 7:41 ` kernel test robot
2020-12-03 3:06 ` [PATCH v2 6/6] MAINTAINERS: add maintainer for i.MX8qxp DPU DRM driver Liu Ying
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