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Thu, 7 Apr 2022 09:10:42 +0000 From: Liu Ying To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v10 4/6] drm/atomic: Avoid unused-but-set-variable warning on for_each_old_plane_in_state Date: Thu, 7 Apr 2022 17:11:54 +0800 Message-Id: <20220407091156.1211923-5-victor.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220407091156.1211923-1-victor.liu@nxp.com> References: <20220407091156.1211923-1-victor.liu@nxp.com> X-ClientProxiedBy: SI2PR02CA0021.apcprd02.prod.outlook.com (2603:1096:4:195::10) To AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 963bcb5e-8334-4080-74a3-08da18767e04 X-MS-TrafficTypeDiagnostic: PA4PR04MB9344:EE_ X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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The precedent has already been set by other macros in the same file. Acked-by: Daniel Vetter Signed-off-by: Liu Ying --- v9->v10: * No change. v8->v9: * No change. v7->v8: * No change. v6->v7: * No change. v5->v6: * Fix commit message typo - s/Artifically/Artificially/ 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 1701c2128a5c..50377c80a039 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -928,7 +928,10 @@ 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