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Tue, 29 Dec 2020 16:57:52 +0000 From: Rodrigo Siqueira To: LKML , dri-devel , amd-gfx@lists.freedesktop.org Cc: Wesley Chalmers , Alex Deucher , Alex Deucher , Harry Wentland , Nicholas Kazlauskas , Hersen Wu , Dave Airlie , Josip Pavic , Bindu Ramamurthy , Martin Leung Subject: [PATCH] drm/amd/display: Initialize stack variable Date: Tue, 29 Dec 2020 11:57:40 -0500 Message-Id: <20201229165740.519759-1-Rodrigo.Siqueira@amd.com> X-Mailer: git-send-email 2.30.0.rc2 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [2607:fea8:56e0:6d60:f639:9ff:fe01:4714] X-ClientProxiedBy: YTXPR0101CA0024.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::37) To CH2PR12MB3781.namprd12.prod.outlook.com (2603:10b6:610:27::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from atma1.hitronhub.home (2607:fea8:56e0:6d60:f639:9ff:fe01:4714) by YTXPR0101CA0024.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3721.19 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?DmQPuEigKDZ4wa0HzXnR2+qPykRvI8+7Afeo6yOdaRARZEmyTO8op0nWF/vc?= =?us-ascii?Q?ow9UQ7Oo+Bq3rsCThvKQG99lu5/4E62CcagOiRI/AGCIUHVIZz+sNzIPhntj?= =?us-ascii?Q?wjbNuIsexdDxmrJhM6IMlR/qE7jfSDwxgo3GnhHKFwiFxDJhiZ+PePKxioIH?= =?us-ascii?Q?XSpmqxU9pwdzkV+odJ7fVYGFuwTPJy8vwuhhvfkWCcVCXcWcO1C00itwLLwV?= =?us-ascii?Q?RRFJDP60qAvqoZM3s8N7jdTbY7742QOOUUdTou7Vsoc4U4xnLGce5eNYNuNh?= =?us-ascii?Q?o1GAip1X1ODDNzYK8wGZu++zgnQBhfO5h2hSqkXva2BcdfHOCpZatXIU/eB6?= =?us-ascii?Q?+SBKM/a5Eufgivir+/gI7URczvvRGHowxjKTtYCneeCs9AT4Cr8Dd+MGS69p?= =?us-ascii?Q?rHxR+hC8pgG7Ehcsym3KdgtYc5cQpNGVlm2YmCi7AnjQeITNG9Uoaj78Q5YQ?= =?us-ascii?Q?xoZh0U5X6fbS6/MmEzi1BF2l/EJYbnjbttYWO7VQlEkYE/01V4Y/BZXhnnQ1?= =?us-ascii?Q?lYVe7j6AfOmW752NEgi/7zXKJ8wzbUX1CoEJqi52Iu1t4fMffpobd5R9B3GD?= =?us-ascii?Q?eM/50khyKQUqwlWctI2QEJsGHURoXMDLkQnt4UJStJ4qv54GNVZrfcIttpNr?= =?us-ascii?Q?Vxm6TJu+wb4UgxtM5xSWHYVPuqDJbpBfthAg1wajNKTq9oOmE+X08J7cplMM?= =?us-ascii?Q?KaDzeKH0Ol9WGBJZcKfkK4QQe811pp3d6HQoZzuggKEj++Xrq4PDFAtss7QR?= =?us-ascii?Q?E+xhRfRyfxEJjDCySHO3t9d4WLRu60cXjFUj0s/QgZPHUnjlKjYWw9hlIQFJ?= =?us-ascii?Q?ouRcl9WVpqrPVeO35GDXHNVLILSBwgUjZ5ejGGeod2cnpIo9BgeaQUpSUjo2?= =?us-ascii?Q?E2YpOfbzwYNN1OsAopwWv3vtjwy/yMJPrNwAZkzGaqlkpl+qXuyb44JAsgM9?= =?us-ascii?Q?eOiSnjt6Ah2B3w/H7HfiY2rLpUU/+DaZF5Wtz8feenPddT3l1cWb26tNpZEY?= =?us-ascii?Q?Z+XROPgahtNpjJ3lT1F0d8bq4Iw+PqrRwnaoLUNxsMjXsfvwPVmd/R7J/ZZc?= =?us-ascii?Q?MZEzgczq?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-AuthSource: CH2PR12MB3781.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Dec 2020 16:57:52.0097 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-Network-Message-Id: d36cd2c8-e7b9-47ba-cc16-08d8ac1ae148 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 2NnbHa7tyIR3LcZs7HXEGpPgpLEwyoe5iucBLRHFPyev4LGHgPY/1jtSMRiGAM/4TV5+8Tz1IhG6Tc/GM28qUQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4149 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wesley Chalmers The stack variable "val" is potentially unpopulate it, so initialize it with the value 0xf (indicating an invalid mux). Cc: Alex Deucher Cc: Alex Deucher Cc: Harry Wentland Cc: Nicholas Kazlauskas Cc: Hersen Wu Cc: Dave Airlie Cc: Josip Pavic Cc: Bindu Ramamurthy Signed-off-by: Wesley Chalmers Reviewed-by: Martin Leung Reviewed-by: Rodrigo Siqueira --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c index a46cb20596fe..b096011acb49 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c @@ -470,7 +470,7 @@ void mpc1_cursor_lock(struct mpc *mpc, int opp_id, bool lock) unsigned int mpc1_get_mpc_out_mux(struct mpc *mpc, int opp_id) { struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc); - uint32_t val; + uint32_t val = 0xf; if (opp_id < MAX_OPP && REG(MUX[opp_id])) REG_GET(MUX[opp_id], MPC_OUT_MUX, &val); -- 2.30.0.rc2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F88EC433E0 for ; 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Tue, 29 Dec 2020 16:57:52 +0000 From: Rodrigo Siqueira To: LKML , dri-devel , amd-gfx@lists.freedesktop.org Subject: [PATCH] drm/amd/display: Initialize stack variable Date: Tue, 29 Dec 2020 11:57:40 -0500 Message-Id: <20201229165740.519759-1-Rodrigo.Siqueira@amd.com> X-Mailer: git-send-email 2.30.0.rc2 X-Originating-IP: [2607:fea8:56e0:6d60:f639:9ff:fe01:4714] X-ClientProxiedBy: YTXPR0101CA0024.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::37) To CH2PR12MB3781.namprd12.prod.outlook.com (2603:10b6:610:27::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from atma1.hitronhub.home (2607:fea8:56e0:6d60:f639:9ff:fe01:4714) by YTXPR0101CA0024.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3721.19 via Frontend Transport; Tue, 29 Dec 2020 16:57:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: d36cd2c8-e7b9-47ba-cc16-08d8ac1ae148 X-MS-TrafficTypeDiagnostic: CH2PR12MB4149: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:514; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Wesley Chalmers The stack variable "val" is potentially unpopulate it, so initialize it with the value 0xf (indicating an invalid mux). Cc: Alex Deucher Cc: Alex Deucher Cc: Harry Wentland Cc: Nicholas Kazlauskas Cc: Hersen Wu Cc: Dave Airlie Cc: Josip Pavic Cc: Bindu Ramamurthy Signed-off-by: Wesley Chalmers Reviewed-by: Martin Leung Reviewed-by: Rodrigo Siqueira --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c index a46cb20596fe..b096011acb49 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c @@ -470,7 +470,7 @@ void mpc1_cursor_lock(struct mpc *mpc, int opp_id, bool lock) unsigned int mpc1_get_mpc_out_mux(struct mpc *mpc, int opp_id) { struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc); - uint32_t val; + uint32_t val = 0xf; if (opp_id < MAX_OPP && REG(MUX[opp_id])) REG_GET(MUX[opp_id], MPC_OUT_MUX, &val); -- 2.30.0.rc2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93EBEC433DB for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Wesley Chalmers The stack variable "val" is potentially unpopulate it, so initialize it with the value 0xf (indicating an invalid mux). Cc: Alex Deucher Cc: Alex Deucher Cc: Harry Wentland Cc: Nicholas Kazlauskas Cc: Hersen Wu Cc: Dave Airlie Cc: Josip Pavic Cc: Bindu Ramamurthy Signed-off-by: Wesley Chalmers Reviewed-by: Martin Leung Reviewed-by: Rodrigo Siqueira --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c index a46cb20596fe..b096011acb49 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c @@ -470,7 +470,7 @@ void mpc1_cursor_lock(struct mpc *mpc, int opp_id, bool lock) unsigned int mpc1_get_mpc_out_mux(struct mpc *mpc, int opp_id) { struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc); - uint32_t val; + uint32_t val = 0xf; if (opp_id < MAX_OPP && REG(MUX[opp_id])) REG_GET(MUX[opp_id], MPC_OUT_MUX, &val); -- 2.30.0.rc2 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx