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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable 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 A8BCBC47084 for ; Tue, 25 May 2021 10:40:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7BF0A61423 for ; Tue, 25 May 2021 10:40:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230075AbhEYKmO (ORCPT ); Tue, 25 May 2021 06:42:14 -0400 Received: from out30-42.freemail.mail.aliyun.com ([115.124.30.42]:57678 "EHLO out30-42.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229663AbhEYKmN (ORCPT ); Tue, 25 May 2021 06:42:13 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R881e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=jiapeng.chong@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0Ua47xFf_1621939218; Received: from j63c13417.sqa.eu95.tbsite.net(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0Ua47xFf_1621939218) by smtp.aliyun-inc.com(127.0.0.1); Tue, 25 May 2021 18:40:42 +0800 From: Jiapeng Chong To: alexander.deucher@amd.com Cc: christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie, daniel@ffwll.ch, sumit.semwal@linaro.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Jiapeng Chong Subject: [PATCH v2] amdgpu: remove unreachable code Date: Tue, 25 May 2021 18:40:14 +0800 Message-Id: <1621939214-57004-1-git-send-email-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the function amdgpu_uvd_cs_msg(), every branch in the switch statement will have a return, so the code below the switch statement will not be executed. Eliminate the follow smatch warning: drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c:845 amdgpu_uvd_cs_msg() warn: ignoring unreachable code. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong --- Changes in v2: -For the follow advice: https://lore.kernel.org/patchwork/patch/1435074/ drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c index 82f0542..b32ed85 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -840,7 +840,6 @@ static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx, default: DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type); - return -EINVAL; } BUG(); return -EINVAL; -- 1.8.3.1