From patchwork Mon May 10 10:41:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiapeng Chong X-Patchwork-Id: 12247629 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,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 538D2C4360C for ; Mon, 10 May 2021 10:42:46 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3BD4661C28 for ; Mon, 10 May 2021 10:42:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3BD4661C28 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A561D16AE; Mon, 10 May 2021 12:41:53 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A561D16AE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1620643363; bh=j9fdiKT5gKmbY8+GXwtJ/ImZZEXqvcwgtU9c7AcJ4LQ=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=h3qtscx6rjo3PuDPSMNCxvoTkViWzLU7xictcU5MORePKp8nJ2RCizb3Ipq0pfEgQ AZoN6g/ZnGwOU9Sh1215DAj5H73Act2akzbTWBnY3Zy4VQuwOejX3eQE+HNEpH4hUF Ogx4tk6M1vNdw2lloP4mB0Om9XX3jkly53yB/knA= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 41C57F800B4; Mon, 10 May 2021 12:41:53 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E8846F80240; Mon, 10 May 2021 12:41:51 +0200 (CEST) Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 2EA0EF800B4 for ; Mon, 10 May 2021 12:41:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2EA0EF800B4 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R141e4; 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=5; SR=0; TI=SMTPD_---0UYNOpI-_1620643296; Received: from j63c13417.sqa.eu95.tbsite.net(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0UYNOpI-_1620643296) by smtp.aliyun-inc.com(127.0.0.1); Mon, 10 May 2021 18:41:43 +0800 From: Jiapeng Chong To: perex@perex.cz Subject: [PATCH] ALSA: hda: generic: Remove redundant assignment to dac and dacs[i] Date: Mon, 10 May 2021 18:41:35 +0800 Message-Id: <1620643295-130162-1-git-send-email-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Cc: Jiapeng Chong , alsa-devel@alsa-project.org, tiwai@suse.com, linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Variable dac and dacs[i] is set to zero, but this value is never read as it is overwritten or not used later on, hence it is a redundant assignment and can be removed. Clean up the following clang-analyzer warning: sound/pci/hda/hda_generic.c:1436:4: warning: Value stored to 'dac' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong --- sound/pci/hda/hda_generic.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index b638fc2..cce1bf7 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -1433,7 +1433,6 @@ static int try_assign_dacs(struct hda_codec *codec, int num_outs, path = snd_hda_add_new_path(codec, dac, pin, 0); } if (!path) { - dac = dacs[i] = 0; badness += bad->no_dac; } else { /* print_nid_path(codec, "output", path); */