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,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 5C297C48BD1 for ; Thu, 10 Jun 2021 02:02:59 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 1F6B16140F for ; Thu, 10 Jun 2021 02:02:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F6B16140F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id D31B44038C; Thu, 10 Jun 2021 02:02:58 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XHpQEWT3K9U8; Thu, 10 Jun 2021 02:02:58 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTPS id C8306401D3; Thu, 10 Jun 2021 02:02:57 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 8E81BC000E; Thu, 10 Jun 2021 02:02:57 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 90066C0022 for ; Thu, 10 Jun 2021 02:02:56 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 6C9306076C for ; Thu, 10 Jun 2021 02:02:56 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tiFKJjQuyxfG for ; Thu, 10 Jun 2021 02:02:55 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by smtp3.osuosl.org (Postfix) with ESMTPS id BBBAB60747 for ; Thu, 10 Jun 2021 02:02:55 +0000 (UTC) IronPort-SDR: 6OI1CPUZppXUhu7a72yzxWCaNl8IpHK1h8kTsP9XThyVGx6sHWfBhDe1wM6L3PCn6WbGCoup15 EnOtbE+NgmtQ== X-IronPort-AV: E=McAfee;i="6200,9189,10010"; a="203359275" X-IronPort-AV: E=Sophos;i="5.83,262,1616482800"; d="scan'208";a="203359275" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2021 19:02:55 -0700 IronPort-SDR: lxEkPi985CEqqdj4hyXVqSKt0kKEkhVti/ig/AUbfOvYJaTkOcbE1jj6hzG2rabvgbxByI8zVP s4wRhmEk+gtw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,262,1616482800"; d="scan'208";a="402500225" Received: from allen-box.sh.intel.com ([10.239.159.105]) by orsmga006.jf.intel.com with ESMTP; 09 Jun 2021 19:02:52 -0700 From: Lu Baolu To: Joerg Roedel Subject: [PATCH 01/23] iommu/vt-d: Remove redundant assignment to variable agaw Date: Thu, 10 Jun 2021 10:00:53 +0800 Message-Id: <20210610020115.1637656-2-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210610020115.1637656-1-baolu.lu@linux.intel.com> References: <20210610020115.1637656-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Cc: Fenghua Yu , Ashok Raj , Aditya Srivastava , Randy Dunlap , YueHaibing , "Gustavo A . R . Silva" , iommu@lists.linux-foundation.org, Colin Ian King , Will Deacon X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Colin Ian King The variable agaw is initialized with a value that is never read and it is being updated later with a new value as a counter in a for-loop. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King Signed-off-by: Lu Baolu Link: https://lore.kernel.org/r/20210416171826.64091-1-colin.king@canonical.com --- drivers/iommu/intel/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index be35284a2016..65c2ed760060 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -564,7 +564,7 @@ static inline int domain_pfn_supported(struct dmar_domain *domain, static int __iommu_calculate_agaw(struct intel_iommu *iommu, int max_gaw) { unsigned long sagaw; - int agaw = -1; + int agaw; sagaw = cap_sagaw(iommu->cap); for (agaw = width_to_agaw(max_gaw); -- 2.25.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu