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=-16.7 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 78A94C63777 for ; Fri, 27 Nov 2020 01:42:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37A232067D for ; Fri, 27 Nov 2020 01:42:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392136AbgK0Bki (ORCPT ); Thu, 26 Nov 2020 20:40:38 -0500 Received: from mga05.intel.com ([192.55.52.43]:45269 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388130AbgK0Bki (ORCPT ); Thu, 26 Nov 2020 20:40:38 -0500 IronPort-SDR: fFzJq94Yz+yeE5+ly7alTdH66IY75qqwOHKqWOyUk28gPTNIPhedtWy3l4vALiGmreECNA0k1L TMsiQ5onic7A== X-IronPort-AV: E=McAfee;i="6000,8403,9817"; a="257047340" X-IronPort-AV: E=Sophos;i="5.78,373,1599548400"; d="scan'208";a="257047340" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Nov 2020 17:40:37 -0800 IronPort-SDR: luTU8T4gGrJ+vN0Tv7JZLe7oT+Nn79S7H6CmHj0LDER5vank1jJsa/uHNMPirlRiAITy28qwGO rDr0n2OTakPg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,373,1599548400"; d="scan'208";a="535902890" Received: from allen-box.sh.intel.com ([10.239.159.28]) by fmsmga006.fm.intel.com with ESMTP; 26 Nov 2020 17:40:35 -0800 From: Lu Baolu To: Will Deacon , Joerg Roedel Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu , kernel test robot Subject: [PATCH 1/1] iommu/vt-d: Remove set but not used variable Date: Fri, 27 Nov 2020 09:33:08 +0800 Message-Id: <20201127013308.1833610-1-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes gcc '-Wunused-but-set-variable' warning: drivers/iommu/intel/iommu.c:5643:27: warning: variable 'last_pfn' set but not used [-Wunused-but-set-variable] 5643 | unsigned long start_pfn, last_pfn; | ^~~~~~~~ This variable is never used, so remove it. Fixes: 2a2b8eaa5b256 ("iommu: Handle freelists when using deferred flushing in iommu drivers") Reported-by: kernel test robot Signed-off-by: Lu Baolu --- drivers/iommu/intel/iommu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index f9379b4a32fb..8c6c3c0812d2 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4942,13 +4942,12 @@ static void intel_iommu_tlb_sync(struct iommu_domain *domain, struct dmar_domain *dmar_domain = to_dmar_domain(domain); unsigned long iova_pfn = IOVA_PFN(gather->start); size_t size = gather->end - gather->start; - unsigned long start_pfn, last_pfn; + unsigned long start_pfn; unsigned long nrpages; int iommu_id; nrpages = aligned_nrpages(gather->start, size); start_pfn = mm_to_dma_pfn(iova_pfn); - last_pfn = start_pfn + nrpages - 1; for_each_domain_iommu(iommu_id, dmar_domain) iommu_flush_iotlb_psi(g_iommus[iommu_id], dmar_domain, -- 2.25.1