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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 51A1AC43381 for ; Wed, 27 Feb 2019 22:32:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 18AE121850 for ; Wed, 27 Feb 2019 22:32:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="kHnZhgEJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730511AbfB0WcB (ORCPT ); Wed, 27 Feb 2019 17:32:01 -0500 Received: from mail-qt1-f196.google.com ([209.85.160.196]:36627 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730393AbfB0WcA (ORCPT ); Wed, 27 Feb 2019 17:32:00 -0500 Received: by mail-qt1-f196.google.com with SMTP id p25so21304926qtb.3 for ; Wed, 27 Feb 2019 14:32:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=from:to:cc:subject:date:message-id; bh=BwRNT+NYpDumPyDWkKY99dBVD182B+9MzQU77FnCN40=; b=kHnZhgEJDbKSFZwy8E1s64zMyJtZoqW7QogBB3DpNcwIVTEWKCRK6yNhYpqTrPwPwX gkEPmV8OU1bPNr30yFqW8AlR65naH1SUmxG+uvOIPzqSq1PLWIDFotg7HKMag0w7COFB CcjITo35WMBQGbpdynUfAI3ohDOr7LNAY2/s5UqyD2bIxJaLjSCLZeD+4XnwFSQSftxQ 2qwjKHIaQOonpa7KzsjoEkvTdvaoPa6GfhLdX2J3dSGalV+oRE/j4kgMhicM6qbxRoUs tRstVE1KdHkLYRMxFezL12+TqISljpGwUC3NByxlxIryPO59iMfdQE1LdW1B1PUEbRPl zvBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=BwRNT+NYpDumPyDWkKY99dBVD182B+9MzQU77FnCN40=; b=hCCaR6heAD2Tmg38T2kzXS+HNi+W110Mgl3v/DVbVw7db5kMXczI2LKzNaeaVM3Xqw rNY50lK6A/Js2x2FZmCEsxUj8Lufc465Td8Sfcrrd2A+NQ4nSG3JvX8+svN+wJVd7lSj K5SUn6f17ve1xLvlJti7JIF3GzQEd7Q41OhKEeoaKqIGRRPC3V2OEhTFpCCY9e4Lz8Ob K6O+FbUn/5wqTQo8k5lUQV4ZQifUl14Mc2ryDzN3gi8bFvopjS9BH2BHgCAMOPSfzpJw j84mihfe43TuEB9L73Sf+nsM0UZBsqWsGUB2hO8NiAoNjv5AtgbhxdanihMIvCbZZGHX 15BQ== X-Gm-Message-State: AHQUAuZdiTIj/H5+tHqDnxxgw21+8IUu+W9Z9qkICLgj0kGBiXcsaq0L e6MTmGOJrTMCOpgjmQYdFPyqYw== X-Google-Smtp-Source: APXvYqxKFRSPXOa/tVaB39iDzPtwc91E5sHuTtaT9KNc+SHShz0DX6tfEs7XLSyUHn30k48i3STZ3w== X-Received: by 2002:aed:3b92:: with SMTP id r18mr3672415qte.7.1551306719927; Wed, 27 Feb 2019 14:31:59 -0800 (PST) Received: from Qians-MBP.fios-router.home (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id a133sm8884784qkg.66.2019.02.27.14.31.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 Feb 2019 14:31:59 -0800 (PST) From: Qian Cai To: dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Qian Cai Subject: [PATCH] x86: fix "old_pte" set but not used Date: Wed, 27 Feb 2019 17:31:45 -0500 Message-Id: <20190227223145.78239-1-cai@lca.pw> X-Mailer: git-send-email 2.17.2 (Apple Git-113) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org arch/x86/mm/pageattr.c: In function '__should_split_large_page': arch/x86/mm/pageattr.c:741:17: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] Signed-off-by: Qian Cai --- arch/x86/mm/pageattr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 14e6119838a6..4c570612e24e 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -738,7 +738,7 @@ static int __should_split_large_page(pte_t *kpte, unsigned long address, { unsigned long numpages, pmask, psize, lpaddr, pfn, old_pfn; pgprot_t old_prot, new_prot, req_prot, chk_prot; - pte_t new_pte, old_pte, *tmp; + pte_t new_pte, *tmp; enum pg_level level; /* @@ -781,7 +781,7 @@ static int __should_split_large_page(pte_t *kpte, unsigned long address, * Convert protection attributes to 4k-format, as cpa->mask* are set * up accordingly. */ - old_pte = *kpte; + /* Clear PSE (aka _PAGE_PAT) and move PAT bit to correct position */ req_prot = pgprot_large_2_4k(old_prot); -- 2.17.2 (Apple Git-113)