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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 5E884C7618B for ; Wed, 24 Jul 2019 14:08:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2ECB222ADA for ; Wed, 24 Jul 2019 14:08:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2ECB222ADA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C66F68E0003; Wed, 24 Jul 2019 10:08:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BF0008E0002; Wed, 24 Jul 2019 10:08:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AB8638E0003; Wed, 24 Jul 2019 10:08:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by kanga.kvack.org (Postfix) with ESMTP id 828938E0002 for ; Wed, 24 Jul 2019 10:08:01 -0400 (EDT) Received: by mail-pg1-f198.google.com with SMTP id w5so28360551pgs.5 for ; Wed, 24 Jul 2019 07:08:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:from:to:cc :subject:date:message-id:mime-version; bh=g2zRTwoZ/pVBysAnNKeZxi6wBJAkueOysD7DMBarhWI=; b=LDpVCAY7vPlqZ5gbL+TpPe9YgRp+mwf3GFkvP8xuCg8wo9+zzeFf7UckEF2T5Kzls+ xgyl7hDcvpvFrO/+kW+2AUAkzyC1XaqJchAeq1hIclQwDwdQNg08oaCQ+8XpZvhEKwoL mW7kqfi3CljijHVcj2WuMVECg6llCR4XlulK0fTUKmtWaYBieEp5jMgjaejxbihHvWxv 470P7bNaDa6nTNjA/TunsRqfhnug024y0M46oNVnPRVSbx3w16DWuo+uymU1mjT1ij25 I2BA2UGcSL5f/HxzOxlVkZPbLHDjdoHcweExbTYKpWx1LTMX8K0elT3hLN39WB2EApJt b5RA== X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of yuehaibing@huawei.com designates 45.249.212.191 as permitted sender) smtp.mailfrom=yuehaibing@huawei.com X-Gm-Message-State: APjAAAUMD/21RcDLjkHp5Oo7aDDlki64Mfx8dK+pxEaqP3kCdQvT52wQ ED6CV2mrMLPSE7zKcCCsxa5R1nbtyR4w9FCq8a7i+kWQJtZopl+un0GXqmSf4eX0OWqTd/RKzHd T6hNQS98xnUQUfCtr2t/g7CuYmhCwG1FfqW62af05cpPcnnkr4BGkRAbt5Vw8CTQDgw== X-Received: by 2002:aa7:843c:: with SMTP id q28mr11776718pfn.152.1563977281163; Wed, 24 Jul 2019 07:08:01 -0700 (PDT) X-Google-Smtp-Source: APXvYqwsjkGMy3C0IQ8cGJ++tQqU/Y7JU1qf/DVMQxRP6fPUVMdUqJ4pi4OXIsYRQBVwIU5aQK99 X-Received: by 2002:aa7:843c:: with SMTP id q28mr11776660pfn.152.1563977280542; Wed, 24 Jul 2019 07:08:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1563977280; cv=none; d=google.com; s=arc-20160816; b=pAUZKDTDziaStIGJPVs4vFL3/nJZv/Pjs1BlYWnKl2zROww3thEHyncAyYY+EP81B0 1WXuouIpjtTEdGrpkFGQqP7teXZhn+X2VBJwwnin5IGixS0lVyk0pW7XgFrt8Im3zdnN zj/cUKeBZUqEMMgneZtjnX1koNkG3H9yz5d//ybHa7EfkjtgbQ6xpVuNkNWTpe+Z9dHi KRwLXELTmxvbuhL3RAAOKUbUg3kHT6O43agCpBt1+P0522hkjkDGZNzHKdb45OjGBkV1 eWCoSm13vOKk7H4+UijqSsdYbLjM1i5Xu3F8auuT6nlDOwIXMbG+NCWHedNLOsYgJEeB nfzQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:message-id:date:subject:cc:to:from; bh=g2zRTwoZ/pVBysAnNKeZxi6wBJAkueOysD7DMBarhWI=; b=LGGvTv4vbD725jvZPcsmNU/m8FRi5Y+O350X/leStf1ADMhKTB1dAjYl0YulZZnehs Mf2q1Bbs3rgc8mMj+K2FCVqPmmGMlISc67l5dHs+goBOwezQt7/yjsGb5+6XwdUB3OUW 0TNFggHRkLnmt/tR4V4RTB3bzgAkpi48avy7Kx+uf5KnDP18W0XLk6Utsf2YQNtIKsSB EdL/Zt8IYDwq1INWFEaT4HjBq/pDZtkGudm+7NIGyxwhYkFCeh7l4OUtsuNkCMTQHzzP dNFq/PXn3y4vnemyVvS/p8el13my+HWF9Rz/PJHINEA7Uokpr+xqT1OMfdDsDNh8UE+e ei4A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of yuehaibing@huawei.com designates 45.249.212.191 as permitted sender) smtp.mailfrom=yuehaibing@huawei.com Received: from huawei.com (szxga05-in.huawei.com. [45.249.212.191]) by mx.google.com with ESMTPS id b93si14565376plb.11.2019.07.24.07.08.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Jul 2019 07:08:00 -0700 (PDT) Received-SPF: pass (google.com: domain of yuehaibing@huawei.com designates 45.249.212.191 as permitted sender) client-ip=45.249.212.191; Authentication-Results: mx.google.com; spf=pass (google.com: domain of yuehaibing@huawei.com designates 45.249.212.191 as permitted sender) smtp.mailfrom=yuehaibing@huawei.com Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 3FD101BF82E4CB908D9F; Wed, 24 Jul 2019 22:07:59 +0800 (CST) Received: from localhost (10.133.213.239) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.439.0; Wed, 24 Jul 2019 22:07:53 +0800 From: YueHaibing To: , , , , , , CC: , , YueHaibing Subject: [PATCH] mm/mmap.c: silence variable 'new_start' set but not used Date: Wed, 24 Jul 2019 22:07:39 +0800 Message-ID: <20190724140739.59532-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.133.213.239] X-CFilter-Loop: Reflected X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 'new_start' is used in is_hugepage_only_range(), which do nothing in some arch. gcc will warning: mm/mmap.c: In function acct_stack_growth: mm/mmap.c:2311:16: warning: variable new_start set but not used [-Wunused-but-set-variable] Reported-by: Hulk Robot Signed-off-by: YueHaibing --- mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mmap.c b/mm/mmap.c index e2dbed3..56c2a92 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2308,7 +2308,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, unsigned long grow) { struct mm_struct *mm = vma->vm_mm; - unsigned long new_start; + unsigned long __maybe_unused new_start; /* address space limit tests */ if (!may_expand_vm(mm, vma->vm_flags, grow)) -- 2.7.4