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[45.249.212.191]) by mx.google.com with ESMTPS id 1si15321695ply.180.2019.07.24.07.16.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 Jul 2019 07:16:09 -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 DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 69C3A31B2A1EFBD16A29; Wed, 24 Jul 2019 22:16:08 +0800 (CST) Received: from localhost (10.133.213.239) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.439.0; Wed, 24 Jul 2019 22:15:59 +0800 From: YueHaibing To: , , , , , , CC: , , YueHaibing Subject: [PATCH] mm/rmap.c: remove set but not used variable 'cstart' Date: Wed, 24 Jul 2019 22:14:53 +0800 Message-ID: <20190724141453.38536-1-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: Fixes gcc '-Wunused-but-set-variable' warning: mm/rmap.c: In function page_mkclean_one: mm/rmap.c:906:17: warning: variable cstart set but not used [-Wunused-but-set-variable] It is not used any more since commit cdb07bdea28e ("mm/rmap.c: remove redundant variable cend") Reported-by: Hulk Robot Signed-off-by: YueHaibing --- mm/rmap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/rmap.c b/mm/rmap.c index ec1af8b..40e4def 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -903,10 +903,9 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, mmu_notifier_invalidate_range_start(&range); while (page_vma_mapped_walk(&pvmw)) { - unsigned long cstart; int ret = 0; - cstart = address = pvmw.address; + address = pvmw.address; if (pvmw.pte) { pte_t entry; pte_t *pte = pvmw.pte; @@ -933,7 +932,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, entry = pmd_wrprotect(entry); entry = pmd_mkclean(entry); set_pmd_at(vma->vm_mm, address, pmd, entry); - cstart &= PMD_MASK; ret = 1; #else /* unexpected pmd-mapped page? */ -- 2.7.4