From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757828AbdJKRvE (ORCPT ); Wed, 11 Oct 2017 13:51:04 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:59855 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752539AbdJKRtr (ORCPT ); Wed, 11 Oct 2017 13:49:47 -0400 From: Colin King To: Andrew Morton , "Kirill A . Shutemov" , Minchan Kim , Johannes Weiner , linux-mm@kvack.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm/rmap: remove redundant variable cend Date: Wed, 11 Oct 2017 18:49:42 +0100 Message-Id: <20171011174942.1372-1-colin.king@canonical.com> X-Mailer: git-send-email 2.14.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Colin Ian King Variable cend is set but never read, hence it is redundant and can be removed. Cleans up clang build warning: Value stored to 'cend' is never read Fixes: 369ea8242c0f ("mm/rmap: update to new mmu_notifier semantic v2") Signed-off-by: Colin Ian King --- mm/rmap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/rmap.c b/mm/rmap.c index 787c07fb37dc..ffbea6a9e12d 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -899,7 +899,7 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, mmu_notifier_invalidate_range_start(vma->vm_mm, start, end); while (page_vma_mapped_walk(&pvmw)) { - unsigned long cstart, cend; + unsigned long cstart; int ret = 0; cstart = address = pvmw.address; @@ -915,7 +915,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, entry = pte_wrprotect(entry); entry = pte_mkclean(entry); set_pte_at(vma->vm_mm, address, pte, entry); - cend = cstart + PAGE_SIZE; ret = 1; } else { #ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE @@ -931,7 +930,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, entry = pmd_mkclean(entry); set_pmd_at(vma->vm_mm, address, pmd, entry); cstart &= PMD_MASK; - cend = cstart + PMD_SIZE; ret = 1; #else /* unexpected pmd-mapped page? */ -- 2.14.1