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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 F3C80C43331 for ; Thu, 2 Apr 2020 04:11:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B68B6206E9 for ; Thu, 2 Apr 2020 04:11:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="W8fWnDXs" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B68B6206E9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 689208E0097; Thu, 2 Apr 2020 00:11:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5EB208E000D; Thu, 2 Apr 2020 00:11:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5017D8E0097; Thu, 2 Apr 2020 00:11:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0167.hostedemail.com [216.40.44.167]) by kanga.kvack.org (Postfix) with ESMTP id 33B538E000D for ; Thu, 2 Apr 2020 00:11:47 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 0054D181AC9CC for ; Thu, 2 Apr 2020 04:11:46 +0000 (UTC) X-FDA: 76661591454.29.scent18_66d71d116a847 X-HE-Tag: scent18_66d71d116a847 X-Filterd-Recvd-Size: 2430 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Thu, 2 Apr 2020 04:11:46 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A18E1208FE; Thu, 2 Apr 2020 04:11:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585800705; bh=mT5/x4XemojojvA22cSvemzhwUx312oZBuS/XgXI1Qg=; h=Date:From:To:Subject:In-Reply-To:From; b=W8fWnDXs6hxciNjdIDeoc/ZblXOcznzGYyYfP/Y06ud+VwxUc8R9qmRj0f1yFg5s8 NAT/pkePq0axbuEdo/yBRNhEpZ4abC4pA5sUtvLtnNgUyHF7B96VTVd/ZTtp4Vped1 ta8Amq+xLX3UZ7F+6PxdOopwdIJy7cyZbLf/IWOA= Date: Wed, 01 Apr 2020 21:11:45 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mateusznosek0@gmail.com, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 151/155] mm/hugetlb.c: clean code by removing unnecessary initialization Message-ID: <20200402041145.oU4KXU7yk%akpm@linux-foundation.org> In-Reply-To: <20200401210155.09e3b9742e1c6e732f5a7250@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Mateusz Nosek Subject: mm/hugetlb.c: clean code by removing unnecessary initialization Previously variable 'check_addr' was initialized, but was not read later before reassigning. So the initialization can be removed. Link: http://lkml.kernel.org/r/20200303212354.25226-1-mateusznosek0@gmail.com Signed-off-by: Mateusz Nosek Reviewed-by: Andrew Morton Reviewed-by: Mike Kravetz Signed-off-by: Andrew Morton --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/hugetlb.c~mm-hugetlbc-clean-code-by-removing-unnecessary-initialization +++ a/mm/hugetlb.c @@ -5156,7 +5156,7 @@ static bool vma_shareable(struct vm_area void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, unsigned long *start, unsigned long *end) { - unsigned long check_addr = *start; + unsigned long check_addr; if (!(vma->vm_flags & VM_MAYSHARE)) return; _