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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2CBFC433FE for ; Tue, 22 Mar 2022 21:48:32 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6E1E06B01AE; Tue, 22 Mar 2022 17:48:32 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 695836B01B1; Tue, 22 Mar 2022 17:48:32 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4BE9E6B01B3; Tue, 22 Mar 2022 17:48:32 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0219.hostedemail.com [216.40.44.219]) by kanga.kvack.org (Postfix) with ESMTP id 3D7016B01AE for ; Tue, 22 Mar 2022 17:48:32 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 02DBD1828AE4E for ; Tue, 22 Mar 2022 21:48:32 +0000 (UTC) X-FDA: 79273361664.28.859D892 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf06.hostedemail.com (Postfix) with ESMTP id 84625180012 for ; Tue, 22 Mar 2022 21:48:31 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 79904B81DAB; Tue, 22 Mar 2022 21:48:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 257E0C340EC; Tue, 22 Mar 2022 21:48:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1647985709; bh=uRITHZf8d6O7W32n304m1vz3dms6bCgyqp7pO2fMBr8=; h=Date:To:From:In-Reply-To:Subject:From; b=mDavlmCmh1Fq0DkQpofy2B+33lTcPhonwJgxzWAVXLWvjZG7FVhtuLfpZB1RKW982 3IFKBkMhZgw21ltkQLiNn4ya3A1xAl6SrUki1fAzhZp0s0WfXgNJ7yoa0+g/q/6OE4 2azALnnQtNam1lQ1jWrD1epj2T1sEyBnQ02C2mEc= Date: Tue, 22 Mar 2022 14:48:28 -0700 To: songmuchun@bytedance.com,linmiaohe@huawei.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 196/227] mm/hmm.c: remove unneeded local variable ret Message-Id: <20220322214829.257E0C340EC@smtp.kernel.org> X-Stat-Signature: pn84dpuagumet1cb13jt8od37ppbkgw9 Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=mDavlmCm; spf=pass (imf06.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 84625180012 X-HE-Tag: 1647985711-46477 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: Miaohe Lin Subject: mm/hmm.c: remove unneeded local variable ret The local variable ret is always 0. Remove it to make code more tight. Link: https://lkml.kernel.org/r/20220125124833.39718-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Reviewed-by: Muchun Song Signed-off-by: Andrew Morton --- mm/hmm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/hmm.c~mm-hmmc-remove-unneeded-local-variable-ret +++ a/mm/hmm.c @@ -417,7 +417,6 @@ static int hmm_vma_walk_pud(pud_t *pudp, struct hmm_range *range = hmm_vma_walk->range; unsigned long addr = start; pud_t pud; - int ret = 0; spinlock_t *ptl = pud_trans_huge_lock(pudp, walk->vma); if (!ptl) @@ -466,7 +465,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, out_unlock: spin_unlock(ptl); - return ret; + return 0; } #else #define hmm_vma_walk_pud NULL _