From nobody Fri Apr 10 14:12:25 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0E95C433FE for ; Fri, 14 Oct 2022 21:24:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230038AbiJNVYx (ORCPT ); Fri, 14 Oct 2022 17:24:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229956AbiJNVY1 (ORCPT ); Fri, 14 Oct 2022 17:24:27 -0400 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FD591DDDEE; Fri, 14 Oct 2022 14:24:09 -0700 (PDT) Received: from localhost.localdomain (178.176.75.138) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.986.14; Sat, 15 Oct 2022 00:23:10 +0300 From: Sergey Shtylyov To: Oleg Nesterov , "David S. Miller" , , CC: Andrew Morton Subject: [PATCH 12/13] sparc: ptrace: user_regset_copyin_ignore() always returns 0 Date: Sat, 15 Oct 2022 00:22:34 +0300 Message-ID: <20221014212235.10770-13-s.shtylyov@omp.ru> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20221014212235.10770-1-s.shtylyov@omp.ru> References: <20221014212235.10770-1-s.shtylyov@omp.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [178.176.75.138] X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 10/14/2022 21:00:39 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 173137 [Oct 14 2022] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: s.shtylyov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 500 500 6cc86d8f5638d79810308830d98d6b6279998c49 X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: omp.ru:7.1.1;127.0.0.199:7.1.2;178.176.75.138:7.7.3;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1 X-KSE-AntiSpam-Info: ApMailHostAddress: 178.176.75.138 X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 10/14/2022 21:03:00 X-KSE-AttachmentFiltering-Interceptor-Info: protection disabled X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 10/14/2022 3:23:00 PM X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" user_regset_copyin_ignore() always returns 0, so checking its result seems pointless -- don't do this anymore... Signed-off-by: Sergey Shtylyov --- arch/sparc/kernel/ptrace_32.c | 9 +++++---- arch/sparc/kernel/ptrace_64.c | 23 +++++++++++------------ 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c index e7db48acb838..c273ccebea46 100644 --- a/arch/sparc/kernel/ptrace_32.c +++ b/arch/sparc/kernel/ptrace_32.c @@ -158,8 +158,9 @@ static int genregs32_set(struct task_struct *target, 35 * sizeof(u32), 36 * sizeof(u32)); if (ret || !count) return ret; - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 36 * sizeof(u32), 38 * sizeof(u32)); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, 36 * sizeof(u32), + 38 * sizeof(u32)); + return 0; } =20 static int fpregs32_get(struct task_struct *target, @@ -203,8 +204,8 @@ static int fpregs32_set(struct task_struct *target, 33 * sizeof(u32), 34 * sizeof(u32)); if (!ret) - ret =3D user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 34 * sizeof(u32), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 34 * sizeof(u32), -1); return ret; } =20 diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 86a7eb5c27ba..4deba5b6eddb 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -332,8 +332,8 @@ static int genregs64_set(struct task_struct *target, } =20 if (!ret) - ret =3D user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 36 * sizeof(u64), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 36 * sizeof(u64), -1); =20 return ret; } @@ -406,8 +406,8 @@ static int fpregs64_set(struct task_struct *target, task_thread_info(target)->fpsaved[0] =3D fprs; =20 if (!ret) - ret =3D user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 35 * sizeof(u64), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 35 * sizeof(u64), -1); return ret; } =20 @@ -473,10 +473,8 @@ static int setregs64_set(struct task_struct *target, 15 * sizeof(u64)); if (ret) return ret; - ret =3Duser_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 15 * sizeof(u64), 16 * sizeof(u64)); - if (ret) - return ret; + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 15 * sizeof(u64), 16 * sizeof(u64)); /* TSTATE */ ret =3D user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tstate, @@ -670,8 +668,9 @@ static int genregs32_set(struct task_struct *target, pos *=3D sizeof(reg); count *=3D sizeof(reg); =20 - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 38 * sizeof(reg), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 38 * sizeof(reg), -1); + return 0; } =20 static int fpregs32_get(struct task_struct *target, @@ -737,8 +736,8 @@ static int fpregs32_set(struct task_struct *target, task_thread_info(target)->fpsaved[0] =3D fprs; =20 if (!ret) - ret =3D user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 34 * sizeof(u32), -1); + user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + 34 * sizeof(u32), -1); return ret; } =20 --=20 2.26.3