From patchwork Wed Nov 30 03:40:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 27577 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp710909wrr; Tue, 29 Nov 2022 19:45:01 -0800 (PST) X-Google-Smtp-Source: AA0mqf7GkjgBUNleWVGT+P5f3tIC8eWyW81mocZ0osKchqHpSWeUcKZQwp9qkhAs4mTJMPkJupjC X-Received: by 2002:a17:906:7848:b0:7ad:b286:72da with SMTP id p8-20020a170906784800b007adb28672damr51207525ejm.152.1669779901190; Tue, 29 Nov 2022 19:45:01 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1669779901; cv=none; d=google.com; s=arc-20160816; b=vwlIK1mxHdRogR1clVFiLeKA0Y/Ca2OWkIXAS3BT8KNXfaT5cZOUj+HNeGW8kfzOGg zQa2Q6bQknCRH+E0JFcntpSvLb+Tv2Jy0B6taz5Ezjvgzlp1ey4bD2Dsm0ZcpelMccIX 0qY0zLjYYi1qNIIhMzNfyPr2RmEzwRCTMlweKB43VuZciGQnwHyMAzBkdolsDvzVsWkZ 2Rp80ia1oefbjjNK8+GxT90xhLFMJrfnlEuHUowhJXoYwYEjkZTJQfGDqPIhFkQabH1k GJOo8WWGfqqgdX2Pb4jpxEmLyxgmdn7lTYUWTqibCbSxiVcn/UOKRqQV8RIc1AHI+TOg r+uw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Y7NRaf9YPAbNBfmjkkqYZAEEFf96ZWFOfn+7iwiFMWI=; b=MY4taI4kNvQ5/veMuNSmQQa4x1yUlCdqL/fqM7qtbcaHp99hAA0H1ooV4+f8481LjH r6Da1xYVgj4omE3AYCk2mOlgdqPhmn4JFgOlJFNSb1SPj2sVJmKMZIFC0bZOe5bqEp2T K9EQNhOexKdlVA+g+KaZgc4Vu2M+uN3Ej8kHcaYD1TBDdoI+kW5MjUJ7GaMg/jsf4wsO 9OArAjKJ++YHucfVpLoP15iCnzjqzk0o1M2yeAY81qIOHBHuz4VWZvDTdI6tsNrhiRJt /MQymga0AZBe4+EhfeL4p3cxX+VyI7ODnrw7FVUGlMtUz0ZEP99Jf6NoBMTyyW6i+dNS E03A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=lL7motiI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id m19-20020a056402511300b0045981993486si422582edd.227.2022.11.29.19.44.38; Tue, 29 Nov 2022 19:45:01 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=lL7motiI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231821AbiK3Dmh (ORCPT + 99 others); Tue, 29 Nov 2022 22:42:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233046AbiK3Dmb (ORCPT ); Tue, 29 Nov 2022 22:42:31 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A46407462E; Tue, 29 Nov 2022 19:42:26 -0800 (PST) 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 sin.source.kernel.org (Postfix) with ESMTPS id D8ABCCE110D; Wed, 30 Nov 2022 03:42:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7425DC433D6; Wed, 30 Nov 2022 03:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669779743; bh=mE9q4aVwyfDFtea3FBefeBXuO1WtbOQ4Us26dpgF3tM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lL7motiItZ/xK87s6Yv4OxG3dfs0v1U+kZoy7+MSPCSJez04jhR0QAsrGqP6xCUtC uw2qCZNpkJ/Gn8+MeMswHD0wZJjojczNwtHg/elDmQmCaq59uUrRwQmsq7TYPXsXjG R72Zk2vYHXw8ego0CGwGnUn7KnltjY51UTWk7tBTREo+Hfk5eITF0EY2T9V6pfQoJQ +gUv9eojokK1OW5gG1GI2bqOcdTZoiytV2SzG/R7PVvCiA8m7MCKGMWK37TQyus+p/ XhO3N6UrejxBpzExSwGfpu5CROdXSOLobrh6AgoFWmp3E95OpydrDy1xxF7XZHveF3 nNHNZFkmUvIwA== From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, tglx@linutronix.de, peterz@infradead.org, luto@kernel.org, conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org, lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org, apatel@ventanamicro.com, atishp@atishpatra.org, palmer@dabbelt.com, paul.walmsley@sifive.com, mark.rutland@arm.com, zouyipeng@huawei.com, bigeasy@linutronix.de, David.Laight@aculab.com, chenzhongjin@huawei.com, greentime.hu@sifive.com, andy.chiu@sifive.com, ben@decadent.org.uk Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Oleg Nesterov Subject: [PATCH -next V9 04/14] riscv: ptrace: Remove duplicate operation Date: Tue, 29 Nov 2022 22:40:49 -0500 Message-Id: <20221130034059.826599-5-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20221130034059.826599-1-guoren@kernel.org> References: <20221130034059.826599-1-guoren@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1750891129668127504?= X-GMAIL-MSGID: =?utf-8?q?1750891129668127504?= From: Guo Ren The TIF_SYSCALL_TRACE is controlled by a common code, see kernel/ptrace.c and include/linux/thread.h. clear_task_syscall_work(child, SYSCALL_TRACE); Reviewed-by: Oleg Nesterov Tested-by: Jisheng Zhang Signed-off-by: Guo Ren Signed-off-by: Guo Ren --- arch/riscv/kernel/ptrace.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c index 2ae8280ae475..44f4b1ca315d 100644 --- a/arch/riscv/kernel/ptrace.c +++ b/arch/riscv/kernel/ptrace.c @@ -212,7 +212,6 @@ unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n) void ptrace_disable(struct task_struct *child) { - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); } long arch_ptrace(struct task_struct *child, long request,