From patchwork Sat Oct 15 11:46:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 2923 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp605435wrs; Sat, 15 Oct 2022 04:51:19 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5cI7PRWUDv5VU9dt0V63mqWPIU4CWrmXgSbp3PY1O1Pv7zV07fYBq97Gf4LcHlFyW3whCm X-Received: by 2002:a17:903:2589:b0:184:1e21:5f0 with SMTP id jb9-20020a170903258900b001841e2105f0mr2587754plb.52.1665834679045; Sat, 15 Oct 2022 04:51:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1665834679; cv=none; d=google.com; s=arc-20160816; b=trwvbWR4ua+W1C4A7+Pkxc4LhCIoNBvx0ube+RMIIGQb4norr6f75613dBS85MF27Q V2gwOmemofMcKXEY3yd+JPrwbAd+TQnC+1EjOnv9S8iAoX/NYkcHaF0Q9dob4mF+FDn4 b2bV4ZMKrYbqlkg+eQPc+w5qgYiwzte8aE2KW4LiEbCEZq6PWP44rRXR0ZLPixFWenRS BIwGmkaTGVK5vc2kMiBkEW96Dx2lOirmFhyrAxHSPVicJPiQ3sjg8YcI1ARZJLr5nq9T 7TSReQRG3gf74xhhZDCVmH49Sn7jBN0vCMzMqL3jOMbeD10LV6YBvGCnIoDtMSLpSuBD 6ezw== 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=KE1HaCW8/vTK3M7A5UdQL4voTRfIscy1WBRLT2QrV1k=; b=R/QPjKY0yGNZTWt5T6oMxmNQ9+/fKKhLdkHY/ugO7twazoldiseM+6B1IC/79OqdLA 1J7sltl4yN/Op+cjAdhjhhOlUqXc0v+kZyH1fB6Vjzz8YwvNX7Pfxnsb3WmFhkuiMbTC KbNy10WbVgNpOEvSqqbZj6RMxkz5wrP3JRLbJumyArObhDweVimL8JvxElZN+MrJys5A Wp0syVifFy6Fa8LO7zE/+DksWs7XC3e+/00bmKj78SaXaD1KHkRT7QWnNtuwOoBmjZu8 gkdRt9yhwqS1mkK9NLHUhvmx44rnPImw1B98lQ7BWT0JDLQuftB1LjWOMLtbpF/O3qf1 ydcA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=R5XzLVn0; 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 z6-20020a170902d54600b0017a0a61ce92si6078992plf.77.2022.10.15.04.51.06; Sat, 15 Oct 2022 04:51:19 -0700 (PDT) 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=R5XzLVn0; 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 S229763AbiJOLuk (ORCPT + 99 others); Sat, 15 Oct 2022 07:50:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229651AbiJOLuY (ORCPT ); Sat, 15 Oct 2022 07:50:24 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6809842AC3; Sat, 15 Oct 2022 04:50:20 -0700 (PDT) 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 E8C6CB8093C; Sat, 15 Oct 2022 11:50:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C2A0C43141; Sat, 15 Oct 2022 11:50:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665834617; bh=thj4lp5B0J2/kj7Zi1BMTTtT9fAnJMteMKwuLQ0ArOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R5XzLVn076iss7xV1RdKtNLiZpWVefu5jxhiMooWoTaC4VHTPRY1luaFRWXMKLZVi MmDYcowubcRCEsE7oFjuw2RpP85hKcTCC403awmNHMLSwpcD3ovvuqjSmCBkSkPVT6 i4Srn02JPNpmBXMWF0ESAU6cP/9kwrRkhVFqr2S6RYh5V0iaPV0Nm+UjfUZEoIuXs1 hVc2git2QOO/wWil+QlWhKrg/kuAEFGEXmE/MFR5sLtA+qz9HwnESOODwLkwOV1KEQ UAjYJqwOnkgUuEqQiZkdbQT6xKPGNm+keNg4EvkofM2B8n2TJHQGq4n2EEfGH+g/Xr CkQumXMoR/agg== 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 Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Oleg Nesterov Subject: [PATCH V7 03/12] riscv: ptrace: Remove duplicate operation Date: Sat, 15 Oct 2022 07:46:53 -0400 Message-Id: <20221015114702.3489989-4-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20221015114702.3489989-1-guoren@kernel.org> References: <20221015114702.3489989-1-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?1746754264634282535?= X-GMAIL-MSGID: =?utf-8?q?1746754264634282535?= 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); Signed-off-by: Guo Ren Signed-off-by: Guo Ren Reviewed-by: Oleg Nesterov --- 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,