From patchwork Thu Dec 8 02:58:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 13067841 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E107BC4708E for ; Thu, 8 Dec 2022 02:59:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=e3Xd+zXPe73/b0PKTcyAVkUQRL7WY8YAXJ5MVv0fExc=; b=XpD9ZT2SYfhNOe jMqJm4fC2CgdH13vU7qiwq0yyQ6WkiYfCEWbrIxy7DBT5wsnoe1H8eKAjohvGVuWhT7sRRVD8sOhN BVxzIHkS2rQh34PxIWgh4J2sV8+4nSu0RxxLmSpp/8uKShtku5Dwaud7EsCbvSGQCLGTa/vIIw4jO p1P6OYhe+588J2WN/e8cCSseOasxGVBSb5e4DYkw08gfmvHxzhJ+FvuJvposgvrYzVQrPr3kP/v7E kjQAHdgLxo7TzDrwvRtPUFGYKnbUD0v7PFOqnOxzg3EStsTVPjAVwSIhb3DrYrDFz7dw8VVBFWOTi FwDt/+lL/35Ztg8eudtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p377e-000cDJ-QY; Thu, 08 Dec 2022 02:58:54 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p377c-000cBd-SA for linux-riscv@lists.infradead.org; Thu, 08 Dec 2022 02:58:54 +0000 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 dfw.source.kernel.org (Postfix) with ESMTPS id 7487761D12; Thu, 8 Dec 2022 02:58:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11F3DC433D6; Thu, 8 Dec 2022 02:58:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670468332; bh=fcNRUbmbqoevqmCMcSREDYQEKvN34Jrs3zIaqY83b2c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WtpQyaZrIX7BpMrkVOUXb/dLH5wHwvILNQj0ZNeWEX0WewbK+GV5442bXm4HSlPVp j+O8Y1A8H+fZoo33jkGT2r00z28ARK2VLMsoxFG0y/yzotwqtNDkb+DCvParqVcdlk IbNcT7yi/xMmgX53+iM28lxkHBJC+BQAWQNdE51zozEG1Dqp2Mj7h+gQkYgMC0OWWD m6+OqvYmeryTZGst96He3ibVPNOe65KfsEpmV10hABtqDFYMIY0KuAqNFbwy/srBC9 CM5by982YMKshTMtpVvAOCYZi2mVVj8S6oJuOhRQP1zhJDlLkBcaa9UgjoLKDy0sfS 7TKOsxhAbiXHA== 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, bjorn@kernel.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Oleg Nesterov Subject: [PATCH -next V10 02/10] riscv: ptrace: Remove duplicate operation Date: Wed, 7 Dec 2022 21:58:08 -0500 Message-Id: <20221208025816.138712-3-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20221208025816.138712-1-guoren@kernel.org> References: <20221208025816.138712-1-guoren@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221207_185852_992288_C0FBAC9D X-CRM114-Status: UNSURE ( 8.34 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Guo Ren The TIF_SYSCALL_TRACE is controlled by a common code, see kernel/ptrace.c and include/linux/thread_info.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,