From patchwork Sun Sep 18 15:52:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 12979520 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 5729FC54EE9 for ; Sun, 18 Sep 2022 15:53:25 +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=Kk9CMgGG3uoKF5XXw1QN56Li+fkqrYGc32kw0Ahc84I=; b=h7gqJy5NzQDyWX YuFrHE0EZfWd0NisBr4/URgWy6w+xqwMCPII+a2h+5msgIo078Ed4yuq7snLzZgjhhzuOwhpx8G/9 +Nmd80iKQ7ZcOYTC1yt9ZfH6YlcpvJJNjeEJq9C0XJFO5KBqebvQnmzAgJfuStvkaq8QfzhThVGct sOaNAH/BiEfhJzAZFdUd7euJ5XDKV48zhpg9XLtwS/CD/c4H6ZSLLHMl1V+Khw1zD9LbSVgXA9P9q tJWSdwtMCH4u1742atH403whvZyTldMPXJNdGaxBIiqvkMhxCdYKKobe1KbvXNRqX0MF8Sl15ikSN pGzhz/o46qBo5eGjAIdA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZwbc-000Fux-RN; Sun, 18 Sep 2022 15:53:16 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZwba-000FsE-HF for linux-riscv@lists.infradead.org; Sun, 18 Sep 2022 15:53:15 +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 246DE6159F; Sun, 18 Sep 2022 15:53:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3E1EC433C1; Sun, 18 Sep 2022 15:53:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663516393; bh=thj4lp5B0J2/kj7Zi1BMTTtT9fAnJMteMKwuLQ0ArOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mp7BlbjzUw36r3YuqTbkzw+SOlYKh7mqfoXpknmIExjZDVsijot6rAtuC9evooQZj /p13eAsGcsRWG92RwXySHI9j/eFXOsKuBmrVHVevci3nJA9crQ3OhApl97OPUuxZFr l7vEyDT813DvqulOsSeCt+javi8dQW39+y3W01/nAhPgIge2Q8dPZFDVzDF7GDa2tM m7bjdj+Ta1a+d0055JfhL+yFs4CJAvgOzQ3UvNqcO6/+5BWaFvCV3QxM1xiVmBj6fC pfwEEpq3VQ1nGfrChnrnBAYTHqAfyOp9QsYPo1fFi5l9JN8bs0GjgbB+DGdUR/5efp DgZ0IojzU/fqg== 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 Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Oleg Nesterov Subject: [PATCH V5 03/11] riscv: ptrace: Remove duplicate operation Date: Sun, 18 Sep 2022 11:52:38 -0400 Message-Id: <20220918155246.1203293-4-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220918155246.1203293-1-guoren@kernel.org> References: <20220918155246.1203293-1-guoren@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220918_085314_645470_18726EB9 X-CRM114-Status: UNSURE ( 9.05 ) 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.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,