linux-kernel - [PATCH V2 1/3] riscv: ptrace: Remove duplicate operation

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Message-Id: <20220903162328.1952477-2-guoren@kernel.org>
Date:   Sat,  3 Sep 2022 12:23:25 -0400
From:   guoren@...nel.org
To:     oleg@...hat.com, vgupta@...nel.org, linux@...linux.org.uk,
        monstr@...str.eu, dinguyen@...nel.org, palmer@...belt.com,
        davem@...emloft.net, arnd@...db.de, shorne@...il.com,
        guoren@...nel.org
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-snps-arc@...ts.infradead.org, sparclinux@...r.kernel.org,
        openrisc@...ts.librecores.org, Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH V2 1/3] riscv: ptrace: Remove duplicate operation

From: Guo Ren <guoren@...ux.alibaba.com>

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 <guoren@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...nel.org>
Reviewed-by: Oleg Nesterov <oleg@...hat.com>
---
 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,
-- 
2.36.1