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,
        mark.rutland@arm.com, ben@decadent.org.uk, bjorn@kernel.org,
        palmer@dabbelt.com
Cc:     linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-riscv@lists.infradead.org,
        Guo Ren <guoren@linux.alibaba.com>,
        Oleg Nesterov <oleg@redhat.com>,
        =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn@rivosinc.com>
Subject: [PATCH -next V17 2/7] riscv: ptrace: Remove duplicate operation
Date:   Tue, 21 Feb 2023 22:30:16 -0500
Message-Id: <20230222033021.983168-3-guoren@kernel.org>
In-Reply-To: <20230222033021.983168-1-guoren@kernel.org>
References: <20230222033021.983168-1-guoren@kernel.org>
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From: Guo Ren <guoren@linux.alibaba.com>

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 <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.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