riscv: ptrace: Remove duplicate operation

guoren83 · palmer-dabbelt · commit 8574bf8d0ddd · 2023-03-23T08:46:58.000-07:00
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> Link: https://lore.kernel.org/r/20230222033021.983168-3-guoren@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
diff --git 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,

Original file line number	Diff line number	Diff line change
`@@ -212,7 +212,6 @@ unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n)`
`212`	`212`
`213`	`213`	`void ptrace_disable(struct task_struct *child)`
`214`	`214`	`{`
`215`		`- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);`
`216`	`215`	`}`
`217`	`216`
`218`	`217`	`long arch_ptrace(struct task_struct *child, long request,`