ptrace: remove PT_DTRACE from arch/m32r

m32r: PTRACE_SINGLESTEP sets PT_DTRACE, it is never used except cleared
after do_execve().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 3e876f0baebc..67a01e1e4283 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -302,11 +302,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
                 goto out;
 
         error = do_execve(filename, uargv, uenvp, &regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
         return error;