ptrace: remove redudant check of #ifdef PTRACE_SINGLESTEP

Patch series "ptrace: do some cleanup".

This patch (of 3):

PTRACE_SINGLESTEP is always defined as 9 in include/uapi/linux/ptrace.h,
remove redudant check of #ifdef PTRACE_SINGLESTEP.

Link: https://lkml.kernel.org/r/1649240981-11024-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index ccc4b465775b82b78267d6f96f56097c07eabd9c..49c29baf9907107256276e930fe24dd5598fb007 100644 (file)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -829,11 +829,7 @@ static long ptrace_get_rseq_configuration(struct task_struct *task,
 }
 #endif
 
-#ifdef PTRACE_SINGLESTEP
 #define is_singlestep(request)         ((request) == PTRACE_SINGLESTEP)
-#else
-#define is_singlestep(request)         0
-#endif
 
 #ifdef PTRACE_SINGLEBLOCK
 #define is_singleblock(request)                ((request) == PTRACE_SINGLEBLOCK)
@@ -1221,9 +1217,7 @@ int ptrace_request(struct task_struct *child, long request,
        }
 #endif
 
-#ifdef PTRACE_SINGLESTEP
        case PTRACE_SINGLESTEP:
-#endif
 #ifdef PTRACE_SINGLEBLOCK
        case PTRACE_SINGLEBLOCK:
 #endif