diff mbox series

userfaultfd/selftests: fix uninitialized_var.cocci warning

Message ID 20220304082333.9252-1-guozhengkui@vivo.com (mailing list archive)
State Accepted
Commit d794103d52739f8e27b69c4895dbf5a5a7a805cc
Headers show
Series userfaultfd/selftests: fix uninitialized_var.cocci warning | expand

Commit Message

Guo Zhengkui March 4, 2022, 8:23 a.m. UTC 
fix following coccicheck warning:
tools/testing/selftests/vm/userfaultfd.c:556:23-24:
WARNING this kind of initialization is deprecated

`unsigned long page_nr = *(&page_nr)` has the same form of
uninitialized_var() macro. I remove the redundant assignement. It has
been tested with gcc (Debian 8.3.0-6) 8.3.0.

The patch which removed uninitialized_var() is:
https://lore.kernel.org/all/20121028102007.GA7547@gmail.com/
And there is very few "/* GCC */" comments in the Linux kernel code now.

Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
---
 tools/testing/selftests/vm/userfaultfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index fe404398c65a..203c4a2c2109 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -553,7 +553,7 @@  static void continue_range(int ufd, __u64 start, __u64 len)
 static void *locking_thread(void *arg)
 {
 	unsigned long cpu = (unsigned long) arg;
-	unsigned long page_nr = *(&(page_nr)); /* uninitialized warning */
+	unsigned long page_nr;
 	unsigned long long count;
 
 	if (!(bounces & BOUNCE_RANDOM)) {