The patch titled
Subject: userfaultfd/selftests: fix uninitialized_var.cocci warning
has been added to the -mm tree. Its filename is
userfaultfd-selftests-fix-uninitialized_varcocci-warning.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/userfaultfd-selftests-fix-uninitialized_varcocci-warning.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/userfaultfd-selftests-fix-uninitialized_varcocci-warning.patch
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------------------------------------------------------
From: Guo Zhengkui <guozhengkui@xxxxxxxx>
Subject: userfaultfd/selftests: fix uninitialized_var.cocci warning
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@xxxxxxxxx/ And there is
very few "/* GCC */" comments in the Linux kernel code now.
Link: https://lkml.kernel.org/r/20220304082333.9252-1-guozhengkui@xxxxxxxx
Signed-off-by: Guo Zhengkui <guozhengkui@xxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/vm/userfaultfd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftests-fix-uninitialized_varcocci-warning
+++ a/tools/testing/selftests/vm/userfaultfd.c
@@ -540,7 +540,7 @@ static void continue_range(int ufd, __u6
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)) {
_
Patches currently in -mm which might be from guozhengkui@xxxxxxxx are
userfaultfd-selftests-fix-uninitialized_varcocci-warning.patch
