Fix the warnings by initializing and marking the variable as unused.
I've caught the warnings by using clang.
split_huge_page_test.c:303:6: warning: variable 'dummy' set but not used [-Wunused-but-set-variable]
303 | int dummy;
| ^
split_huge_page_test.c:343:3: warning: variable 'dummy' is uninitialized when used here [-Wuninitialized]
343 | dummy += *(*addr + i);
| ^~~~~
split_huge_page_test.c:303:11: note: initialize the variable 'dummy' to silence this warning
303 | int dummy;
| ^
| = 0
2 warnings generated.
Fixes: fc4d182316bd ("mm: huge_memory: enable debugfs to split huge pages to any order")
Signed-off-by: Muhammad Usama Anjum <[email protected]>
---
tools/testing/selftests/mm/split_huge_page_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/mm/split_huge_page_test.c b/tools/testing/selftests/mm/split_huge_page_test.c
index 6c988bd2f3356..d3c7f5fb3e7b7 100644
--- a/tools/testing/selftests/mm/split_huge_page_test.c
+++ b/tools/testing/selftests/mm/split_huge_page_test.c
@@ -300,7 +300,7 @@ int create_pagecache_thp_and_fd(const char *testfile, size_t fd_size, int *fd,
char **addr)
{
size_t i;
- int dummy;
+ int __attribute__((unused)) dummy = 0;
srand(time(NULL));
--
2.39.2
On 16 Apr 2024, at 12:26, Muhammad Usama Anjum wrote:
> Fix the warnings by initializing and marking the variable as unused.
> I've caught the warnings by using clang.
>
> split_huge_page_test.c:303:6: warning: variable 'dummy' set but not used [-Wunused-but-set-variable]
> 303 | int dummy;
> | ^
> split_huge_page_test.c:343:3: warning: variable 'dummy' is uninitialized when used here [-Wuninitialized]
> 343 | dummy += *(*addr + i);
> | ^~~~~
> split_huge_page_test.c:303:11: note: initialize the variable 'dummy' to silence this warning
> 303 | int dummy;
> | ^
> | = 0
> 2 warnings generated.
>
> Fixes: fc4d182316bd ("mm: huge_memory: enable debugfs to split huge pages to any order")
> Signed-off-by: Muhammad Usama Anjum <[email protected]>
> ---
> tools/testing/selftests/mm/split_huge_page_test.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
LGTM. Thanks. Reviewed-by: Zi Yan <[email protected]>
--
Best Regards,
Yan, Zi