| Message ID | 20240416162658.3353622-1-usama.anjum@collabora.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | selftests: mm: fix unused and uninitialized variable warning | expand |
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 <usama.anjum@collabora.com> > --- > tools/testing/selftests/mm/split_huge_page_test.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > LGTM. Thanks. Reviewed-by: Zi Yan <ziy@nvidia.com> -- Best Regards, Yan, Zi
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));
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 <usama.anjum@collabora.com> --- tools/testing/selftests/mm/split_huge_page_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)