From: Muhammad Usama Anjum usama.anjum@collabora.com
mainline inclusion from mainline-v6.9-rc6 commit 6db7412c142006985a15765785cf6c0c0dd75374 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9OCYO CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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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.
Link: https://lkml.kernel.org/r/20240416162658.3353622-1-usama.anjum@collabora.com Fixes: fc4d182316bd ("mm: huge_memory: enable debugfs to split huge pages to any order") Signed-off-by: Muhammad Usama Anjum usama.anjum@collabora.com Reviewed-by: Zi Yan ziy@nvidia.com Cc: Bill Wendling morbo@google.com Cc: Justin Stitt justinstitt@google.com Cc: Muhammad Usama Anjum usama.anjum@collabora.com Cc: Nathan Chancellor nathan@kernel.org Cc: Nick Desaulniers ndesaulniers@google.com Cc: Shuah Khan shuah@kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Liu Shixin liushixin2@huawei.com --- 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 6c988bd2f335..d3c7f5fb3e7b 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));