Commit 6db7412c authored by Muhammad Usama Anjum's avatar Muhammad Usama Anjum Committed by Andrew Morton

selftests: mm: fix unused and uninitialized variable warning

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: fc4d1823 ("mm: huge_memory: enable debugfs to split huge pages to any order")
Signed-off-by: default avatarMuhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: default avatarZi 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: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 80921623
...@@ -300,7 +300,7 @@ int create_pagecache_thp_and_fd(const char *testfile, size_t fd_size, int *fd, ...@@ -300,7 +300,7 @@ int create_pagecache_thp_and_fd(const char *testfile, size_t fd_size, int *fd,
char **addr) char **addr)
{ {
size_t i; size_t i;
int dummy; int __attribute__((unused)) dummy = 0;
srand(time(NULL)); srand(time(NULL));
......
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