diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2023-12-21 21:04:49 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-29 11:58:45 -0800 |
| commit | 58ee788cb23738abd57d6327d0b5096df5a53d31 (patch) | |
| tree | a7a05b6a5170f8dd56d047cbec0756e255f052ae /mm/kasan/kasan.h | |
| parent | 99f3fe416c71aa3d5aba69174c274309ededfd42 (diff) | |
kasan: respect CONFIG_KASAN_VMALLOC for kasan_flag_vmalloc
Never enable the kasan_flag_vmalloc static branch unless
CONFIG_KASAN_VMALLOC is enabled.
This does not fix any observable bugs (vmalloc annotations for the HW_TAGS
mode are no-op with CONFIG_KASAN_VMALLOC disabled) but rather just cleans
up the code.
Link: https://lkml.kernel.org/r/3e5c933c8f6b59bd587efb05c407964be951772c.1703188911.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/kasan/kasan.h')
| -rw-r--r-- | mm/kasan/kasan.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 5fbcc1b805bc..dee105ba32dd 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -49,6 +49,7 @@ DECLARE_PER_CPU(long, kasan_page_alloc_skip); static inline bool kasan_vmalloc_enabled(void) { + /* Static branch is never enabled with CONFIG_KASAN_VMALLOC disabled. */ return static_branch_likely(&kasan_flag_vmalloc); } |