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| author | Andrey Konovalov <andreyknvl@google.com> | 2022-09-05 23:05:32 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:59 -0700 |
| commit | be95e13fcc6ded156c65ece01486d9cc33d22dc8 (patch) | |
| tree | beece52c2b334bea14ffd970e38ec3c9f0b3608d /mm/kasan/kasan.h | |
| parent | 26f21f3ac76df6cf3b447e8231f8754991165475 (diff) | |
| download | linux-be95e13fcc6ded156c65ece01486d9cc33d22dc8.tar.gz linux-be95e13fcc6ded156c65ece01486d9cc33d22dc8.tar.bz2 linux-be95e13fcc6ded156c65ece01486d9cc33d22dc8.zip | |
kasan: only define metadata structs for Generic mode
Hide the definitions of kasan_alloc_meta and kasan_free_meta under an
ifdef CONFIG_KASAN_GENERIC check, as these structures are now only used
when the Generic mode is enabled.
Link: https://lkml.kernel.org/r/8d2aabff8c227c444a3f62edf87d5630beb77640.1662411799.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Peter Collingbourne <pcc@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 | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 6da35370ba37..cae60e4d8842 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -193,14 +193,12 @@ struct kasan_track { depot_stack_handle_t stack; }; +#ifdef CONFIG_KASAN_GENERIC + struct kasan_alloc_meta { struct kasan_track alloc_track; - /* Generic mode stores free track in kasan_free_meta. */ -#ifdef CONFIG_KASAN_GENERIC + /* Free track is stored in kasan_free_meta. */ depot_stack_handle_t aux_stack[2]; -#else - struct kasan_track free_track; -#endif }; struct qlist_node { @@ -219,12 +217,12 @@ struct qlist_node { * After that, slab allocator stores the freelist pointer in the object. */ struct kasan_free_meta { -#ifdef CONFIG_KASAN_GENERIC struct qlist_node quarantine_link; struct kasan_track free_track; -#endif }; +#endif /* CONFIG_KASAN_GENERIC */ + #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) /* Used in KUnit-compatible KASAN tests. */ struct kunit_kasan_status { |