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| author | Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> | 2021-06-28 19:40:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 10:53:53 -0700 |
| commit | a0503b8a0b3c8ef1be55744a248bffb8f533d227 (patch) | |
| tree | 26caaca60f9ce6d835ef206b775f76e8ca9fe053 /mm/kasan/hw_tags.c | |
| parent | f06f78ab48fb90cfbef5289e5556704b74c46b7a (diff) | |
| download | linux-a0503b8a0b3c8ef1be55744a248bffb8f533d227.tar.bz2 | |
kasan: integrate the common part of two KASAN tag-based modes
1. Move kasan_get_free_track() and kasan_set_free_info() into tags.c
and combine these two functions for SW_TAGS and HW_TAGS kasan mode.
2. Move kasan_get_bug_type() to report_tags.c and make this function
compatible for SW_TAGS and HW_TAGS kasan mode.
Link: https://lkml.kernel.org/r/20210626100931.22794-3-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Suggested-by: Marco Elver <elver@google.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan/hw_tags.c')
| -rw-r--r-- | mm/kasan/hw_tags.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c index 4004388b4e4b..d867b22ddbb7 100644 --- a/mm/kasan/hw_tags.c +++ b/mm/kasan/hw_tags.c @@ -216,28 +216,6 @@ void __init kasan_init_hw_tags(void) pr_info("KernelAddressSanitizer initialized\n"); } -void kasan_set_free_info(struct kmem_cache *cache, - void *object, u8 tag) -{ - struct kasan_alloc_meta *alloc_meta; - - alloc_meta = kasan_get_alloc_meta(cache, object); - if (alloc_meta) - kasan_set_track(&alloc_meta->free_track[0], GFP_NOWAIT); -} - -struct kasan_track *kasan_get_free_track(struct kmem_cache *cache, - void *object, u8 tag) -{ - struct kasan_alloc_meta *alloc_meta; - - alloc_meta = kasan_get_alloc_meta(cache, object); - if (!alloc_meta) - return NULL; - - return &alloc_meta->free_track[0]; -} - #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) void kasan_set_tagging_report_once(bool state) |