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authorAndrey Konovalov <andreyknvl@google.com>2018-12-28 00:30:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 12:11:43 -0800
commit9577dd7486487722ed8f0773243223f108e8089f (patch)
treef45461ff3b8ddc4f5a933007b341365609706c4d /include/linux/kasan.h
parentkasan, arm64: adjust shadow size for tag-based mode (diff)
downloadwireguard-linux-9577dd7486487722ed8f0773243223f108e8089f.tar.xz
wireguard-linux-9577dd7486487722ed8f0773243223f108e8089f.zip
kasan: rename kasan_zero_page to kasan_early_shadow_page
With tag based KASAN mode the early shadow value is 0xff and not 0x00, so this patch renames kasan_zero_(page|pte|pmd|pud|p4d) to kasan_early_shadow_(page|pte|pmd|pud|p4d) to avoid confusion. Link: http://lkml.kernel.org/r/3fed313280ebf4f88645f5b89ccbc066d320e177.1544099024.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Suggested-by: Mark Rutland <mark.rutland@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Christoph Lameter <cl@linux.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kasan.h')
-rw-r--r--include/linux/kasan.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index b66fdf5ea7ab..ec22d548d0d7 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -14,13 +14,13 @@ struct task_struct;
#include <asm/kasan.h>
#include <asm/pgtable.h>
-extern unsigned char kasan_zero_page[PAGE_SIZE];
-extern pte_t kasan_zero_pte[PTRS_PER_PTE];
-extern pmd_t kasan_zero_pmd[PTRS_PER_PMD];
-extern pud_t kasan_zero_pud[PTRS_PER_PUD];
-extern p4d_t kasan_zero_p4d[MAX_PTRS_PER_P4D];
+extern unsigned char kasan_early_shadow_page[PAGE_SIZE];
+extern pte_t kasan_early_shadow_pte[PTRS_PER_PTE];
+extern pmd_t kasan_early_shadow_pmd[PTRS_PER_PMD];
+extern pud_t kasan_early_shadow_pud[PTRS_PER_PUD];
+extern p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D];
-int kasan_populate_zero_shadow(const void *shadow_start,
+int kasan_populate_early_shadow(const void *shadow_start,
const void *shadow_end);
static inline void *kasan_mem_to_shadow(const void *addr)