diff options
Diffstat (limited to 'mm/kasan/kasan.c')
| -rw-r--r-- | mm/kasan/kasan.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index 509974a1911e..ca11bc4ce205 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -160,7 +160,7 @@ static __always_inline bool memory_is_poisoned_16(unsigned long addr) return *shadow_addr; } -static __always_inline unsigned long bytes_is_zero(const u8 *start, +static __always_inline unsigned long bytes_is_nonzero(const u8 *start, size_t size) { while (size) { @@ -173,7 +173,7 @@ static __always_inline unsigned long bytes_is_zero(const u8 *start, return 0; } -static __always_inline unsigned long memory_is_zero(const void *start, +static __always_inline unsigned long memory_is_nonzero(const void *start, const void *end) { unsigned int words; @@ -181,11 +181,11 @@ static __always_inline unsigned long memory_is_zero(const void *start, unsigned int prefix = (unsigned long)start % 8; if (end - start <= 16) - return bytes_is_zero(start, end - start); + return bytes_is_nonzero(start, end - start); if (prefix) { prefix = 8 - prefix; - ret = bytes_is_zero(start, prefix); + ret = bytes_is_nonzero(start, prefix); if (unlikely(ret)) return ret; start += prefix; @@ -194,12 +194,12 @@ static __always_inline unsigned long memory_is_zero(const void *start, words = (end - start) / 8; while (words) { if (unlikely(*(u64 *)start)) - return bytes_is_zero(start, 8); + return bytes_is_nonzero(start, 8); start += 8; words--; } - return bytes_is_zero(start, (end - start) % 8); + return bytes_is_nonzero(start, (end - start) % 8); } static __always_inline bool memory_is_poisoned_n(unsigned long addr, @@ -207,7 +207,7 @@ static __always_inline bool memory_is_poisoned_n(unsigned long addr, { unsigned long ret; - ret = memory_is_zero(kasan_mem_to_shadow((void *)addr), + ret = memory_is_nonzero(kasan_mem_to_shadow((void *)addr), kasan_mem_to_shadow((void *)addr + size - 1) + 1); if (unlikely(ret)) { |