Messages in this thread Patch in this message | | | From | Geliang Tang <> | Subject | [PATCH] crypto: padlock-aes - use offset_in_page macro | Date | Sat, 21 Nov 2015 22:24:11 +0800 |
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Use offset_in_page macro instead of (addr & ~PAGE_MASK).
Signed-off-by: Geliang Tang <geliangtang@163.com> --- drivers/crypto/padlock-aes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index da2d677..be2dd10 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -238,7 +238,7 @@ static inline void ecb_crypt(const u8 *in, u8 *out, u32 *key, /* Padlock in ECB mode fetches at least ecb_fetch_bytes of data. * We could avoid some copying here but it's probably not worth it. */ - if (unlikely(((unsigned long)in & ~PAGE_MASK) + ecb_fetch_bytes > PAGE_SIZE)) { + if (unlikely(offset_in_page(in) + ecb_fetch_bytes > PAGE_SIZE)) { ecb_crypt_copy(in, out, key, cword, count); return; } @@ -250,7 +250,7 @@ static inline u8 *cbc_crypt(const u8 *in, u8 *out, u32 *key, u8 *iv, struct cword *cword, int count) { /* Padlock in CBC mode fetches at least cbc_fetch_bytes of data. */ - if (unlikely(((unsigned long)in & ~PAGE_MASK) + cbc_fetch_bytes > PAGE_SIZE)) + if (unlikely(offset_in_page(in) + cbc_fetch_bytes > PAGE_SIZE)) return cbc_crypt_copy(in, out, key, iv, cword, count); return rep_xcrypt_cbc(in, out, key, iv, cword, count); -- 2.5.0
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