crypto: algapi - use separate dst and src operands for __crypto_xor()

In preparation of introducing crypto_xor_cpy(), which will use separate
operands for input and output, modify the __crypto_xor() implementation,
which it will share with the existing crypto_xor(), which provides the
actual functionality when not using the inline version.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 436c4c2683c7..fd547f946bf8 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -192,7 +192,7 @@ static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
 }
 
 void crypto_inc(u8 *a, unsigned int size);
-void __crypto_xor(u8 *dst, const u8 *src, unsigned int size);
+void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int size);
 
 static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
 {
@@ -207,7 +207,7 @@ static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
                         size -= sizeof(unsigned long);
                 }
         } else {
-                __crypto_xor(dst, src, size);
+                __crypto_xor(dst, dst, src, size);
         }
 }