io_uring: don't attempt to copy iovec for READ/WRITE

[linux-2.6-microblaze.git] / crypto / salsa20_generic.c

diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c
index 00fce32..c81a444 100644 (file)
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -86,18 +86,17 @@ static void salsa20_docrypt(u32 *state, u8 *dst, const u8 *src,
 {
        __le32 stream[SALSA20_BLOCK_SIZE / sizeof(__le32)];
 
-       if (dst != src)
-               memcpy(dst, src, bytes);
-
        while (bytes >= SALSA20_BLOCK_SIZE) {
                salsa20_block(state, stream);
-               crypto_xor(dst, (const u8 *)stream, SALSA20_BLOCK_SIZE);
+               crypto_xor_cpy(dst, src, (const u8 *)stream,
+                              SALSA20_BLOCK_SIZE);
                bytes -= SALSA20_BLOCK_SIZE;
                dst += SALSA20_BLOCK_SIZE;
+               src += SALSA20_BLOCK_SIZE;
        }
        if (bytes) {
                salsa20_block(state, stream);
-               crypto_xor(dst, (const u8 *)stream, bytes);
+               crypto_xor_cpy(dst, src, (const u8 *)stream, bytes);
        }
 }
 
@@ -161,7 +160,7 @@ static int salsa20_crypt(struct skcipher_request *req)
 
        err = skcipher_walk_virt(&walk, req, false);
 
-       salsa20_init(state, ctx, walk.iv);
+       salsa20_init(state, ctx, req->iv);
 
        while (walk.nbytes > 0) {
                unsigned int nbytes = walk.nbytes;
@@ -204,7 +203,7 @@ static void __exit salsa20_generic_mod_fini(void)
        crypto_unregister_skcipher(&alg);
 }
 
-module_init(salsa20_generic_mod_init);
+subsys_initcall(salsa20_generic_mod_init);
 module_exit(salsa20_generic_mod_fini);
 
 MODULE_LICENSE("GPL");