Commit d2456c66 authored by Sebastian Siewior's avatar Sebastian Siewior Committed by Herbert Xu

[CRYPTO] geode: do not copy the IV too often

There is no reason to keep the IV in the private structre. Instead keep
just a pointer to make the patch smaller :)
This also remove a few memcpy()s
Signed-off-by: default avatarSebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 9617d6ef
......@@ -315,7 +315,7 @@ geode_cbc_decrypt(struct blkcipher_desc *desc,
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
memcpy(op->iv, walk.iv, AES_IV_LENGTH);
op->iv = walk.iv;
while((nbytes = walk.nbytes)) {
op->src = walk.src.virt.addr,
......@@ -330,7 +330,6 @@ geode_cbc_decrypt(struct blkcipher_desc *desc,
err = blkcipher_walk_done(desc, &walk, nbytes);
}
memcpy(walk.iv, op->iv, AES_IV_LENGTH);
return err;
}
......@@ -348,7 +347,7 @@ geode_cbc_encrypt(struct blkcipher_desc *desc,
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
memcpy(op->iv, walk.iv, AES_IV_LENGTH);
op->iv = walk.iv;
while((nbytes = walk.nbytes)) {
op->src = walk.src.virt.addr,
......@@ -362,7 +361,6 @@ geode_cbc_encrypt(struct blkcipher_desc *desc,
err = blkcipher_walk_done(desc, &walk, nbytes);
}
memcpy(walk.iv, op->iv, AES_IV_LENGTH);
return err;
}
......
......@@ -65,7 +65,7 @@ struct geode_aes_op {
int len;
u8 key[AES_KEY_LENGTH];
u8 iv[AES_IV_LENGTH];
u8 *iv;
union {
struct crypto_blkcipher *blk;
......
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