Subject: [PATCH] [crypto] s390 AES: Copy the IV back for chaining support

This is required for one or two crypto users in tree which
chain the IV.

Signed-off-by: Sebastian Siewior <[email protected]>
---
arch/s390/crypto/aes_s390.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 8524611..a2eae49 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -242,6 +242,9 @@ static int fallback_blk_dec(struct blkcipher_desc *desc,

ret = crypto_blkcipher_decrypt(desc, dst, src, nbytes);

+ memcpy(desc->info, crypto_blkcipher_crt(sctx->fallback.blk)->iv,
+ AES_BLOCK_SIZE);
+
desc->tfm = tfm;
return ret;
}
@@ -262,6 +265,9 @@ static int fallback_blk_enc(struct blkcipher_desc *desc,

ret = crypto_blkcipher_encrypt(desc, dst, src, nbytes);

+ memcpy(desc->info, crypto_blkcipher_crt(sctx->fallback.blk)->iv,
+ AES_BLOCK_SIZE);
+
desc->tfm = tfm;
return ret;
}
--
1.5.3.4