CFB mode should be treated as a stream cipher, not block. Fixes: 63b945091a07 ('crypto: ccp - CCP device driver and interface support') Signed-off-by: Gary R Hook <gary.hook@xxxxxxx> --- drivers/crypto/ccp/ccp-ops.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c index 267a367bd076..3ecadeab919c 100644 --- a/drivers/crypto/ccp/ccp-ops.c +++ b/drivers/crypto/ccp/ccp-ops.c @@ -1,7 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * AMD Cryptographic Coprocessor (CCP) driver * - * Copyright (C) 2013,2018 Advanced Micro Devices, Inc. + * Copyright (C) 2013-2019 Advanced Micro Devices, Inc. * * Author: Tom Lendacky <thomas.lendacky@xxxxxxx> * Author: Gary R Hook <gary.hook@xxxxxxx> @@ -893,8 +894,7 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) return -EINVAL; if (((aes->mode == CCP_AES_MODE_ECB) || - (aes->mode == CCP_AES_MODE_CBC) || - (aes->mode == CCP_AES_MODE_CFB)) && + (aes->mode == CCP_AES_MODE_CBC)) && (aes->src_len & (AES_BLOCK_SIZE - 1))) return -EINVAL;