From: Andrei Botila <andrei.botila@xxxxxxx> Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero. Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx> --- drivers/crypto/hisilicon/sec/sec_algs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/hisilicon/sec/sec_algs.c b/drivers/crypto/hisilicon/sec/sec_algs.c index 8ca945ac297e..419ec4f23164 100644 --- a/drivers/crypto/hisilicon/sec/sec_algs.c +++ b/drivers/crypto/hisilicon/sec/sec_algs.c @@ -723,6 +723,10 @@ static int sec_alg_skcipher_crypto(struct skcipher_request *skreq, bool split = skreq->src != skreq->dst; gfp_t gfp = skreq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC; + if (!skreq->cryptlen && (ctx->cipher_alg == SEC_C_AES_XTS_128 || + ctx->cipher_alg == SEC_C_AES_XTS_256)) + return 0; + mutex_init(&sec_req->lock); sec_req->req_base = &skreq->base; sec_req->err = 0; -- 2.17.1
