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.
Cc: Boris Brezillon <bbrezillon@xxxxxxxxxx>
Cc: Arnaud Ebalard <arno@xxxxxxxxxxxx>
Cc: Srujana Challa <schalla@xxxxxxxxxxx>
Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx>
---
drivers/crypto/marvell/octeontx/otx_cptvf_algs.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c b/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c
index 90bb31329d4b..ec13bc3f1766 100644
--- a/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c
+++ b/drivers/crypto/marvell/octeontx/otx_cptvf_algs.c
@@ -340,11 +340,16 @@ static inline int cpt_enc_dec(struct skcipher_request *req, u32 enc)
{
struct crypto_skcipher *stfm = crypto_skcipher_reqtfm(req);
struct otx_cpt_req_ctx *rctx = skcipher_request_ctx(req);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(stfm);
+ struct otx_cpt_enc_ctx *ctx = crypto_tfm_ctx(tfm);
struct otx_cpt_req_info *req_info = &rctx->cpt_req;
u32 enc_iv_len = crypto_skcipher_ivsize(stfm);
struct pci_dev *pdev;
int status, cpu_num;
+ if (!req->cryptlen && ctx->cipher_type == OTX_CPT_AES_XTS)
+ return 0;
+
/* Validate that request doesn't exceed maximum CPT supported size */
if (req->cryptlen > OTX_CPT_MAX_REQ_SIZE)
return -E2BIG;
--
2.17.1
