diff options
Diffstat (limited to 'drivers/crypto/ccree')
| -rw-r--r-- | drivers/crypto/ccree/cc_buffer_mgr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/crypto/ccree/cc_buffer_mgr.c b/drivers/crypto/ccree/cc_buffer_mgr.c index b938ceae7ae7..885347b5b372 100644 --- a/drivers/crypto/ccree/cc_buffer_mgr.c +++ b/drivers/crypto/ccree/cc_buffer_mgr.c @@ -1109,9 +1109,11 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req) } size_to_map = req->cryptlen + areq_ctx->assoclen; - if (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_ENCRYPT) + /* If we do in-place encryption, we also need the auth tag */ + if ((areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_ENCRYPT) && + (req->src == req->dst)) { size_to_map += authsize; - + } if (is_gcm4543) size_to_map += crypto_aead_ivsize(tfm); rc = cc_map_sg(dev, req->src, size_to_map, DMA_BIDIRECTIONAL, |