[dpdk-stable] [PATCH 17.11] crypto/qat: fix null auth issues when using vfio_pci

[Arek Kusztal]

[ upstream commit 65beb9abca6dbb2167a53ab31d79e03f0857357b ]

When running auth NULL cases while using vfio_pci,
DMAR read/write faults appear. It happens even if
digest_length is set to 0. This is caused by auth_res_addr
initialized as 0x0.

Fixes: 4e0955bddb08
Cc: stable at dpdk.org

Signed-off-by: Damian Nowak <damianx.nowak at intel.com>
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
---
 drivers/crypto/qat/qat_crypto.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 85a9ba0..05b37e6 100644
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -1370,10 +1370,8 @@ qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg,
 
 		}
 		min_ofs = auth_ofs;
-
-		if (likely(ctx->qat_hash_alg != ICP_QAT_HW_AUTH_ALGO_NULL))
-			auth_param->auth_res_addr =
-					op->sym->auth.digest.phys_addr;
+		auth_param->auth_res_addr =
+			op->sym->auth.digest.phys_addr;
 
 	}
 
-- 
2.1.0