From: Damian Nowak <damianx.nowak@intel.com>
Date: Fri, 9 Aug 2019 09:29:01 +0000 (+0200)
Subject: crypto/qat: fix null auth when using VFIO
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=65beb9abca6d;p=dpdk.git

crypto/qat: fix null auth when using VFIO

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 ("crypto/qat: fix null auth algo overwrite")
Cc: stable@dpdk.org

Signed-off-by: Damian Nowak <damianx.nowak@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
---

diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
index 5ff4aa1e5a..5c9904cbf9 100644
--- a/drivers/crypto/qat/qat_sym.c
+++ b/drivers/crypto/qat/qat_sym.c
@@ -309,9 +309,8 @@ qat_sym_build_request(void *in_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;
 
 	}