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

[Luca Boccassi]

On Wed, 2020-01-08 at 16:33 +0100, Arek Kusztal wrote:
> [ 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;
>  
>  	}
>  

Thank you, applied with a small fix to the commit message (Fixes: line
and removed CC).

-- 
Kind regards,
Luca Boccassi