[dpdk-dev] [PATCH v2] net/ice: fix segmentation fault for RSS init

[Stillwell Jr, Paul M]

Disregard my previous email, I didn't see this one. See my comments inline.

Paul

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Simei Su
> Sent: Wednesday, November 6, 2019 12:26 AM
> To: Zhang, Qi Z <qi.z.zhang at intel.com>; Ye, Xiaolong <xiaolong.ye at intel.com>;
> Yang, Qiming <qiming.yang at intel.com>
> Cc: dev at dpdk.org; Su, Simei <simei.su at intel.com>
> Subject: [dpdk-dev] [PATCH v2] net/ice: fix segmentation fault for RSS init
> 
> This patch fixes core dump issue when entering safe mode with a wrong
> package file. This patch also fixes build failure issue.
> 
> Fixes: 5ad3db8d4bdd ("net/ice: enable advanced RSS")
> 
> Signed-off-by: Simei Su <simei.su at intel.com>
> ---
>  drivers/net/ice/ice_hash.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ice/ice_hash.c b/drivers/net/ice/ice_hash.c index
> 3381b45..08b2502 100644
> --- a/drivers/net/ice/ice_hash.c
> +++ b/drivers/net/ice/ice_hash.c
> @@ -236,12 +236,12 @@ struct ice_hash_match_type ice_hash_type_list[] = {
> static int  ice_hash_init(struct ice_adapter *ad)  {
> -	struct ice_flow_parser *parser = NULL;
> +	struct ice_flow_parser *parser;
> 
> -	if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
> -		parser = &ice_hash_parser_os;
> -	else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
> +	if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
>  		parser = &ice_hash_parser_comms;
> +	else
> +		parser = &ice_hash_parser_os;

This doesn't make sense to me. Why set up a parser at all if we are in safe mode? Safe mode means 1 queue so there isn't anything to RSS to. It seems like if we are in safe mode we should just return an error here with a message that we are in safe mode.

> 
>  	return ice_register_parser(parser, ad);  }
> --
> 1.8.3.1