netdev - Re: [PATCH net-next] net: ipv4: add support for ECMP hash policy choice

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Message-ID: <bbdd46d3-7981-9718-7a93-249eacbe1a3b@cumulusnetworks.com>
Date:   Mon, 6 Mar 2017 09:24:37 -0700
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
        netdev@...r.kernel.org
Cc:     edumazet@...gle.com, davem@...emloft.net, roopa@...ulusnetworks.com
Subject: Re: [PATCH net-next] net: ipv4: add support for ECMP hash policy
 choice

On 3/6/17 7:59 AM, Nikolay Aleksandrov wrote:
> diff --git a/include/net/route.h b/include/net/route.h
> index c0874c87c173..77a5c613a290 100644
> --- a/include/net/route.h
> +++ b/include/net/route.h
> @@ -113,13 +113,12 @@ struct in_device;
>  int ip_rt_init(void);
>  void rt_cache_flush(struct net *net);
>  void rt_flush_dev(struct net_device *dev);
> -struct rtable *__ip_route_output_key_hash(struct net *, struct flowi4 *flp,
> -					  int mp_hash);
> +struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *flp);
>  
>  static inline struct rtable *__ip_route_output_key(struct net *net,
>  						   struct flowi4 *flp)
>  {
> -	return __ip_route_output_key_hash(net, flp, -1);
> +	return __ip_route_output_key_hash(net, flp);
>  }
>  
>  struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp,

The "_hash" variant was added by 79a131592dbb8. If the mp_hash arg is
removed, the "_hash" wrapper should be removed and go back to
__ip_route_output_key.