netdev - Re: [PATCH net-next V2 2/4] net/dst: Utility functions to build dst

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Date:   Wed, 24 Aug 2016 21:26:48 +0300
From:   Shmulik Ladkani <shmulik.ladkani@...il.com>
To:     Amir Vadai <amir@...ai.me>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Jiri Benc <jbenc@...hat.com>, Jiri Pirko <jiri@...lanox.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Tom Herbert <tom@...bertland.com>,
        Hadar Har-Zion <hadarh@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>
Subject: Re: [PATCH net-next V2 2/4] net/dst: Utility functions to build
 dst_metadata without supplying an skb

Hi,

On Wed, 24 Aug 2016 15:27:08 +0300 Amir Vadai <amir@...ai.me> wrote:
> +static inline struct metadata_dst *
> +_ipv6_tun_rx_dst(struct in6_addr saddr, struct in6_addr daddr,
> +		 __u8 tos, __u8 ttl, __be32 label,
> +		 __be16 flags, __be64 tunnel_id, int md_size)
> +{

Prefer 'const struct in6_addr *saddr' parameter (daddr too).

This is aligned with almost all functions having an 'in6_addr' as a
parameter, to prevent the costy argument copy.