netdev - Re: [PATCH net 4/7] net: ip6_gre: Split up ip6gre_tnl

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Message-ID: <CALDO+SYhfiVT+xb_ZqYhshZ1crCEpzt7za59a4-GFpE2SndU4Q@mail.gmail.com>
Date:   Thu, 17 May 2018 12:45:58 -0700
From:   William Tu <u9012063@...il.com>
To:     Petr Machata <petrm@...lanox.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Dmitry Kozlov <xeb@...l.ru>
Subject: Re: [PATCH net 4/7] net: ip6_gre: Split up ip6gre_tnl_change()

On Thu, May 17, 2018 at 7:36 AM, Petr Machata <petrm@...lanox.com> wrote:
> Split a reusable function ip6gre_tnl_copy_tnl_parm() from
> ip6gre_tnl_change(). This will allow ERSPAN-specific code to
> reuse the common parts while customizing the behavior for ERSPAN.
>
> Signed-off-by: Petr Machata <petrm@...lanox.com>
> ---

LGTM.
Acked-by: William Tu <u9012063@...il.com>


>  net/ipv6/ip6_gre.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
> index 78ba6b9..307ac6d 100644
> --- a/net/ipv6/ip6_gre.c
> +++ b/net/ipv6/ip6_gre.c
> @@ -1109,8 +1109,8 @@ static void ip6gre_tnl_link_config(struct ip6_tnl *t, int set_mtu)
>         ip6gre_tnl_link_config_route(t, set_mtu, ip6gre_calc_hlen(t));
>  }
>
> -static int ip6gre_tnl_change(struct ip6_tnl *t,
> -       const struct __ip6_tnl_parm *p, int set_mtu)
> +static void ip6gre_tnl_copy_tnl_parm(struct ip6_tnl *t,
> +                                    const struct __ip6_tnl_parm *p)
>  {
>         t->parms.laddr = p->laddr;
>         t->parms.raddr = p->raddr;
> @@ -1126,6 +1126,12 @@ static int ip6gre_tnl_change(struct ip6_tnl *t,
>         t->parms.o_flags = p->o_flags;
>         t->parms.fwmark = p->fwmark;
>         dst_cache_reset(&t->dst_cache);
> +}
> +
> +static int ip6gre_tnl_change(struct ip6_tnl *t, const struct __ip6_tnl_parm *p,
> +                            int set_mtu)
> +{
> +       ip6gre_tnl_copy_tnl_parm(t, p);
>         ip6gre_tnl_link_config(t, set_mtu);
>         return 0;
>  }
> --
> 2.4.11
>