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net: ip6_gre: Split up ip6gre_tnl_change()

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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.

Fixes: 5a963eb61b7c ("ip6_gre: Add ERSPAN native tunnel support")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-05-17 16:36:33 +02:00 committed by David S. Miller
parent a483373ead
commit a6465350ef
1 changed files with 8 additions and 2 deletions
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10
net/ipv6/ip6_gre.c
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@ -1112,8 +1112,8 @@ 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;
@ -1129,6 +1129,12 @@ 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;
}