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ipv6: Move common init code for rt6_info to a new function rt6_info_init() 

Introduce rt6_info_init() to do the common init work for
'struct rt6_info' (after calling dst_alloc).

It is a prep work to fix the rt6_info init logic in the
ip6_blackhole_route().

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin KaFai Lau 2015-10-15 16:39:57 -07:00 committed by David S. Miller
parent 53ca376eec
commit ebfa45f0d9
1 changed files with 11 additions and 6 deletions
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17
net/ipv6/route.c
View File

@ -319,6 +319,15 @@ static const struct rt6_info ip6_blk_hole_entry_template = {
#endif
static void rt6_info_init(struct rt6_info *rt)
{
struct dst_entry *dst = &rt->dst;
memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
INIT_LIST_HEAD(&rt->rt6i_siblings);
INIT_LIST_HEAD(&rt->rt6i_uncached);
}
/* allocate dst with ip6_dst_ops */
static struct rt6_info *__ip6_dst_alloc(struct net *net,
struct net_device *dev,
@ -327,13 +336,9 @@ static struct rt6_info *__ip6_dst_alloc(struct net *net,
struct rt6_info *rt = dst_alloc(&net->ipv6.ip6_dst_ops, dev,
0, DST_OBSOLETE_FORCE_CHK, flags);
if (rt) {
struct dst_entry *dst = &rt->dst;
if (rt)
rt6_info_init(rt);
memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
INIT_LIST_HEAD(&rt->rt6i_siblings);
INIT_LIST_HEAD(&rt->rt6i_uncached);
}
return rt;
}