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vxlan: introduce vxlan_fdb_find_rdst

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which will be reused by vxlan_fdb_delete

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Mike Rapoport 2013-06-25 16:01:52 +03:00 committed by Stephen Hemminger
parent afbd8bae9c
commit a5e7c10a7e
1 changed files with 21 additions and 8 deletions
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29
drivers/net/vxlan.c
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@ -388,20 +388,33 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
return f;
}
/* caller should hold vxlan->hash_lock */
static struct vxlan_rdst *vxlan_fdb_find_rdst(struct vxlan_fdb *f,
__be32 ip, __be16 port,
__u32 vni, __u32 ifindex)
{
struct vxlan_rdst *rd;
list_for_each_entry(rd, &f->remotes, list) {
if (rd->remote_ip == ip &&
rd->remote_port == port &&
rd->remote_vni == vni &&
rd->remote_ifindex == ifindex)
return rd;
}
return NULL;
}
/* Add/update destinations for multicast */
static int vxlan_fdb_append(struct vxlan_fdb *f,
__be32 ip, __be16 port, __u32 vni, __u32 ifindex)
{
struct vxlan_rdst *rd;
/* protected by vxlan->hash_lock */
list_for_each_entry(rd, &f->remotes, list) {
if (rd->remote_ip == ip &&
rd->remote_port == port &&
rd->remote_vni == vni &&
rd->remote_ifindex == ifindex)
return 0;
}
rd = vxlan_fdb_find_rdst(f, ip, port, vni, ifindex);
if (rd)
return 0;
rd = kmalloc(sizeof(*rd), GFP_ATOMIC);
if (rd == NULL)