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| author | Mike Rapoport <mike.rapoport@ravellosystems.com> | 2013-06-25 16:01:52 +0300 |
|---|---|---|
| committer | Stephen Hemminger <stephen@networkplumber.org> | 2013-06-25 09:31:36 -0700 |
| commit | a5e7c10a7ec244f272703f36f339c967efe1fc0d (patch) | |
| tree | 43eee04be4e76ae1a8608976bc292e645b18a979 /drivers/net/vxlan.c | |
| parent | afbd8bae9c798c5cdbe4439d3a50536b5438247c (diff) | |
| download | lwn-a5e7c10a7ec244f272703f36f339c967efe1fc0d.tar.gz lwn-a5e7c10a7ec244f272703f36f339c967efe1fc0d.zip | |
vxlan: introduce vxlan_fdb_find_rdst
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>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index bdfe46e50c49..306bd94efa89 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -388,21 +388,34 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan, return f; } -/* Add/update destinations for multicast */ -static int vxlan_fdb_append(struct vxlan_fdb *f, - __be32 ip, __be16 port, __u32 vni, __u32 ifindex) +/* 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; - /* 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; + 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; + + rd = vxlan_fdb_find_rdst(f, ip, port, vni, ifindex); + if (rd) + return 0; + rd = kmalloc(sizeof(*rd), GFP_ATOMIC); if (rd == NULL) return -ENOBUFS; |