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vxlan: Insert FDB into hash table in vxlan_fdb_create()

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Commit 7c31e54aee ("vxlan: do not destroy fdb if register_netdevice()
is failed") split the insertion of FDB entries into the FDB hash table
from the function where they are created.

This was done in order to work around a problem that is no longer
possible after the previous patch. Simplify the code and move the body
of vxlan_fdb_insert() back into vxlan_fdb_create().

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250415121143.345227-4-idosch@nvidia.com
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Ido Schimmel 2025-04-15 15:11:31 +03:00 committed by Paolo Abeni
parent 884dd448f1
commit 69281e0fe1
1 changed files with 4 additions and 11 deletions
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15
drivers/net/vxlan/vxlan_core.c
View File

@ -816,14 +816,6 @@ static struct vxlan_fdb *vxlan_fdb_alloc(struct vxlan_dev *vxlan, const u8 *mac,
return f;
}
static void vxlan_fdb_insert(struct vxlan_dev *vxlan, const u8 *mac,
__be32 src_vni, struct vxlan_fdb *f)
{
++vxlan->addrcnt;
hlist_add_head_rcu(&f->hlist,
vxlan_fdb_head(vxlan, mac, src_vni));
}
static int vxlan_fdb_nh_update(struct vxlan_dev *vxlan, struct vxlan_fdb *fdb,
u32 nhid, struct netlink_ext_ack *extack)
{
@ -913,6 +905,10 @@ int vxlan_fdb_create(struct vxlan_dev *vxlan,
if (rc < 0)
goto errout;
++vxlan->addrcnt;
hlist_add_head_rcu(&f->hlist,
vxlan_fdb_head(vxlan, mac, src_vni));
*fdb = f;
return 0;
@ -1101,7 +1097,6 @@ static int vxlan_fdb_update_create(struct vxlan_dev *vxlan,
if (rc < 0)
return rc;
vxlan_fdb_insert(vxlan, mac, src_vni, f);
rc = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_NEWNEIGH,
swdev_notify, extack);
if (rc)
@ -3994,8 +3989,6 @@ static int __vxlan_dev_create(struct net *net, struct net_device *dev,
}
if (f) {
vxlan_fdb_insert(vxlan, all_zeros_mac, dst->remote_vni, f);
/* notify default fdb entry */
err = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f),
RTM_NEWNEIGH, true, extack);