From 3b3a015ad4ab1ad0cf707ccbaef1dbe965993a4a Mon Sep 17 00:00:00 2001 From: Wolfgang Wiedmeyer Date: Fri, 23 Oct 2015 04:06:23 +0200 Subject: merged more uncritical stuff from 3.2.72 --- net/8021q/vlan.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'net/8021q/vlan.h') diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h index 9da07e3..9fd45f3 100644 --- a/net/8021q/vlan.h +++ b/net/8021q/vlan.h @@ -74,6 +74,37 @@ static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev) return netdev_priv(dev); } +static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, + u16 vlan_id) +{ + struct net_device **array; + array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; + return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL; +} + +static inline void vlan_group_set_device(struct vlan_group *vg, + u16 vlan_id, + struct net_device *dev) +{ + struct net_device **array; + if (!vg) + return; + array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; + array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; +} + +/* Must be invoked with rcu_read_lock or with RTNL. */ +static inline struct net_device *vlan_find_dev(struct net_device *real_dev, + u16 vlan_id) +{ + struct vlan_group *grp = rcu_dereference_rtnl(real_dev->vlgrp); + + if (grp) + return vlan_group_get_device(grp, vlan_id); + + return NULL; +} + /* found in vlan_dev.c */ void vlan_dev_set_ingress_priority(const struct net_device *dev, u32 skb_prio, u16 vlan_prio); -- cgit v1.1