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net: vlan, qlcnic: make vlan_find_dev private

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there is only one user of vlan_find_dev outside of the actual vlan code:
qlcnic uses it to iterate over some VLANs it knows.

let's just make vlan_find_dev private to the VLAN code and have the
iteration in qlcnic be a bit more direct. (a few rcu dereferences less
too)

Signed-off-by: David Lamparter <equinox@diac24.net>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Amit Kumar Salecha <amit.salecha@qlogic.com>
Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Cc: linux-driver@qlogic.com
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Lamparter 2011-07-17 08:53:12 +00:00 committed by David S. Miller
parent 178edcbc6b
commit 69ecca86da
3 changed files with 18 additions and 12 deletions
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7
drivers/net/qlcnic/qlcnic_main.c
View File

@ -4198,13 +4198,18 @@ static void
qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct vlan_group *grp;
struct net_device *dev;
u16 vid;
qlcnic_config_indev_addr(adapter, netdev, event);
grp = rcu_dereference_rtnl(netdev->vlgrp);
if (!grp)
return;
for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
dev = vlan_find_dev(netdev, vid);
dev = vlan_group_get_device(grp, vid);
if (!dev)
continue;
qlcnic_config_indev_addr(adapter, dev, event);

11
include/linux/if_vlan.h
View File

@ -119,17 +119,6 @@ static inline int is_vlan_dev(struct net_device *dev)
#define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT)
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
/* 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;
}
extern struct net_device *vlan_dev_real_dev(const struct net_device *dev);
extern u16 vlan_dev_vlan_id(const struct net_device *dev);

12
net/8021q/vlan.h
View File

@ -74,6 +74,18 @@ static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
return netdev_priv(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);