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vlan: introduce vlan_dev_free_egress_priority

Browse source 
commit 37aa50c539bcbcc01767e515bd170787fcfc0f33 upstream.

This patch is to introduce vlan_dev_free_egress_priority() to
free egress priority for vlan dev, and keep vlan_dev_uninit()
static as .ndo_uninit. It makes the code more clear and safer
when adding new code in vlan_dev_uninit() in the future.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Signed-off-by: Ivan Delalande <colona@arista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xin Long 2022-02-09 03:19:55 -05:00 • committed by Greg Kroah-Hartman
commit b195d229de
3 changed files with 11 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/8021q/vlan.h
View file

@ -117,6 +117,7 @@ void vlan_dev_set_ingress_priority(const struct net_device *dev,
u32 skb_prio, u16 vlan_prio);
int vlan_dev_set_egress_priority(const struct net_device *dev,
u32 skb_prio, u16 vlan_prio);
void vlan_dev_free_egress_priority(const struct net_device *dev);
int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
@ -126,7 +127,6 @@ int vlan_check_real_dev(struct net_device *real_dev,
void vlan_setup(struct net_device *dev);
int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack);
void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
void vlan_dev_uninit(struct net_device *dev);
bool vlan_dev_inherit_address(struct net_device *dev,
struct net_device *real_dev);

7
net/8021q/vlan_dev.c
View file

@ -590,7 +590,7 @@ static int vlan_dev_init(struct net_device *dev)
}
/* Note: this function might be called multiple times for the same device. */
void vlan_dev_uninit(struct net_device *dev)
void vlan_dev_free_egress_priority(const struct net_device *dev)
{
struct vlan_priority_tci_mapping *pm;
struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
@ -604,6 +604,11 @@ void vlan_dev_uninit(struct net_device *dev)
}
}
static void vlan_dev_uninit(struct net_device *dev)
{
vlan_dev_free_egress_priority(dev);
}
static netdev_features_t vlan_dev_fix_features(struct net_device *dev,
netdev_features_t features)
{

7
net/8021q/vlan_netlink.c
View file

@ -187,10 +187,11 @@ static int vlan_newlink(struct net *src_net, struct net_device *dev,
return -EINVAL;
err = vlan_changelink(dev, tb, data, extack);
if (!err)
err = register_vlan_dev(dev, extack);
if (err)
vlan_dev_uninit(dev);
return err;
err = register_vlan_dev(dev, extack);
if (err)
vlan_dev_free_egress_priority(dev);
return err;
}