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vlan: Change vlan_dev_set_vlan_flag() to handle multiple flags at once 

Change vlan_dev_set_vlan_flag() to handle multiple flags at once and
rename to vlan_dev_change_flags(). This allows to to use it from the
netlink interface, which in turn allows to handle necessary adjustments
when changing flags centrally.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2008-07-05 21:26:27 -07:00 committed by David S. Miller
parent eca9ebac65
commit b3ce0325f2
4 changed files with 14 additions and 19 deletions
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6
net/8021q/vlan.c
View File

@ -591,9 +591,9 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
err = -EPERM;
if (!capable(CAP_NET_ADMIN))
break;
err = vlan_dev_set_vlan_flag(dev,
args.u.flag,
args.vlan_qos);
err = vlan_dev_change_flags(dev,
args.vlan_qos ? args.u.flag : 0,
args.u.flag);
break;
case SET_VLAN_NAME_TYPE_CMD:

3
net/8021q/vlan.h
View File

@ -28,8 +28,7 @@ void vlan_dev_set_ingress_priority(const struct net_device *dev,
u32 skb_prio, short vlan_prio);
int vlan_dev_set_egress_priority(const struct net_device *dev,
u32 skb_prio, short vlan_prio);
int vlan_dev_set_vlan_flag(const struct net_device *dev,
u32 flag, short flag_val);
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);
void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result);

20
net/8021q/vlan_dev.c
View File

@ -507,18 +507,16 @@ int vlan_dev_set_egress_priority(const struct net_device *dev,
}
/* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
int vlan_dev_set_vlan_flag(const struct net_device *dev,
u32 flag, short flag_val)
int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
{
/* verify flag is supported */
if (flag == VLAN_FLAG_REORDER_HDR) {
if (flag_val)
vlan_dev_info(dev)->flags |= VLAN_FLAG_REORDER_HDR;
else
vlan_dev_info(dev)->flags &= ~VLAN_FLAG_REORDER_HDR;
return 0;
}
return -EINVAL;
struct vlan_dev_info *vlan = vlan_dev_info(dev);
u32 old_flags = vlan->flags;
if (mask & ~VLAN_FLAG_REORDER_HDR)
return -EINVAL;
vlan->flags = (old_flags & ~mask) | (flags & mask);
return 0;
}
void vlan_dev_get_realdev_name(const struct net_device *dev, char *result)

4
net/8021q/vlan_netlink.c
View File

@ -75,7 +75,6 @@ static int vlan_validate(struct nlattr *tb[], struct nlattr *data[])
static int vlan_changelink(struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[])
{
struct vlan_dev_info *vlan = vlan_dev_info(dev);
struct ifla_vlan_flags *flags;
struct ifla_vlan_qos_mapping *m;
struct nlattr *attr;
@ -83,8 +82,7 @@ static int vlan_changelink(struct net_device *dev,
if (data[IFLA_VLAN_FLAGS]) {
flags = nla_data(data[IFLA_VLAN_FLAGS]);
vlan->flags = (vlan->flags & ~flags->mask) |
(flags->flags & flags->mask);
vlan_dev_change_flags(dev, flags->flags, flags->mask);
}
if (data[IFLA_VLAN_INGRESS_QOS]) {
nla_for_each_nested(attr, data[IFLA_VLAN_INGRESS_QOS], rem) {