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>
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index ab2225d..b591bfc 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -591,9 +591,9 @@
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:
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 5229a72..639e254 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -28,8 +28,7 @@
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);
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 5d055c2..76c665c 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -507,18 +507,16 @@
}
/* 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)
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index c93e69e..fd7cb19 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -75,7 +75,6 @@
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 @@
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) {