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authorIvan Khoronzhuk <ivan.khoronzhuk@linaro.org>2018-11-08 22:27:55 +0200
committerDavid S. Miller <davem@davemloft.net>2018-11-08 20:30:58 -0800
commit960abf68d2023f0d0b08c6f5d05971630496cfb0 (patch)
tree25842b3d8f4e9a29ee448b5c9dee3317a7924575 /net
parente7946760de5852f32c4e52ce47f37e85346981b9 (diff)
net: 8021q: vlan_core: allow use list of vlans for real device
It's redundancy for the drivers to hold the list of vlans when absolutely the same list exists in vlan core. In most cases it's needed only to traverse the vlan devices, their vids and sync some settings with h/w, so add API to simplify this. At least some of these drivers also can benefit: grep "for_each.*vid" -r drivers/net/ethernet/ drivers/net/ethernet/hisilicon/hns3/hns3_enet.c: drivers/net/ethernet/synopsys/dwc-xlgmac-hw.c: drivers/net/ethernet/qlogic/qlge/qlge_main.c: drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c: drivers/net/ethernet/via/via-rhine.c: drivers/net/ethernet/via/via-velocity.c: drivers/net/ethernet/intel/igb/igb_main.c: drivers/net/ethernet/intel/ice/ice_main.c: drivers/net/ethernet/intel/e1000/e1000_main.c: drivers/net/ethernet/intel/i40e/i40e_main.c: drivers/net/ethernet/intel/e1000e/netdev.c: drivers/net/ethernet/intel/igbvf/netdev.c: drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: drivers/net/ethernet/intel/ixgb/ixgb_main.c: drivers/net/ethernet/intel/ixgbe/ixgbe_main.c: drivers/net/ethernet/amd/xgbe/xgbe-dev.c: drivers/net/ethernet/emulex/benet/be_main.c: drivers/net/ethernet/neterion/vxge/vxge-main.c: drivers/net/ethernet/adaptec/starfire.c: drivers/net/ethernet/brocade/bna/bnad.c: Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/8021q/vlan_core.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 4f60e86f4b8d..6308b5427a66 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -223,6 +223,33 @@ static int vlan_kill_rx_filter_info(struct net_device *dev, __be16 proto, u16 vi
return -ENODEV;
}
+int vlan_for_each(struct net_device *dev,
+ int (*action)(struct net_device *dev, int vid, void *arg),
+ void *arg)
+{
+ struct vlan_vid_info *vid_info;
+ struct vlan_info *vlan_info;
+ struct net_device *vdev;
+ int ret;
+
+ ASSERT_RTNL();
+
+ vlan_info = rtnl_dereference(dev->vlan_info);
+ if (!vlan_info)
+ return 0;
+
+ list_for_each_entry(vid_info, &vlan_info->vid_list, list) {
+ vdev = vlan_group_get_device(&vlan_info->grp, vid_info->proto,
+ vid_info->vid);
+ ret = action(vdev, vid_info->vid, arg);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(vlan_for_each);
+
int vlan_filter_push_vids(struct vlan_info *vlan_info, __be16 proto)
{
struct net_device *real_dev = vlan_info->real_dev;