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| author | Hangbin Liu <liuhangbin@gmail.com> | 2025-10-30 10:35:39 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-01 03:42:35 +0300 |
| commit | c211f5d7cbd5cb34489d526648bb9c8ecc907dee (patch) | |
| tree | 55cb4622261e000eb32797728bb358a93cf46e0f | |
| parent | d01f8136d46b925798abcf86b35a4021e4cfb8bb (diff) | |
| download | linux-c211f5d7cbd5cb34489d526648bb9c8ecc907dee.tar.xz | |
net: vlan: sync VLAN features with lower device
After registering a VLAN device and setting its feature flags, we need to
synchronize the VLAN features with the lower device. For example, the VLAN
device does not have the NETIF_F_LRO flag, it should be synchronized with
the lower device based on the NETIF_F_UPPER_DISABLES definition.
As the dev->vlan_features has changed, we need to call
netdev_update_features(). The caller must run after netdev_upper_dev_link()
links the lower devices, so this patch adds the netdev_update_features()
call in register_vlan_dev().
Fixes: fd867d51f889 ("net/core: generic support for disabling netdev features down stack")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20251030073539.133779-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/8021q/vlan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index fda3a80e9340..2b74ed56eb16 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -193,6 +193,8 @@ int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack) vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, dev); grp->nr_vlan_devs++; + netdev_update_features(dev); + return 0; out_unregister_netdev: |