commit dfc8ef5cf49a8efc44ea5dce8c1a8ae679224bed
author developer <developer@mediatek.com> Tue Dec 06 14:00:09 2022 +0800
committer developer <developer@mediatek.com> Fri Dec 09 21:13:27 2022 +0800
tree 9f1f433965b042d85119660e427fc8171032d61d
parent d6d159a35029234b20fe6402a4c6b6a4c46f5038

[][kernel][common][hnat][Fix the conditions for binding VLAN to HNAT]

[Description]
Fix the conditions for binding VLAN to HNAT.
Whether egress packets carries vlan depends on skb ->vlan_present.

The previous code will fail when encountering the following situation:
PC1->eth1.45-->lan-->PC2.
PC1 send packets with vlan 45,
disable HNAT, PC2 capture packets without vlan.
enable HNAT, PC2 capture packets with vlan.

This patch fix it.

[Release-log]
N/A


Change-Id: Iaa0916680733eda810b37abea2d0bd7201932cfd
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6879837