Florian Westphal [off-list ref] wrote:

1) Fix a bug with vlan headers in the flowtable infrastructure.
   Existing code uses skb_vlan_push() helper, but that helper
   requires skb->data to point to the MAC header, which isn't the
   case for flowtables.  Switch to a new helper, modeled on the
   existing PPPoE helper. From Eric Woudstra. This bug was added
   in v6.19-rc1.

Please toss this MR, I will create a new one in a few minutes,
axing this fix from the series.