TCA_VLAN_ACT_MODIFY allows one to change an existing tag.

It accepts same attributes as TCA_VLAN_ACT_PUSH (protocol, id,
If packet is vlan tagged, then the tag gets overwritten according to
user specified attributes.

For example, this allows user to replace a tag's vid while preserving
its priority bits (as opposed to "action vlan pop pipe action vlan push").

Shmulik Ladkani (2):
  net: skbuff: Export __skb_vlan_pop
  net/sched: act_vlan: Introduce TCA_VLAN_ACT_MODIFY vlan action

 include/linux/skbuff.h              |  1 +
 include/uapi/linux/tc_act/tc_vlan.h |  1 +
 net/core/skbuff.c                   |  7 +++++--
 net/sched/act_vlan.c                | 29 ++++++++++++++++++++++++++++-
 4 files changed, 35 insertions(+), 3 deletions(-)


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