[ovs-git] [openvswitch/ovs] 71d0c0: lib/tc: fix parse act pedit for tos rewrite

[Simon Horman]

  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: 71d0c0d8b4d8bf01cb5367aabc5ceadba1f8ce61
      https://github.com/openvswitch/ovs/commit/71d0c0d8b4d8bf01cb5367aabc5ceadba1f8ce61
  Author: wenxu <wenxu at ucloud.cn>
  Date:   2020-12-04 (Fri, 04 Dec 2020)

  Changed paths:
    M lib/tc.c

  Log Message:
  -----------
  lib/tc: fix parse act pedit for tos rewrite

Check overlap between current pedit key, which is always 4 bytes
(range [off, off + 3]), and a map entry in flower_pedit_map
sf = ROUND_DOWN(mf, 4) (range [sf|mf, (mf + sz - 1)|ef]).

So for the tos the rewite the off + 3(3) is greater than mf,
and should less than ef(4) but not mf+sz(2).

Signed-off-by: wenxu <wenxu at ucloud.cn>
Signed-off-by: Simon Horman <simon.horman at netronome.com>