[PATCH net v2 0/2] bridge: cfm: correct CC receive monitoring transitions

[Baek Kyu, Kim]

Two CC transition bugs affect CFM receive monitoring. When CC is
re-enabled with a new interval, the first RX check uses the previous
interval. After CC is disabled, a received CCM can still change peer
status even when its RX work cannot be queued.

Patch 1 stores the new CC configuration before enabling peer RX work.
Patch 2 keeps RX work disabled while CC is off and skips CCM status
processing during that time.

The v1 submission covered the RX work restart. This revision also
addresses the two review findings. The interval fix is a separate
patch because it has a distinct failure condition.

The combined series passed 8 CC interval/transition checks and 3 CCM
status checks under ARM64 QEMU/KVM with bridge/veth. The CCM status
test failed 2 of its 3 checks on the v1 image as expected.

Baek Kyu, Kim (2):
  bridge: cfm: Store the new CC configuration before enabling peers
  bridge: cfm: ignore CCM while CC is disabled

 net/bridge/br_cfm.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

---
v1: https://lkml.iu.edu/2610.3/01364.html
v2:
  - Add the CC enable interval fix as patch 1/2.
  - Skip CCM status updates while CC is disabled in patch 2/2.
  - Retain the RX work disable/enable fix from v1 in patch 2/2.

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2.55.0