07/07/2021 07:48, Ruifeng Wang:

The rte_wait_until_equal_xxx APIs abstract the functionality of 'polling
for a memory location to become equal to a given value'[1].

Use the API for the rte spinlock and ring implementations.
With the wait until equal APIs being stable, changes will not impact ABI.

Gavin Hu (1):
  spinlock: use wfe to reduce contention on aarch64

Ruifeng Wang (2):
  ring: use wfe to wait for ring tail update on aarch64
  build: add option to enable wait until equal

As discussed in the thread, patches 1 & 2 are applied.
The patch 3 (meson option) is rejected.