On Wed, 25 Sep 2024, Ankur Arora wrote: > poll_idle() uses smp_cond_load*() as its polling mechanism. > arm64 supports an optimized version of this via LDXR, WFE, with > LDXR loading a memory region in exclusive state and the WFE > waiting for any stores to it. > > Select ARCH_HAS_OPTIMIZED_POLL so poll_idle() can be used. Reviewed-by: Christoph Lameter (Ampere) <cl@xxxxxxxxx>
