[PATCH v9 02/12] arm64: barrier: Support smp_cond_load_relaxed_timeout()

[Catalin Marinas]

On Sun, Feb 08, 2026 at 06:31:43PM -0800, Ankur Arora wrote:
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 93173f0a09c7..239fdca8e2cf 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -22,6 +22,7 @@ config ARM64
>  	select ARCH_HAS_CACHE_LINE_SIZE
>  	select ARCH_HAS_CC_PLATFORM
>  	select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
> +	select ARCH_HAS_CPU_RELAX

AFAICT, ARCH_HAS_CPU_RELAX is only defined for x86. You can't just
select it here. Either make the definition global somewhere or add this
to arm64 Kconfig:

config ARCH_HAS_CPU_RELAX
	def_bool y

Otherwise,

Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>