Re: [PATCH] MIPS: Loongson: Fix complie errors without CONFIG_SMP

[Matthew Wilcox <willy@xxxxxxxxxxxxx>]

On Wed, Aug 26, 2020 at 08:53:27PM +0800, Jinyang He wrote:
> +++ b/arch/mips/include/asm/mach-loongson64/topology.h
> @@ -4,7 +4,11 @@
>  
>  #ifdef CONFIG_NUMA
>  
> +#ifdef CONFIG_SMP
>  #define cpu_to_node(cpu)	(cpu_logical_map(cpu) >> 2)
> +#else
> +#define cpu_to_node(cpu)	0
> +#endif

Are you saying you've enabled NUMA without enabling SMP?  Does that make
sense?