Re: [PATCH v2] m68k: Define NR_CPUS

[Geert Uytterhoeven]

Hi David,

On Tue, Sep 24, 2024 at 9:34 AM David Hildenbrand <david@xxxxxxxxxx> wrote:
> On 24.09.24 01:56, Guenter Roeck wrote:
> > v2: Instead of trying to make SPLIT_PTE_PTLOCKS depend on the
> >      existence of NR_CPUS, define NR_CPUS for m68k.
>
> Okay, looks like we're cleaning up CONFIG_NR_CPUS for good.
>
> I'm back from conference travel tomorrow; I'll then throw in the following
> into cross compilers and fixup any other arch that needs attention:
>
>
> diff --git a/include/linux/threads.h b/include/linux/threads.h
> index 1674a471b0b4..e31715e6746b 100644
> --- a/include/linux/threads.h
> +++ b/include/linux/threads.h
> @@ -13,8 +13,7 @@
>    * bit of memory.  Use nr_cpu_ids instead of this except for static bitmaps.
>    */
>   #ifndef CONFIG_NR_CPUS
> -/* FIXME: This should be fixed in the arch's Kconfig */
> -#define CONFIG_NR_CPUS 1
> +#error "CONFIG_NR_CPUS not defined"
>   #endif
>
>   /* Places which use this should consider cpumask_var_t. */

This is gonna trigger on almost all architectures if CONFIG_SMP=n.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds