[PATCH v2 09/12] ARM: percpu: add SMP_ON_UP support

[Russell King (Oracle)]

On Tue, Nov 30, 2021 at 01:58:58PM +0100, Ard Biesheuvel wrote:
> diff --git a/arch/arm/include/asm/percpu.h b/arch/arm/include/asm/percpu.h
> index e2fcb3cfd3de..ff8f0829e041 100644
> --- a/arch/arm/include/asm/percpu.h
> +++ b/arch/arm/include/asm/percpu.h
> @@ -5,15 +5,22 @@
>  #ifndef _ASM_ARM_PERCPU_H_
>  #define _ASM_ARM_PERCPU_H_
>  
> +#include <asm/insn.h>
> +
>  register unsigned long current_stack_pointer asm ("sp");
>  
>  /*
>   * Same as asm-generic/percpu.h, except that we store the per cpu offset
>   * in the TPIDRPRW. TPIDRPRW only exists on V6K and V7
>   */
> -#if defined(CONFIG_SMP) && !defined(CONFIG_CPU_V6)
> +#ifdef CONFIG_SMP
> +extern unsigned int smp_on_up;

I would much rather we kept this hidden from global view by placing it
inside the set_my_cpu_offset() body.

-- 
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