Re: [PATCH -next v2] arm64: mm: Fix unused variable warning in zone_sizes_init

[Catalin Marinas]

On Tue, Oct 15, 2019 at 08:11:08PM -0700, Nathan Chancellor wrote:
> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> index 44f07fdf7a59..359c3b08b968 100644
> --- a/arch/arm64/mm/init.c
> +++ b/arch/arm64/mm/init.c
> @@ -212,7 +212,9 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
>  	struct memblock_region *reg;
>  	unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
>  	unsigned long max_dma32 = min;
> +#if defined(CONFIG_ZONE_DMA) || defined(CONFIG_ZONE_DMA32)
>  	unsigned long max_dma = min;
> +#endif

Nitpick: the coding style recommends __maybe_unused instead of #ifdef.

-- 
Catalin