Re: [PATCH -next v3] arm64: mm: Fix unused variable warning in zone_sizes_init

[Catalin Marinas]

On Wed, Oct 16, 2019 at 07:47:14AM -0700, Nathan Chancellor wrote:
> When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32
> get disabled so there is a warning about max_dma being unused.
> 
> ../arch/arm64/mm/init.c:215:16: warning: unused variable 'max_dma'
> [-Wunused-variable]
>         unsigned long max_dma = min;
>                       ^
> 1 warning generated.
> 
> Add __maybe_unused to make this clear to the compiler.
> 
> Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32")
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>

Thanks. Queued on top of Nicolas' patches for 5.5. I also added Nicolas'
reviewed-by from v2 as I suspect it still stands.

-- 
Catalin