Re: [PATCH] mm: generalize ZONE_[DMA|DMA32]

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On Thu, May 27, 2021 at 10:30:47PM +0800, Kefeng Wang wrote:
> ZONE_[DMA|DMA32] configs have duplicate definitions on platforms
> that subscribe them. Instead, just make them generic options which
> can be selected on applicable platforms.
> 
> Also only x86/arm64 architectures could enable both ZONE_DMA and
> ZONE_DMA32 if EXPERT, add ARCH_HAS_ZONE_DMA_SET to make dma zone
> configurable and visible on the two architectures.
> 
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> 
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> 
> Cc: Will Deacon <will@xxxxxxxxxx> 
> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> 
> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> 
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> 
> Cc: Ingo Molnar <mingo@xxxxxxxxxx> 
> Cc: Borislav Petkov <bp@xxxxxxxxx> 
> Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
> Cc: Richard Henderson <rth@xxxxxxxxxxx> 
> Cc: Russell King <linux@xxxxxxxxxxxxxxx>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>




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