[PATCH v1] riscv: make ZONE_DMA32 optional

[Christoph Hellwig]

On Sun, Oct 06, 2024 at 10:55:39AM +0000, Vladimir Kondratiev wrote:
> It is not necessary any RISCV platform has ZONE_DMA32.
> Platforms that not support ZONE_DMA32 should set
> CONFIG_NONPORTABLE because lack of ZONE_DMA32
> makes such platform non-portable indeed

Well, this doesn't get any more true by just irgnoring the previous
discussion and just reposting :(