Re: [PATCH v2 03/11] mm: ioremap: allow ARCH to have its own ioremap definition

Christoph Hellwig
2022-08-21T06:57:39Z

On Sat, Aug 20, 2022 at 08:31:17AM +0800, Baoquan He wrote:
> Architectures like xtensa, arc, can be converted to GENERIC_IOREMAP,
> to take standard ioremap_prot() and ioremap_xxx() way. But they have
> ARCH specific handling for ioremap() method, than standard ioremap()
> method.

Do they?

For arc, the arc_uncached_addr_space case can be easily handled by
arch_ioremap, and the xtensa case looks very similar to that.

I'd really like to kill off arch definitions of ioremap going
forward, as they should just be a special case of ioremap_prot
by definition.