Re: [PATCH 09/14] m68k: drop custom __access_ok()

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On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote:
> Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES
> (and trim the comment down to "coldfire and 68000 will pick generic
> variant")?

I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE,
select the separate address space config for s390, sparc64, non-coldfire
m68k and mips with EVA and then just have one single access_ok for
overlapping address space (as added by Arnd) and non-overlapping ones
(always return true).




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