[Nouveau] [PATCH v2 5/9] arc: Constify ioreadX() iomem argument (as in generic implementation)

[Alexey Brodkin]

Hi Krzysztof,

> The ioreadX() helpers have inconsistent interface.  On some architectures
> void *__iomem address argument is a pointer to const, on some not.
> 
> Implementations of ioreadX() do not modify the memory under the
> address so they can be converted to a "const" version for const-safety
> and consistency among architectures.

Thanks for this clean-up. Looks good to me, so ...

Acked-by: Alexey Brodkin <abrodkin at synopsys.com>