[RFT 00/13] iomap: Constify ioreadX() iomem argument

Krzysztof Kozlowski krzk at kernel.org
Wed Jan 8 19:15:50 AEDT 2020


On Wed, 8 Jan 2020 at 09:08, Geert Uytterhoeven <geert at linux-m68k.org> wrote:
>
> Hi Krzysztof,
>
> On Tue, Jan 7, 2020 at 5:53 PM Krzysztof Kozlowski <krzk at kernel.org> wrote:
> > The ioread8/16/32() and others have inconsistent interface among the
> > architectures: some taking address as const, some not.
> >
> > It seems there is nothing really stopping all of them to take
> > pointer to const.
>
> Shouldn't all of them take const volatile __iomem pointers?
> It seems the "volatile" is missing from all but the implementations in
> include/asm-generic/io.h.

It's kind of separate issue although I could squash it to limit
redundant changes.

> > Patchset was really tested on all affected architectures.

I just spot an error in my first message. I wanted to say:
"Patchset was NOT really tested on all affected architectures."

Obviously.


> > Build testing is in progress - I hope auto-builders will point any issues.
> >
> >
> > Todo
> > ====
> > Convert also string versions (ioread16_rep() etc) if this aproach looks OK.
> >
> >
> > Merging
> > =======
> > The first 5 patches - iomap, alpha, sh, parisc and powerpc - should probably go
> > via one tree, or even squashed into one.
>
> Yes, they should be squashed, cfr. Arnd's comment.
> I also wouldn't bother doing the updates in patches 6-10.

Indeed, thanks for comments.

Best regards,
Krzysztof


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