linux-kernel - Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap

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Message-ID: <87jzzt1ioc.fsf@mpe.ellerman.id.au>
Date:   Tue, 07 Mar 2023 11:58:27 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Linux-Arch <linux-arch@...r.kernel.org>,
        Baoquan He <bhe@...hat.com>, linux-sh@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-hexagon@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>, linux-mm@...ck.org,
        Luis Chamberlain <mcgrof@...nel.org>,
        linux-parisc@...r.kernel.org, linux-alpha@...r.kernel.org,
        sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some
 architectures

"Arnd Bergmann" <arnd@...db.de> writes:
> On Sun, Mar 5, 2023, at 10:29, Geert Uytterhoeven wrote:
>> On Sun, Mar 5, 2023 at 10:23 AM Michael Ellerman <mpe@...erman.id.au> wrote:
>>> Maybe that exact code path is only reachable on x86/ia64? But if so
>>> please explain why.
>>>
>>> Otherwise it looks like this series could break that driver on powerpc
>>> at least.
>>
>> Indeed.
>
> When I last looked into this, I sent a patch to use ioremap()
> on non-x86:
>
> https://lore.kernel.org/all/20191111192258.2234502-1-arnd@arndb.de/

OK thanks.

Baoquan can you add that patch to the start of this series if/when you
post the next version?

cheers