Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: "Geert Uytterhoeven" <geert@xxxxxxxxxxxxxx>, "Michael Ellerman" <mpe@xxxxxxxxxxxxxx>
Subject: Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
From: "Arnd Bergmann" <arnd@xxxxxxxx>
Date: Sun, 05 Mar 2023 21:10:31 +0100
Cc: Linux-Arch <linux-arch@xxxxxxxxxxxxxxx>, "Baoquan He" <bhe@xxxxxxxxxx>, linux-sh@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, "Christoph Hellwig" <hch@xxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, "Luis Chamberlain" <mcgrof@xxxxxxxxxx>, linux-parisc@xxxxxxxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx
Feedback-id: i56a14606:Fastmail
In-reply-to: <CAMuHMdXoM24uAZGcjBtscNMOSY_+4u08PEOR7gOfCH7jvCceDg@mail.gmail.com>
References: <20230303102817.212148-1-bhe@redhat.com> <20230303102817.212148-3-bhe@redhat.com> <87sfej1rie.fsf@mpe.ellerman.id.au> <CAMuHMdXoM24uAZGcjBtscNMOSY_+4u08PEOR7gOfCH7jvCceDg@mail.gmail.com>
User-agent: Cyrus-JMAP/3.9.0-alpha0-183-gbf7d00f500-fm-20230220.001-gbf7d00f5

On Sun, Mar 5, 2023, at 10:29, Geert Uytterhoeven wrote:
>
> On Sun, Mar 5, 2023 at 10:23 AM Michael Ellerman <mpe@xxxxxxxxxxxxxx> 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@xxxxxxxx/

    Arnd

Follow-Ups:
- Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
  - From: Michael Ellerman

References:
- [PATCH v3 0/2] arch/*/io.h: remove ioremap_uc in some architectures
  - From: Baoquan He
- [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
  - From: Baoquan He
- Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
  - From: Michael Ellerman
- Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
  - From: Geert Uytterhoeven

Prev by Date: Re: [syzbot] [hardening?] [mm?] BUG: bad usercopy in con_font_op
Next by Date: Re: [PATCH v3 13/34] m68k: Implement the new page table range API
Previous by thread: Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
Next by thread: Re: [PATCH v3 2/2] arch/*/io.h: remove ioremap_uc in some architectures
Index(es):
- Date
- Thread

[Index of Archives] [Linux ARM Kernel] [Linux ARM] [Linux Omap] [Fedora ARM] [IETF Annouce] [Bugtraq] [Linux OMAP] [Linux MIPS] [eCos] [Asterisk Internet PBX] [Linux API]