From: Baoquan He <bhe@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org, arnd@arndb.de,
geert@linux-m68k.org, hch@infradead.org, mcgrof@kernel.org
Subject: Re: [PATCH v2 0/2] arch/*/io.h: remove ioremap_uc in some architectures
Date: Wed, 1 Mar 2023 21:37:16 +0800 [thread overview]
Message-ID: <Y/9VDFrWsqimW+Ce@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20230301102208.148490-1-bhe@redhat.com>
On 03/01/23 at 06:22pm, Baoquan He wrote:
> This patchset tries to remove ioremap_uc() in the current architectures
> except of x86 and ia64. They will use the default ioremap_uc definition
> in <asm-generic/io.h> which returns NULL.
>
> If any arch sees a breakage caused by the default ioremap_uc(), it can
> provide a sepcific one for its own usage.
Forgot mentioning this patchset is based on below patchset.
[PATCH v5 00/17] mm: ioremap: Convert architectures to take GENERIC_IOREMAP way
https://lore.kernel.org/all/20230301034247.136007-1-bhe@redhat.com/T/#u
>
> v1->v2:
> - Update log of patch 2, and document related to ioremap_uc()
> according to Geert's comment.
> - Add Geert's Acked-by.
>
> Baoquan He (2):
> mips: add <asm-generic/io.h> including
> arch/*/io.h: remove ioremap_uc in some architectures
>
> Documentation/driver-api/device-io.rst | 11 ++++--
> arch/alpha/include/asm/io.h | 1 -
> arch/hexagon/include/asm/io.h | 3 --
> arch/m68k/include/asm/kmap.h | 1 -
> arch/mips/include/asm/io.h | 47 +++++++++++++++++++++++++-
> arch/mips/include/asm/mmiowb.h | 2 --
> arch/parisc/include/asm/io.h | 2 --
> arch/powerpc/include/asm/io.h | 1 -
> arch/sh/include/asm/io.h | 2 --
> arch/sparc/include/asm/io_64.h | 1 -
> 10 files changed, 55 insertions(+), 16 deletions(-)
>
> --
> 2.34.1
>
next prev parent reply other threads:[~2023-03-01 13:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-01 10:22 [PATCH v2 0/2] arch/*/io.h: remove ioremap_uc in some architectures Baoquan He
2023-03-01 10:22 ` [PATCH v2 1/2] mips: add <asm-generic/io.h> including Baoquan He
2023-03-01 14:06 ` Arnd Bergmann
2023-03-02 4:12 ` Baoquan He
2023-03-02 7:12 ` Arnd Bergmann
2023-03-02 9:09 ` Baoquan He
2023-03-03 9:13 ` Baoquan He
2023-03-01 10:22 ` [PATCH v2 2/2] arch/*/io.h: remove ioremap_uc in some architectures Baoquan He
2023-03-01 13:37 ` Baoquan He [this message]
2023-03-02 19:57 ` [PATCH v2 0/2] " Luis Chamberlain
2023-03-03 10:24 ` Baoquan He
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