Re: [PATCH v2 0/2] arch/*/io.h: remove ioremap_uc in some architectures

Baoquan He
2023-03-01T13:38:15Z

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
>