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

From: Baoquan He
Date: Tue Feb 21 2023 - 01:08:31 EST


In a patchset reviewing, Arnd suggested removing arch specific ioremap_uc()
and using default one defined in asm-generic/io.h instead, other than
x86 and ia64. Please see below link for more details:

https://lore.kernel.org/all/056cc71f-7fb9-4d38-a442-a05de6f7d437@xxxxxxxxxxxxxxxx/T/#u

And Arnd also provided an old link where people earlier discussed this.

https://lore.kernel.org/all/20191111192258.2234502-1-arnd@xxxxxxxx/

So in this patchset, I firstly add including asm-generic/io.h for mips,
then remove all arch specific ioremap_uc() definitions, except of x86
ans ia64. With the removing, those ARCH-es will have default
ioremap_uc() defined in asm-generic/io.h.

Baoquan He (2):
mips: add <asm-generic/io.h> including
arch/*/io.h: remove ioremap_uc in some architectures

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 -
9 files changed, 46 insertions(+), 14 deletions(-)

--
2.34.1