Re: [PATCH 11/21] asm-generic: don't provide ioremap for CONFIG_MMU
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- To: Christoph Hellwig <hch@xxxxxx>
- Subject: Re: [PATCH 11/21] asm-generic: don't provide ioremap for CONFIG_MMU
- From: Arnd Bergmann <arnd@xxxxxxxx>
- Date: Mon, 11 Nov 2019 11:29:40 +0100
- Cc: Guo Ren <guoren@xxxxxxxxxx>, Michal Simek <monstr@xxxxxxxxx>, Greentime Hu <green.hu@xxxxxxxxx>, Vincent Chen <deanbo422@xxxxxxxxx>, Guan Xuetao <gxt@xxxxxxxxxx>, "the arch/x86 maintainers" <x86@xxxxxxxxxx>, alpha <linux-alpha@xxxxxxxxxxxxxxx>, "open list:SYNOPSYS ARC ARCHITECTURE" <linux-snps-arc@xxxxxxxxxxxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, "open list:QUALCOMM HEXAGON..." <linux-hexagon@xxxxxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, linux-m68k <linux-m68k@xxxxxxxxxxxxxxx>, linux-mips@xxxxxxxxxxxxxxx, "moderated list:NIOS2 ARCHITECTURE" <nios2-dev@xxxxxxxxxxxxxxxxxxxxxx>, openrisc@xxxxxxxxxxxxxxxxxxxx, Parisc List <linux-parisc@xxxxxxxxxxxxxxx>, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390 <linux-s390@xxxxxxxxxxxxxxx>, Linux-sh list <linux-sh@xxxxxxxxxxxxxxx>, sparclinux <sparclinux@xxxxxxxxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, linux-mtd <linux-mtd@xxxxxxxxxxxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>
- In-reply-to: <20191029064834.23438-12-hch@lst.de>
- References: <20191029064834.23438-1-hch@lst.de> <20191029064834.23438-12-hch@lst.de>
On Tue, Oct 29, 2019 at 7:49 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> All MMU-enabled ports have a non-trivial ioremap and should thus provide
> the prototype for their implementation instead of providing a generic
> one unless a different symbol is not defined. Note that this only
> affects sparc32 nds32 as all others do provide their own version.
>
> Also update the kerneldoc comments in asm-generic/io.h to explain the
> situation around the default ioremap* implementations correctly.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
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