linux-kernel - Re: [PATCH V6 00/26] mm/mmap: Drop __SXXX/_

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Date:   Wed, 6 Jul 2022 09:04:56 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-xtensa@...ux-xtensa.org" <linux-xtensa@...ux-xtensa.org>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        "linux-parisc@...r.kernel.org" <linux-parisc@...r.kernel.org>,
        "linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>,
        "linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
        "linux-hexagon@...r.kernel.org" <linux-hexagon@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-um@...ts.infradead.org" <linux-um@...ts.infradead.org>,
        "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        "linux-csky@...r.kernel.org" <linux-csky@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "hch@...radead.org" <hch@...radead.org>,
        "linux-m68k@...ts.linux-m68k.org" <linux-m68k@...ts.linux-m68k.org>,
        "openrisc@...ts.librecores.org" <openrisc@...ts.librecores.org>,
        "linux-alpha@...r.kernel.org" <linux-alpha@...r.kernel.org>,
        "sparclinux@...r.kernel.org" <sparclinux@...r.kernel.org>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH V6 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms

On Wed, Jul 6, 2022 at 8:33 AM Christophe Leroy
<christophe.leroy@...roup.eu> wrote:

> As far as I can see in Kconfig, CONFIG_MMU is user selectable on the
> following architectures:
> - ARM
> - M68K
> - RISCV
> - SH
>
> And is disabled by default on XTENSA.

Right, the list is complete, though it's also default-enabled for
every CPU core on xtensa, and you can only disable it for
"custom" CPU cores.

        Arnd