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Wed, 6 Jul 2022 08:33:17 +0000 (UTC) X-FDA: 79656010434.19.9FFED09 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf27.hostedemail.com (Postfix) with ESMTP id 0440E4002E for ; Wed, 6 Jul 2022 08:33:15 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 546F11596; Wed, 6 Jul 2022 01:33:15 -0700 (PDT) Received: from [10.163.43.16] (unknown [10.163.43.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E08113F792; Wed, 6 Jul 2022 01:33:07 -0700 (PDT) Message-ID: Date: Wed, 6 Jul 2022 14:03:05 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH V6 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms Content-Language: en-US To: Arnd Bergmann , Christophe Leroy Cc: "linux-mm@kvack.org" , "akpm@linux-foundation.org" , "linux-xtensa@linux-xtensa.org" , "linux-ia64@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-sh@vger.kernel.org" , "linux-hexagon@vger.kernel.org" , "x86@kernel.org" , "linux-um@lists.infradead.org" , "linux-mips@vger.kernel.org" , "linux-csky@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "hch@infradead.org" , "linux-m68k@lists.linux-m68k.org" , "openrisc@lists.librecores.org" , "linux-alpha@vger.kernel.org" , "sparclinux@vger.kernel.org" , "linux-riscv@lists.infradead.org" , "linux-snps-arc@lists.infradead.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" References: <20220630051630.1718927-1-anshuman.khandual@arm.com> <8a6ccbae-7d7c-6e08-cc28-eeb649f86112@arm.com> <85fff3f6-373f-3e6a-325e-0fa8ad46273a@csgroup.eu> From: Anshuman Khandual In-Reply-To: Content-Type: text/plain; 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dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf27.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com X-HE-Tag: 1657096395-173345 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 7/6/22 12:34, Arnd Bergmann wrote: > On Wed, Jul 6, 2022 at 8:33 AM Christophe Leroy > 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. ARM, M68K, RISCV all have got them inside wrapper or files which are not built, without CONFIG_MMU. With build fixes for SH and XTENSA on linux-next, I guess we are good.