From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72DE3C43334 for ; Fri, 24 Jun 2022 05:12:34 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 07A126B0298; Fri, 24 Jun 2022 01:12:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 028636B029A; Fri, 24 Jun 2022 01:12:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E0C386B029B; Fri, 24 Jun 2022 01:12:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id D16AD6B0298 for ; Fri, 24 Jun 2022 01:12:33 -0400 (EDT) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id A556D35A41 for ; Fri, 24 Jun 2022 05:12:33 +0000 (UTC) X-FDA: 79611958986.15.4FDCE3C Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf26.hostedemail.com (Postfix) with ESMTP id 491FC140014 for ; Fri, 24 Jun 2022 05:12:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=20i464jFDQRcmcNOUSKspwUa6bqXoH9FmrotpkAtY4c=; b=st+tFTnm+PpdRCXxa+K5x7vb5B R72N8aDZCXlJ6KJzgb+yzmuCts+GeEibm9tVn6M/vW5eMvoUfMxGmIHoP8sQen1ut1CzMeQicil+t AeGBjo6UR11rDKgEJi38MST8WmEmtWCcee1yD8QUR1kmo4TSuiJbnJnTnSbcivjvtbu4Ss17aXwHc v5lzeWw6loI9CgVv8kJJqHHCJjGOCeUhpeaS3IJ/hcngLd48UXd0QGHVu9pWuGAMSj6M5Q6EkMMj/ L7VJ7J7Bm39XO6VnOIkLtGXPk7WzthXyckA4mHE55qtxJrEsgKcEXSnZRobi+UQhLQQ5def5khxAa IPU3+6Sg==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4bcN-000Vz9-1O; Fri, 24 Jun 2022 05:12:31 +0000 Date: Thu, 23 Jun 2022 22:12:30 -0700 From: Christoph Hellwig To: Anshuman Khandual Cc: linux-mm@kvack.org, hch@infradead.org, christophe.leroy@csgroup.eu, Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V4 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms Message-ID: References: <20220624044339.1533882-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220624044339.1533882-1-anshuman.khandual@arm.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=st+tFTnm; spf=none (imf26.hostedemail.com: domain of BATV+825a24a2c69d0abd218e+6879+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+825a24a2c69d0abd218e+6879+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656047553; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=20i464jFDQRcmcNOUSKspwUa6bqXoH9FmrotpkAtY4c=; b=51y1/7CdGwhgBU0FCYmrPggdQadRPPL2vctJlkDYxQF1yRarEiwnv4gbzT5McSNQ5+tWO2 T6KWY1e4WInK1nPgRD/ORNUexJ0yszdyNO2H+ubiDLfuZLYrPkZkPwpmOOgTlSApnh8tj4 cSwPlQCPTxsJuJlSpBg4CTu6pZLkW6g= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656047553; a=rsa-sha256; cv=none; b=xjEv15VKhf21VGJaaUvk20ck8k6IT98NF6zhCa01r4c9aKmPabXcrNzbQBydg99PMLYFh1 UmSrvoBhF8G49cbT3ap2DPhv4wUPFMtTBRvwY2INb8zCreoe1PR7FWCcUZnEKQunBo9jsx FzFiL/dltRd0P1pkTSAPBnFT8Csds04= X-Stat-Signature: aekwwa9krxmttt4fcmuehpm15764bahb X-Rspamd-Queue-Id: 491FC140014 X-Rspam-User: Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=st+tFTnm; spf=none (imf26.hostedemail.com: domain of BATV+825a24a2c69d0abd218e+6879+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+825a24a2c69d0abd218e+6879+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none X-Rspamd-Server: rspam02 X-HE-Tag: 1656047553-575283 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 Fri, Jun 24, 2022 at 10:13:13AM +0530, Anshuman Khandual wrote: > vm_get_page_prot(), in order for it to be reused on platforms that do not > require custom implementation. Finally, ARCH_HAS_VM_GET_PAGE_PROT can just > be dropped, as all platforms now define and export vm_get_page_prot(), via > looking up a private and static protection_map[] array. protection_map[] > data type is the following for all platforms without deviation (except the > powerpc one which is shared between 32 and 64 bit platforms), keeping it > unchanged for now. > > static pgprot_t protection_map[16] __ro_after_init On most architectures this should be const now, only very few ever modify it.