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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7BF3FCCA473 for ; Fri, 24 Jun 2022 05:12:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230412AbiFXFMi (ORCPT ); Fri, 24 Jun 2022 01:12:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229734AbiFXFMg (ORCPT ); Fri, 24 Jun 2022 01:12:36 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16129340F7; Thu, 23 Jun 2022 22:12:36 -0700 (PDT) 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 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org 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.