From patchwork Mon Feb 21 06:38:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 12753148 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 B13F8C433F5 for ; Mon, 21 Feb 2022 06:40:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 52A558D001B; Mon, 21 Feb 2022 01:40:25 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4DA638D0001; Mon, 21 Feb 2022 01:40:25 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3C9378D001B; Mon, 21 Feb 2022 01:40:25 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0038.hostedemail.com [216.40.44.38]) by kanga.kvack.org (Postfix) with ESMTP id 292A98D0001 for ; Mon, 21 Feb 2022 01:40:25 -0500 (EST) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id E0C1A181CB144 for ; Mon, 21 Feb 2022 06:40:24 +0000 (UTC) X-FDA: 79165837968.26.8C7E3AF Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf03.hostedemail.com (Postfix) with ESMTP id 5E28D20005 for ; Mon, 21 Feb 2022 06:40:24 +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 CE150150C; Sun, 20 Feb 2022 22:40:23 -0800 (PST) Received: from p8cg001049571a15.arm.com (unknown [10.163.49.67]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8CE873F70D; Sun, 20 Feb 2022 22:40:21 -0800 (PST) From: Anshuman Khandual To: linux-mm@kvack.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, Anshuman Khandual , Christoph Hellwig , linux-arch@vger.kernel.org Subject: [PATCH V2 29/30] mm/mmap: Drop generic vm_get_page_prot() Date: Mon, 21 Feb 2022 12:08:38 +0530 Message-Id: <1645425519-9034-30-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1645425519-9034-1-git-send-email-anshuman.khandual@arm.com> References: <1645425519-9034-1-git-send-email-anshuman.khandual@arm.com> X-Stat-Signature: s8dptp66od1rkqfx3968gyif4szhf7u7 X-Rspam-User: Authentication-Results: imf03.hostedemail.com; dkim=none; spf=pass (imf03.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com; dmarc=pass (policy=none) header.from=arm.com X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5E28D20005 X-HE-Tag: 1645425624-554183 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: All available platforms export their own vm_get_page_prot() implementation via ARCH_HAS_VM_GET_PAGE_PROT. Hence a generic implementation is no longer needed. Cc: Andrew Morton Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- mm/mmap.c | 40 ---------------------------------------- 1 file changed, 40 deletions(-) diff --git a/mm/mmap.c b/mm/mmap.c index 2fc597cf8b8d..368bc8aee45b 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -102,46 +102,6 @@ static void unmap_region(struct mm_struct *mm, * w: (no) no * x: (yes) yes */ -pgprot_t vm_get_page_prot(unsigned long vm_flags) -{ - switch (vm_flags & (VM_READ | VM_WRITE | VM_EXEC | VM_SHARED)) { - case VM_NONE: - return __P000; - case VM_READ: - return __P001; - case VM_WRITE: - return __P010; - case VM_READ | VM_WRITE: - return __P011; - case VM_EXEC: - return __P100; - case VM_EXEC | VM_READ: - return __P101; - case VM_EXEC | VM_WRITE: - return __P110; - case VM_EXEC | VM_READ | VM_WRITE: - return __P111; - case VM_SHARED: - return __S000; - case VM_SHARED | VM_READ: - return __S001; - case VM_SHARED | VM_WRITE: - return __S010; - case VM_SHARED | VM_READ | VM_WRITE: - return __S011; - case VM_SHARED | VM_EXEC: - return __S100; - case VM_SHARED | VM_EXEC | VM_READ: - return __S101; - case VM_SHARED | VM_EXEC | VM_WRITE: - return __S110; - case VM_SHARED | VM_EXEC | VM_READ | VM_WRITE: - return __S111; - default: - BUILD_BUG(); - } -} -EXPORT_SYMBOL(vm_get_page_prot); #endif /* CONFIG_ARCH_HAS_VM_GET_PAGE_PROT */ static pgprot_t vm_pgprot_modify(pgprot_t oldprot, unsigned long vm_flags)