From patchwork Wed Jan 20 17:36:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 12033045 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82528C433DB for ; Wed, 20 Jan 2021 17:36:49 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3481623136 for ; Wed, 20 Jan 2021 17:36:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3481623136 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4B4A06B0012; Wed, 20 Jan 2021 12:36:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 461546B0022; Wed, 20 Jan 2021 12:36:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 308576B0023; Wed, 20 Jan 2021 12:36:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0159.hostedemail.com [216.40.44.159]) by kanga.kvack.org (Postfix) with ESMTP id 129536B0012 for ; Wed, 20 Jan 2021 12:36:46 -0500 (EST) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id CC3DA1EE6 for ; Wed, 20 Jan 2021 17:36:45 +0000 (UTC) X-FDA: 77726858370.26.slave86_1e085412755c Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin26.hostedemail.com (Postfix) with ESMTP id A9A3E1804B66E for ; Wed, 20 Jan 2021 17:36:45 +0000 (UTC) X-HE-Tag: slave86_1e085412755c X-Filterd-Recvd-Size: 2767 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Wed, 20 Jan 2021 17:36:45 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 116FC23122; Wed, 20 Jan 2021 17:36:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611164204; bh=DEWJsXFSV81jlOBYgr3LEPW3UawvblxwfW/J9Ed78ic=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VpQVclVXlxSy0Xj5C7hS2E1F4PoDjtit84Uz02J2rq+/QVqCfZtq7tyCx5+xqaGkx Q4U5Xz2/Dqs206JdOTX6hIowJzsptc1Xi564azFWvGsbVVlQf/Gst6qKY6OkzZL9Zq P9eqggQdSqPisehrzCZmupr2rY1pJqtK67kijhnTmBNcBtdEhPi2fScZPX3PYbh6PQ lVep4qzAp7FiRs+7aTJXmmsQgW4+sIwBsP0HqAlpYGaup7TYLg8knbq4/FZqtTb7ac qwfZ/sTOEaBhym7q5/L4qu0dcevjkjJUmH0BA1fURJRgVg8zoAhF4S23jkfLndhPiK HvHfwILoYBO4w== From: Will Deacon To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Will Deacon , Catalin Marinas , Jan Kara , Minchan Kim , Andrew Morton , "Kirill A . Shutemov" , Linus Torvalds , Vinayak Menon , Hugh Dickins , Nick Desaulniers , kernel-team@android.com Subject: [PATCH v4 8/8] mm: Mark anonymous struct field of 'struct vm_fault' as 'const' Date: Wed, 20 Jan 2021 17:36:12 +0000 Message-Id: <20210120173612.20913-9-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210120173612.20913-1-will@kernel.org> References: <20210120173612.20913-1-will@kernel.org> MIME-Version: 1.0 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: The fields of this struct are only ever read after being initialised, so mark it 'const' before somebody tries to modify it again. Cc: Kirill A. Shutemov Cc: Linus Torvalds Signed-off-by: Will Deacon --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index e0f056753bef..7ff3d9817d38 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -514,7 +514,7 @@ static inline bool fault_flag_allow_retry_first(unsigned int flags) * pgoff should be used in favour of virtual_address, if possible. */ struct vm_fault { - struct { + const struct { struct vm_area_struct *vma; /* Target VMA */ gfp_t gfp_mask; /* gfp mask to be used for allocations */ pgoff_t pgoff; /* Logical page offset based on vma */