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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 8E8B2C433E2 for ; Mon, 7 Sep 2020 09:31:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 58C352075A for ; Mon, 7 Sep 2020 09:31:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728141AbgIGJbm (ORCPT ); Mon, 7 Sep 2020 05:31:42 -0400 Received: from sym2.noone.org ([178.63.92.236]:34772 "EHLO sym2.noone.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728093AbgIGJbm (ORCPT ); Mon, 7 Sep 2020 05:31:42 -0400 Received: by sym2.noone.org (Postfix, from userid 1002) id 4BlNMc58xSzvjc1; Mon, 7 Sep 2020 11:31:40 +0200 (CEST) From: Tobias Klauser To: Andrew Morton Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig , Al Viro Subject: [PATCH] fs: adjust dirtytime_interval_handler definition to match prototype Date: Mon, 7 Sep 2020 11:31:40 +0200 Message-Id: <20200907093140.13434-1-tklauser@distanz.ch> X-Mailer: git-send-email 2.11.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") changed ctl_table.proc_handler to take a kernel pointer. Adjust the definition of dirtytime_interval_handler to match its prototype in linux/writeback.h which fixes the following sparse error/warning: fs/fs-writeback.c:2189:50: warning: incorrect type in argument 3 (different address spaces) fs/fs-writeback.c:2189:50: expected void * fs/fs-writeback.c:2189:50: got void [noderef] __user *buffer fs/fs-writeback.c:2184:5: error: symbol 'dirtytime_interval_handler' redeclared with different type (incompatible argument 3 (different address spaces)): fs/fs-writeback.c:2184:5: int extern [addressable] [signed] [toplevel] dirtytime_interval_handler( ... ) fs/fs-writeback.c: note: in included file: ./include/linux/writeback.h:374:5: note: previously declared as: ./include/linux/writeback.h:374:5: int extern [addressable] [signed] [toplevel] dirtytime_interval_handler( ... ) Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") Cc: Christoph Hellwig Cc: Al Viro Signed-off-by: Tobias Klauser --- fs/fs-writeback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 149227160ff0..58b27e4070a3 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -2184,7 +2184,7 @@ static int __init start_dirtytime_writeback(void) __initcall(start_dirtytime_writeback); int dirtytime_interval_handler(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; -- 2.27.0