From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755043AbdCIS3G (ORCPT ); Thu, 9 Mar 2017 13:29:06 -0500 Received: from mail-yw0-f175.google.com ([209.85.161.175]:36276 "EHLO mail-yw0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793AbdCIS3E (ORCPT ); Thu, 9 Mar 2017 13:29:04 -0500 Date: Thu, 9 Mar 2017 13:29:01 -0500 From: Tejun Heo To: Corcodel Marian Cc: Li Zefan , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Used void functions follows non void Message-ID: <20170309182901.GF28982@htj.duckdns.org> References: <65a50f47-b87a-790d-cc16-0b873bffdc97@marian1000.go.ro> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <65a50f47-b87a-790d-cc16-0b873bffdc97@marian1000.go.ro> User-Agent: Mutt/1.7.1 (2016-10-04) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 09, 2017 at 04:39:10PM +0200, Corcodel Marian wrote: > > Make compiler to print errors message ; > run make; > Bellow is errors message from compiler: > include/linux/cgroup.h:424:2: warning: ‘return’ with no value, in function > returning non-void [-Wreturn-type] > return task_css_set_check(task, false); > ^ > include/linux/cgroup.h: In function ‘task_css’: > include/linux/cgroup.h:414:35: error: expected expression before ‘->’ token > task_css_set_check((task), (__c))->subsys[(subsys_id)] > ^ > include/linux/cgroup.h:437:9: note: in expansion of macro ‘task_css_check’ > return task_css_check(task, subsys_id, false); > ^ > include/linux/cgroup.h: In function ‘task_css_is_root’: > include/linux/cgroup.h:414:35: error: expected expression before ‘->’ token > task_css_set_check((task), (__c))->subsys[(subsys_id)] > ^ > include/linux/cgroup.h:475:9: note: in expansion of macro ‘task_css_check’ > return task_css_check(task, subsys_id, true) == Can you please share the .config used and the kernel version? Thanks. -- tejun