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 BA0BBC43217 for ; Thu, 19 May 2022 18:44:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241184AbiESSoR (ORCPT ); Thu, 19 May 2022 14:44:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237790AbiESSoP (ORCPT ); Thu, 19 May 2022 14:44:15 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C3955C856; Thu, 19 May 2022 11:44:14 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 63690CE2747; Thu, 19 May 2022 18:44:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20673C34100; Thu, 19 May 2022 18:44:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1652985851; bh=LV7LTnAH/p1rCGESk6oys94gfkqXoBT21ZKPBvHkVag=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=PJntBITtl+Ix70J0sB1XcPAphJMOsg4aFBWMHvc0SY2z73uU+bdYPDEbFBi+d1k76 ysN5otvLvJDv0wXhWJUhkShJ6y0IswWrsq/4D0zNAN/gjfwPvXK6nuH5Fo5/HvjFsM DcteBtGl6sEhkNPBAN1XO2L3TUlpiYC03t69XjLY= Date: Thu, 19 May 2022 11:44:10 -0700 From: Andrew Morton To: Guenter Roeck Cc: kernel test robot , linux-staging@lists.linux.dev, linux-omap@vger.kernel.org, linux-nvme@lists.infradead.org, linux-hwmon@vger.kernel.org, linux-fbdev@vger.kernel.org, kvm@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Linux Memory Management List , Geert Uytterhoeven Subject: Re: [linux-next:master] BUILD REGRESSION 736ee37e2e8eed7fe48d0a37ee5a709514d478b3 Message-Id: <20220519114410.638baa38ab2067884600cb72@linux-foundation.org> In-Reply-To: <0530d502-1291-23f3-64ac-97bd38a26bd4@roeck-us.net> References: <6285958d.+Z2aDZ4O1Y9eiazd%lkp@intel.com> <0530d502-1291-23f3-64ac-97bd38a26bd4@roeck-us.net> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org On Wed, 18 May 2022 20:41:27 -0700 Guenter Roeck wrote: > On 5/18/22 17:55, kernel test robot wrote: > > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > branch HEAD: 736ee37e2e8eed7fe48d0a37ee5a709514d478b3 Add linux-next specific files for 20220518 > > > > Error/Warning reports: > > > > https://lore.kernel.org/linux-mm/202204291924.vTGZmerI-lkp@intel.com > > https://lore.kernel.org/linux-mm/202205041248.WgCwPcEV-lkp@intel.com > > https://lore.kernel.org/linux-mm/202205122113.uLKzd3SZ-lkp@intel.com > > https://lore.kernel.org/linux-mm/202205172344.3GFeaum1-lkp@intel.com > > https://lore.kernel.org/linux-mm/202205190527.o9wVEvHI-lkp@intel.com > > > > Error/Warning: (recently discovered and may have been fixed) > > > [ .. ] > > drivers/hwmon/nct6775-platform.c:199:9: sparse: unsigned char > > drivers/hwmon/nct6775-platform.c:199:9: sparse: void > > This is getting tiresome. Every driver using outb() on m68k will > experience that "problem". As far as I can see, it is caused by > > #define out_8(addr,b) (void)((*(__force volatile u8 *) (unsigned long)(addr)) = (b)) > > in arch/m68k/include/asm/raw_io.h. I have no idea what the > "(void)" is for, but removing it "fixes" the problem. > Either case, this is not a problem with the nct6775 driver, > nor is it a new problem. (cc Geert)