Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753951AbaBZXh1 (ORCPT ); Wed, 26 Feb 2014 18:37:27 -0500 Received: from terminus.zytor.com ([198.137.202.10]:47143 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751510AbaBZXh0 (ORCPT ); Wed, 26 Feb 2014 18:37:26 -0500 Message-ID: <530E7AAF.3070908@zytor.com> Date: Wed, 26 Feb 2014 15:37:19 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Greg KH CC: Linux Kernel Mailing List Subject: Re: The sheer number of sparse warnings in the kernel References: <530E6F76.1070605@zytor.com> <20140226232859.GA9213@kroah.com> <20140226232954.GA17791@kroah.com> <530E7963.10209@zytor.com> In-Reply-To: <530E7963.10209@zytor.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/26/2014 03:31 PM, H. Peter Anvin wrote: > On 02/26/2014 03:29 PM, Greg KH wrote: >> On Wed, Feb 26, 2014 at 03:28:59PM -0800, Greg KH wrote: >>> On Wed, Feb 26, 2014 at 02:49:26PM -0800, H. Peter Anvin wrote: >>>> The number of sparse errors in the current kernel is staggering, and it >>>> makes sparse a lot less valuable of a tool that it otherwise could be. >>>> On a build of x86-64 allyesconfig I'm getting 20,676 sparse messages. >>>> Out of those, 12,358 come from linux/err.h. Given that the latter >>>> basically spams *everything*, I can only conclude that almost noone uses >>>> sparse unless they have a filter script. >>> >>> What errors are you seeing from err.h? I don't see those when building >>> different subdirectories with sparse (which is how I normally use it.) >>> >>> And what version of sparse are you running: >>> $ sparse --version >>> v0.4.5-rc1-407-g345e8943fc36 >> >> Ah, 0.5.0 is now out, maybe you should update to that version? >> > > Yes... it looks like the 0.4.5-rc1 that shipped in Fedora is indeed out > of date. With 0.5.0 I "only" see 8,207 messages, which means that at > least the linux/err.h issue is gone. > For what it's worth, the rpm is called sparse-0.4.5.rc1-2.fc19.x86_64 and sparse --version reports 0.4.4... -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/