From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753803AbaBZX2U (ORCPT ); Wed, 26 Feb 2014 18:28:20 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:53385 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685AbaBZX2T (ORCPT ); Wed, 26 Feb 2014 18:28:19 -0500 Date: Wed, 26 Feb 2014 15:29:54 -0800 From: Greg KH To: "H. Peter Anvin" Cc: Linux Kernel Mailing List Subject: Re: The sheer number of sparse warnings in the kernel Message-ID: <20140226232954.GA17791@kroah.com> References: <530E6F76.1070605@zytor.com> <20140226232859.GA9213@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140226232859.GA9213@kroah.com> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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? thanks, greg k-h