Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751005AbWBZVxm (ORCPT ); Sun, 26 Feb 2006 16:53:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751023AbWBZVxm (ORCPT ); Sun, 26 Feb 2006 16:53:42 -0500 Received: from viper.oldcity.dca.net ([216.158.38.4]:32184 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S1750926AbWBZVxl (ORCPT ); Sun, 26 Feb 2006 16:53:41 -0500 Subject: Re: Building 100 kernels; we suck at dependencies and drown in warnings From: Lee Revell To: Jesper Juhl Cc: Nix , linux-kernel@vger.kernel.org In-Reply-To: <9a8748490602261349v381933b9xeb2ddeedac053910@mail.gmail.com> References: <200602261721.17373.jesper.juhl@gmail.com> <1140986578.24141.141.camel@mindpipe> <87wtfh3i9z.fsf@hades.wkstn.nix> <9a8748490602261349v381933b9xeb2ddeedac053910@mail.gmail.com> Content-Type: text/plain Date: Sun, 26 Feb 2006 16:53:39 -0500 Message-Id: <1140990819.24141.176.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.5.91 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 24 On Sun, 2006-02-26 at 22:49 +0100, Jesper Juhl wrote: > On 2/26/06, Nix wrote: > > (i.e., there's a reason that warning uses the word *might*.) > > > The compiler says "might be used uninitialized" when it cannot > determine if a variable will be initialized before first use or not. Quoting the "silence gcc warning" thread: "Really, this is a gcc bug. My version of the compiler: gcc version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5) Doesn't give this warning. And, since the loop has fixed parameters, gcc should see not only that it's always executed, but that it could be unrolled." Lee - 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/