From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751616AbaFWFsS (ORCPT ); Mon, 23 Jun 2014 01:48:18 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:52776 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751156AbaFWFsR (ORCPT ); Mon, 23 Jun 2014 01:48:17 -0400 Date: Mon, 23 Jun 2014 07:48:14 +0200 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Konstantin Khlebnikov Cc: "Yann E. MORIN" , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] kconfig: plug false-positive warning in get_prompt_str() seen with gcc-4.9 Message-ID: <20140623054813.GG13440@pengutronix.de> References: <20140525164751.28577.74072.stgit@zurg> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20140525164751.28577.74072.stgit@zurg> User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:5054:ff:fec0:8e10 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Sun, May 25, 2014 at 08:47:51PM +0400, Konstantin Khlebnikov wrote: > scripts/kconfig/menu.c: In function ‘get_symbol_str’: > scripts/kconfig/menu.c:590:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized] > jump->offset = strlen(r->s); > ^ > scripts/kconfig/menu.c:551:19: note: ‘jump’ was declared here > struct jump_key *jump; > ^ I'm seeing that problem with a 4.8.2 toolchain on next-20140623 with ARCH=arm, too. Maybe better use uninitialized_var? And point out the commit that introduced the issue please. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |