From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta12.messagelabs.com (mail6.bemta12.messagelabs.com [216.82.250.247]) by kanga.kvack.org (Postfix) with ESMTP id 5E0256B0069 for ; Mon, 7 Nov 2011 03:18:40 -0500 (EST) Date: Mon, 7 Nov 2011 09:18:24 +0100 From: Witold Baryluk Subject: Possible usage of uninitalized task_ratelimit variable in mm/page-writeback.c Message-ID: <20111107081824.GA18221@smp.if.uj.edu.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: Wu Fengguang , linux-mm@kvack.org Hi, I found a minor issue when compiling kernel today CC mm/page-writeback.o mm/page-writeback.c: In function a??balance_dirty_pages_ratelimited_nra??: include/trace/events/writeback.h:281:1: warning: a??task_ratelimita?? may be used uninitialized in this function [-Wuninitialized] mm/page-writeback.c:1018:16: note: a??task_ratelimita?? was declared here Indeed in balance_dirty_pages a task_ratelimit may be not initialized (initialization skiped by goto pause;), and then used when calling tracing hook. Regards, Witek -- Witold Baryluk JID: witold.baryluk // jabster.pl -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org