From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755789AbYJEAnr (ORCPT ); Sat, 4 Oct 2008 20:43:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753875AbYJEAnj (ORCPT ); Sat, 4 Oct 2008 20:43:39 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:53606 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754193AbYJEAni (ORCPT ); Sat, 4 Oct 2008 20:43:38 -0400 Date: Sun, 5 Oct 2008 01:43:34 +0100 From: Matthew Garrett To: dmitry.torokhov@gmail.com, IvDoorn@gmail.com, hmh@hmh.eng.br Cc: sitsofe@yahoo.com, linux-kernel@vger.kernel.org Subject: [PATCH v2] rfkill-input doesn't work until 5 minutes after boot Message-ID: <20081005004334.GA31844@srcf.ucam.org> References: <20081004204342.GA29620@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081004204342.GA29620@srcf.ucam.org> User-Agent: Mutt/1.5.12-2006-07-14 X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@codon.org.uk X-SA-Exim-Scanned: No (on vavatch.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org rfkill-input implements debounce as follows: if (time_after(jiffies, task->last + msecs_to_jiffies(200))) { However, task->last is initialised to 0 while jiffies starts at -300*HZ. Any input within 5 minutes of kernel start is therefore ignored. Fix by initialising task->last correctly. Signed-off-by: Matthew Garrett --- Set the last event value at module load time, since otherwise we'll have a window of failure if someone loads the module in a few hundred million years. I look forward to being rewarded by the post-humans for caring so much about them. diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c index e5b6955..86197bb 100644 --- a/net/rfkill/rfkill-input.c +++ b/net/rfkill/rfkill-input.c @@ -255,6 +255,11 @@ static struct input_handler rfkill_handler = { static int __init rfkill_handler_init(void) { + rfkill_wlan.last = jiffies - HZ/5; + rfkill_bt.last = jiffies - HZ/5; + rfkill_uwb.last = jiffies - HZ/5; + rfkill_wimax.last = jiffies - HZ/5; + rfkill_wwan.last = jiffies - HZ/5; return input_register_handler(&rfkill_handler); } -- Matthew Garrett | mjg59@srcf.ucam.org