From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751785Ab1HIDKA (ORCPT ); Mon, 8 Aug 2011 23:10:00 -0400 Received: from mga11.intel.com ([192.55.52.93]:48053 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751273Ab1HIDJ7 (ORCPT ); Mon, 8 Aug 2011 23:09:59 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,341,1309762800"; d="scan'208";a="39461309" Subject: [PATCH ] printk: add module parameter console_suspend_enabled to control console_suspend_enabled From: Yanmin Zhang Reply-To: yanmin_zhang@linux.intel.com To: LKML Cc: Andrew Morton Content-Type: text/plain; charset="UTF-8" Organization: UMG Date: Tue, 09 Aug 2011 11:09:04 +0800 Message-ID: <1312859345.1743.9.camel@ymzhang> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We are enabling some power features on medfield. To test suspend-2-RAM conveniently, we need turn on/off console_suspend_enabled frequently. Below patch adds a module parameter, so users could change it by: /sys/module/printk/parameters/console_suspend_enabled Signed-off-by: Yanmin Zhang --- kernel/printk.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 37dff34..ce00f1b 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1106,6 +1106,8 @@ static int __init console_suspend_disable(char *str) return 1; } __setup("no_console_suspend", console_suspend_disable); +module_param_named(console_suspend_enabled, console_suspend_enabled, + bool, S_IRUGO | S_IWUSR); /** * suspend_console - suspend the console subsystem -- 1.7.1