From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752171Ab1HIDNj (ORCPT ); Mon, 8 Aug 2011 23:13:39 -0400 Received: from mga14.intel.com ([143.182.124.37]:11633 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751747Ab1HIDNi (ORCPT ); Mon, 8 Aug 2011 23:13:38 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,341,1309762800"; d="scan'208";a="36523938" Subject: [PATCH ] printk: add module parameter ignore_loglevel to control ignore_loglevel 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 11:12:44 +0800 Message-ID: <1312859564.1743.13.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 ignore_loglevel frequently without rebooting. Below patch adds a module parameter, so users could change it by: /sys/module/printk/parameters/ignore_loglevel Signed-off-by: Yanmin Zhang --- kernel/printk.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index ce00f1b..12d4437 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -530,6 +530,7 @@ static int __init ignore_loglevel_setup(char *str) } early_param("ignore_loglevel", ignore_loglevel_setup); +module_param_named(ignore_loglevel, ignore_loglevel, bool, S_IRUGO | S_IWUSR); /* * Write out chars from start to end - 1 inclusive -- 1.7.1