From: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Date: Wed, 24 Aug 2011 23:47:33 +0000 (+1000)
Subject: We are enabling some power features on medfield.  To test suspend-2-RAM
X-Git-Tag: next-20110912~1^2~33
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7d7c8cef5812eb7f15059fc7d75b009fffde102f;p=karo-tx-linux.git

We are enabling some power features on medfield.  To test suspend-2-RAM
conveniently, we need turn on/off ignore_loglevel frequently without
rebooting.

Add a module parameter, so users can change it by:
/sys/module/printk/parameters/ignore_loglevel

Signed-off-by: Yanmin Zhang <yanmin.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/printk.c b/kernel/printk.c
index 28a40d8171b8..19d0e47b8791 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -532,6 +532,7 @@ 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