Fix oinkmaster patch.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.39 / patches.drivers / driver-core-fix-dynamic_debug-cmd-line-parameter.patch

From 113328306dbdfd5f146f257e447364dc66d025d4 Mon Sep 17 00:00:00 2001
From: Jason Baron <jbaron@redhat.com>
Date: Mon, 27 Oct 2008 12:05:14 -0400
Subject: Driver core: fix 'dynamic_debug' cmd line parameter
Patch-mainline: 2.6.28

From: Jason Baron <jbaron@redhat.com>

commit 113328306dbdfd5f146f257e447364dc66d025d4 upstream.

In testing 2.6.28-rc1, I found that passing 'dynamic_printk' on the command
line didn't activate the debug code. The problem is that dynamic_printk_setup()
(which activates the debugging) is being called before dynamic_printk_init() is
called (which initializes infrastructure). Fix this by setting setting the
state to 'DYNAMIC_ENABLED_ALL' in dynamic_printk_setup(), which will also
cause all subsequent modules to have debugging automatically started, which is
probably the behavior we want.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 lib/dynamic_printk.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/lib/dynamic_printk.c
+++ b/lib/dynamic_printk.c
@@ -402,6 +402,8 @@ static int __init dynamic_printk_init(vo
 				iter->logical_modname,
 				iter->flag_names, iter->hash, iter->hash2);
 	}
+	if (dynamic_enabled == DYNAMIC_ENABLED_ALL)
+		set_all(true);
 	return 0;
 }
 module_init(dynamic_printk_init);
@@ -411,7 +413,7 @@ static int __init dynamic_printk_setup(c
 {
 	if (str)
 		return -ENOENT;
-	set_all(true);
+	dynamic_enabled = DYNAMIC_ENABLED_ALL;
 	return 0;
 }
 /* Use early_param(), so we can get debug output as early as possible */