mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-04 19:41:53 +02:00
e6804feade
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29846 3c298f89-4303-0410-b956-a3cf2f4a3e73
48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
From df754e6af2f237a6c020c0daff55a1a609338e31 Mon Sep 17 00:00:00 2001
|
|
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
|
|
Date: Mon, 14 Nov 2011 13:13:49 +0100
|
|
Subject: [PATCH 1/2] lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep
|
|
|
|
It's unlikely that TAINT_FIRMWARE_WORKAROUND causes false
|
|
lockdep messages, so do not disable lockdep in that case.
|
|
We still want to keep lockdep disabled in the
|
|
TAINT_OOT_MODULE case:
|
|
|
|
- bin-only modules can cause various instabilities in
|
|
their and in unrelated kernel code
|
|
|
|
- they are impossible to debug for kernel developers
|
|
|
|
- they also typically do not have the copyright license
|
|
permission to link to the GPL-ed lockdep code.
|
|
|
|
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
|
|
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
|
|
Link: http://lkml.kernel.org/n/tip-xopopjjens57r0i13qnyh2yo@git.kernel.org
|
|
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
|
---
|
|
kernel/panic.c | 12 ++++++++++--
|
|
1 files changed, 10 insertions(+), 2 deletions(-)
|
|
|
|
--- a/kernel/panic.c
|
|
+++ b/kernel/panic.c
|
|
@@ -240,8 +240,16 @@ void add_taint(unsigned flag)
|
|
* Also we want to keep up lockdep for staging development and
|
|
* post-warning case.
|
|
*/
|
|
- if (flag != TAINT_CRAP && flag != TAINT_WARN && __debug_locks_off())
|
|
- printk(KERN_WARNING "Disabling lock debugging due to kernel taint\n");
|
|
+ switch (flag) {
|
|
+ case TAINT_CRAP:
|
|
+ case TAINT_WARN:
|
|
+ case TAINT_FIRMWARE_WORKAROUND:
|
|
+ break;
|
|
+
|
|
+ default:
|
|
+ if (__debug_locks_off())
|
|
+ printk(KERN_WARNING "Disabling lock debugging due to kernel taint\n");
|
|
+ }
|
|
|
|
set_bit(flag, &tainted_mask);
|
|
}
|