diff options
Diffstat (limited to 'target/linux/generic/patches-3.2/031-lockdep-bug-Exclude-TAINT_OOT_MODULE-from-disabling-.patch')
| -rw-r--r-- | target/linux/generic/patches-3.2/031-lockdep-bug-Exclude-TAINT_OOT_MODULE-from-disabling-.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.2/031-lockdep-bug-Exclude-TAINT_OOT_MODULE-from-disabling-.patch b/target/linux/generic/patches-3.2/031-lockdep-bug-Exclude-TAINT_OOT_MODULE-from-disabling-.patch new file mode 100644 index 0000000000..398bb3ed23 --- /dev/null +++ b/target/linux/generic/patches-3.2/031-lockdep-bug-Exclude-TAINT_OOT_MODULE-from-disabling-.patch @@ -0,0 +1,48 @@ +From 9ec84acee1e221d99dc33237bff5e82839d10cc0 Mon Sep 17 00:00:00 2001 +From: Ben Hutchings <ben@decadent.org.uk> +Date: Wed, 7 Dec 2011 14:30:58 +0000 +Subject: [PATCH 2/2] lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging + +We do want to allow lock debugging for GPL-compatible modules +that are not (yet) built in-tree. This was disabled as a +side-effect of commit 2449b8ba0745327c5fa49a8d9acffe03b2eded69 +('module,bug: Add TAINT_OOT_MODULE flag for modules not built +in-tree'). Lock debug warnings now include taint flags, so +kernel developers should still be able to deflect warnings +caused by out-of-tree modules. + +The TAINT_PROPRIETARY_MODULE flag for non-GPL-compatible modules +will still disable lock debugging. + +Signed-off-by: Ben Hutchings <ben@decadent.org.uk> +Cc: Nick Bowler <nbowler@elliptictech.com> +Cc: Greg KH <greg@kroah.com> +Cc: Dave Jones <davej@redhat.com> +Cc: Rusty Russell <rusty@rustcorp.com.au> +Cc: Randy Dunlap <rdunlap@xenotime.net> +Cc: Debian kernel maintainers <debian-kernel@lists.debian.org> +Cc: Peter Zijlstra <peterz@infradead.org> +Cc: Alan Cox <alan@linux.intel.com> +Link: http://lkml.kernel.org/r/1323268258.18450.11.camel@deadeye +Signed-off-by: Ingo Molnar <mingo@elte.hu> +--- + kernel/panic.c | 5 +++-- + 1 files changed, 3 insertions(+), 2 deletions(-) + +--- a/kernel/panic.c ++++ b/kernel/panic.c +@@ -237,11 +237,12 @@ void add_taint(unsigned flag) + * Can't trust the integrity of the kernel anymore. + * We don't call directly debug_locks_off() because the issue + * is not necessarily serious enough to set oops_in_progress to 1 +- * Also we want to keep up lockdep for staging development and +- * post-warning case. ++ * Also we want to keep up lockdep for staging/out-of-tree ++ * development and post-warning case. + */ + switch (flag) { + case TAINT_CRAP: ++ case TAINT_OOT_MODULE: + case TAINT_WARN: + case TAINT_FIRMWARE_WORKAROUND: + break; |