From: Paul Mundt <lethal@linux-sh.org>

Commit 95b570c9cef3b12356454c7112571b7e406b4b51 introduced a TAINT_WARN
that was implemented for all architectures using the generic
warn_on_slowpath(), which excluded any architecture that set
HAVE_ARCH_WARN_ON.

As all of the architectures that implement their own WARN_ON() all go
through the report_bug() path (specifically handling BUG_TRAP_TYPE_WARN),
taint the kernel there as well for consistency.

Tested on avr32 and sh. Also relevant for s390, parisc, and powerpc.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/bug.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN lib/bug.c~lib-taint-kernel-in-common-report_bug-warn-path lib/bug.c
--- a/lib/bug.c~lib-taint-kernel-in-common-report_bug-warn-path
+++ a/lib/bug.c
@@ -37,6 +37,7 @@
  */
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/bug.h>
 #include <linux/sched.h>
 
@@ -149,6 +150,7 @@ enum bug_trap_type report_bug(unsigned l
 			       (void *)bugaddr);
 
 		show_regs(regs);
+		add_taint(TAINT_WARN);
 		return BUG_TRAP_TYPE_WARN;
 	}
 
_