From d32f11ba281b7e203932c0a65ec1fb302493cbbe Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 17 Nov 2017 15:27:17 -0800
Subject: [PATCH] lkdtm: include WARN format string
In order to test the ordering of WARN format strings, actually include
one in LKDTM.
Link: http://lkml.kernel.org/r/1510100869-73751-2-git-send-email-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/misc/lkdtm_bugs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/lkdtm_bugs.c b/drivers/misc/lkdtm_bugs.c
index b0f7af872bb56..7eebbdfbcacd0 100644
--- a/drivers/misc/lkdtm_bugs.c
+++ b/drivers/misc/lkdtm_bugs.c
@@ -63,9 +63,11 @@ void lkdtm_BUG(void)
BUG();
}
+static int warn_counter;
+
void lkdtm_WARNING(void)
{
- WARN_ON(1);
+ WARN(1, "Warning message trigger count: %d\n", warn_counter++);
}
void lkdtm_EXCEPTION(void)
--
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