Same as
commit c883ef1b1c998d2d66866772fd0fc34afa45641e
Author: Mika Kuoppala <miku@xxxxxx>
Date: Tue Oct 28 17:32:30 2014 +0200
drm/i915: Redefine WARN_ON to include the condition
but for WARN_ON_ONCE. Since the kernel WARN_ON_ONCE actually picks up
*our* version of WARN_ON, we end up with messages like
[ 838.285319] WARN_ON(!__warned)
which are not that helpful.
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a80b15f7acfa..a76c6eee593c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -70,6 +70,9 @@
#define WARN_ON(x) WARN((x), "WARN_ON(" #x ")")
#endif
+#undef WARN_ON_ONCE
+#define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(" #x ")")
+
#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
(long) (x), __func__);
--
2.1.4
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