Commit d5653ec3 authored Nov 16, 2017 by Mika Kuoppala

drm/i915: Print the condition causing GEM_BUG_ON



It is easier to categorize and debug bugs if the failed condition
is in plain sight in the actual dmesg output. Make it so.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Marta Lofstedt <marta.lofstedt@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Marta Lofstedt <marta.lofstedt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171116083954.3357-1-mika.kuoppala@linux.intel.com

parent 34cc9efc

drivers/gpu/drm/i915/i915_gem.h

+5 −1

Original line number	Original line	Diff line number	Diff line
	@@ -28,7 +28,11 @@
	#include <linux/bug.h>		#include <linux/bug.h>

	#ifdef CONFIG_DRM_I915_DEBUG_GEM		#ifdef CONFIG_DRM_I915_DEBUG_GEM
	#define GEM_BUG_ON(expr) BUG_ON(expr)		#define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \
			printk(KERN_ERR "GEM_BUG_ON(%s)\n", __stringify(condition)); \
			BUG(); \
			} \
			} while(0)
	#define GEM_WARN_ON(expr) WARN_ON(expr)		#define GEM_WARN_ON(expr) WARN_ON(expr)

	#define GEM_DEBUG_DECL(var) var		#define GEM_DEBUG_DECL(var) var