drm/i915: Simplify _STATE_ debug macros

Take advantage of WARN return value to simplify the flow.

Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450441647-23924-2-git-send-email-joonas.lahtinen@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 89788de..e0782b0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -88,23 +88,18 @@
  */
 #define I915_STATE_WARN(condition, format...) ({                       \
        int __ret_warn_on = !!(condition);                              \
-       if (unlikely(__ret_warn_on)) {                                  \
-               if (i915.verbose_state_checks)                          \
-                       WARN(1, format);                                \
-               else                                                    \
+       if (unlikely(__ret_warn_on))                                    \
+               if (!WARN(i915.verbose_state_checks, format))           \
                        DRM_ERROR(format);                              \
-       }                                                               \
        unlikely(__ret_warn_on);                                        \
 })
 
 #define I915_STATE_WARN_ON(condition) ({                               \
        int __ret_warn_on = !!(condition);                              \
-       if (unlikely(__ret_warn_on)) {                                  \
-               if (i915.verbose_state_checks)                          \
-                       WARN(1, "WARN_ON(" #condition ")\n");           \
-               else                                                    \
+       if (unlikely(__ret_warn_on))                                    \
+               if (!WARN(i915.verbose_state_checks,                    \
+                         "WARN_ON(" #condition ")\n"))                 \
                        DRM_ERROR("WARN_ON(" #condition ")\n");         \
-       }                                                               \
        unlikely(__ret_warn_on);                                        \
 })