drm/i915: Fix out of tree builds
Fixes up include paths for i915_trace.h by setting additional CFLAGS
for i915_trace_points.c to include the $src directory. The required
TRACE_INCLUDE_PATH is then "."
Signed-off-by: Peter Clifton <pcjc2@cam.ac.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 3038153..9e4c45f 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -276,5 +276,5 @@
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/i915
+#define TRACE_INCLUDE_PATH .
#include <trace/define_trace.h>