The tracing infrastructure is adding a macro TRACE_SYSTEM_STRING, and hit the following build failure:

In file included from include/trace/define_trace.h:90:0, from drivers/gpu/drm/.//radeon/radeon_trace.h:209, from drivers/gpu/drm/.//radeon/radeon_trace_points.c:9:

...

include/trace/ftrace.h:28:0: warning: "TRACE_SYSTEM_STRING" redefined

#define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)

Seems that the DRM folks have added their own use to the TRACE_SYSTEM_STRING, with:

#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)

Although, I can not find its use anywhere. I could simply use another name, but if this macro is not being used, it should be removed.

Cc: Alex Deucher alexander.deucher@amd.com Cc: Christian König christian.koenig@amd.com Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel.vetter@intel.com Cc: Jani Nikula jani.nikula@linux.intel.com Reported-by: kbuild test robot fengguang.wu@intel.com Signed-off-by: Steven Rostedt rostedt@goodmis.org ---

Acks please.

diff --git a/drivers/gpu/drm/drm_trace.h b/drivers/gpu/drm/drm_trace.h index 27cc95f36381..ce3c42813fbb 100644 --- a/drivers/gpu/drm/drm_trace.h +++ b/drivers/gpu/drm/drm_trace.h @@ -7,7 +7,6 @@

#undef TRACE_SYSTEM #define TRACE_SYSTEM drm -#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM) #define TRACE_INCLUDE_FILE drm_trace

TRACE_EVENT(drm_vblank_event, diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index 6058a01b4443..d776621c8521 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -12,7 +12,6 @@

#undef TRACE_SYSTEM #define TRACE_SYSTEM i915 -#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM) #define TRACE_INCLUDE_FILE i915_trace

/* pipe updates */ diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h index ce075cb08cb2..fdce4062901f 100644 --- a/drivers/gpu/drm/radeon/radeon_trace.h +++ b/drivers/gpu/drm/radeon/radeon_trace.h @@ -9,7 +9,6 @@

#undef TRACE_SYSTEM #define TRACE_SYSTEM radeon -#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM) #define TRACE_INCLUDE_FILE radeon_trace

TRACE_EVENT(radeon_bo_create,