[PATCH] mei: trace: Remove unused TRACE_SYSTEM_STRING define

[Steven Rostedt]

TRACE_SYSTEM_STRING is defined in mei-trace.h but is unused. Worse yet,
the ftrace tracing infrastructure is using it now and this causes
warnings about redefined macros.

Remove the define of TRACE_SYSTEM_STRING from mei-trace.h

Link: http://lkml.kernel.org/r/20150413193720.56083fbf@xxxxxxxxxxxxxxxx

Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
diff --git a/drivers/misc/mei/mei-trace.h b/drivers/misc/mei/mei-trace.h
index 5f4e1a17360b..c9e24d2b698a 100644
--- a/drivers/misc/mei/mei-trace.h
+++ b/drivers/misc/mei/mei-trace.h
@@ -26,7 +26,6 @@
 #undef TRACE_SYSTEM
 
 #define TRACE_SYSTEM mei
-#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)
 
 TRACE_EVENT(mei_reg_read,
 	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),
--
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