perfcounter tools: make rdclock an inline function

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 11 insertions, 7 deletions

diff --git a/Documentation/perf_counter/perf.h b/Documentation/perf_counter/perf.h
index 391fcc73148..fb142307228 100644
--- a/Documentation/perf_counter/perf.h
+++ b/Documentation/perf_counter/perf.h
@@ -8,13 +8,17 @@
 #define PR_TASK_PERF_COUNTERS_DISABLE   31
 #define PR_TASK_PERF_COUNTERS_ENABLE    32
 
-#define rdclock()                                       \
-({                                                      \
-        struct timespec ts;                             \
-                                                        \
-        clock_gettime(CLOCK_MONOTONIC, &ts);            \
-        ts.tv_sec * 1000000000ULL + ts.tv_nsec;         \
-})
+#ifndef NSEC_PER_SEC
+# define NSEC_PER_SEC                   1000000000ULL
+#endif
+
+static inline unsigned long long rdclock(void)
+{
+        struct timespec ts;
+
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+        return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
+}
 
 /*
  * Pick up some kernel type conventions: