[NET_SCHED]: turn PSCHED_GET_TIME into inline function

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index e6b1da0..b2cc9a8 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -48,11 +48,13 @@
 #define PSCHED_NS2US(x)			((x) >> 10)
 
 #define PSCHED_TICKS_PER_SEC		PSCHED_NS2US(NSEC_PER_SEC)
-#define PSCHED_GET_TIME(stamp) \
-	((stamp) = PSCHED_NS2US(ktime_to_ns(ktime_get())))
-
 #define PSCHED_PASTPERFECT		0
 
+static inline psched_time_t psched_get_time(void)
+{
+	return PSCHED_NS2US(ktime_to_ns(ktime_get()));
+}
+
 static inline psched_tdiff_t
 psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound)
 {