[NET_SCHED]: kill PSCHED_SET_PASTPERFECT/PSCHED_IS_PASTPERFECT

Use direct assignment and comparison instead.

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 49325ff..c40147a 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -54,8 +54,7 @@
 #define PSCHED_TDIFF(tv1, tv2)		(long)((tv1) - (tv2))
 #define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
 					min_t(long long, (tv1) - (tv2), bound)
-#define PSCHED_SET_PASTPERFECT(t)	((t) = 0)
-#define PSCHED_IS_PASTPERFECT(t)	((t) == 0)
+#define PSCHED_PASTPERFECT		0
 
 struct qdisc_watchdog {
 	struct hrtimer	timer;
diff --git a/include/net/red.h b/include/net/red.h
index a4eb379..d9e1149 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -151,7 +151,7 @@
 
 static inline int red_is_idling(struct red_parms *p)
 {
-	return !PSCHED_IS_PASTPERFECT(p->qidlestart);
+	return p->qidlestart != PSCHED_PASTPERFECT;
 }
 
 static inline void red_start_of_idle_period(struct red_parms *p)
@@ -161,7 +161,7 @@
 
 static inline void red_end_of_idle_period(struct red_parms *p)
 {
-	PSCHED_SET_PASTPERFECT(p->qidlestart);
+	p->qidlestart = PSCHED_PASTPERFECT;
 }
 
 static inline void red_restart(struct red_parms *p)