timekeeping: Use ktime_t data for ktime_get_update_offsets_now()

No need to juggle with timespecs.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

kernel/time/timekeeping.c

@@ -1668,14 +1668,14 @@ ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, ktime_t *offs_boot,
 							ktime_t *offs_tai)
 {
 	struct timekeeper *tk = &tk_core.timekeeper;
-	ktime_t now;
 	unsigned int seq;
-	u64 secs, nsecs;
+	ktime_t base;
+	u64 nsecs;
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 
-		secs = tk->xtime_sec;
+		base = tk->base_mono;
 		nsecs = timekeeping_get_ns(tk);
 
 		*offs_real = tk->offs_real;
@@ -1683,9 +1683,7 @@ ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, ktime_t *offs_boot,
 		*offs_tai = tk->offs_tai;
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
-	now = ktime_add_ns(ktime_set(secs, 0), nsecs);
-	now = ktime_sub(now, *offs_real);
-	return now;
+	return ktime_add_ns(base, nsecs);
 }
 #endif