timekeeping: Get rid of pointless typecasts

cycle_t is defined as u64, so casting it to u64 is a pointless and
confusing exercise. cycle_t should simply go away and be replaced with a
plain u64 to avoid further confusion.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Parit Bhargava <prarit@redhat.com>
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: "Christopher S. Hall" <christopher.s.hall@intel.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Liav Rehana <liavr@mellanox.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20161208204228.844699737@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 3 deletions

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 5244821643a4..82e1b5cbebbb 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -258,10 +258,9 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
         tk->cycle_interval = interval;
 
         /* Go back from cycles -> shifted ns */
-        tk->xtime_interval = (u64) interval * clock->mult;
+        tk->xtime_interval = interval * clock->mult;
         tk->xtime_remainder = ntpinterval - tk->xtime_interval;
-        tk->raw_interval =
-                ((u64) interval * clock->mult) >> clock->shift;
+        tk->raw_interval = (interval * clock->mult) >> clock->shift;
 
          /* if changing clocks, convert xtime_nsec shift units */
         if (old_clock) {