ptp: fec: use helpers for converting ns to timespec.

This patch changes the driver to use ns_to_timespec64() and
timespec64_to_ns() instead of open coding the same logic.

Compile tested only.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index b833993d2e19..a583d89b13c4 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -395,15 +395,13 @@ static int fec_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
         struct fec_enet_private *adapter =
             container_of(ptp, struct fec_enet_private, ptp_caps);
         u64 ns;
-        u32 remainder;
         unsigned long flags;
 
         spin_lock_irqsave(&adapter->tmreg_lock, flags);
         ns = timecounter_read(&adapter->tc);
         spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
 
-        ts->tv_sec = div_u64_rem(ns, 1000000000ULL, &remainder);
-        ts->tv_nsec = remainder;
+        *ts = ns_to_timespec64(ns);
 
         return 0;
 }
@@ -433,8 +431,7 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp,
                 return -EINVAL;
         }
 
-        ns = ts->tv_sec * 1000000000ULL;
-        ns += ts->tv_nsec;
+        ns = timespec64_to_ns(ts);
         /* Get the timer value based on timestamp.
          * Update the counter with the masked value.
          */