ptp: igb: 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/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index c4894fb5c1d2..e3b9b63ad010 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -290,7 +290,6 @@ static int igb_ptp_gettime_82576(struct ptp_clock_info *ptp,
                                                ptp_caps);
         unsigned long flags;
         u64 ns;
-        u32 remainder;
 
         spin_lock_irqsave(&igb->tmreg_lock, flags);
 
@@ -298,8 +297,7 @@ static int igb_ptp_gettime_82576(struct ptp_clock_info *ptp,
 
         spin_unlock_irqrestore(&igb->tmreg_lock, flags);
 
-        ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
-        ts->tv_nsec = remainder;
+        *ts = ns_to_timespec64(ns);
 
         return 0;
 }
@@ -328,8 +326,7 @@ static int igb_ptp_settime_82576(struct ptp_clock_info *ptp,
         unsigned long flags;
         u64 ns;
 
-        ns = ts->tv_sec * 1000000000ULL;
-        ns += ts->tv_nsec;
+        ns = timespec64_to_ns(ts);
 
         spin_lock_irqsave(&igb->tmreg_lock, flags);