[PATCH iwl-next v2] igb: use ktime_get_real helpers in igb_ptp_reset()

[Aleksandr Loktionov <aleksandr.loktionov@intel.com>]

Replace ktime_to_ns(ktime_get_real()) with the direct equivalent
ktime_get_real_ns() and ktime_to_timespec64(ktime_get_real()) with
ktime_get_real_ts64() in igb_ptp_reset().  Using the combined helpers
makes the intent clearer.

Suggested-by: Jacob Keller <jacob.e.keller@intel.com>
Suggested-by: Simon Horman <horms@kernel.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
---
v1 -> v2 removed the inaccurate claim, + Pauls RB
---
 drivers/net/ethernet/intel/igb/igb_ptp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index bd85d02..638d824 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -1500,12 +1500,13 @@ void igb_ptp_reset(struct igb_adapter *adapter)
 
 	/* Re-initialize the timer. */
 	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) {
-		struct timespec64 ts = ktime_to_timespec64(ktime_get_real());
+		struct timespec64 ts;
 
+		ktime_get_real_ts64(&ts);
 		igb_ptp_write_i210(adapter, &ts);
 	} else {
 		timecounter_init(&adapter->tc, &adapter->cc,
-				 ktime_to_ns(ktime_get_real()));
+				 ktime_get_real_ns());
 	}
 out:
 	spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
-- 
2.52.0