e1000e: Switch to use %ptSp

Use %ptSp instead of open coded variants to print content of
struct timespec64 in human readable format.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251113150217.3030010-10-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>

Author: andy-shev

drivers/net/ethernet/intel/e1000e/ptp.c

@@ -229,14 +229,11 @@ static void e1000e_systim_overflow_work(struct work_struct *work)
 						     systim_overflow_work.work);
 	struct e1000_hw *hw = &adapter->hw;
 	struct timespec64 ts;
-	u64 ns;
 
 	/* Update the timecounter */
-	ns = timecounter_read(&adapter->tc);
+	ts = ns_to_timespec64(timecounter_read(&adapter->tc));
 
-	ts = ns_to_timespec64(ns);
-	e_dbg("SYSTIM overflow check at %lld.%09lu\n",
-	      (long long) ts.tv_sec, ts.tv_nsec);
+	e_dbg("SYSTIM overflow check at %ptSp\n", &ts);
 
 	schedule_delayed_work(&adapter->systim_overflow_work,
 			      E1000_SYSTIM_OVERFLOW_PERIOD);