NS_PER_HALF_SEC   190 drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c 	clock_period = div_u64((NS_PER_HALF_SEC << cc->shift), cc->mult);
NS_PER_HALF_SEC   275 drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c 	freqout = div_u64(NS_PER_HALF_SEC << cc->shift,  cc->mult);