diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_clock.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_clock.c b/drivers/net/ethernet/mellanox/mlx4/en_clock.c index 2f181219662e..fd6441071319 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_clock.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_clock.c @@ -114,6 +114,7 @@ void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev, void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev) { struct mlx4_dev *dev = mdev->dev; + u64 ns; memset(&mdev->cycles, 0, sizeof(mdev->cycles)); mdev->cycles.read = mlx4_en_read_clock; @@ -133,10 +134,9 @@ void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev) /* Calculate period in seconds to call the overflow watchdog - to make * sure counter is checked at least once every wrap around. */ - mdev->overflow_period = - (cyclecounter_cyc2ns(&mdev->cycles, - mdev->cycles.mask) / NSEC_PER_SEC / 2) - * HZ; + ns = cyclecounter_cyc2ns(&mdev->cycles, mdev->cycles.mask); + do_div(ns, NSEC_PER_SEC / 2 / HZ); + mdev->overflow_period = ns; } void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev) |