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Commit fe86d714 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

mlx4_en: fix a build error on 32bit arches 



commit b6c39bfc ("net/mlx4_en: Add a service task")
added a build error on 32bit arches.

ERROR: "__udivdi3" [drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko]
undefined!

Fix this problem by using do_div()

Reported-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Amir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 97cd1ee6

drivers/net/ethernet/mellanox/mlx4/en_clock.c

+4 −4
Original line number Diff line number Diff line
@@ -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)