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authorEric Dumazet <edumazet@google.com>2013-04-30 10:53:51 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-30 19:00:25 -0400
commitfe86d714168f1567989c309f73a3550022686301 (patch)
treee8e95e9a96b4b42e1e94971b16cac6b0eced1312 /drivers
parent97cd1ee6ef24eadf42bb199ab20bdc07cf919939 (diff)
downloadvexpress-lsk-fe86d714168f1567989c309f73a3550022686301.tar.gz
mlx4_en: fix a build error on 32bit arches
commit b6c39bfcf1d7d63 ("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: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Cc: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_clock.c8
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 2f181219662..fd644107131 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)