diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c index 4a78aefdf157..7d06c673851a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c @@ -363,6 +363,7 @@ void mlx5e_ipsec_build_inverse_table(void) { u16 mss_inv; u32 mss; + u64 n; /* Calculate 1/x inverse table for use in GSO data path. * Using this table, we provide the IPSec accelerator with the value of @@ -372,7 +373,8 @@ void mlx5e_ipsec_build_inverse_table(void) */ mlx5e_ipsec_inverse_table[1] = htons(0xFFFF); for (mss = 2; mss < MAX_LSO_MSS; mss++) { - mss_inv = ((1ULL << 32) / mss) >> 16; + n = 1ULL << 32; + mss_inv = do_div(n, mss) >> 16; mlx5e_ipsec_inverse_table[mss] = htons(mss_inv); } } |