[net 14/18] net/mlx5e: E-switch, Fix rate calculation division
From: Saeed Mahameed <saeed@kernel.org>
Date: 2021-03-10 19:04:53
Also in:
linux-rdma
Subsystem:
mellanox ethernet driver (mlx5e), mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Parav Pandit <redacted>
do_div() returns reminder, while cited patch wanted to use
quotient.
Fix it by using quotient.
Fixes: 0e22bfb7c046 ("net/mlx5e: E-switch, Fix rate calculation for overflow")
Signed-off-by: Parav Pandit <redacted>
Signed-off-by: Maor Dickman <redacted>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 0da69b98f38f..0cacf46dc950 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c@@ -4445,7 +4445,8 @@ static int apply_police_params(struct mlx5e_priv *priv, u64 rate, */ if (rate) { rate = (rate * BITS_PER_BYTE) + 500000; - rate_mbps = max_t(u64, do_div(rate, 1000000), 1); + do_div(rate, 1000000); + rate_mbps = max_t(u32, rate, 1); } err = mlx5_esw_modify_vport_rate(esw, vport_num, rate_mbps);
--
2.29.2