diff options
| author | Moni Shoua <monis@mellanox.co.il> | 2014-01-21 12:19:37 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-22 11:14:27 +0400 |
| commit | 6cd28f044b47aeeba91807d97d6f3ea5a048e88d (patch) | |
| tree | ac1638c8a8ce9f10c13ce00a45d1ba8eec092b0c /drivers/net | |
| parent | a6b74e01f072fbfec57090c3230915ef55a9068b (diff) | |
| download | linux-6cd28f044b47aeeba91807d97d6f3ea5a048e88d.tar.xz | |
net/mlx4_core: Remove unnecessary validation for port number
This is a fix to a regression introduced by commit:
"982290a net/mlx4_core: Check port number for validity
before accessing data"
IPoIB could not attach to multicast group and we get this in dmesg:
[144214.145008] ib0: failed to attach to multicast group, ret = -22
[144214.145016] ib0: couldn't attach QP to multicast group ff12:401b:ffff:0000:0000:0000:ffff:ffff
[144214.145019] ib0: multicast join failed for ff12:401b:ffff:0000:0000:0000:ffff:ffff, status -22
The cause to the problem is because port is extracted from gid[5].
Which is only valid for Ethernet.
Removed this validation in mlx4_qp_attach_common(), which is accessed
from both Ethernet and IB flows.
Error flow for bad port value in Ethernet is already exists in that
function.
Signed-off-by: Moni Shoua <monis@mellanox.co.il>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/mcg.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index bfe65f7be91c..aefb74f56344 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -943,9 +943,6 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], u8 port = gid[5]; u8 new_entry = 0; - if (port < 1 || port > dev->caps.num_ports) - return -EINVAL; - mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); |