asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

RDMA/mlx5: Block delay drop to unprivileged users

Browse source 
commit ba80013fba656b9830ef45cd40a6a1e44707f47a upstream.

It has been discovered that this feature can globally block the RX port,
so it should be allowed for highly privileged users only.

Fixes: 03404e8ae652("IB/mlx5: Add support to dropless RQ")
Link: https://lore.kernel.org/r/20200322124906.1173790-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maor Gottlieb 2020-03-22 14:49:06 +02:00 committed by Greg Kroah-Hartman
parent f8ee708284
commit 2eb46d0044
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/infiniband/hw/mlx5/qp.c
View file

@ -5524,6 +5524,10 @@ struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
if (udata->outlen && udata->outlen < min_resp_len)
return ERR_PTR(-EINVAL);
if (!capable(CAP_SYS_RAWIO) &&
init_attr->create_flags & IB_WQ_FLAGS_DELAY_DROP)
return ERR_PTR(-EPERM);
dev = to_mdev(pd->device);
switch (init_attr->wq_type) {
case IB_WQT_RQ: