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authorJason Gunthorpe <jgg@nvidia.com>2020-10-04 02:20:10 +0300
committerJason Gunthorpe <jgg@nvidia.com>2020-10-27 01:28:00 +0300
commit628c02bf38aa42c09c3dde61284ba348290e6650 (patch)
tree7c3e6807ceb39d6daa400c348be79fafc6aa01f1 /drivers/infiniband/hw/ocrdma
parentbd2a40cc2463766ed1a55d94a4ccbdcd621da323 (diff)
downloadlinux-628c02bf38aa42c09c3dde61284ba348290e6650.tar.xz
RDMA: Remove uverbs cmds from drivers that don't use them
Allowing userspace to invoke these commands is probably going to crash these drivers as they are not tested and not expecting to use them on a user object. For example pvrdma touches cq->ring_state which is not initialized for user QPs. These commands are effected: - IB_USER_VERBS_CMD_REQ_NOTIFY_CQ is ibv_cmd_req_notify_cq() in rdma-core, only hfi1, ipath and rxe calls it. - IB_USER_VERBS_CMD_POLL_CQ is ibv_cmd_poll_cq() in rdma-core, only ipath and hfi1 calls it. - IB_USER_VERBS_CMD_POST_SEND/RECV is ibv_cmd_post_send/recv() in rdma-core, only ipath and hfi1 call them. - IB_USER_VERBS_CMD_POST_SRQ_RECV is ibv_cmd_post_srq_recv() in rdma-core, only ipath and hfi1 calls it. - IB_USER_VERBS_CMD_PEEK_CQ isn't even implemented anywhere - IB_USER_VERBS_CMD_CREATE/DESTROY_AH is ibv_cmd_create/destroy_ah() in rdma-core, only bnxt_re, efa, hfi1, ipath, mlx5, orcrdma, and rxe call it. Link: https://lore.kernel.org/r/10-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.com Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/ocrdma')
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_main.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index b5c8b5a9a093..5e67cd66359a 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -204,11 +204,6 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
BUILD_BUG_ON(sizeof(OCRDMA_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC,
sizeof(OCRDMA_NODE_DESC));
- dev->ibdev.uverbs_cmd_mask |=
- OCRDMA_UVERBS(REQ_NOTIFY_CQ) |
- OCRDMA_UVERBS(POLL_CQ) |
- OCRDMA_UVERBS(POST_SEND) |
- OCRDMA_UVERBS(POST_RECV);
dev->ibdev.uverbs_cmd_mask |=
OCRDMA_UVERBS(CREATE_AH) |
@@ -225,12 +220,9 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
ib_set_device_ops(&dev->ibdev, &ocrdma_dev_ops);
- if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) {
- dev->ibdev.uverbs_cmd_mask |=
- OCRDMA_UVERBS(POST_SRQ_RECV);
-
+ if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R)
ib_set_device_ops(&dev->ibdev, &ocrdma_dev_srq_ops);
- }
+
rdma_set_device_sysfs_group(&dev->ibdev, &ocrdma_attr_group);
ret = ib_device_set_netdev(&dev->ibdev, dev->nic_info.netdev, 1);
if (ret)