RDMA/netlink: Remove netlink clients infrastructure
RDMA netlink has a complicated infrastructure for dynamically
registering and de-registering netlink clients to the NETLINK_RDMA
group. The complicated portion of this code is not widely used because
2 of the 3 current clients are statically compiled together with
netlink.c. The infrastructure, therefore, is deemed overkill.
Refactor the code to eliminate the dynamically added clients. Now all
clients are pre-registered in a client array at compile time, and at run
time they merely check-in with the infrastructure to pass their callback
table for inclusion in the pre-sized client array.
This also allows for future cleanups and removal of unneeded code in the
iwcm* netlink handler.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Chien Tin Tung <chien.tin.tung@intel.com>
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index ca4135c..2a16a55 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -4512,9 +4512,7 @@ static int __init cma_init(void)
if (ret)
goto err;
- if (ibnl_add_client(RDMA_NL_RDMA_CM, ARRAY_SIZE(cma_cb_table),
- cma_cb_table))
- pr_warn("RDMA CMA: failed to add netlink callback\n");
+ rdma_nl_register(RDMA_NL_RDMA_CM, cma_cb_table);
cma_configfs_init();
return 0;
@@ -4531,7 +4529,7 @@ static int __init cma_init(void)
static void __exit cma_cleanup(void)
{
cma_configfs_exit();
- ibnl_remove_client(RDMA_NL_RDMA_CM);
+ rdma_nl_unregister(RDMA_NL_RDMA_CM);
ib_unregister_client(&cma_client);
unregister_netdevice_notifier(&cma_nb);
rdma_addr_unregister_client(&addr_client);