diff options
| author |   Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2017-08-14 14:57:39 -0600 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-08-22 17:04:22 -0400 |
| commit | e3bf14bdc17a8e917f337760cc7cacf3232d7dbc (patch) | |
| tree | d3cadc75b4c94b80f41118358053541e97f2ed86 /drivers/infiniband/core | |
| parent | rdma: Allow demand loading of NETLINK_RDMA (diff) | |
| download | linux-dev-e3bf14bdc17a8e917f337760cc7cacf3232d7dbc.tar.xz linux-dev-e3bf14bdc17a8e917f337760cc7cacf3232d7dbc.zip | |
rdma: Autoload netlink client modules
If a message comes in and we do not have the client in the table, then
try to load the module supplying that client using MODULE_ALIAS to find
it.
This duplicates the scheme seen in other netlink muxes (eg nfnetlink).
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/device.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/iwcm.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/core/netlink.c | 9 | ||||
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 3 |
5 files changed, 18 insertions, 0 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index d8edd8b11561..b76de2e2b209 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -4537,5 +4537,7 @@ static void __exit cma_cleanup(void) destroy_workqueue(cma_wq); } +MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_RDMA_CM, 1); + module_init(cma_init); module_exit(cma_cleanup); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 91d7cea1a0b9..fc6be1175183 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -1252,5 +1252,7 @@ static void __exit ib_core_cleanup(void) destroy_workqueue(ib_wq); } +MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_LS, 4); + module_init(ib_core_init); module_exit(ib_core_cleanup); diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index e33528e102f8..fcf42f6bb82a 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -1200,5 +1200,7 @@ static void __exit iw_cm_cleanup(void) iwpm_exit(RDMA_NL_IWCM); } +MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_IWCM, 2); + module_init(iw_cm_init); module_exit(iw_cm_cleanup); diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c index f782697cf4d8..e685148dd3e6 100644 --- a/drivers/infiniband/core/netlink.c +++ b/drivers/infiniband/core/netlink.c @@ -84,6 +84,15 @@ static bool is_nl_valid(unsigned int type, unsigned int op) return false; cb_table = rdma_nl_types[type].cb_table; +#ifdef CONFIG_MODULES + if (!cb_table) { + mutex_unlock(&rdma_nl_mutex); + request_module("rdma-netlink-subsys-%d", type); + mutex_lock(&rdma_nl_mutex); + cb_table = rdma_nl_types[type].cb_table; + } +#endif + if (!cb_table || (!cb_table[op].dump && !cb_table[op].doit)) return false; return true; diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 474022274e09..3ba24c428c3b 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -30,6 +30,7 @@ * POSSIBILITY OF SUCH DAMAGE. */ +#include <linux/module.h> #include <net/netlink.h> #include <rdma/rdma_netlink.h> @@ -320,3 +321,5 @@ void __exit nldev_exit(void) { rdma_nl_unregister(RDMA_NL_NLDEV); } + +MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_NLDEV, 5); |