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authorJason Gunthorpe <jgunthorpe@obsidianresearch.com>2017-08-14 23:57:39 +0300
committerDoug Ledford <dledford@redhat.com>2017-08-23 00:04:22 +0300
commite3bf14bdc17a8e917f337760cc7cacf3232d7dbc (patch)
treed3cadc75b4c94b80f41118358053541e97f2ed86 /drivers/infiniband/core/netlink.c
parent1eb5be0ec79a7b21cd6b5b73d9de294dc1809e0f (diff)
downloadlinux-e3bf14bdc17a8e917f337760cc7cacf3232d7dbc.tar.xz
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/netlink.c')
-rw-r--r--drivers/infiniband/core/netlink.c9
1 files changed, 9 insertions, 0 deletions
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;