rdma/core: Fix sparse warnings
Clean up sparse warnings in the rdma core layer.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index c8f94e8..83f77ac 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -38,6 +38,9 @@
#include <rdma/ib_mad.h>
#include <rdma/ib_sa.h>
+/* ib_cm and ib_user_cm modules share /sys/class/infiniband_cm */
+extern struct class cm_class;
+
enum ib_cm_state {
IB_CM_IDLE,
IB_CM_LISTEN,