RDMA/nes: Lock down connected_nodes list while processing it

While processing connected_nodes list, we would release the lock when
we need to send reset to remote partner.  That created a window where
the list can be modified.  Change this into a two step process: place
nodes that need processing on a local list then process the local list.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.h b/drivers/infiniband/hw/nes/nes_cm.h
index 367b3d290140..282a9cbe508f 100644
--- a/drivers/infiniband/hw/nes/nes_cm.h
+++ b/drivers/infiniband/hw/nes/nes_cm.h
@@ -292,6 +292,8 @@ struct nes_cm_node {
         int                       apbvt_set;
         int                       accept_pend;
         int                     freed;
+        struct list_head        timer_entry;
+        struct list_head        reset_entry;
         struct nes_qp           *nesqp;
 };