Merge branch 'for-5.1/nfit/ars' into libnvdimm-for-next

Merge several updates to the ARS implementation. Highlights include:

* Support retrieval of short-ARS results if the ARS state is "requires
  continuation", and even if the "no_init_ars" module parameter is
  specified.
* Allow busy-polling of the kernel ARS state by allowing root to reset
  the exponential back-off timer.
* Filter potentially stale ARS results by tracking query-ARS relative to
  the previous start-ARS.

1 files changed, 4 insertions, 0 deletions

diff --git a/net/dsa/master.c b/net/dsa/master.c
index 71bb15f491c8..54f5551fb799 100644
--- a/net/dsa/master.c
+++ b/net/dsa/master.c
@@ -205,6 +205,8 @@ static void dsa_master_reset_mtu(struct net_device *dev)
         rtnl_unlock();
 }
 
+static struct lock_class_key dsa_master_addr_list_lock_key;
+
 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp)
 {
         int ret;
@@ -218,6 +220,8 @@ int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp)
         wmb();
 
         dev->dsa_ptr = cpu_dp;
+        lockdep_set_class(&dev->addr_list_lock,
+                          &dsa_master_addr_list_lock_key);
 
         ret = dsa_master_ethtool_setup(dev);
         if (ret)