bonding: add missed __rcu annotation for curr_active_slave

There is one direct accesses to bond->curr_active_slave in
bond_miimon_commit(). Protected it by rcu_access_pointer()
since the later of this function also use this one.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index f7767afe116b33266de506d0728b3e04f17ee57c..6a4bbd5aa3e0951e05990be6cce6950221c812bc 100644 (file)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2699,7 +2699,7 @@ static void bond_miimon_commit(struct bonding *bond)
 
                        bond_miimon_link_change(bond, slave, BOND_LINK_UP);
 
-                       if (!bond->curr_active_slave || slave == primary)
+                       if (!rcu_access_pointer(bond->curr_active_slave) || slave == primary)
                                goto do_failover;
 
                        continue;