Merge git://git.infradead.org/users/eparis/audit

[firefly-linux-kernel-4.4.55.git] / include / linux / rtnetlink.h

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 167bae7bdfa45cc255cdf9c22b986c1fffe8f9d5..6cacbce1a06c54700de7017a008163cb0d4ee9b6 100644 (file)
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -46,6 +46,16 @@ static inline int lockdep_rtnl_is_held(void)
 #define rcu_dereference_rtnl(p)                                        \
        rcu_dereference_check(p, lockdep_rtnl_is_held())
 
+/**
+ * rcu_dereference_bh_rtnl - rcu_dereference_bh with debug checking
+ * @p: The pointer to read, prior to dereference
+ *
+ * Do an rcu_dereference_bh(p), but check caller either holds rcu_read_lock_bh()
+ * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference_bh()
+ */
+#define rcu_dereference_bh_rtnl(p)                             \
+       rcu_dereference_bh_check(p, lockdep_rtnl_is_held())
+
 /**
  * rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL
  * @p: The pointer to read, prior to dereferencing