1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index ec21304856d1..54286798c37b 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2711,6 +2711,8 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
 }
 EXPORT_SYMBOL_GPL(lockdep_init_map);
 
+struct lock_class_key __lockdep_no_validate__;
+
 /*
  * This gets called for every mutex_lock*()/spin_lock*() operation.
  * We maintain the dependency maps and validate the locking attempt:
@@ -2745,6 +2747,9 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
                 return 0;
         }
 
+        if (lock->key == &__lockdep_no_validate__)
+                check = 1;
+
         if (!subclass)
                 class = lock->class_cache;
         /*