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-rw-r--r--include/linux/lockdep.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 74bd269a80a2..310f85903c91 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -447,6 +447,14 @@ extern int lockdep_is_held(const void *);
#endif /* !LOCKDEP */
+#ifdef CONFIG_PROVE_LOCKING
+void lockdep_set_lock_cmp_fn(struct lockdep_map *, lock_cmp_fn, lock_print_fn);
+
+#define lock_set_cmp_fn(lock, ...) lockdep_set_lock_cmp_fn(&(lock)->dep_map, __VA_ARGS__)
+#else
+#define lock_set_cmp_fn(lock, ...) do { } while (0)
+#endif
+
enum xhlock_context_t {
XHLOCK_HARD,
XHLOCK_SOFT,