Merge branch 'dde' into upstream-merged

1 files changed, 23 insertions, 0 deletions

diff --git a/libdde_linux26/contrib/include/linux/mutex-debug.h b/libdde_linux26/contrib/include/linux/mutex-debug.h
new file mode 100644
index 00000000..4382d53b
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/mutex-debug.h
@@ -0,0 +1,23 @@
+#ifndef __LINUX_MUTEX_DEBUG_H
+#define __LINUX_MUTEX_DEBUG_H
+
+#include <linux/linkage.h>
+#include <linux/lockdep.h>
+
+/*
+ * Mutexes - debugging helpers:
+ */
+
+#define __DEBUG_MUTEX_INITIALIZER(lockname)				\
+	, .magic = &lockname
+#define __mutex_init __dde_mutex_init
+#define mutex_init(mutex)						\
+do {									\
+	static struct lock_class_key __key;				\
+									\
+	__mutex_init((mutex), #mutex, &__key);				\
+} while (0)
+
+extern void mutex_destroy(struct mutex *lock);
+
+#endif