#ifdef CONFIG_LOCKDEP
#define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint) \ ( \ ({ \ static struct lock_class_key _key; \
v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint, \ &_key, \ KBUILD_BASENAME ":" \ __stringify(__LINE__) ":" \ "(" #hdl ")->_lock"); \
}) \ ) #else #define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint) \ v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint, NULL, NULL) #endif