READ_ONCE
#define READ_ONCE(x) \
#define READ_ONCE(x) \
#define READ_ONCE(x) \
#define READ_ONCE(x) \
#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
#define READ_ONCE(x) \
#define READ_ONCE(x) \