_rsx
static inline int _rs_allocate(struct _rs **, struct _rsx **);
_rs_allocate(struct _rs **rsp, struct _rsx **rsxp)
static inline int _rs_allocate(struct _rs **, struct _rsx **);
_rs_allocate(struct _rs **rsp, struct _rsx **rsxp)
struct _rsx rsx;