ioctl_evtchn_unbind  544 drivers/xen/evtchn.c 		struct ioctl_evtchn_unbind unbind;
ioctl_evtchn_unbind   71 include/uapi/xen/evtchn.h 	_IOC(_IOC_NONE, 'E', 3, sizeof(struct ioctl_evtchn_unbind))