END_ENTIRE_DEVICE_PATH_SUBTYPE
#define DP_IS_END_SUBTYPE(a) ( ((a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE )
#define IsDevicePathEndSubType(a) ( (a)->SubType == END_ENTIRE_DEVICE_PATH_SUBTYPE )
(a)->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE; \