FEATURE_PAYLOAD_SIZE
memcpy(ioctl_features, &ret_payload[2], FEATURE_PAYLOAD_SIZE * 4);
memcpy(query_features, &ret_payload[2], FEATURE_PAYLOAD_SIZE * 4);
static u32 ioctl_features[FEATURE_PAYLOAD_SIZE];
static u32 query_features[FEATURE_PAYLOAD_SIZE];