TEST_DATA_LEN
__type(value, char[TEST_DATA_LEN]);
__success __retval(TEST_DATA_LEN)
__u8 tmp_out[TEST_DATA_LEN << 2] = {};
__u8 tmp_in[TEST_DATA_LEN] = {};
__u8 tmp[TEST_DATA_LEN << 2];
__u8 data[TEST_DATA_LEN]; \
__u64 data64[TEST_DATA_LEN / 8]; \
TEST_DATA_LEN, 0, NULL);
.retval = TEST_DATA_LEN,
.retval = TEST_DATA_LEN + TEST_DATA_LEN - ETH_HLEN - ETH_HLEN,
.retval = TEST_DATA_LEN + TEST_DATA_LEN,