LONGEST_SYM_NAME
noinline int LONGEST_SYM_NAME(void);
_Static_assert(sizeof(__stringify(LONGEST_SYM_NAME)) == KSYM_NAME_LEN,
__stringify(sizeof(LONGEST_SYM_NAME)));
KUNIT_EXPECT_EQ(test, RETURN_LONGEST_SYM, LONGEST_SYM_NAME());
(void *) kallsyms_lookup_name(__stringify(LONGEST_SYM_NAME));