diff options
| -rw-r--r-- | lib/test_overflow.c | 54 |
1 files changed, 39 insertions, 15 deletions
diff --git a/lib/test_overflow.c b/lib/test_overflow.c index fa87e283b149..501ed86205c4 100644 --- a/lib/test_overflow.c +++ b/lib/test_overflow.c @@ -220,30 +220,38 @@ DEFINE_TEST_ARRAY(s64) = { pr_warn("expected "fmt" "sym" "fmt \ " to%s overflow (type %s)\n", \ a, b, of ? "" : " not", #t); \ + err = 1; \ } \ if (_r != r) { \ pr_warn("expected "fmt" "sym" "fmt" == " \ fmt", got "fmt" (type %s)\n", \ a, b, r, _r, #t); \ + err = 1; \ } \ } while (0) #define DEFINE_TEST_FUNC(t, fmt) \ -static void __init do_test_ ## t(const struct test_ ## t *p) \ +static int __init do_test_ ## t(const struct test_ ## t *p) \ { \ + int err = 0; \ + \ check_one_op(t, fmt, add, "+", p->a, p->b, p->sum, p->s_of); \ check_one_op(t, fmt, add, "+", p->b, p->a, p->sum, p->s_of); \ check_one_op(t, fmt, sub, "-", p->a, p->b, p->diff, p->d_of); \ check_one_op(t, fmt, mul, "*", p->a, p->b, p->prod, p->p_of); \ check_one_op(t, fmt, mul, "*", p->b, p->a, p->prod, p->p_of); \ + \ + return err; \ } \ \ -static void __init test_ ## t ## _overflow(void) { \ +static int __init test_ ## t ## _overflow(void) { \ + int err = 0; \ unsigned i; \ \ pr_info("%-3s: %zu tests\n", #t, ARRAY_SIZE(t ## _tests)); \ for (i = 0; i < ARRAY_SIZE(t ## _tests); ++i) \ - do_test_ ## t(&t ## _tests[i]); \ + err |= do_test_ ## t(&t ## _tests[i]); \ + return err; \ } DEFINE_TEST_FUNC(u8, "%d"); @@ -257,27 +265,43 @@ DEFINE_TEST_FUNC(u64, "%llu"); DEFINE_TEST_FUNC(s64, "%lld"); #endif -static int __init test_overflow(void) +static int __init test_overflow_calculation(void) { - test_u8_overflow(); - test_s8_overflow(); - test_u16_overflow(); - test_s16_overflow(); - test_u32_overflow(); - test_s32_overflow(); + int err = 0; + + err |= test_u8_overflow(); + err |= test_s8_overflow(); + err |= test_u16_overflow(); + err |= test_s16_overflow(); + err |= test_u32_overflow(); + err |= test_s32_overflow(); #if BITS_PER_LONG == 64 - test_u64_overflow(); - test_s64_overflow(); + err |= test_u64_overflow(); + err |= test_s64_overflow(); #endif - pr_info("done\n"); + return err; +} + +static int __init test_module_init(void) +{ + int err = 0; + + err |= test_overflow_calculation(); + + if (err) { + pr_warn("FAIL!\n"); + err = -EINVAL; + } else { + pr_info("all tests passed\n"); + } - return 0; + return err; } static void __exit test_module_exit(void) { } -module_init(test_overflow); +module_init(test_module_init); module_exit(test_module_exit); MODULE_LICENSE("Dual MIT/GPL"); |