diff options
Diffstat (limited to 'lib/test_printf.c')
| -rw-r--r-- | lib/test_printf.c | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c index 659b6cc0d483..93da0a5000ec 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -21,6 +21,8 @@ #include <linux/gfp.h> #include <linux/mm.h> +#include "../tools/testing/selftests/kselftest_module.h" + #define BUF_SIZE 256 #define PAD_SIZE 16 #define FILL_CHAR '$' @@ -239,6 +241,7 @@ plain_format(void) #define PTR ((void *)0x456789ab) #define PTR_STR "456789ab" #define PTR_VAL_NO_CRNG "(ptrval)" +#define ZEROS "" static int __init plain_format(void) @@ -268,7 +271,6 @@ plain_hash_to_buffer(const void *p, char *buf, size_t len) return 0; } - static int __init plain_hash(void) { @@ -326,6 +328,24 @@ test_hashed(const char *fmt, const void *p) } static void __init +null_pointer(void) +{ + test_hashed("%p", NULL); + test(ZEROS "00000000", "%px", NULL); + test("(null)", "%pE", NULL); +} + +#define PTR_INVALID ((void *)0x000000ab) + +static void __init +invalid_pointer(void) +{ + test_hashed("%p", PTR_INVALID); + test(ZEROS "000000ab", "%px", PTR_INVALID); + test("(efault)", "%pE", PTR_INVALID); +} + +static void __init symbol_ptr(void) { } @@ -462,8 +482,7 @@ struct_rtc_time(void) .tm_year = 118, }; - test_hashed("%pt", &tm); - + test("(%ptR?)", "%pt", &tm); test("2018-11-26T05:35:43", "%ptR", &tm); test("0118-10-26T05:35:43", "%ptRr", &tm); test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm); @@ -481,14 +500,14 @@ static void __init large_bitmap(void) { const int nbits = 1 << 16; - unsigned long *bits = kcalloc(BITS_TO_LONGS(nbits), sizeof(long), GFP_KERNEL); + unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL); if (!bits) return; bitmap_set(bits, 1, 20); bitmap_set(bits, 60000, 15); test("1-20,60000-60014", "%*pbl", nbits, bits); - kfree(bits); + bitmap_free(bits); } static void __init @@ -572,6 +591,8 @@ static void __init test_pointer(void) { plain(); + null_pointer(); + invalid_pointer(); symbol_ptr(); kernel_ptr(); struct_resource(); @@ -590,12 +611,11 @@ test_pointer(void) flags(); } -static int __init -test_printf_init(void) +static void __init selftest(void) { alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL); if (!alloced_buffer) - return -ENOMEM; + return; test_buffer = alloced_buffer + PAD_SIZE; test_basic(); @@ -604,16 +624,8 @@ test_printf_init(void) test_pointer(); kfree(alloced_buffer); - - if (failed_tests == 0) - pr_info("all %u tests passed\n", total_tests); - else - pr_warn("failed %u out of %u tests\n", failed_tests, total_tests); - - return failed_tests ? -EINVAL : 0; } -module_init(test_printf_init); - +KSTM_MODULE_LOADERS(test_printf); MODULE_AUTHOR("Rasmus Villemoes <[email protected]>"); MODULE_LICENSE("GPL"); |