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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 18:14:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 18:14:03 -0300 |
| commit | fb810cb5eda8c47e3afbb45ea6b9676841d29e8d (patch) | |
| tree | 618af9a957c6744e59d0183619a2e6cbbf685233 /lib/test_uuid.c | |
| parent | 241d9bb3427e1d074daa864a65730412b9a47a39 (diff) | |
| parent | a99cde438de0c4c0cecc1d1af1a55a75b10bfdef (diff) | |
| download | lwn-fb810cb5eda8c47e3afbb45ea6b9676841d29e8d.tar.gz lwn-fb810cb5eda8c47e3afbb45ea6b9676841d29e8d.zip | |
Merge tag 'v4.7-rc6' into patchwork
Linux 4.7-rc6
* tag 'v4.7-rc6': (1245 commits)
Linux 4.7-rc6
ovl: warn instead of error if d_type is not supported
MIPS: Fix possible corruption of cache mode by mprotect.
locks: use file_inode()
usb: dwc3: st: Use explicit reset_control_get_exclusive() API
phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
phy: miphy28lp: Inform the reset framework that our reset line may be shared
namespace: update event counter when umounting a deleted dentry
9p: use file_dentry()
lockd: unregister notifier blocks if the service fails to come up completely
ACPI,PCI,IRQ: correct operator precedence
fuse: serialize dirops by default
drm/i915: Fix missing unlock on error in i915_ppgtt_info()
powerpc: Initialise pci_io_base as early as possible
mfd: da9053: Fix compiler warning message for uninitialised variable
mfd: max77620: Fix FPS switch statements
phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
usb: dwc3: st: Inform the reset framework that our reset line may be shared
usb: host: ehci-st: Inform the reset framework that our reset line may be shared
usb: host: ohci-st: Inform the reset framework that our reset line may be shared
...
Diffstat (limited to 'lib/test_uuid.c')
| -rw-r--r-- | lib/test_uuid.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/lib/test_uuid.c b/lib/test_uuid.c new file mode 100644 index 000000000000..547d3127a3cf --- /dev/null +++ b/lib/test_uuid.c @@ -0,0 +1,133 @@ +/* + * Test cases for lib/uuid.c module. + */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/uuid.h> + +struct test_uuid_data { + const char *uuid; + uuid_le le; + uuid_be be; +}; + +static const struct test_uuid_data test_uuid_test_data[] = { + { + .uuid = "c33f4995-3701-450e-9fbf-206a2e98e576", + .le = UUID_LE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), + .be = UUID_BE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), + }, + { + .uuid = "64b4371c-77c1-48f9-8221-29f054fc023b", + .le = UUID_LE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), + .be = UUID_BE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), + }, + { + .uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84", + .le = UUID_LE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), + .be = UUID_BE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), + }, +}; + +static const char * const test_uuid_wrong_data[] = { + "c33f4995-3701-450e-9fbf206a2e98e576 ", /* no hyphen(s) */ + "64b4371c-77c1-48f9-8221-29f054XX023b", /* invalid character(s) */ + "0cb4ddff-a545-4401-9d06-688af53e", /* not enough data */ +}; + +static unsigned total_tests __initdata; +static unsigned failed_tests __initdata; + +static void __init test_uuid_failed(const char *prefix, bool wrong, bool be, + const char *data, const char *actual) +{ + pr_err("%s test #%u %s %s data: '%s'\n", + prefix, + total_tests, + wrong ? "passed on wrong" : "failed on", + be ? "BE" : "LE", + data); + if (actual && *actual) + pr_err("%s test #%u actual data: '%s'\n", + prefix, + total_tests, + actual); + failed_tests++; +} + +static void __init test_uuid_test(const struct test_uuid_data *data) +{ + uuid_le le; + uuid_be be; + char buf[48]; + + /* LE */ + total_tests++; + if (uuid_le_to_bin(data->uuid, &le)) + test_uuid_failed("conversion", false, false, data->uuid, NULL); + + total_tests++; + if (uuid_le_cmp(data->le, le)) { + sprintf(buf, "%pUl", &le); + test_uuid_failed("cmp", false, false, data->uuid, buf); + } + + /* BE */ + total_tests++; + if (uuid_be_to_bin(data->uuid, &be)) + test_uuid_failed("conversion", false, true, data->uuid, NULL); + + total_tests++; + if (uuid_be_cmp(data->be, be)) { + sprintf(buf, "%pUb", &be); + test_uuid_failed("cmp", false, true, data->uuid, buf); + } +} + +static void __init test_uuid_wrong(const char *data) +{ + uuid_le le; + uuid_be be; + + /* LE */ + total_tests++; + if (!uuid_le_to_bin(data, &le)) + test_uuid_failed("negative", true, false, data, NULL); + + /* BE */ + total_tests++; + if (!uuid_be_to_bin(data, &be)) + test_uuid_failed("negative", true, true, data, NULL); +} + +static int __init test_uuid_init(void) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(test_uuid_test_data); i++) + test_uuid_test(&test_uuid_test_data[i]); + + for (i = 0; i < ARRAY_SIZE(test_uuid_wrong_data); i++) + test_uuid_wrong(test_uuid_wrong_data[i]); + + if (failed_tests == 0) + pr_info("all %u tests passed\n", total_tests); + else + pr_err("failed %u out of %u tests\n", failed_tests, total_tests); + + return failed_tests ? -EINVAL : 0; +} +module_init(test_uuid_init); + +static void __exit test_uuid_exit(void) +{ + /* do nothing */ +} +module_exit(test_uuid_exit); + +MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); +MODULE_LICENSE("Dual BSD/GPL"); |