Changes in Kconfig

31691914 - kunit: Introduce autorun option

Mon, 28 Oct 2024 21:54:52 +0000

kunit: Introduce autorun optionThe new option controls tests run on boot or module load. With the newdebugfs "run" dentry allowing to run tests on demand, an ability to disableautomatic tests run becomes a useful option in case of intrusive tests.The option is set to true by default to preserve the existent behavior. Itcan be overridden by either the corresponding module option or by thecorresponding config build option.Link: https://lore.kernel.org/r/173015245931.4747.16419517391658830640.stgit@skinsburskii-cloud-desktop.internal.cloudapp.netSigned-off-by: Stanislav Kinsburskii Reviewed-by: Rae Moar Acked-by: David Gow Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

4b513a02 - kunit: test: Move fault tests behind KUNIT_FAULT_TEST Kconfig option

Tue, 23 Apr 2024 09:08:06 +0000

kunit: test: Move fault tests behind KUNIT_FAULT_TEST Kconfig optionThe NULL dereference tests in kunit_fault deliberately trigger a kernelBUG(), and therefore print the associated stack trace, even when thetest passes. This is both annoying (as it bloats the test output), andcan confuse some test harnesses, which assume any BUG() is a failure.Allow these tests to be specifically disabled (without disabling allof KUnit's other tests), by placing them behind theCONFIG_KUNIT_FAULT_TEST Kconfig option. This is enabled by default, butcan be set to 'n' to disable the test. An empty 'kunit_fault' suite isleft behind, which will automatically be marked 'skipped'.As the fault tests already were disabled under UML (as they weren'tcompatible with its fault handling), we can simply adapt thoseconditions, and add a dependency on !UML for our new option.Suggested-by: Guenter Roeck Link: https://lore.kernel.org/all/928249cc-e027-4f7f-b43f-502f99a1ea63@roeck-us.net/Fixes: 82b0beff3497 ("kunit: Add tests for fault")Signed-off-by: David Gow Reviewed-by: Mickaël Salaün Reviewed-by: Rae Moar Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

b67abaad - kunit: Allow kunit test modules to use test filtering

Mon, 07 Aug 2023 10:23:56 +0000

kunit: Allow kunit test modules to use test filteringExternal tools, e.g., Intel GPU tools (IGT), support execution ofindividual selftests provided by kernel modules. That could be alsoapplicable to kunit test modules if they provided test filtering. Buttest filtering is now possible only when kunit code is built into thekernel. Moreover, a filter can be specified only at boot time, thenreboot is required each time a different filter is needed.Build the test filtering code also when kunit is configured as a module,expose test filtering functions to other kunit source files, and use themin kunit module notifier callback functions. Userspace can then reloadthe kunit module with a value of the filter_glob parameter tuned to aspecific kunit test module every time it wants to limit the scope of testsexecuted on that module load. Make the kunit.filter* parameters visiblein sysfs for user convenience.v5: Refresh on tpp of attributes filtering fixv4: Refresh on top of newly applied attributes patches and changes introdced by new versions of other patches submitted in series with this one.v3: Fix CONFIG_GLOB, required by filtering functions, not selected when building as a module (lkp@intel.com).v2: Fix new name of a structure moved to kunit namespace not updated across all uses (lkp@intel.com).Signed-off-by: Janusz Krzysztofik Reviewed-by: David Gow Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

d20a6ba5 - kunit: add kunit.enable to enable/disable KUnit test

Tue, 23 Aug 2022 14:24:54 +0000

kunit: add kunit.enable to enable/disable KUnit testThis patch adds the kunit.enable module parameter that will need to beset to true in addition to KUNIT being enabled for KUnit tests to run.The default value is true giving backwards compatibility. However, forthe production+testing use case the new config optionKUNIT_DEFAULT_ENABLED can be set to N requiring the tester to opt-inby passing kunit.enable=1 to the kernel.Signed-off-by: Joe Fradley Reviewed-by: David Gow Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

5d31f71e - kunit: add kunit.filter_glob cmdline option to filter suites

Sat, 06 Feb 2021 00:08:52 +0000

kunit: add kunit.filter_glob cmdline option to filter suitesE.g. specifying this would run suites with "list" in their name. kunit.filter_glob=list*Note: the executor prints out a TAP header that includes the number ofsuites we intend to run.So unless we want to report empty results for filtered-out suites, weneed to do the filtering here in the executor.It's also probably better in the executor since we most likely don'twant any filtering to apply to tests built as modules.This code does add a CONFIG_GLOB=y dependency for CONFIG_KUNIT=y.But the code seems light enough that it shouldn't be an issue.For now, we only filter on suite names so we don't have to create copiesof the suites themselves, just the array (of arrays) holding them.The name is rather generic since in the future, we could considerextending it to a syntax like: kunit.filter_glob=.E.g. to run all the del list tests kunit.filter_glob=list-kunit-test.*del*But at the moment, it's far easier to manually comment out test cases intest files as opposed to messing with sets of Kconfig entries to selectspecific suites.So even just doing this makes using kunit far less annoying.Signed-off-by: Daniel Latypov Reviewed-by: Brendan Higgins Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

beaed42c - kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS

Mon, 11 May 2020 13:14:25 +0000

kunit: default KUNIT_* fragments to KUNIT_ALL_TESTSThis makes it easier to enable all KUnit fragments.Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt inmenuconfig.Reviewed-by: David Gow Signed-off-by: Anders Roxell Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

92238b31 - kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment

Mon, 11 May 2020 13:14:20 +0000

kunit: Kconfig: enable a KUNIT_ALL_TESTS fragmentMake it easier to enable all KUnit fragments. This is useful for kerneldevs or testers, so its easy to get all KUnit tests enabled and if newgets added they will be enabled as well. Fragments that has to bebuiltin will be missed if CONFIG_KUNIT_ALL_TESTS is set as a module.Signed-off-by: Anders Roxell Reviewed-by: Brendan Higgins Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

e2219db2 - kunit: add debugfs /sys/kernel/debug/kunit//results display

Thu, 26 Mar 2020 14:25:07 +0000

kunit: add debugfs /sys/kernel/debug/kunit//results displayadd debugfs support for displaying kunit test suite results; this isespecially useful for module-loaded tests to allow disentangling oftest result display from other dmesg events. debugfs support isprovided if CONFIG_KUNIT_DEBUGFS=y.As well as printk()ing messages, we append them to a per-test log.Signed-off-by: Alan Maguire Reviewed-by: Brendan Higgins Reviewed-by: Frank Rowand Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

9fe124bf - kunit: allow kunit to be loaded as a module

Mon, 06 Jan 2020 22:28:22 +0000

kunit: allow kunit to be loaded as a moduleMaking kunit itself buildable as a module allows for "always-on"kunit configuration; specifying CONFIG_KUNIT=m means the moduleis built but only used when loaded. Kunit test modules will loadkunit.ko as an implicit dependency, so simply running"modprobe my-kunit-tests" will load the tests along with the kunitmodule and run them.Co-developed-by: Knut Omang Signed-off-by: Knut Omang Signed-off-by: Alan Maguire Reviewed-by: Brendan Higgins Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

c475c77d - kunit: allow kunit tests to be loaded as a module

Mon, 06 Jan 2020 22:28:20 +0000

kunit: allow kunit tests to be loaded as a moduleAs tests are added to kunit, it will become less feasible to executeall built tests together. By supporting modular tests we providea simple way to do selective execution on a running system; specifyingCONFIG_KUNIT=yCONFIG_KUNIT_EXAMPLE_TEST=m...means we can simply "insmod example-test.ko" to run the tests.To achieve this we need to do the following:o export the required symbols in kunito string-stream tests utilize non-exported symbols so for now we skip building them when CONFIG_KUNIT_TEST=m.o drivers/base/power/qos-test.c contains a few unexported interface references, namely freq_qos_read_value() and freq_constraints_init(). Both of these could be potentially defined as static inline functions in include/linux/pm_qos.h, but for now we simply avoid supporting module build for that test suite.o support a new way of declaring test suites. Because a module cannot do multiple late_initcall()s, we provide a kunit_test_suites() macro to declare multiple suites within the same module at once.o some test module names would have been too general ("test-test" and "example-test" for kunit tests, "inode-test" for ext4 tests); rename these as appropriate ("kunit-test", "kunit-example-test" and "ext4-inode-test" respectively).Also define kunit_test_suite() via kunit_test_suites()as callers in other trees may need the old definition.Co-developed-by: Knut Omang Signed-off-by: Knut Omang Signed-off-by: Alan Maguire Reviewed-by: Brendan Higgins Acked-by: Theodore Ts'o # for ext4 bitsAcked-by: David Gow # For list-testReported-by: kbuild test robot Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

d8e2a76b - kunit: test: add initial tests

Mon, 23 Sep 2019 09:02:37 +0000

kunit: test: add initial testsAdd a test for string stream along with a simpler example.Signed-off-by: Brendan Higgins Reviewed-by: Greg Kroah-Hartman Reviewed-by: Logan Gunthorpe Reviewed-by: Stephen Boyd Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig

914cc63e - kunit: test: add KUnit test runner core

Mon, 23 Sep 2019 09:02:31 +0000

kunit: test: add KUnit test runner coreAdd core facilities for defining unit tests; this provides a common wayto define test cases, functions that execute code which is under testand determine whether the code under test behaves as expected; this alsoprovides a way to group together related test cases in test suites (herewe call them test_modules).Just define test cases and how to execute them for now; settingexpectations on code will be defined later.Signed-off-by: Brendan Higgins Reviewed-by: Greg Kroah-Hartman Reviewed-by: Logan Gunthorpe Reviewed-by: Luis Chamberlain Reviewed-by: Stephen Boyd Signed-off-by: Shuah Khan List of files: /linux-6.15/lib/kunit/Kconfig