@@ -2,6 +2,7 @@
#ifndef _KUNIT_PLATFORM_DRIVER_H
#define _KUNIT_PLATFORM_DRIVER_H
+struct completion;
struct kunit;
struct platform_device;
struct platform_driver;
@@ -312,6 +312,7 @@ static inline void kunit_set_failure(struct kunit *test)
}
bool kunit_enabled(void);
+bool kunit_autorun(void);
const char *kunit_action(void);
const char *kunit_filter_glob(void);
char *kunit_filter(void);
@@ -334,7 +335,8 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
int *err);
void kunit_free_suite_set(struct kunit_suite_set suite_set);
-int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites);
+int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites,
+ bool run_tests);
void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites);
@@ -81,4 +81,16 @@ config KUNIT_DEFAULT_ENABLED
In most cases this should be left as Y. Only if additional opt-in
behavior is needed should this be set to N.
+config KUNIT_AUTORUN_ENABLED
+ bool "Default value of kunit.autorun"
+ default y
+ help
+ Sets the default value of kunit.autorun. If set to N then KUnit
+ tests will not run after initialization unless kunit.autorun=1 is
+ passed to the kernel command line. The test can still be run manually
+ via debugfs interface.
+
+ In most cases this should be left as Y. Only if additional opt-in
+ behavior is needed should this be set to N.
+
endif # KUNIT
@@ -145,7 +145,7 @@ static ssize_t debugfs_run(struct file *file,
struct inode *f_inode = file->f_inode;
struct kunit_suite *suite = (struct kunit_suite *) f_inode->i_private;
- __kunit_test_suites_init(&suite, 1);
+ __kunit_test_suites_init(&suite, 1, true);
return count;
}
@@ -29,6 +29,22 @@ const char *kunit_action(void)
return action_param;
}
+/*
+ * Run KUnit tests after initialization
+ */
+#ifdef CONFIG_KUNIT_AUTORUN_ENABLED
+static bool autorun_param = true;
+#else
+static bool autorun_param;
+#endif
+module_param_named(autorun, autorun_param, bool, 0);
+MODULE_PARM_DESC(autorun, "Run KUnit tests after initialization");
+
+bool kunit_autorun(void)
+{
+ return autorun_param;
+}
+
static char *filter_glob_param;
static char *filter_param;
static char *filter_action_param;
@@ -260,13 +276,14 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
void kunit_exec_run_tests(struct kunit_suite_set *suite_set, bool builtin)
{
size_t num_suites = suite_set->end - suite_set->start;
+ bool autorun = kunit_autorun();
- if (builtin || num_suites) {
+ if (autorun && (builtin || num_suites)) {
pr_info("KTAP version 1\n");
pr_info("1..%zu\n", num_suites);
}
- __kunit_test_suites_init(suite_set->start, num_suites);
+ __kunit_test_suites_init(suite_set->start, num_suites, autorun);
}
void kunit_exec_list_tests(struct kunit_suite_set *suite_set, bool include_attr)
@@ -708,7 +708,8 @@ bool kunit_enabled(void)
return enable_param;
}
-int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites)
+int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites,
+ bool run_tests)
{
unsigned int i;
@@ -731,7 +732,8 @@ int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_
for (i = 0; i < num_suites; i++) {
kunit_init_suite(suites[i]);
- kunit_run_tests(suites[i]);
+ if (run_tests)
+ kunit_run_tests(suites[i]);
}
static_branch_dec(&kunit_running);
@@ -312,7 +312,16 @@ def massage_argv(argv: Sequence[str]) -> Sequence[str]:
return list(map(massage_arg, argv))
def get_default_jobs() -> int:
- return len(os.sched_getaffinity(0))
+ if sys.version_info >= (3, 13):
+ if (ncpu := os.process_cpu_count()) is not None:
+ return ncpu
+ raise RuntimeError("os.process_cpu_count() returned None")
+ # See https://github.com/python/cpython/blob/b61fece/Lib/os.py#L1175-L1186.
+ if sys.platform != "darwin":
+ return len(os.sched_getaffinity(0))
+ if (ncpu := os.cpu_count()) is not None:
+ return ncpu
+ raise RuntimeError("os.cpu_count() returned None")
def add_common_opts(parser: argparse.ArgumentParser) -> None:
parser.add_argument('--build_dir',
@@ -125,6 +125,9 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations):
'-append', ' '.join(params + [self._kernel_command_line]),
'-no-reboot',
'-nographic',
+ '-accel', 'kvm',
+ '-accel', 'hvf',
+ '-accel', 'tcg',
'-serial', self._serial] + self._extra_qemu_params
# Note: shlex.join() does what we want, but requires python 3.8+.
print('Running tests with:\n$', ' '.join(shlex.quote(arg) for arg in qemu_command))
@@ -9,4 +9,4 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y''',
qemu_arch='aarch64',
kernel_path='arch/arm64/boot/Image.gz',
kernel_command_line='console=ttyAMA0',
- extra_qemu_params=['-machine', 'virt', '-cpu', 'max,pauth-impdef=on'])
+ extra_qemu_params=['-machine', 'virt', '-cpu', 'max'])
Hi Linus, Please pull the following kunit next update for Linux 6.14-rc1. - fixes struct completion warning - introduces autorun option - adds fallback for os.sched_getaffinity - enables hardware acceleration when available Note: Stephen reported duplicate patch in kunit and driver-core: The following commit is also in the driver-core tree as a different commit (but the same patch): 875aec2357cd ("kunit: platform: Resolve 'struct completion' warning") This is commit 7687c66c18c6 ("kunit: platform: Resolve 'struct completion' warning") in the driver-core tree. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 40384c840ea1944d7c5a392e8975ed088ecf0b37: Linux 6.13-rc1 (2024-12-01 14:28:56 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux_kselftest-kunit-6.14-rc1 for you to fetch changes up to 31691914c392675bdc65d1e72dd8d129a1f0014f: kunit: Introduce autorun option (2025-01-15 09:04:06 -0700) ---------------------------------------------------------------- linux_kselftest-kunit-6.14-rc1 - fixes struct completion warning - introduces autorun option - adds fallback for os.sched_getaffinity - enables hardware acceleration when available ---------------------------------------------------------------- Brian Norris (1): kunit: platform: Resolve 'struct completion' warning Stanislav Kinsburskii (1): kunit: Introduce autorun option Tamir Duberstein (2): kunit: add fallback for os.sched_getaffinity kunit: enable hardware acceleration when available include/kunit/platform_device.h | 1 + include/kunit/test.h | 4 +++- lib/kunit/Kconfig | 12 ++++++++++++ lib/kunit/debugfs.c | 2 +- lib/kunit/executor.c | 21 +++++++++++++++++++-- lib/kunit/test.c | 6 ++++-- tools/testing/kunit/kunit.py | 11 ++++++++++- tools/testing/kunit/kunit_kernel.py | 3 +++ tools/testing/kunit/qemu_configs/arm64.py | 2 +- 9 files changed, 54 insertions(+), 8 deletions(-) ----------------------------------------------------------------