diff options
author | davidgow@google.com <davidgow@google.com> | 2023-12-15 10:39:08 +0300 |
---|---|---|
committer | Shuah Khan <skhan@linuxfoundation.org> | 2023-12-18 23:28:08 +0300 |
commit | d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e (patch) | |
tree | 283ce85c21b45fd4ba3782367727f85afdc6dc4a /lib/kunit/test.c | |
parent | e9f0e21ceb65ea5e450ede7c9b9a5bfc90a403ae (diff) | |
download | linux-d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e.tar.xz |
kunit: Add APIs for managing devices
Tests for drivers often require a struct device to pass to other
functions. While it's possible to create these with
root_device_register(), or to use something like a platform device, this
is both a misuse of those APIs, and can be difficult to clean up after,
for example, a failed assertion.
Add some KUnit-specific functions for registering and unregistering a
struct device:
- kunit_device_register()
- kunit_device_register_with_driver()
- kunit_device_unregister()
These helpers allocate a on a 'kunit' bus which will either probe the
driver passed in (kunit_device_register_with_driver), or will create a
stub driver (kunit_device_register) which is cleaned up on test shutdown.
Devices are automatically unregistered on test shutdown, but can be
manually unregistered earlier with kunit_device_unregister() in order
to, for example, test device release code.
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'lib/kunit/test.c')
-rw-r--r-- | lib/kunit/test.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/kunit/test.c b/lib/kunit/test.c index 088489856db8..14a77b2d702a 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -19,6 +19,7 @@ #include <linux/sched.h> #include "debugfs.h" +#include "device-impl.h" #include "hooks-impl.h" #include "string-stream.h" #include "try-catch-impl.h" @@ -900,6 +901,8 @@ static int __init kunit_init(void) kunit_install_hooks(); kunit_debugfs_init(); + + kunit_bus_init(); #ifdef CONFIG_MODULES return register_module_notifier(&kunit_mod_nb); #else |