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Diffstat (limited to '')
| -rw-r--r-- | include/kunit/resource.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/kunit/resource.h b/include/kunit/resource.h index c7383e90f5..4ad69a2642 100644 --- a/include/kunit/resource.h +++ b/include/kunit/resource.h @@ -391,6 +391,27 @@ void kunit_remove_resource(struct kunit *test, struct kunit_resource *res); typedef void (kunit_action_t)(void *); /** + * KUNIT_DEFINE_ACTION_WRAPPER() - Wrap a function for use as a deferred action. + * + * @wrapper: The name of the new wrapper function define. + * @orig: The original function to wrap. + * @arg_type: The type of the argument accepted by @orig. + * + * Defines a wrapper for a function which accepts a single, pointer-sized + * argument. This wrapper can then be passed to kunit_add_action() and + * similar. This should be used in preference to casting a function + * directly to kunit_action_t, as casting function pointers will break + * control flow integrity (CFI), leading to crashes. + */ +#define KUNIT_DEFINE_ACTION_WRAPPER(wrapper, orig, arg_type) \ + static void wrapper(void *in) \ + { \ + arg_type arg = (arg_type)in; \ + orig(arg); \ + } + + +/** * kunit_add_action() - Call a function when the test ends. * @test: Test case to associate the action with. * @action: The function to run on test exit |