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Date:   Fri, 25 Mar 2022 13:38:29 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Kees Cook <keescook@...omium.org>, shuah@...nel.org
Cc:     Willem de Bruijn <willemb@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-hardening@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 2/2] selftests/harness: Pass variant to teardown

On 3/24/22 5:19 PM, Kees Cook wrote:
> From: Willem de Bruijn <willemb@...gle.com>
> 
> FIXTURE_VARIANT data is passed to FIXTURE_SETUP and TEST_F as "variant".
> 
> In some cases, the variant will change the setup, such that expectations
> also change on teardown. Also pass variant to FIXTURE_TEARDOWN.
> 
> The new FIXTURE_TEARDOWN logic is identical to that in FIXTURE_SETUP,
> right above.
> 
> Signed-off-by: Willem de Bruijn <willemb@...gle.com>
> Reviewed-by: Jakub Kicinski <kuba@...nel.org>
> Acked-by: Kees Cook <keescook@...omium.org>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> Link: https://lore.kernel.org/r/20201210231010.420298-1-willemdebruijn.kernel@gmail.com
> ---
>   tools/testing/selftests/kselftest_harness.h | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
> index bef08f824eb5..f5cb5fd1d974 100644
> --- a/tools/testing/selftests/kselftest_harness.h
> +++ b/tools/testing/selftests/kselftest_harness.h
> @@ -291,7 +291,9 @@
>   #define FIXTURE_TEARDOWN(fixture_name) \
>   	void fixture_name##_teardown( \
>   		struct __test_metadata __attribute__((unused)) *_metadata, \
> -		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
> +		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
> +		const FIXTURE_VARIANT(fixture_name) \
> +			__attribute__((unused)) *variant)
>   
>   /**
>    * FIXTURE_VARIANT() - Optionally called once per fixture
> @@ -306,9 +308,9 @@
>    *       ...
>    *     };
>    *
> - * Defines type of constant parameters provided to FIXTURE_SETUP() and TEST_F()
> - * as *variant*. Variants allow the same tests to be run with different
> - * arguments.
> + * Defines type of constant parameters provided to FIXTURE_SETUP(), TEST_F() and
> + * FIXTURE_TEARDOWN as *variant*. Variants allow the same tests to be run with
> + * different arguments.
>    */
>   #define FIXTURE_VARIANT(fixture_name) struct _fixture_variant_##fixture_name
>   
> @@ -391,7 +393,7 @@
>   			fixture_name##_##test_name(_metadata, &self, variant->data); \
>   		} \
>   		if (_metadata->setup_completed) \
> -			fixture_name##_teardown(_metadata, &self); \
> +			fixture_name##_teardown(_metadata, &self, variant->data); \
>   		__test_check_assert(_metadata); \
>   	} \
>   	static struct __test_metadata \
> 

Looks good to me.

Reviewed-by: Shuah Khan <skhan@...uxfoundation.org>

thanks,
-- Shuah

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