linux-kernel - Re: [PATCH v2 2/5] kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test

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Message-ID: <CAGS_qxqnCvTnE-cGd-LNnhCMsz5YE3Ea9jw_OqNDwjQQ9TGpGg@mail.gmail.com>
Date:   Tue, 21 Jun 2022 13:29:24 -0700
From:   Daniel Latypov <dlatypov@...gle.com>
To:     David Gow <davidgow@...gle.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Andrew Jeffery <andrew@...id.au>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andra Paraschiv <andraprs@...zon.com>,
        Longpeng <longpeng2@...wei.com>, Paraschiv@...gle.com,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Maíra Canal <maira.canal@....br>,
        linux-mmc@...r.kernel.org, linux-aspeed@...ts.ozlabs.org,
        openbmc@...ts.ozlabs.org, linux-usb@...r.kernel.org,
        linux-modules@...r.kernel.org,
        Matt Johnston <matt@...econstruct.com.au>
Subject: Re: [PATCH v2 2/5] kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites

On Tue, Jun 21, 2022 at 1:54 AM 'David Gow' via KUnit Development
<kunit-dev@...glegroups.com> wrote:
>
> From: Daniel Latypov <dlatypov@...gle.com>
>
> We currently store kunit suites in the .kunit_test_suites ELF section as
> a `struct kunit_suite***` (modulo some `const`s).
> For every test file, we store a struct kunit_suite** NULL-terminated array.
>
> This adds quite a bit of complexity to the test filtering code in the
> executor.
>
> Instead, let's just make the .kunit_test_suites section contain a single
> giant array of struct kunit_suite pointers, which can then be directly
> manipulated. This array is not NULL-terminated, and so none of the test
> filtering code needs to NULL-terminate anything.
>
> Tested-by: Maíra Canal <maira.canal@....br>
> Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> Co-developed-by: David Gow <davidgow@...gle.com>
> Signed-off-by: David Gow <davidgow@...gle.com>
> ---
>
> Changes since v1:
> https://lore.kernel.org/linux-kselftest/20220618090310.1174932-3-davidgow@google.com/
> - No longer NULL-terminate generated suite_sets

Nice!
Thanks for picking and cleaning this up!

Daniel