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From:   Daniel Latypov <dlatypov@google.com>
Date:   Tue, 21 Jun 2022 15:19:10 -0700
Message-ID: <CAGS_qxp6ZK9K0Sy1JcuU-SGqChOyr6-+5HDxgesOpxjxvDkiXQ@mail.gmail.com>
Subject: Re: [PATCH v2 5/5] mmc: sdhci-of-aspeed: test: Use kunit_test_suite() macro
To:     David Gow <davidgow@google.com>
Cc:     Brendan Higgins <brendanhiggins@google.com>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Jeremy Kerr <jk@codeconstruct.com.au>,
        Shuah Khan <skhan@linuxfoundation.org>,
        Andrew Jeffery <andrew@aj.id.au>,
        Mika Westerberg <mika.westerberg@linux.intel.com>,
        Andra Paraschiv <andraprs@amazon.com>,
        Longpeng <longpeng2@huawei.com>, Paraschiv@google.com,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        =?UTF-8?B?TWHDrXJhIENhbmFs?= <maira.canal@usp.br>,
        linux-mmc@vger.kernel.org, linux-aspeed@lists.ozlabs.org,
        openbmc@lists.ozlabs.org, linux-usb@vger.kernel.org,
        linux-modules@vger.kernel.org,
        Matt Johnston <matt@codeconstruct.com.au>
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 On Tue, Jun 21, 2022 at 1:54 AM David Gow <davidgow@google.com> wrote:
>
> The kunit_test_suite() macro is no-longer incompatible with module_add,
> so its use can be reinstated.
>
> Since this fixes parsing with builtins and kunit_tool, also enable the
> test by default when KUNIT_ALL_TESTS is enabled.
>
> The test can now be run via kunit_tool with:
>         ./tools/testing/kunit/kunit.py run --arch=x86_64 \
>         --kconfig_add CONFIG_OF=y --kconfig_add CONFIG_OF_ADDRESS=y \
>         --kconfig_add CONFIG_MMC=y --kconfig_add CONFIG_MMC_SDHCI=y \
>         --kconfig_add CONFIG_MMC_SDHCI_PLTFM=y \
>         --kconfig_add CONFIG_MMC_SDHCI_OF_ASPEED=y \
>         'sdhci-of-aspeed'
>
> (It may be worth adding a .kunitconfig at some point, as there are
> enough dependencies to make that command scarily long.)
>
> Signed-off-by: David Gow <davidgow@google.com>

Acked-by: Daniel Latypov <dlatypov@google.com>

Minor, optional suggestion below.

>  static int __init aspeed_sdc_init(void)
> @@ -639,12 +620,6 @@ static int __init aspeed_sdc_init(void)
>         if (rc < 0)
>                 goto cleanup_sdhci;
>
> -       rc = aspeed_sdc_tests_init();
> -       if (rc < 0) {
> -               platform_driver_unregister(&aspeed_sdc_driver);
> -               goto cleanup_sdhci;
> -       }
> -
>         return 0;
>
>  cleanup_sdhci:

This goto was added in 4af307f57426 ("mmc: sdhci-of-aspeed: Fix
kunit-related build error") to allow for this extra call to
aspeed_sdc_tests_init().

This could now be reverted back to what is
        rc = platform_driver_register(&aspeed_sdc_driver);
        if (rc < 0)
               platform_driver_unregister(&aspeed_sdhci_driver);

        return rc;

but let's see what the maintainers think.