linux-kernel - Re: [PATCH] mmc: sdhci-of-aspeed: test: Fix dependencies when KUNIT=m

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Date:   Tue, 19 Jul 2022 10:41:28 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     David Gow <davidgow@...gle.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>, kunit-dev@...glegroups.com,
        linux-kselftest@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-aspeed@...ts.ozlabs.org, Sadiya Kazi <sadiyakazi@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] mmc: sdhci-of-aspeed: test: Fix dependencies when KUNIT=m

On Fri, 15 Jul 2022 at 06:04, David Gow <davidgow@...gle.com> wrote:
>
> While the sdhci-of-aspeed KUnit tests do work when builtin, and do work
> when KUnit itself is being built as a module, the two together break.
>
> This is because the KUnit tests (understandably) depend on KUnit, so a
> built-in test cannot build if KUnit is a module.
>
> Fix this by adding a dependency on (MMC_SDHCI_OF_ASPEED=m || KUNIT=y),
> which only excludes this one problematic configuration.
>
> This was reported on a nasty openrisc-randconfig run by the kernel test
> robot, though for some reason (compiler optimisations removing the test
> code?) I wasn't able to reproduce it locally on x86:
> https://lore.kernel.org/linux-mm/202207140122.fzhlf60k-lkp@intel.com/T/
>
> Fixes: 291cd54e5b05 ("mmc: sdhci-of-aspeed: test: Use kunit_test_suite() macro")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: David Gow <davidgow@...gle.com>

I assume this should go together with the other recent kunit patches,
so please add:

Acked-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  drivers/mmc/host/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> index 10c563999d3d..e63608834411 100644
> --- a/drivers/mmc/host/Kconfig
> +++ b/drivers/mmc/host/Kconfig
> @@ -171,6 +171,7 @@ config MMC_SDHCI_OF_ASPEED
>  config MMC_SDHCI_OF_ASPEED_TEST
>         bool "Tests for the ASPEED SDHCI driver" if !KUNIT_ALL_TESTS
>         depends on MMC_SDHCI_OF_ASPEED && KUNIT
> +       depends on (MMC_SDHCI_OF_ASPEED=m || KUNIT=y)
>         default KUNIT_ALL_TESTS
>         help
>           Enable KUnit tests for the ASPEED SDHCI driver. Select this
> --
> 2.37.0.170.g444d1eabd0-goog
>