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

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Date:   Wed, 3 Aug 2022 16:35:33 -0400
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     David Gow <davidgow@...gle.com>
Cc:     Daniel Latypov <dlatypov@...gle.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Ulf Hansson <ulf.hansson@...aro.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, Jul 15, 2022 at 12:04 AM 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>

Acked-by: Brendan Higgins <brendanhiggins@...gle.com>