linux-kernel - Re: [PATCH v2 linux-kselftest-test 1/3] kunit: allow kunit tests to be loaded as a module

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Message-ID: <20191018122142.GC11244@42.do-not-panic.com>
Date:   Fri, 18 Oct 2019 12:21:42 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Alan Maguire <alan.maguire@...cle.com>,
        Matthias Maennich <maennich@...gle.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        catalin.marinas@....com, joe.lawrence@...hat.com,
        penguin-kernel@...ove.sakura.ne.jp, schowdary@...dia.com,
        urezki@...il.com, andriy.shevchenko@...ux.intel.com,
        changbin.du@...el.com, kunit-dev@...glegroups.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Knut Omang <knut.omang@...cle.com>
Subject: Re: [PATCH v2 linux-kselftest-test 1/3] kunit: allow kunit tests to
 be loaded as a module

On Thu, Oct 17, 2019 at 07:32:18PM +0100, Alan Maguire wrote:
> kunit needs a non-exported global kernel symbol 
> (sysctl_hung_task_timeout_secs).

Sounds like a perfect use case for the new symbol namespaces [0]. We
wouldn't want random drivers importing this namespace, but for kunit it
would seem reasonable.

[0] https://lwn.net/Articles/798254/

  Luis