linux-kernel - Re: [PATCH 0/4] selftests, sysctl, lib: Fix prime

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Date:   Fri, 29 May 2020 23:39:42 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Shuah Khan <skhan@...uxfoundation.org>
Cc:     "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shuah Khan <shuah@...nel.org>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>
Subject: Re: [PATCH 0/4] selftests, sysctl, lib: Fix prime_numbers and
 sysctl test to run

On Fri, 29 May 2020 08:14:39 -0600
Shuah Khan <skhan@...uxfoundation.org> wrote:

> On 5/28/20 8:51 AM, Masami Hiramatsu wrote:
> > Hi,
> > 
> > Recently, I found some tests were always skipped.
> > Here is a series of patches to fix those issues.
> > 
> > The prime_numbers test is skipped in some cases because
> > prime_numbers.ko is not always compiled.
> > Since the CONFIG_PRIME_NUMBERS is not independently
> > configurable item (it has no title and help), it is enabled
> > only if other configs (DRM_DEBUG_SELFTEST etc.) select it.
> > 
> > To fix this issue, I added a title and help for
> > CONFIG_PRIME_NUMBERS.
> > 
> > The sysctl test is skipped because
> >   - selftests/sysctl/config requires CONFIG_TEST_SYSCTL=y. But
> >     since lib/test_sysctl.c doesn't use module_init(), the
> >     test_syscall is not listed under /sys/module/ and the
> >     test script gives up.
> >   - Even if we make CONFIG_TEST_SYSCTL=m, the test script checks
> >     /sys/modules/test_sysctl before loading module and gives up.
> >   - Ayway, since the test module introduces useless sysctl
> >     interface to the kernel, it would better be a module.
> > 
> > This series includes fixes for above 3 points.
> >   - Fix lib/test_sysctl.c to use module_init()
> >   - Fix tools/testing/selftests/sysctl/sysctl.sh to try to load
> >     test module if it is not loaded (nor embedded).
> >   - Fix tools/testing/selftests/sysctl/config to require
> >     CONFIG_TEST_SYSCTL=m, not y.
> > 
> > Thank you,
> > 
> > ---
> > 
> > Masami Hiramatsu (4):
> >        lib: Make prime number generator independently selectable
> >        lib: Make test_sysctl initialized as module
> >        selftests/sysctl: Fix to load test_sysctl module
> >        selftests/sysctl: Make sysctl test driver as a module
> > 
> > 
> >   lib/math/Kconfig                         |    7 ++++++-
> >   lib/test_sysctl.c                        |    2 +-
> >   tools/testing/selftests/sysctl/config    |    2 +-
> >   tools/testing/selftests/sysctl/sysctl.sh |   13 ++-----------
> >   4 files changed, 10 insertions(+), 14 deletions(-)
> > 
> > --
> > Masami Hiramatsu (Linaro) <mhiramat@...nel.org>
> > 
> 
> Thanks Masami. I see Kees reviewing patches. I will wait for Luis to
> weigh in on patch 2 before pulling this series in.

OK, Thanks Shuah! 


-- 
Masami Hiramatsu <mhiramat@...nel.org>