linux-kernel - Re: [PATCH v3 1/6] kunit: move KUNIT_TABLE out of INIT

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Message-ID: <CA+GJov5qipT2EV2+UjtRzvjjtTA_OOtOgZKbRiitmYpbrXrE9A@mail.gmail.com>
Date:   Mon, 11 Dec 2023 17:08:26 -0500
From:   Rae Moar <rmoar@...gle.com>
To:     David Gow <davidgow@...gle.com>
Cc:     shuah@...nel.org, dlatypov@...gle.com, brendan.higgins@...ux.dev,
        sadiyakazi@...gle.com, keescook@...omium.org, arnd@...db.de,
        linux-kselftest@...r.kernel.org, linux-arch@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/6] kunit: move KUNIT_TABLE out of INIT_DATA

On Sat, Dec 9, 2023 at 2:48 AM David Gow <davidgow@...gle.com> wrote:
>
> On Tue, 5 Dec 2023 at 06:19, Rae Moar <rmoar@...gle.com> wrote:
> >
> > Alter the linker section of KUNIT_TABLE to move it out of INIT_DATA and
> > into DATA_DATA.
> >
> > Data for KUnit tests does not need to be in the init section.
> >
> > In order to run tests again after boot the KUnit data cannot be labeled as
> > init data as the kernel could write over it.
> >
> > Add a KUNIT_INIT_TABLE in the next patch for KUnit tests that test init
> > data/functions.
> >
> > Signed-off-by: Rae Moar <rmoar@...gle.com>
> > ---
>
> I think this actually fixes a potential bug, as we loop through the
> list of suites after init has ended in the debugfs logic.
>
> So maybe this is:
> Fixes: 90a025a859a3 ("vmlinux.lds.h: add linker section for KUnit test suites")
>
> Regardless, I'd love to get this in, even if we don't manage to get
> the rest of the series in soon.
>
> Reviewed-by: David Gow <davidgow@...gle.com>
>
> Cheers,
> -- David

Hello!

Thanks for reviewing! I will be adding this fixes tag. Should I make
this a separate patch for the next version?

Thanks!
-Rae

>
> >  include/asm-generic/vmlinux.lds.h | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
> > index bae0fe4d499b..1107905d37fc 100644
> > --- a/include/asm-generic/vmlinux.lds.h
> > +++ b/include/asm-generic/vmlinux.lds.h
> > @@ -370,7 +370,8 @@
> >         BRANCH_PROFILE()                                                \
> >         TRACE_PRINTKS()                                                 \
> >         BPF_RAW_TP()                                                    \
> > -       TRACEPOINT_STR()
> > +       TRACEPOINT_STR()                                                \
> > +       KUNIT_TABLE()
> >
> >  /*
> >   * Data section helpers
> > @@ -699,8 +700,7 @@
> >         THERMAL_TABLE(governor)                                         \
> >         EARLYCON_TABLE()                                                \
> >         LSM_TABLE()                                                     \
> > -       EARLY_LSM_TABLE()                                               \
> > -       KUNIT_TABLE()
> > +       EARLY_LSM_TABLE()
> >
> >  #define INIT_TEXT                                                      \
> >         *(.init.text .init.text.*)                                      \
> >
> > base-commit: b85ea95d086471afb4ad062012a4d73cd328fa86
> > --
> > 2.43.0.rc2.451.g8631bc7472-goog
> >