Re: [PATCH mm] kasan: export HW_TAGS symbols for KUnit tests

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On Fri, Feb 12, 2021 at 9:16 PM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Fri, 12 Feb 2021 21:08:52 +0100 Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote:
>
> > Currently, building KASAN-KUnit tests as a module fails with:
> >
> > ERROR: modpost: "mte_enable_kernel" [lib/test_kasan.ko] undefined!
> > ERROR: modpost: "mte_set_report_once" [lib/test_kasan.ko] undefined!
> >
> > This change adds KASAN wrappers for mte_enable_kernel() and
> > mte_set_report_once() and only defines and exports them when KASAN-KUnit
> > tests are enabled.
> >
> > The wrappers aren't defined when tests aren't enabled to avoid misuse.
> > The mte_() functions aren't exported directly to avoid having low-level
> > KASAN ifdefs in the arch code.
> >
>
> Please confirm that this is applicable to current Linus mainline?

It's not applicable. KUnit tests for HW_TAGS aren't supported there,
the patches for that are in mm only. So no need to put it into 5.11.

> Today is pretty much the last day for getting material into 5.11, and
> this patch has been churning somewhat.
>
> So I think it would be better to merge this into 5.12-rc1, with a
> cc:stable so it goes into 5.11.1.
>
> For which we'll need a Fixes:, please?
>
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