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    SubjectRe: [PATCH mm] kasan: export HW_TAGS symbols for KUnit tests
    On Fri, Feb 12, 2021 at 9:16 PM Andrew Morton <akpm@linux-foundation.org> wrote:
    >
    > On Fri, 12 Feb 2021 21:08:52 +0100 Andrey Konovalov <andreyknvl@google.com> 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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