Messages in this thread | | | From | Andrey Konovalov <> | Date | Wed, 27 Jan 2021 22:25:56 +0100 | Subject | Re: [PATCH] kasan: export kasan_poison |
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On Mon, Jan 25, 2021 at 12:28 PM Arnd Bergmann <arnd@kernel.org> wrote: > > From: Arnd Bergmann <arnd@arndb.de> > > The unit test module fails to build after adding a reference > to kasan_poison: > > ERROR: modpost: "kasan_poison" [lib/test_kasan.ko] undefined! > > Export this symbol to make it available to loadable modules.
Could you share the config you used to trigger this?
> Fixes: b9b322c2bba9 ("kasan: add match-all tag tests") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > mm/kasan/shadow.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c > index de6b3f074742..32e7a5c148e6 100644 > --- a/mm/kasan/shadow.c > +++ b/mm/kasan/shadow.c > @@ -94,6 +94,7 @@ void kasan_poison(const void *address, size_t size, u8 value) > > __memset(shadow_start, value, shadow_end - shadow_start); > } > +EXPORT_SYMBOL_GPL(kasan_poison);
Should this be _GPL? All of the other EXPORT_SYMBOL() we use in KASAN are without the GPL suffix.
> > void kasan_unpoison(const void *address, size_t size) > { > -- > 2.29.2 >
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