On 1/25/21 11:28 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
>
> 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.
>
> Fixes: b9b322c2bba9 ("kasan: add match-all tag tests")
> Signed-off-by: Arnd Bergmann <[email protected]>
Thanks I just stumbled on the same issue ;)
Reviewed-by: Vincenzo Frascino <[email protected]>
> ---
> 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);
>
> void kasan_unpoison(const void *address, size_t size)
> {
>
--
Regards,
Vincenzo
