Re: [PATCH] ARM: export __memset/__memcpy/__memmove

From: Linus Walleij
Date: Fri Jun 20 2025 - 16:27:18 EST


On Fri, Jun 20, 2025 at 1:13 PM Arnd Bergmann <arnd@xxxxxxxxxx> wrote:

> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> When KASAN is locally disabled for one file, the string functions
> get redirected to internal helpers, but those are not actually exported,
> so this only works in built-in code but fails for loadable modules:
>
> ERROR: modpost: "__memset" [crypto/ecc.ko] undefined!
> ERROR: modpost: "__memcpy" [crypto/ecc.ko] undefined!
>
> Add the missig exports.

missing

>
> Fixes: d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for KASan")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij