[PATCH 2/5 v16] ARM: Replace string mem* functions for KASan

[Linus Walleij]

On Fri, Nov 6, 2020 at 10:44 AM Nathan Chancellor
<natechancellor at gmail.com> wrote:
> On Fri, Nov 06, 2020 at 09:28:09AM +0100, Ard Biesheuvel wrote:

> > AFAIK there is an incompatible change in -next to change the
> > definition of the __alias() macro
>
> Indeed. The following diff needs to be applied as a fixup to
> treewide-remove-stringification-from-__alias-macro-definition.patch in
> mmotm.
>
> Cheers,
> Nathan
>
> diff --git a/arch/arm/boot/compressed/string.c b/arch/arm/boot/compressed/string.c
> index 8c0fa276d994..cc6198f8a348 100644
> --- a/arch/arm/boot/compressed/string.c
> +++ b/arch/arm/boot/compressed/string.c
> @@ -21,9 +21,9 @@
>  #undef memcpy
>  #undef memmove
>  #undef memset
> -void *__memcpy(void *__dest, __const void *__src, size_t __n) __alias(memcpy);
> -void *__memmove(void *__dest, __const void *__src, size_t count) __alias(memmove);
> -void *__memset(void *s, int c, size_t count) __alias(memset);
> +void *__memcpy(void *__dest, __const void *__src, size_t __n) __alias("memcpy");
> +void *__memmove(void *__dest, __const void *__src, size_t count) __alias("memmove");
> +void *__memset(void *s, int c, size_t count) __alias("memset");
>  #endif
>
>  void *memcpy(void *__dest, __const void *__src, size_t __n)

Aha. So shall we submit this to Russell? I figure that his git will not
build *without* the changes from mmotm?

That tree isn't using git either is it?

Is this one of those cases where we should ask Stephen R
to carry this patch on top of -next until the merge window?

Yours,
Linus Walleij