Re: [PATCH v5 12/37] kmsan: Introduce memset_no_sanitize_memory()

Alexander Potapenko
2024-06-20T08:15:09Z

On Wed, Jun 19, 2024 at 5:45 PM Ilya Leoshkevich <iii@linux.ibm.com> wrote:
>
> Add a wrapper for memset() that prevents unpoisoning. This is useful
> for filling memory allocator redzones.
>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>

> ---
> include/linux/kmsan.h | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/include/linux/kmsan.h b/include/linux/kmsan.h
> index 23de1b3d6aee..5f50885f2023 100644
> --- a/include/linux/kmsan.h
> +++ b/include/linux/kmsan.h
> @@ -255,6 +255,14 @@ void kmsan_enable_current(void);
> */
> void kmsan_disable_current(void);
>
> +/*
> + * memset_no_sanitize_memory(): memset() without KMSAN instrumentation.
> + */
Please make this a doc comment, like in the rest of the file.
(Please also fix kmsan_enable_current/kmsan_disable_current in the
respective patch)