# Re: \[PATCH v4 07/11\] mm: kasan: Use is\_kernel() helper

- From: Andrey Konovalov \<andreyknvl@gmail.com\>
- Date: 2021-10-03 17:19:27 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/10/1529062
- Thread: https://ratatoskr.run/linux-arch/2021/09/1526626/t.md

```text
On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang [ref] wrote:
>
> Directly use is_kernel() helper in kernel_or_module_addr().
>
> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
> Cc: Alexander Potapenko <glider@google.com>
> Cc: Andrey Konovalov <andreyknvl@gmail.com>
> Cc: Dmitry Vyukov <dvyukov@google.com>
> Signed-off-by: Kefeng Wang <redacted>
> ---
>  mm/kasan/report.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/report.c b/mm/kasan/report.c
> index 3239fd8f8747..1c955e1c98d5 100644
> --- a/mm/kasan/report.c
> +++ b/mm/kasan/report.c
> @@ -226,7 +226,7 @@ static void describe_object(struct kmem_cache *cache, void *object,
>
>  static inline bool kernel_or_module_addr(const void *addr)
>  {
> -       if (addr >= (void *)_stext && addr < (void *)_end)
> +       if (is_kernel((unsigned long)addr))
>                 return true;
>         if (is_module_address((unsigned long)addr))
>                 return true;
> --
> 2.26.2
>

Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
```