# Re: \[PATCH v5 4/6\] mm: simplify compat numa syscalls

- From: Heiko Carstens \<hca@linux.ibm.com\>
- Date: 2021-07-27 17:29:27 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/07/1459842
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/07/1459673/t.md

```text
On Tue, Jul 27, 2021 at 04:48:57PM +0200, Arnd Bergmann wrote:
> ---
>  include/linux/compat.h |  17 ++--
>  mm/mempolicy.c         | 175 +++++++++++++----------------------------
>  2 files changed, 63 insertions(+), 129 deletions(-)
...
> +static int get_bitmap(unsigned long *mask, const unsigned long __user *nmask,
> +		      unsigned long maxnode)
> +{
> +	unsigned long nlongs = BITS_TO_LONGS(maxnode);
> +	int ret;
> +
> +	if (in_compat_syscall())
> +		ret = compat_get_bitmap(mask,
> +					(const compat_ulong_t __user *)nmask,
> +					maxnode);

compat_ptr() conversion for e.g. nmask is missing with the next patch
which removes the compat system calls.
Is that intended or am I missing something?

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
```