Re: [PATCH v2 07/18] nios2: drop access_ok() check from __put_user()

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On Thu, Feb 24, 2022 at 12:30 AM Dinh Nguyen <dinguyen@xxxxxxxxxx> wrote:
On 2/16/22 07:13, Arnd Bergmann wrote: From: Arnd Bergmann <arnd@xxxxxxxx>

Unlike other architectures, the nios2 version of __put_user() has an
extra check for access_ok(), preventing it from being used to implement
__put_kernel_nofault().

Split up put_user() along the same lines as __get_user()/get_user()

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Acked-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>

Thanks! Could you also have a look at patch 2 (uaccess: fix nios2 and
microblaze get_user_8)? That one is actually more critical, and should
be backported to stable kernels.

       Arnd



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