Re: [PATCH 4/6] [v2] arc: use generic strncpy/strnlen from_user

Arnd Bergmann
2021-05-17T06:48:29Z

On Mon, May 17, 2021 at 8:16 AM Christoph Hellwig <hch@lst.de> wrote:
>
> On Sat, May 15, 2021 at 12:18:01PM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> >
> > Most per-architecture versions of these functions are broken
> > in some form, and they are almost certainly slower than the
> > generic code as well.
> >
> > This version is fairly slow because it always does byte accesses
> > even for aligned data, and its checks for user_addr_max() differ
> > from the generic code.
> >
> > Remove the ones for arc and instead use the generic version.
>
> Same comment as for hexaon before.

Changed now.

Arnd