[PATCH 4/6] [v2] arc: use generic strncpy/strnlen from_user
arnd at kernel.org
Sun May 16 23:47:18 PDT 2021
On Mon, May 17, 2021 at 8:16 AM Christoph Hellwig <hch at lst.de> wrote:
> On Sat, May 15, 2021 at 12:18:01PM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd at 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.
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