[PATCH 1/3] riscv: optimized memcpy

Bin Meng bmeng.cn at gmail.com
Tue Jun 15 17:33:21 PDT 2021

On Wed, Jun 16, 2021 at 12:12 AM Emil Renner Berthing <kernel at esmil.dk> wrote:
> On Tue, 15 Jun 2021 at 15:29, Bin Meng <bmeng.cn at gmail.com> wrote:
> > ...
> > Yes, Gary Guo sent one patch long time ago against the broken assembly
> > version, but that patch was still not applied as of today.
> > https://patchwork.kernel.org/project/linux-riscv/patch/20210216225555.4976-1-gary@garyguo.net/
> >
> > I suggest Matteo re-test using Gary's version.
> That's a good idea, but if you read the replies to Gary's original patch
> https://lore.kernel.org/linux-riscv/20210216225555.4976-1-gary@garyguo.net/
> .. both Gary, Palmer and David would rather like a C-based version.
> This is one attempt at providing that.

Yep, I prefer C as well :)

But if you check commit 04091d6, the assembly version was introduced
for KASAN. So if we are to change it back to C, please make sure KASAN
is not broken.


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