Re: [PATCH] riscv: atomic: Using ARCH_ATOMIC in asm/atomic.h

From: Guo Ren
Date: Thu Apr 15 2021 - 09:15:48 EST


Sorry, forgot riscv32. I would fix that.

On Thu, Apr 15, 2021 at 4:52 PM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> On Thu, Apr 15, 2021 at 07:39:22AM +0000, guoren@xxxxxxxxxx wrote:
> > - Add atomic_andnot_* operation
>
> > @@ -76,6 +59,12 @@ ATOMIC_OPS(sub, add, -i)
> > ATOMIC_OPS(and, and, i)
> > ATOMIC_OPS( or, or, i)
> > ATOMIC_OPS(xor, xor, i)
> > +ATOMIC_OPS(andnot, and, -i)
>
> ~i, surely.



--
Best Regards
Guo Ren

ML: https://lore.kernel.org/linux-csky/