[PATCH v2 11/14] powerpc/64s: Clear/restore caller gprs in syscall interrupt/return

[Segher Boessenkool]

Hi!

On Mon, Jul 25, 2022 at 04:31:11PM +1000, Rohan McLure wrote:
> +	/*
> +	 * Zero user registers to prevent influencing speculative execution
> +	 * state of kernel code.
> +	 */
> +	NULLIFY_GPRS(5, 12)
> +	NULLIFY_NVGPRS()

"Nullify" means "invalidate", which is not what this does or is for :-(


Segher