Re: [PATCH 4/6] x86/gsseg: move local_irq_save/restore() into asm_load_gs_index()

[Peter Zijlstra]

On Thu, Oct 06, 2022 at 08:40:39AM -0700, Xin Li wrote:
>  SYM_FUNC_START(asm_load_gs_index)
>  	FRAME_BEGIN
> +	pushf
> +	pop	%rax
> +	andl	$X86_EFLAGS_IF, %eax	/* Interrupts enabled? */
> +	jz	1f
> +	cli
> +1:

Why the pop,andl,jz ? AFAICT our arch_local_irq_save() doesn't even
bother with that, why does this function.