Re: [PATCHv6 03/16] x86/alternatives: Disable LASS when patching kernel alternatives

[Dave Hansen]

On 6/20/25 06:53, Kirill A. Shutemov wrote:
> +/*
> + * poking_init() initializes the text poking address from the lower half of the
> + * address space. Relax LASS enforcement when accessing the poking address.
> + */

This does not read quite right. I think there's some unnecessary
confusiuon about initializing the address versus the contents. But
either way, how about:

/*
 * Text poking creates and uses a mapping in the lower half of the
 * address space. Relax LASS enforcement when accessing the poking
 * address.
 */

>  static void text_poke_memset(void *dst, const void *src, size_t len)
>  {
>  	int c = *(const int *)src;
>  
> -	memset(dst, c, len);
> +	lass_stac();
> +	__inline_memset(dst, c, len);
> +	lass_clac();
>  }

Yeah, this patch small enough that lass_{stac,clac}() are definitely
misplaced in this series. Just move them into this patch.