Re: [PATCH 1/2 v2] lib/vsprintf: Remove static_branch_likely() from __ptr_to_hashval().

[Jason A. Donenfeld]

Also,

On Fri, Jul 29, 2022 at 05:47:15PM +0200, Sebastian Andrzej Siewior wrote:
>  		if (!filled) {
>  			get_random_bytes(&ptr_key, sizeof(ptr_key));
> -			queue_work(system_unbound_wq, &enable_ptr_key_work);
> +			/* Pairs with smp_rmb() before reading ptr_key. */
> +			smp_wmb();
> +			WRITE_ONCE(filled_random_ptr_key, true);
>  			filled = true;

Also, should `filled` be changed there?

Jason