RE: [PATCH v3 10/11] iommu/vt-d: Use device_domain_lock accurately

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Wednesday, June 29, 2022 3:47 PM
> 
> +	spin_lock_irqsave(&device_domain_lock, flags);
>  	list_for_each_entry(info, &domain->devices, link) {
> -		if (!info->dev)
> -			continue;
> -

suppose you can replace all spin_lock_irqsave() with spin_lock()
in patch5 instead of leaving some replacement to next patch.