RE: [PATCH v2 08/12] iommu/vt-d: Replace spin_lock_irqsave() with spin_lock()

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Tuesday, June 14, 2022 10:52 AM
> 
> The iommu->lock is used to protect changes in root/context/pasid tables
> and domain ID allocation. There's no use case to change these resources
> in any interrupt context. Hence there's no need to disable interrupts
> when helding the spinlock.
> 
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

with this as one-place to changing irqsave for all previous patches:

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>