On Mon, Aug 22, 2022 at 10:11:10PM +0800, Tuo Cao wrote: > it is unnecessary to call spin_lock_irqsave in a interrupt handler. Yes, but it is safer to do so, right? Why is this change needed? Did you test it on real hardware to verify it works? We need a lot more information in the changelog text before being able to accept this. thanks, greg k-h