Re: Backport request

[Greg KH <gregkh@linuxfoundation.org>]

On Wed, Jul 17, 2019 at 12:08:38AM +0200, Thomas Gleixner wrote:
> Folks!
> 
> There are more and more people worried about these usually harmless
> warnings:
> 
> 	do_IRQ: 0.39 No irq handler for vector
> 
> It took a while to figure out why that happens and why it is harmless for
> most interrupts, but there is also a real issue hidden for level type
> IOAPIC interrupts.
> 
> The following commits in Linus tree are addressing the issue:
> 
>  b7107a67f0d1 ("x86/irq: Handle spurious interrupt after shutdown gracefully")
>  dfe0cf8b51b0 ("x86/ioapic: Implement irq_get_irqchip_state() callback")
>  62e0468650c3 ("genirq: Add optional hardware synchronization for shutdown")
>  1d21f2af8571 ("genirq: Fix misleading synchronize_irq() documentation")
>  4001d8e8762f ("genirq: Delay deactivation in free_irq()")
> 
> There is another one which makes sense to be backported:
> 
>  f8a8fe61fec8 ("x86/irq: Seperate unused system vectors from spurious entry again")
> 
> These should go back to 4.19, but not farther.
> 
> They apply cleanly to 5.1 and 5.2. A backport to 4.19 is attached.

All now queued up, thanks for the backports!

greg k-h