tree a108d594737793b991931ee1f53fa099b8801194
parent 4ea6097986c4b4ca5a5d5b19c75386fda3360e54
author Juergen Gross <jgross@suse.com> 1618208925 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1618566399 +0200

xen/events: fix setting irq affinity

The backport of upstream patch 25da4618af240fbec61 ("xen/events: don't
unmask an event channel when an eoi is pending") introduced a
regression for stable kernels 5.10 and older: setting IRQ affinity for
IRQs related to interdomain events would no longer work, as moving the
IRQ to its new cpu was not included in the irq_ack callback for those
events.

Fix that by adding the needed call.

Note that kernels 5.11 and later don't need the explicit moving of the
IRQ to the target cpu in the irq_ack callback, due to a rework of the
affinity setting in kernel 5.11.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>