[RFC PATCH v6 3/3] arm: fix a migrating irq bug when hotplug cpu

Russell King - ARM Linux linux at arm.linux.org.uk
Tue Oct 13 12:28:24 PDT 2015

On Thu, Sep 24, 2015 at 05:32:15PM +0800, Yang Yingliang wrote:
> When cpu is disabled, all irqs will be migratged to another cpu.
> In some cases, a new affinity is different, the old affinity need
> to be updated and if irq_set_affinity's return value is IRQ_SET_MASK_OK_DONE,
> the old affinity can not be updated. Fix it by using irq_do_set_affinity.
> And migrating interrupts is a core code matter, so use the generic
> function irq_migrate_all_off_this_cpu() to migrate interrupts in
> kernel/irq/migration.c.

Please can you put this patch in the patch system so I don't forget it
(it's taken tglx prompting and quite a long time to find this in my
mailbox already.)

See http:/www.arm.linux.org.uk/developer/patches/


FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.

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