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Benjamin Herrenschmidt authored
Ensure irqd is active before attempting to set affinity. This should make the set affinity code more robust. For instance, this prevents these messages seen on a 4.12 based kernel when taking cpus offline: [ 123.053037264,3] XIVE[ IC 00 ] ISN 2 lead to invalid IVE ! [ 77.885859] xive: Error -6 reconfiguring irq 17 [ 77.885862] IRQ17: set affinity failed(-6). That particular case has been fixed in 4.13-rc1 by commit 91f26cb4 ("genirq/cpuhotplug: Do not migrated shutdown irqs"). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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