The new code of commit 
cd7eab44e(genirq: Add IRQ affinity notifiers)
references irq_desc.affinity which fails to compile with
CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED=y.
Use irq_desc.irq_data.affinity instead.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ben Hutchings <bhutchings@solarflare.com>
 
                cpumask_copy(cpumask, desc->pending_mask);
        else
 #endif
-               cpumask_copy(cpumask, desc->affinity);
+               cpumask_copy(cpumask, desc->irq_data.affinity);
        raw_spin_unlock_irqrestore(&desc->lock, flags);
 
        notify->notify(notify, cpumask);