diff --git a/sys/compat/linuxkpi/common/include/linux/interrupt.h b/sys/compat/linuxkpi/common/include/linux/interrupt.h
--- a/sys/compat/linuxkpi/common/include/linux/interrupt.h
+++ b/sys/compat/linuxkpi/common/include/linux/interrupt.h
@@ -31,12 +31,15 @@
 #ifndef	_LINUX_INTERRUPT_H_
 #define	_LINUX_INTERRUPT_H_
 
+#include <linux/cpu.h>
 #include <linux/device.h>
 #include <linux/pci.h>
 #include <linux/irqreturn.h>
+#include <linux/hardirq.h>
 
 #include <sys/bus.h>
 #include <sys/rman.h>
+#include <sys/interrupt.h>
 
 typedef	irqreturn_t	(*irq_handler_t)(int, void *);
 
@@ -183,6 +186,19 @@
 	kfree(irqe);
 }
 
+static inline int
+irq_set_affinity_hint(int vector, cpumask_t *mask)
+{
+	int error;
+
+	if (mask != NULL)
+		error = intr_setaffinity(vector, CPU_WHICH_IRQ, mask);
+	else
+		error = intr_setaffinity(vector, CPU_WHICH_IRQ, cpuset_root);
+
+	return (-error);
+}
+
 /*
  * LinuxKPI tasklet support
  */