--- zzzz-none-000/linux-4.1.52/kernel/irq/resend.c	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/kernel/irq/resend.c	2022-03-02 11:37:13.000000000 +0000
@@ -17,6 +17,9 @@
 #include <linux/module.h>
 #include <linux/random.h>
 #include <linux/interrupt.h>
+#if defined(CONFIG_BCM_KF_BUZZZ) && defined(CONFIG_BUZZZ_KEVT)
+#include <linux/buzzz.h>
+#endif
 
 #include "internals.h"
 
@@ -35,6 +38,9 @@
 
 	while (!bitmap_empty(irqs_resend, nr_irqs)) {
 		irq = find_first_bit(irqs_resend, nr_irqs);
+#if defined(CONFIG_BCM_KF_BUZZZ) && defined(CONFIG_BUZZZ_KEVT)
+		BUZZZ_KNL3(IRQ_RESEND, irq, 0);
+#endif
 		clear_bit(irq, irqs_resend);
 		desc = irq_to_desc(irq);
 		local_irq_disable();
@@ -55,6 +61,10 @@
  */
 void check_irq_resend(struct irq_desc *desc, unsigned int irq)
 {
+#if defined(CONFIG_BCM_KF_BUZZZ) && defined(CONFIG_BUZZZ_KEVT)
+	BUZZZ_KNL3(IRQ_CHECK, irq, 0);
+#endif
+
 	/*
 	 * We do not resend level type interrupts. Level type
 	 * interrupts are resent by hardware when they are still