--- zzzz-none-000/linux-4.19.183/kernel/irq/Makefile	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/kernel/irq/Makefile	2023-06-28 08:54:21.000000000 +0000
@@ -1,5 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 
+ifdef BCM_KF # defined(CONFIG_BCM_KF_CPU_AFFINITY_HINT)
+CFLAGS_cpuhotplug.o := -I${INC_BRCMSHARED_PUB_PATH}/bcm963xx\
+		-I${INC_BRCMDRIVER_PUB_PATH}/bcm963xx
+endif
+
 obj-y := irqdesc.o handle.o manage.o spurious.o resend.o chip.o dummychip.o devres.o
 obj-$(CONFIG_IRQ_TIMINGS) += timings.o
 obj-$(CONFIG_GENERIC_IRQ_CHIP) += generic-chip.o