--- zzzz-none-000/linux-4.19.183/fs/notify/Makefile	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/fs/notify/Makefile	2023-06-28 08:54:20.000000000 +0000
@@ -2,6 +2,8 @@
 obj-$(CONFIG_FSNOTIFY)		+= fsnotify.o notification.o group.o mark.o \
 				   fdinfo.o
 
+CFLAGS_fsnotify.o += -I$(src)
+
 obj-y			+= dnotify/
 obj-y			+= inotify/
 obj-y			+= fanotify/