--- zzzz-none-000/linux-5.4.213/scripts/Makefile.modpost	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/scripts/Makefile.modpost	2024-08-14 09:02:15.000000000 +0000
@@ -76,6 +76,13 @@
 
 # Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS
 include $(if $(wildcard $(src)/Kbuild), $(src)/Kbuild, $(src)/Makefile)
+
+# modpost option for external modules
+MODPOST += -e
+
+input-symdump := Module.symvers $(KBUILD_EXTRA_SYMBOLS)
+output-symdump := $(KBUILD_EXTMOD)/Module.symvers
+
 endif
 
 MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - $(wildcard vmlinux)