build: add image command for calling kernel2minor

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/include/image-commands.mk b/include/image-commands.mk
index 083a3890316c633e9a1ffaab6bd7790ebb29ea34..a7acd0ee6739e11cd04c9353f1352c91fe1d54f1 100644 (file)
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -190,3 +190,8 @@ metadata_json = \
 define Build/append-metadata
        $(if $(SUPPORTED_DEVICES),echo $(call metadata_json,$(SUPPORTED_DEVICES)) | fwtool -I - $@)
 endef
+
+define Build/kernel2minor
+       kernel2minor -k $@ -r $@.new $(1)
+       mv $@.new $@
+endef