[openwrt/openwrt] build: fix issues with targets installed via feeds

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/25d8b9cad6f141104a1065880efe21b8c292d8c6

commit 25d8b9cad6f141104a1065880efe21b8c292d8c6
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Sep 27 13:39:12 2022 +0200

    build: fix issues with targets installed via feeds
    
    - fix including modules.mk when a target is being replaced
    - fix calling make targets from target/linux
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
    (cherry-picked from commit 3a8825ad6acbf18b2b472ace56be58868af78be7)
---
 include/target.mk             | 2 +-
 package/kernel/linux/Makefile | 7 ++++---
 target/linux/Makefile         | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/target.mk b/include/target.mk
index a2c8b7bdbf..708ba395c6 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -68,7 +68,7 @@ endif
 
 target_conf=$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
 ifeq ($(DUMP),)
-  PLATFORM_DIR:=$(TOPDIR)/target/linux/$(BOARD)
+  PLATFORM_DIR:=$(firstword $(wildcard $(TOPDIR)/target/linux/feeds/$(BOARD) $(TOPDIR)/target/linux/$(BOARD)))
   SUBTARGET:=$(strip $(foreach subdir,$(patsubst $(PLATFORM_DIR)/%/target.mk,%,$(wildcard $(PLATFORM_DIR)/*/target.mk)),$(if $(CONFIG_TARGET_$(call target_conf,$(BOARD)_$(subdir))),$(subdir))))
 else
   PLATFORM_DIR:=${CURDIR}
diff --git a/package/kernel/linux/Makefile b/package/kernel/linux/Makefile
index ad68bde9b3..ff91760270 100644
--- a/package/kernel/linux/Makefile
+++ b/package/kernel/linux/Makefile
@@ -12,7 +12,9 @@ PKG_NAME:=kernel
 PKG_FLAGS:=hold
 
 PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/packages
-SCAN_DEPS=modules/*.mk $(TOPDIR)/target/linux/*/modules.mk $(TOPDIR)/target/linux/*/*/modules.mk $(TOPDIR)/include/netfilter.mk
+SUBTARGETS = $(sort $(filter-out feeds,$(notdir $(wildcard $(TOPDIR)/target/linux/* $(TOPDIR)/target/linux/feeds/*))))
+SUBTARGET_MODULES = $(foreach t,$(SUBTARGETS),$(firstword $(wildcard $(TOPDIR)/target/linux/feeds/$(t)/modules.mk $(TOPDIR)/target/linux/$(t)/modules.mk)))
+SCAN_DEPS=modules/*.mk $(SUBTARGET_MODULES) $(TOPDIR)/include/netfilter.mk
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=
@@ -63,5 +65,4 @@ endef
 $(eval $(if $(DUMP),,$(call BuildPackage,kernel)))
 
 include $(sort $(wildcard ./modules/*.mk))
--include $(TOPDIR)/target/linux/*/modules.mk
--include $(TOPDIR)/target/linux/*/*/modules.mk
+-include $(SUBTARGET_MODULES)
diff --git a/target/linux/Makefile b/target/linux/Makefile
index a939d42bc0..8eea40ee18 100644
--- a/target/linux/Makefile
+++ b/target/linux/Makefile
@@ -8,4 +8,4 @@ include $(INCLUDE_DIR)/target.mk
 export TARGET_BUILD=1
 
 prereq clean download prepare compile install oldconfig menuconfig nconfig xconfig update refresh: FORCE
-	@+$(NO_TRACE_MAKE) -C $(BOARD) $@
+	@+$(NO_TRACE_MAKE) -C $(firstword $(wildcard feeds/$(BOARD) $(BOARD))) $@