[openwrt/openwrt] kernel: lantiq: fix Module.symvers handling

[LEDE Commits]

mkresin pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/d2d32dcd5f4bb2d028452419fb2e014b7b31a37a

commit d2d32dcd5f4bb2d028452419fb2e014b7b31a37a
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Sun Dec 27 21:59:28 2020 +0100

    kernel: lantiq: fix Module.symvers handling
    
    If an external module uses exported symbols from another external
    module, Kbuild needs to have full knowledge of all symbols to
    avoid spitting out warnings about undefined symbols.
    
    Use PKG_EXTMOD_SUBDIRS to point to the build directory which contains
    the Module.symvers.
    
    Pass KERNEL_MAKE_FLAGS to the external module build, to inject
    KBUILD_EXTRA_SYMBOLS. KBUILD_EXTRA_SYMBOLS holds a space separated list
    of Module.symvers, which list all exported symbols.
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 package/kernel/lantiq/ltq-adsl/Makefile     | 3 +++
 package/kernel/lantiq/ltq-atm/Makefile      | 2 +-
 package/kernel/lantiq/ltq-ifxos/Makefile    | 1 +
 package/kernel/lantiq/ltq-ptm/Makefile      | 2 +-
 package/kernel/lantiq/ltq-tapi/Makefile     | 4 ++++
 package/kernel/lantiq/ltq-vdsl-mei/Makefile | 2 ++
 package/kernel/lantiq/ltq-vdsl/Makefile     | 1 +
 package/kernel/lantiq/ltq-vmmc/Makefile     | 3 +++
 8 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/package/kernel/lantiq/ltq-adsl/Makefile b/package/kernel/lantiq/ltq-adsl/Makefile
index b2e1ccb640..31874acaca 100644
--- a/package/kernel/lantiq/ltq-adsl/Makefile
+++ b/package/kernel/lantiq/ltq-adsl/Makefile
@@ -46,6 +46,9 @@ IFX_DSL_MAX_DEVICE=1
 IFX_DSL_LINES_PER_DEVICE=1
 IFX_DSL_CHANNELS_PER_LINE=1
 
+MAKE_FLAGS += \
+	$(KERNEL_MAKE_FLAGS)
+
 CONFIGURE_ARGS += --enable-kernel-include="$(LINUX_DIR)/include" \
 	--with-max-device="$(IFX_DSL_MAX_DEVICE)" \
 	--with-lines-per-device="$(IFX_DSL_LINES_PER_DEVICE)" \
diff --git a/package/kernel/lantiq/ltq-atm/Makefile b/package/kernel/lantiq/ltq-atm/Makefile
index 89a3328cf8..f675269ca3 100644
--- a/package/kernel/lantiq/ltq-atm/Makefile
+++ b/package/kernel/lantiq/ltq-atm/Makefile
@@ -36,7 +36,7 @@ endef
 define Build/Compile
 	cd $(LINUX_DIR); \
 		ARCH=mips CROSS_COMPILE="$(KERNEL_CROSS)" \
-		$(MAKE) BUILD_VARIANT=$(BUILD_VARIANT) M=$(PKG_BUILD_DIR) V=1 modules
+		$(MAKE) $(KERNEL_MAKE_FLAGS) BUILD_VARIANT=$(BUILD_VARIANT) M=$(PKG_BUILD_DIR) V=1 modules
 endef
 
 $(eval $(call KernelPackage,ltq-atm-danube))
diff --git a/package/kernel/lantiq/ltq-ifxos/Makefile b/package/kernel/lantiq/ltq-ifxos/Makefile
index 4a368309d3..e98cb21eff 100644
--- a/package/kernel/lantiq/ltq-ifxos/Makefile
+++ b/package/kernel/lantiq/ltq-ifxos/Makefile
@@ -16,6 +16,7 @@ PKG_HASH:=ed7fe39311d7a4a13d23ed0ae2445c0d825b472b5a98da9b72bcaabcf5ed2d5f
 PKG_MAINTAINER:=John Crispin <john at phrozen.org>
 PKG_LICENSE:=GPL-2.0 BSD-2-Clause
 PKG_LICENSE_FILES:=LICENSE
+PKG_EXTMOD_SUBDIRS:=src
 
 PKG_FIXUP:=autoreconf
 
diff --git a/package/kernel/lantiq/ltq-ptm/Makefile b/package/kernel/lantiq/ltq-ptm/Makefile
index d7c2a7aa61..33a23d6853 100644
--- a/package/kernel/lantiq/ltq-ptm/Makefile
+++ b/package/kernel/lantiq/ltq-ptm/Makefile
@@ -45,7 +45,7 @@ endef
 define Build/Compile
 	cd $(LINUX_DIR); \
 		ARCH=mips CROSS_COMPILE="$(KERNEL_CROSS)" \
-		$(MAKE) BUILD_VARIANT=$(BUILD_VARIANT) M=$(PKG_BUILD_DIR) V=1 modules
+		$(MAKE) $(KERNEL_MAKE_FLAGS) BUILD_VARIANT=$(BUILD_VARIANT) M=$(PKG_BUILD_DIR) V=1 modules
 endef
 
 $(eval $(call KernelPackage,ltq-ptm-danube))
diff --git a/package/kernel/lantiq/ltq-tapi/Makefile b/package/kernel/lantiq/ltq-tapi/Makefile
index a04f7d38e5..77728644f6 100644
--- a/package/kernel/lantiq/ltq-tapi/Makefile
+++ b/package/kernel/lantiq/ltq-tapi/Makefile
@@ -19,6 +19,7 @@ PKG_MAINTAINER:=John Crispin <john at phrozen.org>
 
 PKG_CHECK_FORMAT_SECURITY:=0
 PKG_FIXUP:=autoreconf
+PKG_EXTMOD_SUBDIRS:=src
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -39,6 +40,9 @@ define KernelPackage/ltq-tapi/config
 	source "$(SOURCE)/Config.in"
 endef
 
+MAKE_FLAGS += \
+	$(KERNEL_MAKE_FLAGS)
+
 CONFIGURE_ARGS += \
 	ARCH=$(LINUX_KARCH) \
 	--enable-linux-26 \
diff --git a/package/kernel/lantiq/ltq-vdsl-mei/Makefile b/package/kernel/lantiq/ltq-vdsl-mei/Makefile
index 4a305d9c27..8e52d20a72 100644
--- a/package/kernel/lantiq/ltq-vdsl-mei/Makefile
+++ b/package/kernel/lantiq/ltq-vdsl-mei/Makefile
@@ -21,6 +21,7 @@ PKG_FLAGS:=nonshared
 PKG_MAINTAINER:=John Crispin <john at phrozen.org>
 PKG_LICENSE:=GPL-2.0 BSD-2-Clause
 PKG_LICENSE_FILES:=LICENSE
+PKG_EXTMOD_SUBDIRS:=src
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -52,6 +53,7 @@ define Package/ltq-vdsl-mei-test/description
 endef
 
 MAKE_FLAGS += \
+	$(KERNEL_MAKE_FLAGS) \
 	SHELL="$(BASH)"
 
 CONFIGURE_ARGS += \
diff --git a/package/kernel/lantiq/ltq-vdsl/Makefile b/package/kernel/lantiq/ltq-vdsl/Makefile
index c09c88057f..047543496e 100644
--- a/package/kernel/lantiq/ltq-vdsl/Makefile
+++ b/package/kernel/lantiq/ltq-vdsl/Makefile
@@ -42,6 +42,7 @@ define Package/ltq-vdsl-vr9/description
 endef
 
 MAKE_FLAGS += \
+	$(KERNEL_MAKE_FLAGS) \
 	SHELL="$(BASH)"
 
 CONFIGURE_ARGS += --enable-kernel-include="$(LINUX_DIR)/include" \
diff --git a/package/kernel/lantiq/ltq-vmmc/Makefile b/package/kernel/lantiq/ltq-vmmc/Makefile
index c733345cfa..c96cee819b 100644
--- a/package/kernel/lantiq/ltq-vmmc/Makefile
+++ b/package/kernel/lantiq/ltq-vmmc/Makefile
@@ -39,6 +39,9 @@ define KernelPackage/ltq-vmmc/config
 	source "$(SOURCE)/Config.in"
 endef
 
+MAKE_FLAGS += \
+	$(KERNEL_MAKE_FLAGS)
+
 CONFIGURE_ARGS += \
 	ARCH=$(LINUX_KARCH) \
 	--enable-linux-26 \