From 13639e76dd2431d3688c4dda352b4f1fe24cb7ff Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 3 Mar 2018 00:23:55 +0100
Subject: [PATCH] lantiq: ltq-vdsl-mei: Do not leak user space CFLAGS into
 kernel space

Do not leak the user space CFLAGS into the kernel space any more, this
allows us to activate the MIPS16 build.

This decreases the size of the ipk file from 87589 bytes to 81267 bytes.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 package/kernel/lantiq/ltq-vdsl-mei/Makefile   |  5 ++---
 .../patches/020-not-leak-cflags.patch         | 21 +++++++++++++++++++
 2 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 package/kernel/lantiq/ltq-vdsl-mei/patches/020-not-leak-cflags.patch

diff --git a/package/kernel/lantiq/ltq-vdsl-mei/Makefile b/package/kernel/lantiq/ltq-vdsl-mei/Makefile
index 96bbc98c706..aeb028181e7 100644
--- a/package/kernel/lantiq/ltq-vdsl-mei/Makefile
+++ b/package/kernel/lantiq/ltq-vdsl-mei/Makefile
@@ -9,7 +9,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=ltq-vdsl-vr9-mei
 PKG_VERSION:=1.5.17.6
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_BASE_NAME:=drv_mei_cpe
 PKG_SOURCE:=$(PKG_BASE_NAME)-$(PKG_VERSION).tar.gz
@@ -19,7 +19,6 @@ PKG_HASH:=94f6904364348b7f74087e721968abc28b2564fb9bd8899aa930d36490387662
 PKG_FIXUP:=autoreconf
 PKG_FLAGS:=nonshared
 PKG_MAINTAINER:=John Crispin <john@phrozen.org>
-PKG_USE_MIPS16:=0
 PKG_LICENSE:=GPL-2.0 BSD-2-Clause
 PKG_LICENSE_FILES:=LICENSE
 
@@ -65,7 +64,7 @@ CONFIGURE_ARGS += \
 	--enable-error_print \
 	--enable-ifxos-include="-I$(STAGING_DIR)/usr/include/ifxos/" \
 	--enable-ifxos-library="-L$(STAGING_DIR)/usr/lib" \
-	--enable-add_drv_cflags="-DMEI_DRV_ATM_PTM_INTERFACE_ENABLE=1 -fno-pic -mlong-calls -O2 -g0" \
+	--enable-add_drv_cflags="-DMEI_DRV_ATM_PTM_INTERFACE_ENABLE=1" \
 	--enable-linux-26 \
 	--enable-kernelbuild="$(LINUX_DIR)" \
 	--enable-drv_test_appl=yes \
diff --git a/package/kernel/lantiq/ltq-vdsl-mei/patches/020-not-leak-cflags.patch b/package/kernel/lantiq/ltq-vdsl-mei/patches/020-not-leak-cflags.patch
new file mode 100644
index 00000000000..31dbba37b9d
--- /dev/null
+++ b/package/kernel/lantiq/ltq-vdsl-mei/patches/020-not-leak-cflags.patch
@@ -0,0 +1,21 @@
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -213,8 +213,7 @@ drv_mei_cpe_common_cflags = $(AM_CFLAGS)
+ else
+ 
+ drv_mei_cpe_common_cflags = \
+-	$(AM_CFLAGS) -D__KERNEL__ -DLINUX -D__linux__ -DMODULE -DEXPORT_SYMTAB \
+-	-pipe -Wimplicit -Wunused -Wuninitialized -Wsign-compare -Wstrict-aliasing
++	-D__KERNEL__ -DLINUX -D__linux__ -DMODULE -DEXPORT_SYMTAB
+ 
+ endif
+ 
+@@ -354,7 +353,7 @@ drv_mei_cpe.ko: $(drv_mei_cpe_SOURCES)
+ 	@echo -e "# drv_mei_cpe: Generated to build Linux 2.6.x kernel object" > $(PWD)/Kbuild
+ 	@echo -e "obj-m := $(subst .ko,.o,$@)"			>> $(PWD)/Kbuild
+ 	@echo -e "$(subst .ko,,$@)-y := $(drv_mei_cpe_OBJS)"	>> $(PWD)/Kbuild
+-	@echo -e "EXTRA_CFLAGS := $(CFLAGS) $(drv_mei_cpe_CFLAGS) -I@abs_srcdir@ -I@abs_srcdir@/auto_header $(IFXOS_INCLUDE_PATH)" >> $(PWD)/Kbuild
++	@echo -e "EXTRA_CFLAGS := $(drv_mei_cpe_CFLAGS) -I@abs_srcdir@ -I@abs_srcdir@/auto_header $(IFXOS_INCLUDE_PATH)" >> $(PWD)/Kbuild
+ 	$(MAKE) ARCH=@KERNEL_ARCH@ -C @KERNEL_BUILD_PATH@ O=@KERNEL_BUILD_PATH@ M=$(PWD) modules
+ 
+ clean-generic:
-- 
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