kbuild: fix up CFLAGS usage
Only in very rare cases is it needed to change CFLAGS
outside of arch/*/Makefile.
Fix up all wrong cases - in most cases
the use of EXTRA_CFLAGS is the only thing needed.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile
index affd4c8..1f3f225 100644
--- a/arch/parisc/math-emu/Makefile
+++ b/arch/parisc/math-emu/Makefile
@@ -3,7 +3,7 @@
#
# See arch/parisc/math-emu/README
-CFLAGS += -Wno-parentheses -Wno-implicit-function-declaration \
+EXTRA_CFLAGS += -Wno-parentheses -Wno-implicit-function-declaration \
-Wno-uninitialized -Wno-strict-prototypes -Wno-return-type \
-Wno-implicit-int
diff --git a/arch/ppc/boot/Makefile b/arch/ppc/boot/Makefile
index b739e25..487dc66 100644
--- a/arch/ppc/boot/Makefile
+++ b/arch/ppc/boot/Makefile
@@ -13,7 +13,6 @@
# modified by Cort (cort@cs.nmt.edu)
#
-CFLAGS += -fno-builtin -D__BOOTER__ -Iarch/$(ARCH)/boot/include
HOSTCFLAGS += -Iarch/$(ARCH)/boot/include
BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd
diff --git a/arch/x86/math-emu/Makefile b/arch/x86/math-emu/Makefile
index 9c943fa..9b0c63b 100644
--- a/arch/x86/math-emu/Makefile
+++ b/arch/x86/math-emu/Makefile
@@ -5,8 +5,7 @@
#DEBUG = -DDEBUGGING
DEBUG =
PARANOID = -DPARANOID
-CFLAGS := $(CFLAGS) $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
-
+EXTRA_CFLAGS := $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
EXTRA_AFLAGS := $(PARANOID)
# From 'C' language sources:
diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
index 820b31d..9c5185f 100644
--- a/arch/xtensa/boot/Makefile
+++ b/arch/xtensa/boot/Makefile
@@ -8,13 +8,12 @@
#
-CFLAGS += -fno-builtin -Iarch/$(ARCH)/boot/include
+EXTRA_CFLAGS += -fno-builtin -Iarch/$(ARCH)/boot/include
HOSTFLAGS += -Iarch/$(ARCH)/boot/include
BIG_ENDIAN := $(shell echo -e __XTENSA_EB__ | $(CC) -E - | grep -v "\#")
-export CFLAGS
-export AFLAGS
+export EXTRA_CFLAGS
export BIG_ENDIAN
subdir-y := lib