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>

4 files changed, 4 insertions, 7 deletions

diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile
index affd4c80e3b7..1f3f225897f5 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 b739e25d4728..487dc66dcc74 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 9c943fa6ce6b..9b0c63b60302 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 820b31d10ae4..9c5185f605b6 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