x86: biarch support for 32 bit builds beautified

There were no reason to mess around with CC, AS and LD.
Fixing this up avoided duplicated option for ld.

A small fixlet were needed in boot/Makefile which assumed
that CC were modified.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 7a3116ccf387..dcad6507f196 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -49,10 +49,7 @@ HOSTCFLAGS_build.o := $(LINUXINCLUDE)
 
 # How to compile the 16-bit code.  Note we always compile for -march=i386,
 # that way we can complain to the user if the CPU is insufficient.
-cflags-$(CONFIG_X86_32) :=
-cflags-$(CONFIG_X86_64) := -m32
 KBUILD_CFLAGS   := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
-                   $(cflags-y) \
                    -Wall -Wstrict-prototypes \
                    -march=i386 -mregparm=3 \
                    -include $(srctree)/$(src)/code16gcc.h \
@@ -62,6 +59,7 @@ KBUILD_CFLAGS	:= $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
                         $(call cc-option, -fno-unit-at-a-time)) \
                    $(call cc-option, -fno-stack-protector) \
                    $(call cc-option, -mpreferred-stack-boundary=2)
+KBUILD_CFLAGS +=   $(call cc-option,-m32)
 KBUILD_AFLAGS   := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 
 $(obj)/zImage:  IMAGE_OFFSET := 0x1000