kbuild: enable 'make AFLAGS=...' to add additional options to AS

The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 646292aaf1fc..d6ed8e5e1ccc 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -61,7 +61,7 @@ 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)
-AFLAGS          := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+KBUILD_AFLAGS   := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 
 $(obj)/zImage:  IMAGE_OFFSET := 0x1000
 $(obj)/zImage:  EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK)
diff --git a/arch/x86/boot/compressed/Makefile_64 b/arch/x86/boot/compressed/Makefile_64
index 3013ad01fe69..7801e8dd90b2 100644
--- a/arch/x86/boot/compressed/Makefile_64
+++ b/arch/x86/boot/compressed/Makefile_64
@@ -10,7 +10,7 @@ KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2  \
           -fno-strict-aliasing -fPIC -mcmodel=small \
            $(call cc-option, -ffreestanding) \
            $(call cc-option, -fno-stack-protector)
-AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 LDFLAGS := -m elf_x86_64
 
 LDFLAGS_vmlinux := -T