On Sun, Jul 22, 2012 at 04:22:04PM +0200, Ingo Molnar wrote:
> 
> * Kirill A. Shutemov <[email protected]> wrote:
> 
> > On Sun, Jul 22, 2012 at 03:44:51PM +0200, Ingo Molnar wrote:
> > > Linus,
> > > 
> > > Please pull the latest x86-build-for-linus git tree from:
> > > 
> > >    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
> > > x86-build-for-linus
> > > 
> > >    HEAD: d9b0cde91c60da0ed5f92cdc3ac878142e6b5f27 x86-64, gcc: Use 
> > > -mpreferred-stack-boundary=3 if supported
> > > 
> > >  Thanks,
> > > 
> > >   Ingo
> > > 
> > > ------------------>
> > > H.J. Lu (1):
> > >       x86-64, gcc: Use -mpreferred-stack-boundary=3 if supported
> > > 
> > > 
> > >  arch/x86/Makefile |    3 +++
> > >  1 file changed, 3 insertions(+)
> > > 
> > > diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> > > index 1f25214..b0c5276 100644
> > > --- a/arch/x86/Makefile
> > > +++ b/arch/x86/Makefile
> > > @@ -49,6 +49,9 @@ else
> > >          KBUILD_AFLAGS += -m64
> > >          KBUILD_CFLAGS += -m64
> > >  
> > > + # Use -mpreferred-stack-boundary=3 if supported.
> > > + KBUILD_CFLAGS += $(call cc-option,-mno-sse -mpreferred-stack-boundary=3)
> > > +
> > 
> > Broken indent?
> 
> No, the reason for the odd looking diff is that lots of lines in 
> arch/x86/Makefile have 8-space tabs for histerical reasons but 
> new code (such as this one) has proper tabs.
> 
> Wanna send a (tested) cleanup patch to make it all look tidy?

>From 1b5d73179f8fe26480c57a8f069300fe56304756 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <[email protected]>
Date: Mon, 23 Jul 2012 12:30:24 +0300
Subject: [PATCH] x86: whitespace cleanup in makefiles

Buildtested: defconfig, allnoconfig, allmodconfig, allyesconfig for both
32- and 64-bit.

Signed-off-by: Kirill A. Shutemov <[email protected]>
---
 arch/x86/Makefile                   | 124 ++++++++++++++++++------------------
 arch/x86/Makefile.um                |   2 +-
 arch/x86/Makefile_32.cpu            |   2 +-
 arch/x86/boot/Makefile              |  20 +++---
 arch/x86/crypto/Makefile            |  74 ++++++++++-----------
 arch/x86/ia32/Makefile              |  10 +--
 arch/x86/kernel/Makefile            |  14 ++--
 arch/x86/kernel/cpu/mcheck/Makefile |   2 +-
 arch/x86/lib/Makefile               |  26 ++++----
 arch/x86/math-emu/Makefile          |   2 +-
 arch/x86/oprofile/Makefile          |   2 +-
 arch/x86/pci/Makefile               |   4 +-
 arch/x86/platform/efi/Makefile      |   2 +-
 arch/x86/platform/olpc/Makefile     |   2 +-
 arch/x86/realmode/Makefile          |   6 +-
 arch/x86/realmode/rm/Makefile       |   2 +-
 arch/x86/tools/Makefile             |   8 +--
 arch/x86/um/os-Linux/Makefile       |   4 +-
 arch/x86/um/vdso/Makefile           |  16 ++---
 arch/x86/vdso/Makefile              |  12 ++--
 arch/x86/video/Makefile             |   2 +-
 arch/x86/xen/Makefile               |   2 +-
 22 files changed, 169 insertions(+), 169 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index b0c5276..c6897b2 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -2,9 +2,9 @@
 
 # select defconfig based on actual architecture
 ifeq ($(ARCH),x86)
-        KBUILD_DEFCONFIG := i386_defconfig
+       KBUILD_DEFCONFIG := i386_defconfig
 else
-        KBUILD_DEFCONFIG := $(ARCH)_defconfig
+       KBUILD_DEFCONFIG := $(ARCH)_defconfig
 endif
 
 # BITS is used as extension for files which are available in a 32 bit
@@ -13,76 +13,76 @@ endif
 export BITS
 
 ifeq ($(CONFIG_X86_32),y)
-        BITS := 32
-        UTS_MACHINE := i386
-        CHECKFLAGS += -D__i386__
+       BITS := 32
+       UTS_MACHINE := i386
+       CHECKFLAGS += -D__i386__
 
-        biarch := $(call cc-option,-m32)
-        KBUILD_AFLAGS += $(biarch)
-        KBUILD_CFLAGS += $(biarch)
+       biarch := $(call cc-option,-m32)
+       KBUILD_AFLAGS += $(biarch)
+       KBUILD_CFLAGS += $(biarch)
 
-        ifdef CONFIG_RELOCATABLE
-                LDFLAGS_vmlinux := --emit-relocs
-        endif
+       ifdef CONFIG_RELOCATABLE
+               LDFLAGS_vmlinux := --emit-relocs
+       endif
 
-        KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
+       KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
 
-        # prevent gcc from keeping the stack 16 byte aligned
-        KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
+       # prevent gcc from keeping the stack 16 byte aligned
+       KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 
-        # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc 
use
-        # a lot more stack due to the lack of sharing of stacklots:
-        KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
+       # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+       # a lot more stack due to the lack of sharing of stacklots:
+       KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
                                $(call cc-option,-fno-unit-at-a-time))
 
-        # CPU-specific tuning. Anything which can be shared with UML should go 
here.
-        include $(srctree)/arch/x86/Makefile_32.cpu
-        KBUILD_CFLAGS += $(cflags-y)
+       # CPU-specific tuning. Anything which can be shared with UML should go 
here.
+       include $(srctree)/arch/x86/Makefile_32.cpu
+       KBUILD_CFLAGS += $(cflags-y)
 
-        # temporary until string.h is fixed
-        KBUILD_CFLAGS += -ffreestanding
+       # temporary until string.h is fixed
+       KBUILD_CFLAGS += -ffreestanding
 else
-        BITS := 64
-        UTS_MACHINE := x86_64
-        CHECKFLAGS += -D__x86_64__ -m64
+       BITS := 64
+       UTS_MACHINE := x86_64
+       CHECKFLAGS += -D__x86_64__ -m64
 
-        KBUILD_AFLAGS += -m64
-        KBUILD_CFLAGS += -m64
+       KBUILD_AFLAGS += -m64
+       KBUILD_CFLAGS += -m64
 
        # Use -mpreferred-stack-boundary=3 if supported.
        KBUILD_CFLAGS += $(call cc-option,-mno-sse -mpreferred-stack-boundary=3)
 
-        # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
-        cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
-        cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+       # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
+       cflags-$(CONFIG_MK8)    += $(call cc-option,-march=k8)
+       cflags-$(CONFIG_MPSC)   += $(call cc-option,-march=nocona)
 
-        cflags-$(CONFIG_MCORE2) += \
-                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
-       cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
+       cflags-$(CONFIG_MCORE2) += \
+               $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+       cflags-$(CONFIG_MATOM)  += $(call cc-option,-march=atom) \
                $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
-        cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
-        KBUILD_CFLAGS += $(cflags-y)
+       cflags-$(CONFIG_GENERIC_CPU)    += $(call cc-option,-mtune=generic)
+       KBUILD_CFLAGS += $(cflags-y)
 
-        KBUILD_CFLAGS += -mno-red-zone
-        KBUILD_CFLAGS += -mcmodel=kernel
+       KBUILD_CFLAGS += -mno-red-zone
+       KBUILD_CFLAGS += -mcmodel=kernel
 
-        # -funit-at-a-time shrinks the kernel .text considerably
-        # unfortunately it makes reading oopses harder.
-        KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
+       # -funit-at-a-time shrinks the kernel .text considerably
+       # unfortunately it makes reading oopses harder.
+       KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
 
-        # this works around some issues with generating unwind tables in older 
gccs
-        # newer gccs do it by default
-        KBUILD_CFLAGS += -maccumulate-outgoing-args
+       # this works around some issues with generating unwind tables in older 
gccs
+       # newer gccs do it by default
+       KBUILD_CFLAGS += -maccumulate-outgoing-args
 endif
 
 ifdef CONFIG_CC_STACKPROTECTOR
        cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
-        ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) 
$(biarch)),y)
-                stackp-y := -fstack-protector
-                KBUILD_CFLAGS += $(stackp-y)
-        else
-                $(warning stack protector enabled but no compiler support)
-        endif
+       ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) 
$(biarch)),y)
+               stackp-y := -fstack-protector
+               KBUILD_CFLAGS += $(stackp-y)
+       else
+               $(warning stack protector enabled but no compiler support)
+       endif
 endif
 
 ifdef CONFIG_X86_X32
@@ -91,13 +91,13 @@ ifdef CONFIG_X86_X32
                        $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" - && \
                        $(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
                        $(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
-        ifeq ($(x32_ld_ok),y)
-                CONFIG_X86_X32_ABI := y
-                KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
-                KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
-        else
-                $(warning CONFIG_X86_X32 enabled but no binutils support)
-        endif
+       ifeq ($(x32_ld_ok),y)
+               CONFIG_X86_X32_ABI := y
+               KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
+               KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
+       else
+               $(warning CONFIG_X86_X32 enabled but no binutils support)
+       endif
 endif
 export CONFIG_X86_X32_ABI
 
@@ -154,22 +154,22 @@ head-y := arch/x86/kernel/head_$(BITS).o
 head-y += arch/x86/kernel/head$(BITS).o
 head-y += arch/x86/kernel/head.o
 
-libs-y  += arch/x86/lib/
+libs-y += arch/x86/lib/
 
 # See arch/x86/Kbuild for content of core part of the kernel
 core-y += arch/x86/
 
 # drivers-y are linked after core-y
-drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
-drivers-$(CONFIG_PCI)            += arch/x86/pci/
+drivers-$(CONFIG_MATH_EMULATION)       += arch/x86/math-emu/
+drivers-$(CONFIG_PCI)                  += arch/x86/pci/
 
 # must be linked after kernel/
-drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
+drivers-$(CONFIG_OPROFILE)     += arch/x86/oprofile/
 
 # suspend and hibernation support
-drivers-$(CONFIG_PM) += arch/x86/power/
+drivers-$(CONFIG_PM)   += arch/x86/power/
 
-drivers-$(CONFIG_FB) += arch/x86/video/
+drivers-$(CONFIG_FB)   += arch/x86/video/
 
 ####
 # boot loader support. Several targets are kept for legacy purposes
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 36b62bc..586f4b0 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -5,7 +5,7 @@ START := 0x8048000
 
 LDFLAGS                        += -m elf_i386
 ELF_ARCH               := i386
-ELF_FORMAT             := elf32-i386
+ELF_FORMAT             := elf32-i386
 CHECKFLAGS     += -D__i386__
 
 KBUILD_CFLAGS          += $(call cc-option,-m32)
diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index 86cee7b..5afa477 100644
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -44,7 +44,7 @@ cflags-$(CONFIG_MGEODEGX1)    += -march=pentium-mmx
 cflags-$(CONFIG_MGEODE_LX)     += $(call 
cc-option,-march=geode,-march=pentium-mmx)
 # add at the end to overwrite eventual tuning options from earlier
 # cpu entries
-cflags-$(CONFIG_X86_GENERIC)   += $(call tune,generic,$(call tune,i686))
+cflags-$(CONFIG_X86_GENERIC)   += $(call tune,generic,$(call tune,i686))
 
 # Work around the pentium-mmx code generator madness of gcc4.4.x which
 # does stack alignment by generating horrible code _before_ the mcount
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 5a747dd..debb43a 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -38,7 +38,7 @@ targets               += $(setup-y)
 hostprogs-y    := mkcpustr tools/build
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include $(LINUXINCLUDE) \
-                   -D__EXPORTED_HEADERS__
+                       -D__EXPORTED_HEADERS__
 
 $(obj)/cpu.o: $(obj)/cpustr.h
 
@@ -53,16 +53,16 @@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
 # 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.
 KBUILD_CFLAGS  := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
-                  -DDISABLE_BRANCH_PROFILING \
-                  -Wall -Wstrict-prototypes \
-                  -march=i386 -mregparm=3 \
-                  -include $(srctree)/$(src)/code16gcc.h \
-                  -fno-strict-aliasing -fomit-frame-pointer \
-                  $(call cc-option, -ffreestanding) \
-                  $(call cc-option, -fno-toplevel-reorder,\
+                       -DDISABLE_BRANCH_PROFILING \
+                       -Wall -Wstrict-prototypes \
+                       -march=i386 -mregparm=3 \
+                       -include $(srctree)/$(src)/code16gcc.h \
+                       -fno-strict-aliasing -fomit-frame-pointer \
+                       $(call cc-option, -ffreestanding) \
+                       $(call cc-option, -fno-toplevel-reorder,\
                        $(call cc-option, -fno-unit-at-a-time)) \
-                  $(call cc-option, -fno-stack-protector) \
-                  $(call cc-option, -mpreferred-stack-boundary=2)
+                       $(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__
 GCOV_PROFILE := n
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index e191ac0..d2095f7 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -2,44 +2,44 @@
 # Arch-specific CryptoAPI modules.
 #
 
-obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
-obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
-obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
-obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586) += serpent-sse2-i586.o
-
-obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
-obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64) += camellia-x86_64.o
-obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o
-obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
-obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o
-obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
-obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o
-obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
-obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
-
-obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
-obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
-
-aes-i586-y := aes-i586-asm_32.o aes_glue.o
-twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
-salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
-serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o
-
-aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
-camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o
-blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
-twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
-twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
-salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
-serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o
-
-aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o
-
-ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
+obj-$(CONFIG_CRYPTO_AES_586)           += aes-i586.o
+obj-$(CONFIG_CRYPTO_TWOFISH_586)       += twofish-i586.o
+obj-$(CONFIG_CRYPTO_SALSA20_586)       += salsa20-i586.o
+obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586)  += serpent-sse2-i586.o
+
+obj-$(CONFIG_CRYPTO_AES_X86_64)                        += aes-x86_64.o
+obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64)           += camellia-x86_64.o
+obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64)           += blowfish-x86_64.o
+obj-$(CONFIG_CRYPTO_TWOFISH_X86_64)            += twofish-x86_64.o
+obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY)       += twofish-x86_64-3way.o
+obj-$(CONFIG_CRYPTO_SALSA20_X86_64)            += salsa20-x86_64.o
+obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64)       += serpent-sse2-x86_64.o
+obj-$(CONFIG_CRYPTO_AES_NI_INTEL)              += aesni-intel.o
+obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL)      += ghash-clmulni-intel.o
+
+obj-$(CONFIG_CRYPTO_CRC32C_INTEL)      += crc32c-intel.o
+obj-$(CONFIG_CRYPTO_SHA1_SSSE3)                += sha1-ssse3.o
+
+aes-i586-y             := aes-i586-asm_32.o aes_glue.o
+twofish-i586-y         := twofish-i586-asm_32.o twofish_glue.o
+salsa20-i586-y         := salsa20-i586-asm_32.o salsa20_glue.o
+serpent-sse2-i586-y    := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o
+
+aes-x86_64-y           := aes-x86_64-asm_64.o aes_glue.o
+camellia-x86_64-y      := camellia-x86_64-asm_64.o camellia_glue.o
+blowfish-x86_64-y      := blowfish-x86_64-asm_64.o blowfish_glue.o
+twofish-x86_64-y       := twofish-x86_64-asm_64.o twofish_glue.o
+twofish-x86_64-3way-y  := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
+salsa20-x86_64-y       := salsa20-x86_64-asm_64.o salsa20_glue.o
+serpent-sse2-x86_64-y  := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o
+
+aesni-intel-y          := aesni-intel_asm.o aesni-intel_glue.o fpu.o
+
+ghash-clmulni-intel-y  := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
 
 # enable AVX support only when $(AS) can actually assemble the instructions
 ifeq ($(call as-instr,vpxor %xmm0$(comma)%xmm1$(comma)%xmm2,yes,no),yes)
-AFLAGS_sha1_ssse3_asm.o += -DSHA1_ENABLE_AVX_SUPPORT
-CFLAGS_sha1_ssse3_glue.o += -DSHA1_ENABLE_AVX_SUPPORT
+AFLAGS_sha1_ssse3_asm.o                += -DSHA1_ENABLE_AVX_SUPPORT
+CFLAGS_sha1_ssse3_glue.o       += -DSHA1_ENABLE_AVX_SUPPORT
 endif
-sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
+sha1-ssse3-y           := sha1_ssse3_asm.o sha1_ssse3_glue.o
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 455646e..8357fd4 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -5,10 +5,10 @@
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
 obj-$(CONFIG_IA32_EMULATION) += nosyscall.o syscall_ia32.o
 
-sysv-$(CONFIG_SYSVIPC) := ipc32.o
-obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
+sysv-$(CONFIG_SYSVIPC)         := ipc32.o
+obj-$(CONFIG_IA32_EMULATION)   += $(sysv-y)
 
-obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
+obj-$(CONFIG_IA32_AOUT)                += ia32_aout.o
 
-audit-class-$(CONFIG_AUDIT) := audit.o
-obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
+audit-class-$(CONFIG_AUDIT)    := audit.o
+obj-$(CONFIG_IA32_EMULATION)   += $(audit-class-y)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 8215e56..18fa410 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-extra-y                := head_$(BITS).o head$(BITS).o head.o vmlinux.lds
+extra-y := head_$(BITS).o head$(BITS).o head.o vmlinux.lds
 
 CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
 
@@ -21,7 +21,7 @@ obj-y                 := process_$(BITS).o signal.o 
entry_$(BITS).o
 obj-y                  += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
 obj-y                  += time.o ioport.o ldt.o dumpstack.o nmi.o
 obj-y                  += setup.o x86_init.o i8259.o irqinit.o jump_label.o
-obj-$(CONFIG_IRQ_WORK)  += irq_work.o
+obj-$(CONFIG_IRQ_WORK) += irq_work.o
 obj-y                  += probe_roms.o
 obj-$(CONFIG_X86_32)   += sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)   += sys_x86_64.o x8664_ksyms_64.o
@@ -76,10 +76,10 @@ obj-$(CONFIG_EARLY_PRINTK)  += early_printk.o
 obj-$(CONFIG_HPET_TIMER)       += hpet.o
 obj-$(CONFIG_APB_TIMER)                += apb_timer.o
 
-obj-$(CONFIG_AMD_NB)           += amd_nb.o
-obj-$(CONFIG_DEBUG_RODATA_TEST)        += test_rodata.o
-obj-$(CONFIG_DEBUG_NX_TEST)    += test_nx.o
-obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
+obj-$(CONFIG_AMD_NB)                   += amd_nb.o
+obj-$(CONFIG_DEBUG_RODATA_TEST)                += test_rodata.o
+obj-$(CONFIG_DEBUG_NX_TEST)            += test_nx.o
+obj-$(CONFIG_DEBUG_NMI_SELFTEST)       += nmi_selftest.o
 
 obj-$(CONFIG_KVM_GUEST)                += kvm.o
 obj-$(CONFIG_KVM_CLOCK)                += kvmclock.o
@@ -94,7 +94,7 @@ microcode-$(CONFIG_MICROCODE_INTEL)   += microcode_intel.o
 microcode-$(CONFIG_MICROCODE_AMD)      += microcode_amd.o
 obj-$(CONFIG_MICROCODE)                        += microcode.o
 
-obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
+obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION)        += check.o
 
 obj-$(CONFIG_SWIOTLB)                  += pci-swiotlb.o
 obj-$(CONFIG_OF)                       += devicetree.o
diff --git a/arch/x86/kernel/cpu/mcheck/Makefile 
b/arch/x86/kernel/cpu/mcheck/Makefile
index bb34b03..c8dc62c 100644
--- a/arch/x86/kernel/cpu/mcheck/Makefile
+++ b/arch/x86/kernel/cpu/mcheck/Makefile
@@ -3,7 +3,7 @@ obj-y                           =  mce.o mce-severity.o
 obj-$(CONFIG_X86_ANCIENT_MCE)  += winchip.o p5.o
 obj-$(CONFIG_X86_MCE_INTEL)    += mce_intel.o
 obj-$(CONFIG_X86_MCE_AMD)      += mce_amd.o
-obj-$(CONFIG_X86_MCE_THRESHOLD) += threshold.o
+obj-$(CONFIG_X86_MCE_THRESHOLD)        += threshold.o
 obj-$(CONFIG_X86_MCE_INJECT)   += mce-inject.o
 
 obj-$(CONFIG_X86_THERMAL_VECTOR) += therm_throt.o
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index b00f678..3591f40 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -27,21 +27,21 @@ lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o
 obj-y += msr.o msr-reg.o msr-reg-export.o
 
 ifeq ($(CONFIG_X86_32),y)
-        obj-y += atomic64_32.o
-        lib-y += atomic64_cx8_32.o
-        lib-y += checksum_32.o
-        lib-y += strstr_32.o
-        lib-y += string_32.o
-        lib-y += cmpxchg.o
+       obj-y += atomic64_32.o
+       lib-y += atomic64_cx8_32.o
+       lib-y += checksum_32.o
+       lib-y += strstr_32.o
+       lib-y += string_32.o
+       lib-y += cmpxchg.o
 ifneq ($(CONFIG_X86_CMPXCHG64),y)
-        lib-y += cmpxchg8b_emu.o atomic64_386_32.o
+       lib-y += cmpxchg8b_emu.o atomic64_386_32.o
 endif
-        lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
+       lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
 else
-        obj-y += iomap_copy_64.o
-        lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o
-        lib-y += thunk_64.o clear_page_64.o copy_page_64.o
-        lib-y += memmove_64.o memset_64.o
-        lib-y += copy_user_64.o copy_user_nocache_64.o
+       obj-y += iomap_copy_64.o
+       lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o
+       lib-y += thunk_64.o clear_page_64.o copy_page_64.o
+       lib-y += memmove_64.o memset_64.o
+       lib-y += copy_user_64.o copy_user_nocache_64.o
        lib-y += cmpxchg16b_emu.o
 endif
diff --git a/arch/x86/math-emu/Makefile b/arch/x86/math-emu/Makefile
index 9b0c63b..b66a055 100644
--- a/arch/x86/math-emu/Makefile
+++ b/arch/x86/math-emu/Makefile
@@ -1,5 +1,5 @@
 #
-#               Makefile for wm-FPU-emu
+#              Makefile for wm-FPU-emu
 #
 
 #DEBUG = -DDEBUGGING
diff --git a/arch/x86/oprofile/Makefile b/arch/x86/oprofile/Makefile
index 1599f56..871d7fb 100644
--- a/arch/x86/oprofile/Makefile
+++ b/arch/x86/oprofile/Makefile
@@ -7,5 +7,5 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
                timer_int.o nmi_timer_int.o )
 
 oprofile-y                             := $(DRIVER_OBJS) init.o backtrace.o
-oprofile-$(CONFIG_X86_LOCAL_APIC)      += nmi_int.o op_model_amd.o \
+oprofile-$(CONFIG_X86_LOCAL_APIC)      += nmi_int.o op_model_amd.o \
                                           op_model_ppro.o op_model_p4.o
diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index 3af5a1e..18ae3da 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -7,11 +7,11 @@ obj-$(CONFIG_PCI_OLPC)                += olpc.o
 obj-$(CONFIG_PCI_XEN)          += xen.o
 
 obj-y                          += fixup.o
-obj-$(CONFIG_X86_INTEL_CE)      += ce4100.o
+obj-$(CONFIG_X86_INTEL_CE)     += ce4100.o
 obj-$(CONFIG_ACPI)             += acpi.o
 obj-y                          += legacy.o irq.o
 
-obj-$(CONFIG_STA2X11)           += sta2x11-fixup.o
+obj-$(CONFIG_STA2X11)          += sta2x11-fixup.o
 
 obj-$(CONFIG_X86_VISWS)                += visws.o
 
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index 73b8be0..709de1f 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1 +1 @@
-obj-$(CONFIG_EFI)              += efi.o efi_$(BITS).o efi_stub_$(BITS).o
+obj-$(CONFIG_EFI)              += efi.o efi_$(BITS).o efi_stub_$(BITS).o
diff --git a/arch/x86/platform/olpc/Makefile b/arch/x86/platform/olpc/Makefile
index fd332c5..bb26fdc 100644
--- a/arch/x86/platform/olpc/Makefile
+++ b/arch/x86/platform/olpc/Makefile
@@ -1,5 +1,5 @@
 obj-$(CONFIG_OLPC)             += olpc.o olpc_ofw.o olpc_dt.o
-obj-$(CONFIG_OLPC_XO1_PM)              += olpc-xo1-pm.o xo1-wakeup.o
+obj-$(CONFIG_OLPC_XO1_PM)      += olpc-xo1-pm.o xo1-wakeup.o
 obj-$(CONFIG_OLPC_XO1_RTC)     += olpc-xo1-rtc.o
 obj-$(CONFIG_OLPC_XO1_SCI)     += olpc-xo1-sci.o
 obj-$(CONFIG_OLPC_XO15_SCI)    += olpc-xo15-sci.o
diff --git a/arch/x86/realmode/Makefile b/arch/x86/realmode/Makefile
index 94f7fbe..6eb6b0c 100644
--- a/arch/x86/realmode/Makefile
+++ b/arch/x86/realmode/Makefile
@@ -7,10 +7,10 @@
 #
 #
 
-subdir- := rm
+subdir-        := rm
 
-obj-y += init.o
-obj-y += rmpiggy.o
+obj-y  += init.o
+obj-y  += rmpiggy.o
 
 $(obj)/rmpiggy.o: $(obj)/rm/realmode.bin
 
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 5b84a2d..ee67afb 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -79,4 +79,4 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP 
-D__KERNEL__ -D_WAKEUP \
                   $(call cc-option, -fno-stack-protector) \
                   $(call cc-option, -mpreferred-stack-boundary=2)
 KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
-GCOV_PROFILE := n
+GCOV_PROFILE   := n
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index 733057b..d559bf8 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -1,15 +1,15 @@
 PHONY += posttest
 
 ifeq ($(KBUILD_VERBOSE),1)
-  posttest_verbose = -v
+       posttest_verbose = -v
 else
-  posttest_verbose =
+       posttest_verbose =
 endif
 
 ifeq ($(CONFIG_64BIT),y)
-  posttest_64bit = -y
+       posttest_64bit = -y
 else
-  posttest_64bit = -n
+       posttest_64bit = -n
 endif
 
 distill_awk = $(srctree)/arch/x86/tools/distill.awk
diff --git a/arch/x86/um/os-Linux/Makefile b/arch/x86/um/os-Linux/Makefile
index 253bfb8..97beee9 100644
--- a/arch/x86/um/os-Linux/Makefile
+++ b/arch/x86/um/os-Linux/Makefile
@@ -5,8 +5,8 @@
 
 obj-y = registers.o task_size.o mcontext.o
 
-obj-$(CONFIG_X86_32) += tls.o
-obj-$(CONFIG_64BIT) += prctl.o
+obj-$(CONFIG_X86_32)   += tls.o
+obj-$(CONFIG_64BIT)    += prctl.o
 
 USER_OBJS := $(obj-y)
 
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index 6c803ca..38c0c2c 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -22,7 +22,7 @@ targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
 export CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
-       -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
+       -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
 
 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
 
@@ -38,8 +38,8 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
 # optimize sibling calls.
 #
 CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 
\
-       $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
-       -fno-omit-frame-pointer -foptimize-sibling-calls
+       $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
+       -fno-omit-frame-pointer -foptimize-sibling-calls
 
 $(vobjs): KBUILD_CFLAGS += $(CFL)
 
@@ -49,8 +49,8 @@ $(vobjs): KBUILD_CFLAGS += $(CFL)
 CFLAGS_REMOVE_vdso-note.o = -pg -fprofile-arcs -ftest-coverage
 CFLAGS_REMOVE_um_vdso.o = -pg -fprofile-arcs -ftest-coverage
 
-targets += vdso-syms.lds
-obj-$(VDSO64-y)                        += vdso-syms.lds
+targets                += vdso-syms.lds
+obj-$(VDSO64-y)        += vdso-syms.lds
 
 #
 # Match symbols in the DSO that look like VDSO*; produce a file of constants.
@@ -70,9 +70,9 @@ $(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
 #
 quiet_cmd_vdso = VDSO    $@
       cmd_vdso = $(CC) -nostdlib -o $@ \
-                      $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
-                      -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
-                sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
+               $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
+               -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
+               sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
 
 VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
 GCOV_PROFILE := n
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index fd14be1..8a301bc 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -35,7 +35,7 @@ export CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
                        -Wl,--no-undefined \
-                       -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
+                       -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
 
 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
 
@@ -51,8 +51,8 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
 # optimize sibling calls.
 #
 CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 
\
-       $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
-       -fno-omit-frame-pointer -foptimize-sibling-calls
+       $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
+       -fno-omit-frame-pointer -foptimize-sibling-calls
 
 $(vobjs): KBUILD_CFLAGS += $(CFL)
 
@@ -133,9 +133,9 @@ VDSO_LDFLAGS_vdso32.lds = -m32 -Wl,-soname=linux-gate.so.1
 # is not a kbuild sub-make subdirectory.
 override obj-dirs = $(dir $(obj)) $(obj)/vdso32/
 
-targets += vdso32/vdso32.lds
-targets += $(vdso32-images) $(vdso32-images:=.dbg)
-targets += vdso32/note.o $(vdso32.so-y:%=vdso32/%.o)
+targets        += vdso32/vdso32.lds
+targets        += $(vdso32-images) $(vdso32-images:=.dbg)
+targets        += vdso32/note.o $(vdso32.so-y:%=vdso32/%.o)
 
 extra-y        += $(vdso32-images)
 
diff --git a/arch/x86/video/Makefile b/arch/x86/video/Makefile
index 2c447c9..0d63a4a 100644
--- a/arch/x86/video/Makefile
+++ b/arch/x86/video/Makefile
@@ -1 +1 @@
-obj-$(CONFIG_FB)               += fbdev.o
+obj-$(CONFIG_FB)       += fbdev.o
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 96ab2c0..f1333c3 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -15,7 +15,7 @@ obj-y         := enlighten.o setup.o multicalls.o mmu.o irq.o 
\
                        grant-table.o suspend.o platform-pci-unplug.o \
                        p2m.o
 
-obj-$(CONFIG_EVENT_TRACING) += trace.o
+obj-$(CONFIG_EVENT_TRACING)    += trace.o
 
 obj-$(CONFIG_SMP)              += smp.o
 obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
-- 
 Kirill A. Shutemov
--
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