Commit-ID:  d6289f36aa7d5893d091a7a0c67eee7798719f03
Gitweb:     https://git.kernel.org/tip/d6289f36aa7d5893d091a7a0c67eee7798719f03
Author:     Cao jin <[email protected]>
AuthorDate: Fri, 16 Mar 2018 16:49:44 +0800
Committer:  Ingo Molnar <[email protected]>
CommitDate: Sat, 31 Mar 2018 08:02:07 +0200

x86/build: Don't pass in -D__KERNEL__ multiple times

Some .<target>.cmd files under arch/x86 are showing two instances of
-D__KERNEL__, like arch/x86/boot/ and arch/x86/realmode/rm/.

__KERNEL__ is already defined in KBUILD_CPPFLAGS in the top Makefile,
so it can be dropped safely.

Signed-off-by: Cao jin <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Michal Marek <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 arch/x86/Makefile                 | 3 +--
 arch/x86/boot/compressed/Makefile | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index d798e36d103c..a517852dad55 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -31,8 +31,7 @@ endif
 CODE16GCC_CFLAGS := -m32 -Wa,$(srctree)/arch/x86/boot/code16gcc.h
 M16_CFLAGS      := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
 
-REALMODE_CFLAGS        := $(M16_CFLAGS) -g -Os -D__KERNEL__ \
-                  -DDISABLE_BRANCH_PROFILING \
+REALMODE_CFLAGS        := $(M16_CFLAGS) -g -Os -DDISABLE_BRANCH_PROFILING \
                   -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
                   -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
                   -mno-mmx -mno-sse
diff --git a/arch/x86/boot/compressed/Makefile 
b/arch/x86/boot/compressed/Makefile
index f25e1530e064..f484ae0ece93 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -26,7 +26,7 @@ KCOV_INSTRUMENT               := n
 targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma 
\
        vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
 
-KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ -O2
+KBUILD_CFLAGS := -m$(BITS) -O2
 KBUILD_CFLAGS += -fno-strict-aliasing $(call cc-option, -fPIE, -fPIC)
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 cflags-$(CONFIG_X86_32) := -march=i386

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