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authorH. Peter Anvin <hpa@zytor.com>2012-03-22 11:08:18 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-07 08:53:35 -0700
commit7229d3aea8bd7b60eaad158c2b9e749fff41940b (patch)
treefd4ba039d9718a396349edc3868e7c965defbe6d /arch
parent82c4c5d001608a9a3194bdf74fba824e1c2ec686 (diff)
downloadlwn-7229d3aea8bd7b60eaad158c2b9e749fff41940b.tar.gz
lwn-7229d3aea8bd7b60eaad158c2b9e749fff41940b.zip
x86, boot: Correct CFLAGS for hostprogs
commit 446e1c86d51d0823e003a43a2b85c430efce2733 upstream. This is a partial revert of commit: d40f833 "Restrict CFLAGS for hostprogs" The endian-manipulation macros in tools/include need <linux/types.h>, but the hostprogs in arch/x86/boot need several headers from the kernel build tree, which means we have to add the kernel headers to the include path. This picks up <linux/types.h> from the kernel tree, which gives a warning. Since this use of <linux/types.h> is intentional, add -D__EXPORTED_HEADERS__ to the command line to silence the warning. A better way to fix this would be to always install the exported kernel headers into $(objtree)/usr/include as a standard part of the kernel build, but that is a lot more involved. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Matt Fleming <matt.fleming@intel.com> Link: http://lkml.kernel.org/r/1330436245-24875-5-git-send-email-matt@console-pimps.org Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/boot/Makefile6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 3e02148bb774..5a747dd884db 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -37,9 +37,9 @@ setup-y += video-bios.o
targets += $(setup-y)
hostprogs-y := mkcpustr tools/build
-HOSTCFLAGS_mkcpustr.o := -I$(srctree)/arch/$(SRCARCH)/include
-HOST_EXTRACFLAGS += -I$(objtree)/include -I$(srctree)/tools/include \
- -include $(srctree)/include/linux/kconfig.h
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include $(LINUXINCLUDE) \
+ -D__EXPORTED_HEADERS__
+
$(obj)/cpu.o: $(obj)/cpustr.h
quiet_cmd_cpustr = CPUSTR $@