This warning is enabled at "make W=1" level, and found a bunch of actual problems in code that adds -I flags to nonexisting directories. All of these are harmless, but clearly wrong. Kbuild itself also adds a bunch of extra directories, including in some cases those outside of the kernel tree (e.g. ../../include), which can have surprising consequences. This series fixes all the warnings I found with -Wmissing-include-dirs enabled on ARM randconfigs and x86 allmodconfig. The non-Kbuild patches can all be applied independently, while we probably want the Kbuild stuff to be kept as a series, if we decide to merge them. I have added my test patch at the end, mainly to see if the Kbuild bot finds any other warnings on additional architectures. Arnd Arnd Bergmann (11): Kbuild: don't add ../../ to include path Kbuild: avoid duplicate include path Kbuild: always prefix objtree in LINUXINCLUDE Kbuild: arch: look for generated headers in obtree Kbuild: don't add obj tree in additional includes ARM: don't include removed directories ARM: hide mach-*/ include for ARM_SINGLE_ARMV7M drm: amd: remove broken include path net: skfb: remove obsolete -I cflag rtlwifi: don't add include path for rtl8188ee [EXPERIMENTAL] Kbuild: enable -Wmissing-include-dirs by default Makefile | 16 ++++++++++------ arch/alpha/boot/Makefile | 2 +- arch/arm/Makefile | 2 ++ arch/arm/mach-mvebu/Makefile | 3 +-- arch/arm/mach-realview/Makefile | 3 +-- arch/arm/mach-s5pv210/Makefile | 2 +- arch/powerpc/boot/Makefile | 2 +- arch/powerpc/kvm/Makefile | 2 +- arch/s390/boot/compressed/Makefile | 4 ++-- arch/um/Makefile | 4 ++-- arch/x86/boot/Makefile | 2 +- arch/x86/realmode/rm/Makefile | 2 +- drivers/gpu/drm/amd/acp/Makefile | 2 -- drivers/net/fddi/skfp/Makefile | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8188ee/Makefile | 2 +- scripts/Kbuild.include | 2 +- scripts/Makefile.lib | 7 ++++--- 17 files changed, 31 insertions(+), 28 deletions(-) -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
