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Date:   Sun, 11 Aug 2019 10:50:39 +0800
From:   kbuild test robot <>
To:     Masahiro Yamada <>
        Christoph Hellwig <>, Arnd Bergmann <>,
        Sam Ravnborg <>,
        Masahiro Yamada <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Martin KaFai Lau <>,
        Song Liu <>, Yonghong Song <>,,,
Subject: Re: [PATCH v2] kbuild: re-implement detection of CONFIG options
 leaked to user-space

Hi Masahiro,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc3 next-20190809]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

config: i386-defconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-10) 7.4.0
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <>

All warnings (new ones prefixed by >>):

>> warning: include/uapi/asm-generic/fcntl.h: leak CONFIG_64BIT to user-space
>> warning: include/uapi/linux/raw.h: leak CONFIG_MAX_RAW_DEVS to user-space
>> warning: include/uapi/linux/pktcdvd.h: leak CONFIG_CDROM_PKTCDVD_WCACHE to user-space
>> warning: include/uapi/linux/hw_breakpoint.h: leak CONFIG_HAVE_MIXED_BREAKPOINTS_REGS to user-space
>> warning: include/uapi/linux/eventpoll.h: leak CONFIG_PM_SLEEP to user-space
>> warning: include/uapi/linux/elfcore.h: leak CONFIG_BINFMT_ELF_FDPIC to user-space
>> warning: include/uapi/linux/atmdev.h: leak CONFIG_COMPAT to user-space
>> warning: arch/x86/include/uapi/asm/mman.h: leak CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS to user-space
>> warning: arch/x86/include/uapi/asm/auxvec.h: leak CONFIG_IA32_EMULATION to user-space
>> warning: arch/x86/include/uapi/asm/auxvec.h: leak CONFIG_X86_64 to user-space
   1 real  10 user  4 sys  762.47% cpu 	make INSTALL_HDR_PATH=/tmp/usr/src/linux-headers-i386-defconfig-723c8e514c09af9516a181307cdaa1ee6a874ffd headers_install

0-DAY kernel test infrastructure                Open Source Technology Center                   Intel Corporation

Download attachment ".config.gz" of type "application/gzip" (28074 bytes)

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