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Date:   Sun, 11 Aug 2019 10:50:39 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     kbuild-all@...org, linux-kbuild@...r.kernel.org,
        Christoph Hellwig <hch@....de>, Arnd Bergmann <arnd@...db.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
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]

url:    https://github.com/0day-ci/linux/commits/Masahiro-Yamada/kbuild-re-implement-detection-of-CONFIG-options-leaked-to-user-space/20190811-085800
config: i386-defconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-10) 7.4.0
reproduce:
        # 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 <lkp@...el.com>

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
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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