linux-kernel - Re: [PATCH v1] mm, sysctl: Add sysctl for controlling VM

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Message-ID: <201608270104.7xTlu0Hk%fengguang.wu@intel.com>
Date:   Sat, 27 Aug 2016 01:17:05 +0800
From:   kbuild test robot <lkp@...el.com>
To:     robert.foss@...labora.com
Cc:     kbuild-all@...org, akpm@...ux-foundation.org,
        kirill.shutemov@...ux.intel.com, vbabka@...e.cz, mhocko@...e.com,
        mingo@...nel.org, dave.hansen@...ux.intel.com, hannes@...xchg.org,
        dan.j.williams@...el.com, iamjoonsoo.kim@....com, acme@...hat.com,
        keescook@...omium.org, mgorman@...hsingularity.net,
        atomlin@...hat.com, hughd@...gle.com, dyoung@...hat.com,
        viro@...iv.linux.org.uk, dcashman@...gle.com, w@....eu,
        idryomov@...il.com, yang.shi@...aro.org, wad@...omium.org,
        vkuznets@...hat.com, vdavydov@...tuozzo.com, vitalywool@...il.com,
        oleg@...hat.com, gang.chen.5i5j@...il.com, koct9i@...il.com,
        aarcange@...hat.com, aryabinin@...tuozzo.com,
        kuleshovmail@...il.com, minchan@...nel.org, mguzik@...hat.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        krasin@...gle.com, Roland McGrath <mcgrathr@...omium.org>,
        Mandeep Singh Baines <msb@...omium.org>,
        Ben Zhang <benzh@...omium.org>,
        Filipe Brandenburger <filbranden@...omium.org>,
        Robert Foss <robert.foss@...labora.com>
Subject: Re: [PATCH v1] mm, sysctl: Add sysctl for controlling VM_MAYEXEC
 taint

Hi Will,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.8-rc3 next-20160825]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/robert-foss-collabora-com/mm-sysctl-Add-sysctl-for-controlling-VM_MAYEXEC-taint/20160827-003416
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: sh-rsk7269_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

All errors (new ones prefixed by >>):

>> mm/util.c:433:46: error: 'CONFIG_MMAP_NOEXEC_TAINT' undeclared here (not in a function)
    int sysctl_mmap_noexec_taint __read_mostly = CONFIG_MMAP_NOEXEC_TAINT;
                                                 ^

vim +/CONFIG_MMAP_NOEXEC_TAINT +433 mm/util.c

   427	EXPORT_SYMBOL_GPL(__page_mapcount);
   428	
   429	int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS;
   430	int sysctl_overcommit_ratio __read_mostly = 50;
   431	unsigned long sysctl_overcommit_kbytes __read_mostly;
   432	int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
 > 433	int sysctl_mmap_noexec_taint __read_mostly = CONFIG_MMAP_NOEXEC_TAINT;
   434	unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
   435	unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
   436	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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