linux-kernel - Re: [PATCH 1/1] Sealable memory support

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Message-ID: <201705312122.ylPZBHBW%fengguang.wu@intel.com>
Date:   Wed, 31 May 2017 21:55:31 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Igor Stoppa <igor.stoppa@...wei.com>
Cc:     kbuild-all@...org, mhocko@...nel.org, dave.hansen@...el.com,
        labbott@...hat.com, linux-mm@...ck.org,
        kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org,
        Igor Stoppa <igor.stoppa@...wei.com>
Subject: Re: [PATCH 1/1] Sealable memory support

Hi Igor,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.12-rc3 next-20170531]
[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/Igor-Stoppa/Sealable-memory-support/20170522-163525
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: x86_64-randconfig-v0-05311736 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   In file included from mm/smalloc.c:24:
>> mm/smalloc.h:47: error: flexible array member in otherwise empty struct
   mm/smalloc.c: In function 'smalloc_seal_set':
   mm/smalloc.c:135: error: implicit declaration of function 'set_memory_ro'
   mm/smalloc.c:138: error: implicit declaration of function 'set_memory_rw'

vim +47 mm/smalloc.h

    41		struct mutex lock;
    42		enum seal_t seal;
    43	};
    44	
    45	struct smalloc_node {
    46		NODE_HEADER;
  > 47		__SMALLOC_ALIGNED__ align_t data[];
    48	};
    49	
    50	#define smalloc_seal(pool) \

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0-DAY kernel test infrastructure                Open Source Technology Center
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