linux-kernel - Re: [PATCH V2 5/8] net: mediatek: fix mtk_pending

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Date:	Fri, 8 Apr 2016 06:00:00 +0800
From:	kbuild test robot <lkp@...el.com>
To:	John Crispin <blogic@...nwrt.org>
Cc:	kbuild-all@...org, "David S. Miller" <davem@...emloft.net>,
	Felix Fietkau <nbd@...nwrt.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Sean Wang (王志亘) <sean.wang@...iatek.com>,
	netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org, John Crispin <blogic@...nwrt.org>
Subject: Re: [PATCH V2 5/8] net: mediatek: fix mtk_pending_work

Hi John,

[auto build test ERROR on net-next/master]
[also build test ERROR on v4.6-rc2 next-20160407]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/John-Crispin/net-mediatek-make-the-driver-pass-stress-tests/20160408-033430
config: arm-allyesconfig (attached as .config)
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=arm 

Note: the linux-review/John-Crispin/net-mediatek-make-the-driver-pass-stress-tests/20160408-033430 HEAD e648090f60723da77108430208b4b957c481048b builds fine.
      It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/list.h:8:0,
                    from include/linux/kobject.h:20,
                    from include/linux/device.h:17,
                    from include/linux/node.h:17,
                    from include/linux/cpu.h:16,
                    from include/linux/of_device.h:4,
                    from drivers/net/ethernet/mediatek/mtk_eth_soc.c:15:
   drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_pending_work':
>> include/linux/kernel.h:824:27: error: 'struct mtk_eth' has no member named 'pending_work'
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                              ^
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1433:24: note: in expansion of macro 'container_of'
     struct mtk_eth *eth = container_of(work, struct mtk_eth, pending_work);
                           ^
   include/linux/kernel.h:824:48: warning: initialization from incompatible pointer type
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1433:24: note: in expansion of macro 'container_of'
     struct mtk_eth *eth = container_of(work, struct mtk_eth, pending_work);
                           ^
   include/linux/kernel.h:824:48: warning: (near initialization for 'eth')
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1433:24: note: in expansion of macro 'container_of'
     struct mtk_eth *eth = container_of(work, struct mtk_eth, pending_work);
                           ^
   In file included from include/linux/compiler.h:60:0,
                    from include/linux/ioport.h:12,
                    from include/linux/device.h:16,
                    from include/linux/node.h:17,
                    from include/linux/cpu.h:16,
                    from include/linux/of_device.h:4,
                    from drivers/net/ethernet/mediatek/mtk_eth_soc.c:15:
>> include/linux/compiler-gcc.h:158:2: error: 'struct mtk_eth' has no member named 'pending_work'
     __builtin_offsetof(a, b)
     ^
   include/linux/stddef.h:16:32: note: in expansion of macro '__compiler_offsetof'
    #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
                                   ^
   include/linux/kernel.h:825:29: note: in expansion of macro 'offsetof'
     (type *)( (char *)__mptr - offsetof(type,member) );})
                                ^
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1433:24: note: in expansion of macro 'container_of'
     struct mtk_eth *eth = container_of(work, struct mtk_eth, pending_work);
                           ^

vim +824 include/linux/kernel.h

^1da177e Linus Torvalds 2005-04-16  818   * @ptr:	the pointer to the member.
^1da177e Linus Torvalds 2005-04-16  819   * @type:	the type of the container struct this is embedded in.
^1da177e Linus Torvalds 2005-04-16  820   * @member:	the name of the member within the struct.
^1da177e Linus Torvalds 2005-04-16  821   *
^1da177e Linus Torvalds 2005-04-16  822   */
^1da177e Linus Torvalds 2005-04-16  823  #define container_of(ptr, type, member) ({			\
^1da177e Linus Torvalds 2005-04-16 @824  	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
^1da177e Linus Torvalds 2005-04-16  825  	(type *)( (char *)__mptr - offsetof(type,member) );})
^1da177e Linus Torvalds 2005-04-16  826  
b9d4f426 Arnaud Lacombe 2011-07-25  827  /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */

:::::: The code at line 824 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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