Re: [PATCH 27/28] ibnbd: add doc for how to use ibnbd and sysfs interface

Hi Jack,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.11-rc3 next-20170324]
[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/Jack-Wang/INFINIBAND-NETWORK-BLOCK-DEVICE-IBNBD/20170325-101629
config: ia64-allyesconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

   drivers/block/ibnbd_server/built-in.o: In function `ibnbd_io_mode_str':

quoted

(.text+0x5fa0): multiple definition of `ibnbd_io_mode_str'

   drivers/block/ibnbd_client/built-in.o:(.text+0xb7a0): first defined here
   drivers/block/ibnbd_server/built-in.o: In function `ibnbd_validate_message':

quoted

(.text+0x5a40): multiple definition of `ibnbd_validate_message'

   drivers/block/ibnbd_client/built-in.o:(.text+0xb240): first defined here
   drivers/block/ibnbd_server/built-in.o: In function `rq_cmd_to_ibnbd_io_flags':

quoted

(.text+0x5880): multiple definition of `rq_cmd_to_ibnbd_io_flags'

   drivers/block/ibnbd_client/built-in.o:(.text+0xb080): first defined here
   drivers/block/ibnbd_server/built-in.o: In function `ibnbd_access_mode_str':

quoted

(.text+0x6000): multiple definition of `ibnbd_access_mode_str'

   drivers/block/ibnbd_client/built-in.o:(.text+0xb800): first defined here
   drivers/block/ibnbd_server/built-in.o: In function `ibnbd_io_flags_to_bi_rw':

quoted

(.text+0x57e0): multiple definition of `ibnbd_io_flags_to_bi_rw'

   drivers/block/ibnbd_client/built-in.o:(.text+0xafe0): first defined here

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