linux-kernel - Re: [PATCH V2] lib/scatterlist: Add SG_CHAIN and SG

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Date:   Mon, 19 Feb 2018 09:42:29 +0530
From:   Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To:     kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, bart.vanassche@....com,
        jthumshirn@...e.de, axboe@...nel.dk, chris@...is-wilson.co.uk,
        tvrtko.ursulin@...el.com
Subject: Re: [PATCH V2] lib/scatterlist: Add SG_CHAIN and SG_END macros for
 LSB encodings

On 02/18/2018 12:58 AM, kbuild test robot wrote:
> Hi Anshuman,
> 
> Thank you for the patch! Perhaps something to improve:
> 
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.16-rc1 next-20180216]
> [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/Anshuman-Khandual/lib-scatterlist-Add-SG_CHAIN-and-SG_END-macros-for-LSB-encodings/20180218-015554
> config: x86_64-randconfig-s3-02180201 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> All warnings (new ones prefixed by >>):
> 
>    In file included from drivers/staging/rts5208/rtsx.h:180:0,
>                     from drivers/staging/rts5208/rtsx.c:28:
>>> drivers/staging/rts5208/rtsx_chip.h:343:0: warning: "SG_END" redefined
>     #define SG_END   0x02
>     
>    In file included from include/linux/blkdev.h:28:0,
>                     from drivers/staging/rts5208/rtsx.c:23:
>    include/linux/scatterlist.h:69:0: note: this is the location of the previous definition
>     #define SG_END  0x02UL
>     
> 
> vim +/SG_END +343 drivers/staging/rts5208/rtsx_chip.h

SG_END is already defined in a driver. Hence shall we change back
'SG_END' definition as 'SG_EMARK' or any other suggestions ?