Re: [PATCH v2 1/5] md: Avoid namespace collision with bitmap API

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On Fri, 2018-06-15 at 23:09 +0800, kbuild test robot wrote:
> Hi Andy,
> 
> I love your patch! Yet something to improve:

Thanks!

I fixed that locally (definitely that module wasn't compiled by
default). Though I would wait to gather more comments before sending v3.

> 
> [auto build test ERROR on next-20180615]
> [also build test ERROR on v4.17]
> [cannot apply to md/for-next linus/master dm/for-next v4.17 v4.17-rc7
> v4.17-rc6]
> [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/Andy-Shevchenko/bitma
> p-Introduce-alloc-free-helpers/20180615-214724
> config: i386-randconfig-b0-06141412 (attached as .config)
> compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> All errors (new ones prefixed by >>):
> 
> > > drivers/md/persistent-data/dm-space-map-common.c:111:23: error:
> > > 'bitmap_prepare_for_write' undeclared here (not in a function)
> 
>      .prepare_for_write = bitmap_prepare_for_write,
>                           ^
> > > drivers/md/persistent-data/dm-space-map-common.c:112:11: error:
> > > 'bitmap_check' undeclared here (not in a function)
> 
>      .check = bitmap_check
>               ^
>    drivers/md/persistent-data/dm-space-map-common.c:72:13: warning:
> 'md_bitmap_prepare_for_write' defined but not used [-Wunused-function]
>     static void md_bitmap_prepare_for_write(struct dm_block_validator
> *v,
>                 ^
>    drivers/md/persistent-data/dm-space-map-common.c:84:12: warning:
> 'md_bitmap_check' defined but not used [-Wunused-function]
>     static int md_bitmap_check(struct dm_block_validator *v,
>                ^
> 
> vim +/bitmap_prepare_for_write +111 drivers/md/persistent-data/dm-
> space-map-common.c
> 
> 3241b1d3 Joe Thornber 2011-10-31  108  
> 3241b1d3 Joe Thornber 2011-10-31  109  static struct
> dm_block_validator dm_sm_bitmap_validator = {
> 3241b1d3 Joe Thornber 2011-10-31  110  	.name = "sm_bitmap",
> 3241b1d3 Joe Thornber 2011-10-31 @111  	.prepare_for_write =
> bitmap_prepare_for_write,
> 3241b1d3 Joe Thornber 2011-10-31 @112  	.check = bitmap_check
> 3241b1d3 Joe Thornber 2011-10-31  113  };
> 3241b1d3 Joe Thornber 2011-10-31  114  
> 
> :::::: The code at line 111 was first introduced by commit
> :::::: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 dm: add persistent
> data library
> 
> :::::: TO: Joe Thornber <thornber@xxxxxxxxxx>
> :::::: CC: Alasdair G Kergon <agk@xxxxxxxxxx>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology
> Center
> https://lists.01.org/pipermail/kbuild-all                   Intel
> Corporation

-- 
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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