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

From: kbuild test robot
Date: Fri Jun 15 2018 - 10:54:58 EST

Hi Andy,

I love your patch! Yet something to improve:

[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]

config: i386-randconfig-b0-06141412 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
# 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 Intel Corporation

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