linux-kernel - Re: [PATCH 2/2] dm snap: add fake origin_direct

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Date:	Wed, 29 Jun 2016 04:27:01 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Toshi Kani <toshi.kani@....com>
Cc:	kbuild-all@...org, snitzer@...hat.com, agk@...hat.com,
	dan.j.williams@...el.com, linux-nvdimm@...ts.01.org,
	dm-devel@...hat.com, linux-raid@...r.kernel.org,
	linux-kernel@...r.kernel.org, Toshi Kani <toshi.kani@....com>
Subject: Re: [PATCH 2/2] dm snap: add fake origin_direct_access

Hi,

[auto build test WARNING on dm/for-next]
[also build test WARNING on v4.7-rc5 next-20160628]
[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/Toshi-Kani/Support-DAX-for-device-mapper-dm-linear-devices/20160629-034110
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: x86_64-lkp (attached as .config)
compiler: gcc-4.9 (Debian 4.9.3-14) 4.9.3
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/md/dm-snap.c:2370:2: error: unknown field 'direct_access' specified in initializer
     .direct_access = origin_direct_access,
     ^
>> drivers/md/dm-snap.c:2370:2: warning: initialization from incompatible pointer type
   drivers/md/dm-snap.c:2370:2: warning: (near initialization for 'origin_target.io_hints')

vim +2370 drivers/md/dm-snap.c

  2354		struct dm_origin *o = ti->private;
  2355	
  2356		return fn(ti, o->dev, 0, ti->len, data);
  2357	}
  2358	
  2359	static struct target_type origin_target = {
  2360		.name    = "snapshot-origin",
  2361		.version = {1, 9, 0},
  2362		.module  = THIS_MODULE,
  2363		.ctr     = origin_ctr,
  2364		.dtr     = origin_dtr,
  2365		.map     = origin_map,
  2366		.resume  = origin_resume,
  2367		.postsuspend = origin_postsuspend,
  2368		.status  = origin_status,
  2369		.iterate_devices = origin_iterate_devices,
> 2370		.direct_access = origin_direct_access,
  2371	};
  2372	
  2373	static struct target_type snapshot_target = {
  2374		.name    = "snapshot",
  2375		.version = {1, 15, 0},
  2376		.module  = THIS_MODULE,
  2377		.ctr     = snapshot_ctr,
  2378		.dtr     = snapshot_dtr,

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/octet-stream" (23378 bytes)