linux-kernel - Re: [PATCH] dm stripe: add DAX support

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Message-ID: <201606250301.MfrSJ4uP%fengguang.wu@intel.com>
Date:	Sat, 25 Jun 2016 03:59:20 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Toshi Kani <toshi.kani@....com>
Cc:	kbuild-all@...org, snitzer@...hat.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>,
	Alasdair Kergon <agk@...hat.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>
Subject: Re: [PATCH] dm stripe: add DAX support

Hi,

[auto build test ERROR on dm/for-next]
[also build test ERROR on v4.7-rc4 next-20160624]
[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/dm-stripe-add-DAX-support/20160625-022600
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: x86_64-randconfig-s5-06250328 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

>> drivers/md/dm-stripe.c:452:2: error: unknown field 'direct_access' specified in initializer
     .direct_access = stripe_direct_access,
     ^
>> drivers/md/dm-stripe.c:452:19: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .direct_access = stripe_direct_access,
                      ^~~~~~~~~~~~~~~~~~~~
   drivers/md/dm-stripe.c:452:19: note: (near initialization for 'stripe_target.list.next')
>> drivers/md/dm-stripe.c:441:43: warning: missing braces around initializer [-Wmissing-braces]
    static struct target_type stripe_target = {
                                              ^
   drivers/md/dm-stripe.c:441:43: note: (near initialization for 'stripe_target')
   cc1: some warnings being treated as errors

vim +/direct_access +452 drivers/md/dm-stripe.c

   435		unsigned chunk_size = sc->chunk_size << SECTOR_SHIFT;
   436	
   437		blk_limits_io_min(limits, chunk_size);
   438		blk_limits_io_opt(limits, chunk_size * sc->stripes);
   439	}
   440	
 > 441	static struct target_type stripe_target = {
   442		.name   = "striped",
   443		.version = {1, 5, 1},
   444		.module = THIS_MODULE,
   445		.ctr    = stripe_ctr,
   446		.dtr    = stripe_dtr,
   447		.map    = stripe_map,
   448		.end_io = stripe_end_io,
   449		.status = stripe_status,
   450		.iterate_devices = stripe_iterate_devices,
   451		.io_hints = stripe_io_hints,
 > 452		.direct_access = stripe_direct_access,
   453	};
   454	
   455	int __init dm_stripe_init(void)

---
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