Re: [PATCH v4 02/27] btrfs: Get zone information of zoned block devices

From: kbuild test robot <lkp@intel.com>
To: Naohiro Aota <naohiro.aota@wdc.com>
Cc: kbuild-all@01.org, linux-btrfs@vger.kernel.org,
	David Sterba <dsterba@suse.com>, Chris Mason <clm@fb.com>,
	Josef Bacik <josef@toxicpanda.com>,
	Nikolay Borisov <nborisov@suse.com>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Matias Bjorling <Matias.Bjorling@wdc.com>,
	Johannes Thumshirn <jthumshirn@suse.de>,
	Hannes Reinecke <hare@suse.com>,
	Anand Jain <anand.jain@oracle.com>,
	linux-fsdevel@vger.kernel.org,
	Naohiro Aota <naohiro.aota@wdc.com>
Subject: Re: [PATCH v4 02/27] btrfs: Get zone information of zoned block devices
Date: Sat, 24 Aug 2019 18:49:42 +0800	[thread overview]
Message-ID: <201908241820.QyEPQB7c%lkp@intel.com> (raw)
In-Reply-To: <20190823101036.796932-3-naohiro.aota@wdc.com>

[-- Attachment #1: Type: text/plain, Size: 1879 bytes --]

Hi Naohiro,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc5 next-20190823]
[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/Naohiro-Aota/btrfs-zoned-block-device-support/20190824-160033
config: x86_64-randconfig-g003-201933 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-10) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   fs/btrfs/hmzoned.c: In function 'btrfs_get_dev_zones':
>> fs/btrfs/hmzoned.c:25:8: error: implicit declaration of function 'blkdev_report_zones'; did you mean 'blkdev_nr_zones'? [-Werror=implicit-function-declaration]
     ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT,
           ^~~~~~~~~~~~~~~~~~~
           blkdev_nr_zones
   cc1: some warnings being treated as errors

vim +25 fs/btrfs/hmzoned.c

    18	
    19	static int btrfs_get_dev_zones(struct btrfs_device *device, u64 pos,
    20				       struct blk_zone *zones,
    21				       unsigned int *nr_zones, gfp_t gfp_mask)
    22	{
    23		int ret;
    24	
  > 25		ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT,
    26					  zones, nr_zones, gfp_mask);
    27		if (ret != 0) {
    28			btrfs_err_in_rcu(device->fs_info,
    29					 "get zone at %llu on %s failed %d", pos,
    30					 rcu_str_deref(device->name), ret);
    31			return ret;
    32		}
    33		if (!*nr_zones)
    34			return -EIO;
    35	
    36		return 0;
    37	}
    38	

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

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 30461 bytes --]