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From: kbuild test robot <lkp@intel.com>
To: Shaohua Li <shli@kernel.org>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
	linux-block@vger.kernel.org, tj@kernel.org,
	gregkh@linuxfoundation.org, hch@lst.de, axboe@fb.com,
	rostedt@goodmis.org, lizefan@huawei.com, Kernel-team@fb.com,
	Shaohua Li <shli@fb.com>
Subject: Re: [PATCH V2 12/12] block: use standard blktrace API to output cgroup info for debug notes
Date: Thu, 15 Jun 2017 21:56:35 +0800	[thread overview]
Message-ID: <201706152132.M7D9S5LP%fengguang.wu@intel.com> (raw)
In-Reply-To: <8085bf3f6afc5f6f676bebdd9e2700ca7be1fb29.1497455937.git.shli@fb.com>

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Hi Shaohua,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.12-rc5]
[cannot apply to driver-core/driver-core-testing block/for-next next-20170615]
[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/Shaohua-Li/kernfs-implement-i_generation/20170615-211524
config: x86_64-randconfig-x014-201724 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   block/bfq-cgroup.c: In function 'bfq_bic_update_cgroup':
>> block/bfq-cgroup.c:679:2: error: implicit declaration of function 'blkg_path' [-Werror=implicit-function-declaration]
     blkg_path(bfqg_to_blkg(bfqg), bfqg->blkg_path, sizeof(bfqg->blkg_path));
     ^~~~~~~~~
   cc1: some warnings being treated as errors

vim +/blkg_path +679 block/bfq-cgroup.c

8f9bebc3 Paolo Valente 2017-06-05  673  	 * Finally, note that bfqg itself needs to be protected from
8f9bebc3 Paolo Valente 2017-06-05  674  	 * destruction on the blkg_free of the original blkg (which
8f9bebc3 Paolo Valente 2017-06-05  675  	 * invokes bfq_pd_free). We use an additional private
8f9bebc3 Paolo Valente 2017-06-05  676  	 * refcounter for bfqg, to let it disappear only after no
8f9bebc3 Paolo Valente 2017-06-05  677  	 * bfq_queue refers to it any longer.
8f9bebc3 Paolo Valente 2017-06-05  678  	 */
8f9bebc3 Paolo Valente 2017-06-05 @679  	blkg_path(bfqg_to_blkg(bfqg), bfqg->blkg_path, sizeof(bfqg->blkg_path));
ea25da48 Paolo Valente 2017-04-19  680  	bic->blkcg_serial_nr = serial_nr;
ea25da48 Paolo Valente 2017-04-19  681  out:
ea25da48 Paolo Valente 2017-04-19  682  	rcu_read_unlock();

:::::: The code at line 679 was first introduced by commit
:::::: 8f9bebc33dd718283183582fc4a762e178552fb8 block, bfq: access and cache blkg data only when safe

:::::: TO: Paolo Valente <paolo.valente@linaro.org>
:::::: CC: Jens Axboe <axboe@fb.com>

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

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      reply	other threads:[~2017-06-15 13:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-14 16:11 [PATCH V2 00/12]blktrace: output cgroup info Shaohua Li
2017-06-14 16:11 ` [PATCH V2 01/12] kernfs: implement i_generation Shaohua Li
2017-06-14 16:12 ` [PATCH V2 02/12] kernfs: use idr instead of ida to manage inode number Shaohua Li
2017-06-14 16:12 ` [PATCH V2 03/12] kernfs: add an API to get kernfs node from " Shaohua Li
2017-06-14 16:12 ` [PATCH V2 04/12] kernfs: don't set dentry->d_fsdata Shaohua Li
2017-06-14 16:12 ` [PATCH V2 05/12] kernfs: introduce kernfs_node_id Shaohua Li
2017-06-15 20:14   ` kbuild test robot
2017-06-14 16:12 ` [PATCH V2 06/12] kernfs: add exportfs operations Shaohua Li
2017-06-14 16:12 ` [PATCH V2 07/12] cgroup: export fhandle info for a cgroup Shaohua Li
2017-06-14 16:12 ` [PATCH V2 08/12] blktrace: export cgroup info in trace Shaohua Li
2017-06-14 16:12 ` [PATCH V2 09/12] block: always attach cgroup info into bio Shaohua Li
2017-06-14 16:12 ` [PATCH V2 10/12] block: call __bio_free in bio_endio Shaohua Li
2017-06-14 16:12 ` [PATCH V2 11/12] blktrace: add an option to allow displying cgroup path Shaohua Li
2017-06-14 16:12 ` [PATCH V2 12/12] block: use standard blktrace API to output cgroup info for debug notes Shaohua Li
2017-06-15 13:56   ` kbuild test robot [this message]

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