From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: Re: [RFC PATCH v5 4/4] dm kcopyd: add simple copy offload support
Date: Sat, 20 Feb 2021 13:52:53 +0800 [thread overview]
Message-ID: <202102201309.E8VcBvvn-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
In-Reply-To: <20210219124517.79359-5-selvakuma.s1@samsung.com>
References: <20210219124517.79359-5-selvakuma.s1@samsung.com>
TO: SelvaKumar S <selvakuma.s1@samsung.com>
Hi SelvaKumar,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on linus/master]
[also build test WARNING on v5.11]
[cannot apply to block/for-next dm/for-next linux-nvme/for-next next-20210219]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/SelvaKumar-S/block-make-bio_map_kern-non-static/20210220-100547
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f40ddce88593482919761f74910f42f4b84c004b
:::::: branch date: 4 hours ago
:::::: commit date: 4 hours ago
config: i386-randconfig-m021-20210219 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/md/dm-kcopyd.c:613 run_copy_job() error: uninitialized symbol 'r'.
vim +/r +613 drivers/md/dm-kcopyd.c
^1da177e4c3f41 drivers/md/kcopyd.c Linus Torvalds 2005-04-16 585
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 586 static int run_copy_job(struct kcopyd_job *job)
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 587 {
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 588 int r, i, count = 0;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 589 unsigned long flags = 0;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 590 struct range_entry srange;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 591
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 592 flags |= BLKDEV_COPY_NOEMULATION;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 593 for (i = 0; i < job->num_dests; i++) {
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 594 srange.src = job->source.sector;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 595 srange.len = job->source.count;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 596
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 597 r = blkdev_issue_copy(job->source.bdev, 1, &srange,
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 598 job->dests[i].bdev, job->dests[i].sector, GFP_KERNEL, flags);
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 599 if (r)
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 600 break;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 601
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 602 job->dests[i].count = 0;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 603 count++;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 604 }
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 605
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 606 if (count == job->num_dests) {
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 607 push(&job->kc->complete_jobs, job);
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 608 } else {
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 609 push(&job->kc->pages_jobs, job);
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 610 r = 0;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 611 }
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 612
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 @613 return r;
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 614 }
f79939bb63c402 drivers/md/dm-kcopyd.c SelvaKumar S 2021-02-19 615
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2021-02-20 5:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-20 5:52 kernel test robot [this message]
[not found] <CGME20210219124611epcas5p1c775b63b537e75da161556e375fcf05e@epcas5p1.samsung.com>
2021-02-19 12:45 ` [dm-devel] [RFC PATCH v5 0/4] add simple copy support SelvaKumar S
2021-02-19 12:45 ` [RFC PATCH v5 4/4] dm kcopyd: add simple copy offload support SelvaKumar S
2021-02-19 12:45 ` SelvaKumar S
2021-02-22 5:28 ` Dan Carpenter
2021-02-22 5:28 ` Dan Carpenter
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