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Date:   Sat, 23 Dec 2017 17:55:05 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     kbuild-all@...org, Kishon Vijay Abraham I <kishon@...com>,
        linux-kernel@...r.kernel.org,
        "Rafael J . Wysocki" <rjw@...ysocki.net>, linux-pm@...r.kernel.org,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-renesas-soc@...r.kernel.org,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH v2 2/3] phy: core: Drop unused runtime PM APIs

Hi Ulf,

I love your patch! Yet something to improve:

[auto build test ERROR on phy/next]
[also build test ERROR on v4.15-rc4 next-20171222]
[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/Ulf-Hansson/phy-core-Re-work-runtime-PM-deployment-and-fix-an-issue/20171223-170432
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy.git next
config: i386-randconfig-a0-201751 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers//ata/ahci.c: In function 'ahci_init_one':
>> drivers//ata/ahci.c:1761:2: error: implicit declaration of function 'pm_runtime_put_noidle' [-Werror=implicit-function-declaration]
     pm_runtime_put_noidle(&pdev->dev);
     ^
   drivers//ata/ahci.c: In function 'ahci_remove_one':
>> drivers//ata/ahci.c:1767:2: error: implicit declaration of function 'pm_runtime_get_noresume' [-Werror=implicit-function-declaration]
     pm_runtime_get_noresume(&pdev->dev);
     ^
   cc1: some warnings being treated as errors
--
   drivers//ata/libahci.c: In function 'ahci_rpm_get_port':
>> drivers//ata/libahci.c:239:2: error: implicit declaration of function 'pm_runtime_get_sync' [-Werror=implicit-function-declaration]
     return pm_runtime_get_sync(ap->dev);
     ^
   drivers//ata/libahci.c: In function 'ahci_rpm_put_port':
>> drivers//ata/libahci.c:251:2: error: implicit declaration of function 'pm_runtime_put' [-Werror=implicit-function-declaration]
     pm_runtime_put(ap->dev);
     ^
   cc1: some warnings being treated as errors
--
   drivers//ata/ahci_ceva.c: In function 'ceva_ahci_resume':
>> drivers//ata/ahci_ceva.c:326:2: error: implicit declaration of function 'pm_runtime_disable' [-Werror=implicit-function-declaration]
     pm_runtime_disable(dev);
     ^
>> drivers//ata/ahci_ceva.c:327:2: error: implicit declaration of function 'pm_runtime_set_active' [-Werror=implicit-function-declaration]
     pm_runtime_set_active(dev);
     ^
>> drivers//ata/ahci_ceva.c:328:2: error: implicit declaration of function 'pm_runtime_enable' [-Werror=implicit-function-declaration]
     pm_runtime_enable(dev);
     ^
   cc1: some warnings being treated as errors
--
   drivers//ata/ahci_qoriq.c: In function 'ahci_qoriq_resume':
>> drivers//ata/ahci_qoriq.c:306:2: error: implicit declaration of function 'pm_runtime_disable' [-Werror=implicit-function-declaration]
     pm_runtime_disable(dev);
     ^
>> drivers//ata/ahci_qoriq.c:307:2: error: implicit declaration of function 'pm_runtime_set_active' [-Werror=implicit-function-declaration]
     pm_runtime_set_active(dev);
     ^
>> drivers//ata/ahci_qoriq.c:308:2: error: implicit declaration of function 'pm_runtime_enable' [-Werror=implicit-function-declaration]
     pm_runtime_enable(dev);
     ^
   cc1: some warnings being treated as errors

vim +/pm_runtime_put_noidle +1761 drivers//ata/ahci.c

d243bed32f drivers/ata/ahci.c  Tirumalesh Chalamarla   2016-02-16  1642  
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1643  	/* save initial config */
394d6e535f drivers/ata/ahci.c  Anton Vorontsov         2010-03-03  1644  	ahci_pci_save_initial_config(pdev, hpriv);
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1645  
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1646  	/* prepare host */
453d3131ec drivers/ata/ahci.c  Robert Hancock          2010-01-26  1647  	if (hpriv->cap & HOST_CAP_NCQ) {
453d3131ec drivers/ata/ahci.c  Robert Hancock          2010-01-26  1648  		pi.flags |= ATA_FLAG_NCQ;
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1649  		/*
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1650  		 * Auto-activate optimization is supposed to be
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1651  		 * supported on all AHCI controllers indicating NCQ
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1652  		 * capability, but it seems to be broken on some
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1653  		 * chipsets including NVIDIAs.
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1654  		 */
83f2b9630c drivers/ata/ahci.c  Tejun Heo               2010-03-30  1655  		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
453d3131ec drivers/ata/ahci.c  Robert Hancock          2010-01-26  1656  			pi.flags |= ATA_FLAG_FPDMA_AA;
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1657  
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1658  		/*
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1659  		 * All AHCI controllers should be forward-compatible
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1660  		 * with the new auxiliary field. This code should be
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1661  		 * conditionalized if any buggy AHCI controllers are
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1662  		 * encountered.
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1663  		 */
40fb59e75a drivers/ata/ahci.c  Marc Carino             2013-08-24  1664  		pi.flags |= ATA_FLAG_FPDMA_AUX;
453d3131ec drivers/ata/ahci.c  Robert Hancock          2010-01-26  1665  	}
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1666  
7d50b60b5e drivers/ata/ahci.c  Tejun Heo               2007-09-23  1667  	if (hpriv->cap & HOST_CAP_PMP)
7d50b60b5e drivers/ata/ahci.c  Tejun Heo               2007-09-23  1668  		pi.flags |= ATA_FLAG_PMP;
7d50b60b5e drivers/ata/ahci.c  Tejun Heo               2007-09-23  1669  
0cbb0e774b drivers/ata/ahci.c  Anton Vorontsov         2010-03-03  1670  	ahci_set_em_messages(hpriv, &pi);
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1671  
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1672  	if (ahci_broken_system_poweroff(pdev)) {
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1673  		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1674  		dev_info(&pdev->dev,
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1675  			"quirky BIOS, skipping spindown on poweroff\n");
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1676  	}
1fd684346d drivers/ata/ahci.c  Rafael J. Wysocki       2009-01-19  1677  
9b10ae86d1 drivers/ata/ahci.c  Tejun Heo               2009-05-30  1678  	if (ahci_broken_suspend(pdev)) {
9b10ae86d1 drivers/ata/ahci.c  Tejun Heo               2009-05-30  1679  		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
a44fec1fce drivers/ata/ahci.c  Joe Perches             2011-04-15  1680  		dev_warn(&pdev->dev,
9b10ae86d1 drivers/ata/ahci.c  Tejun Heo               2009-05-30  1681  			 "BIOS update required for suspend/resume\n");
9b10ae86d1 drivers/ata/ahci.c  Tejun Heo               2009-05-30  1682  	}
9b10ae86d1 drivers/ata/ahci.c  Tejun Heo               2009-05-30  1683  
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1684  	if (ahci_broken_online(pdev)) {
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1685  		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1686  		dev_info(&pdev->dev,
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1687  			 "online status unreliable, applying workaround\n");
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1688  	}
5594639aab drivers/ata/ahci.c  Tejun Heo               2009-08-04  1689  
8bfd174312 drivers/ata/ahci.c  Sui Chen                2017-05-09  1690  
8bfd174312 drivers/ata/ahci.c  Sui Chen                2017-05-09  1691  	/* Acer SA5-271 workaround modifies private_data */
8bfd174312 drivers/ata/ahci.c  Sui Chen                2017-05-09  1692  	acer_sa5_271_workaround(hpriv, pdev);
8bfd174312 drivers/ata/ahci.c  Sui Chen                2017-05-09  1693  
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1694  	/* CAP.NP sometimes indicate the index of the last enabled
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1695  	 * port, at other times, that of the last possible port, so
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1696  	 * determining the maximum port number requires looking at
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1697  	 * both CAP.NP and port_map.
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1698  	 */
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1699  	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1700  
837f5f8fb9 drivers/ata/ahci.c  Tejun Heo               2008-02-06  1701  	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1702  	if (!host)
24dc5f33ea drivers/ata/ahci.c  Tejun Heo               2007-01-20  1703  		return -ENOMEM;
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1704  	host->private_data = hpriv;
0b9e2988ab drivers/ata/ahci.c  Christoph Hellwig       2016-09-05  1705  
0b9e2988ab drivers/ata/ahci.c  Christoph Hellwig       2016-09-05  1706  	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
0b9e2988ab drivers/ata/ahci.c  Christoph Hellwig       2016-09-05  1707  		/* legacy intx interrupts */
0b9e2988ab drivers/ata/ahci.c  Christoph Hellwig       2016-09-05  1708  		pci_intx(pdev, 1);
0b9e2988ab drivers/ata/ahci.c  Christoph Hellwig       2016-09-05  1709  	}
0ce57f8af1 drivers/ata/ahci.c  Christoph Hellwig       2016-10-25  1710  	hpriv->irq = pci_irq_vector(pdev, 0);
21bfd1aa95 drivers/ata/ahci.c  Robert Richter          2015-05-31  1711  
f3d7f23f87 drivers/ata/ahci.c  Arjan van de Ven        2009-01-26  1712  	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
886ad09fc8 drivers/ata/ahci.c  Arjan van de Ven        2009-01-09  1713  		host->flags |= ATA_HOST_PARALLEL_SCAN;
f3d7f23f87 drivers/ata/ahci.c  Arjan van de Ven        2009-01-26  1714  	else
d2782d96f3 drivers/ata/ahci.c  Jingoo Han              2013-10-05  1715  		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
886ad09fc8 drivers/ata/ahci.c  Arjan van de Ven        2009-01-09  1716  
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1717  	if (pi.flags & ATA_FLAG_EM)
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1718  		ahci_reset_em(host);
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1719  
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1720  	for (i = 0; i < host->n_ports; i++) {
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1721  		struct ata_port *ap = host->ports[i];
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1722  
318893e142 drivers/ata/ahci.c  Alessandro Rubini       2012-01-06  1723  		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
318893e142 drivers/ata/ahci.c  Alessandro Rubini       2012-01-06  1724  		ata_port_pbar_desc(ap, ahci_pci_bar,
cbcdd87593 drivers/ata/ahci.c  Tejun Heo               2007-08-18  1725  				   0x100 + ap->port_no * 0x80, "port");
cbcdd87593 drivers/ata/ahci.c  Tejun Heo               2007-08-18  1726  
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1727  		/* set enclosure management message type */
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1728  		if (ap->flags & ATA_FLAG_EM)
008dbd61eb drivers/ata/ahci.c  Harry Zhang             2010-04-23  1729  			ap->em_message_type = hpriv->em_msg_type;
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1730  
18f7ba4c2f drivers/ata/ahci.c  Kristen Carlson Accardi 2008-06-03  1731  
dab632e8c4 drivers/ata/ahci.c  Jeff Garzik             2007-05-28  1732  		/* disabled/not-implemented port */
350756f6da drivers/ata/ahci.c  Tejun Heo               2008-04-07  1733  		if (!(hpriv->port_map & (1 << i)))
dab632e8c4 drivers/ata/ahci.c  Jeff Garzik             2007-05-28  1734  			ap->ops = &ata_dummy_port_ops;
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1735  	}
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1736  
edc9305284 drivers/ata/ahci.c  Tejun Heo               2007-10-25  1737  	/* apply workaround for ASUS P5W DH Deluxe mainboard */
edc9305284 drivers/ata/ahci.c  Tejun Heo               2007-10-25  1738  	ahci_p5wdh_workaround(host);
edc9305284 drivers/ata/ahci.c  Tejun Heo               2007-10-25  1739  
f80ae7e45a drivers/ata/ahci.c  Tejun Heo               2009-09-16  1740  	/* apply gtf filter quirk */
f80ae7e45a drivers/ata/ahci.c  Tejun Heo               2009-09-16  1741  	ahci_gtf_filter_workaround(host);
f80ae7e45a drivers/ata/ahci.c  Tejun Heo               2009-09-16  1742  
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1743  	/* initialize adapter */
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1744  	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1745  	if (rc)
24dc5f33ea drivers/ata/ahci.c  Tejun Heo               2007-01-20  1746  		return rc;
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1747  
3303040d8b drivers/ata/ahci.c  Anton Vorontsov         2010-03-03  1748  	rc = ahci_pci_reset_controller(host);
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1749  	if (rc)
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1750  		return rc;
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1751  
781d655083 drivers/ata/ahci.c  Anton Vorontsov         2010-03-03  1752  	ahci_pci_init_controller(host);
439fcaec10 drivers/ata/ahci.c  Anton Vorontsov         2010-03-03  1753  	ahci_pci_print_info(host);
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1754  
4447d35156 drivers/ata/ahci.c  Tejun Heo               2007-04-17  1755  	pci_set_master(pdev);
5ca72c4f7c drivers/ata/ahci.c  Alexander Gordeev       2012-11-19  1756  
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1757  	rc = ahci_host_activate(host, &ahci_sht);
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1758  	if (rc)
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1759  		return rc;
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1760  
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18 @1761  	pm_runtime_put_noidle(&pdev->dev);
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1762  	return 0;
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1763  }
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1764  
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1765  static void ahci_remove_one(struct pci_dev *pdev)
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1766  {
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18 @1767  	pm_runtime_get_noresume(&pdev->dev);
02e53293ea drivers/ata/ahci.c  Mika Westerberg         2016-02-18  1768  	ata_pci_remove_one(pdev);
907f4678c1 drivers/scsi/ahci.c Jeff Garzik             2005-05-12  1769  }
^1da177e4c drivers/scsi/ahci.c Linus Torvalds          2005-04-16  1770  

:::::: The code at line 1761 was first introduced by commit
:::::: 02e53293eafcb19b4fabc8a2e7bbfa11b88d0e6c ahci: Add runtime PM support for the host controller

:::::: TO: Mika Westerberg <mika.westerberg@...ux.intel.com>
:::::: CC: Tejun Heo <tj@...nel.org>

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

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