[pci:pci/host-designware 37/43] drivers/misc/pci_endpoint_test.c:420:8: error: implicit declaration of function 'pci_alloc_irq_vectors'

[kbuild test robot <fengguang.wu@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/host-designware
head:   f6a1972e20ab2f40f4a8a1000bf34f4df3145c01
commit: 450afc42599ba3544e23fb45e86a995d839e2e1c [37/43] misc: Add host side PCI driver for PCI test function device
config: blackfin-allmodconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 450afc42599ba3544e23fb45e86a995d839e2e1c
        # save the attached .config to linux build tree
        make.cross ARCH=blackfin 

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

   drivers/misc/pci_endpoint_test.c: In function 'pci_endpoint_test_probe':
>> drivers/misc/pci_endpoint_test.c:420:8: error: implicit declaration of function 'pci_alloc_irq_vectors' [-Werror=implicit-function-declaration]
     irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);
           ^~~~~~~~~~~~~~~~~~~~~
>> drivers/misc/pci_endpoint_test.c:420:43: error: 'PCI_IRQ_MSI' undeclared (first use in this function)
     irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);
                                              ^~~~~~~~~~~
   drivers/misc/pci_endpoint_test.c:420:43: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/misc/pci_endpoint_test.c:487:2: error: implicit declaration of function 'pci_disable_msi' [-Werror=implicit-function-declaration]
     pci_disable_msi(pdev);
     ^~~~~~~~~~~~~~~
   drivers/misc/pci_endpoint_test.c: At top level:
>> drivers/misc/pci_endpoint_test.c:530:1: warning: data definition has no type or storage class
    module_pci_driver(pci_endpoint_test_driver);
    ^~~~~~~~~~~~~~~~~
>> drivers/misc/pci_endpoint_test.c:530:1: error: type defaults to 'int' in declaration of 'module_pci_driver' [-Werror=implicit-int]
>> drivers/misc/pci_endpoint_test.c:530:1: warning: parameter names (without types) in function declaration
   drivers/misc/pci_endpoint_test.c:524:26: warning: 'pci_endpoint_test_driver' defined but not used [-Wunused-variable]
    static struct pci_driver pci_endpoint_test_driver = {
                             ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/pci_alloc_irq_vectors +420 drivers/misc/pci_endpoint_test.c

   414			dev_err(dev, "Cannot obtain PCI resources\n");
   415			goto err_disable_pdev;
   416		}
   417	
   418		pci_set_master(pdev);
   419	
 > 420		irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);
   421		if (irq < 0)
   422			dev_err(dev, "failed to get MSI interrupts\n");
   423	
   424		err = devm_request_irq(dev, pdev->irq, pci_endpoint_test_irqhandler,
   425				       IRQF_SHARED, DRV_MODULE_NAME, test);
   426		if (err) {
   427			dev_err(dev, "failed to request IRQ %d\n", pdev->irq);
   428			goto err_disable_msi;
   429		}
   430	
   431		for (i = 1; i < irq; i++) {
   432			err = devm_request_irq(dev, pdev->irq + i,
   433					       pci_endpoint_test_irqhandler,
   434					       IRQF_SHARED, DRV_MODULE_NAME, test);
   435			if (err)
   436				dev_err(dev, "failed to request IRQ %d for MSI %d\n",
   437					pdev->irq + i, i + 1);
   438		}
   439	
   440		for (bar = BAR_0; bar <= BAR_5; bar++) {
   441			base = pci_ioremap_bar(pdev, bar);
   442			if (!base) {
   443				dev_err(dev, "failed to read BAR%d\n", bar);
   444				WARN_ON(bar == BAR_0);
   445			}
   446			test->bar[bar] = base;
   447		}
   448	
   449		test->base = test->bar[0];
   450		if (!test->base) {
   451			dev_err(dev, "Cannot perform PCI test without BAR0\n");
   452			goto err_iounmap;
   453		}
   454	
   455		pci_set_drvdata(pdev, test);
   456	
   457		id = ida_simple_get(&pci_endpoint_test_ida, 0, 0, GFP_KERNEL);
   458		if (id < 0) {
   459			dev_err(dev, "unable to get id\n");
   460			goto err_iounmap;
   461		}
   462	
   463		snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id);
   464		misc_device = &test->miscdev;
   465		misc_device->minor = MISC_DYNAMIC_MINOR;
   466		misc_device->name = name;
   467		misc_device->fops = &pci_endpoint_test_fops,
   468	
   469		err = misc_register(misc_device);
   470		if (err) {
   471			dev_err(dev, "failed to register device\n");
   472			goto err_ida_remove;
   473		}
   474	
   475		return 0;
   476	
   477	err_ida_remove:
   478		ida_simple_remove(&pci_endpoint_test_ida, id);
   479	
   480	err_iounmap:
   481		for (bar = BAR_0; bar <= BAR_5; bar++) {
   482			if (test->bar[bar])
   483				pci_iounmap(pdev, test->bar[bar]);
   484		}
   485	
   486	err_disable_msi:
 > 487		pci_disable_msi(pdev);
   488		pci_release_regions(pdev);
   489	
   490	err_disable_pdev:
   491		pci_disable_device(pdev);
   492	
   493		return err;
   494	}
   495	
   496	static void pci_endpoint_test_remove(struct pci_dev *pdev)
   497	{
   498		int id;
   499		enum pci_barno bar;
   500		struct pci_endpoint_test *test = pci_get_drvdata(pdev);
   501		struct miscdevice *misc_device = &test->miscdev;
   502	
   503		if (sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) != 1)
   504			return;
   505	
   506		misc_deregister(&test->miscdev);
   507		ida_simple_remove(&pci_endpoint_test_ida, id);
   508		for (bar = BAR_0; bar <= BAR_5; bar++) {
   509			if (test->bar[bar])
   510				pci_iounmap(pdev, test->bar[bar]);
   511		}
   512		pci_disable_msi(pdev);
   513		pci_release_regions(pdev);
   514		pci_disable_device(pdev);
   515	}
   516	
   517	static const struct pci_device_id pci_endpoint_test_tbl[] = {
   518		{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x) },
   519		{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA72x) },
   520		{ }
   521	};
   522	MODULE_DEVICE_TABLE(pci, pci_endpoint_test_tbl);
   523	
   524	static struct pci_driver pci_endpoint_test_driver = {
   525		.name		= DRV_MODULE_NAME,
   526		.id_table	= pci_endpoint_test_tbl,
   527		.probe		= pci_endpoint_test_probe,
   528		.remove		= pci_endpoint_test_remove,
   529	};
 > 530	module_pci_driver(pci_endpoint_test_driver);
   531	
   532	MODULE_DESCRIPTION("PCI ENDPOINT TEST HOST DRIVER");
   533	MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");

---
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https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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