linux-kernel - Re: [GIT PULL] PCI changes for v4.7

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Date:	Mon, 23 May 2016 04:29:41 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Bjorn Helgaas <helgaas@...nel.org>
Cc:	kbuild-all@...org, Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Joerg Roedel <jroedel@...e.de>,
	Jacek Lawrynowicz <jacek.lawrynowicz@...el.com>
Subject: Re: [GIT PULL] PCI changes for v4.7

Hi,

[auto build test ERROR on linus/master]

url:    https://github.com/0day-ci/linux/commits/Bjorn-Helgaas/PCI-changes-for-v4-7/20160519-235212
config: x86_64-rhel (attached as .config)
compiler: gcc-4.9 (Debian 4.9.3-14) 4.9.3
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the linux-review/Bjorn-Helgaas/PCI-changes-for-v4-7/20160519-235212 HEAD 1e5c1867a5d64bd92babd851c5656d0841652f23 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   drivers/iommu/amd_iommu.c: In function 'get_alias':
>> drivers/iommu/amd_iommu.c:266:3: error: implicit declaration of function 'pci_add_dma_alias' [-Werror=implicit-function-declaration]
      pci_add_dma_alias(pdev, ivrs_alias & 0xff);
      ^
   cc1: some warnings being treated as errors

vim +/pci_add_dma_alias +266 drivers/iommu/amd_iommu.c

   260		/*
   261		 * If we don't have a PCI DMA alias and the IVRS alias is on the same
   262		 * bus, then the IVRS table may know about a quirk that we don't.
   263		 */
   264		if (pci_alias == devid &&
   265		    PCI_BUS_NUM(ivrs_alias) == pdev->bus->number) {
 > 266			pci_add_dma_alias(pdev, ivrs_alias & 0xff);
   267			pr_info("AMD-Vi: Added PCI DMA alias %02x.%d for %s\n",
   268				PCI_SLOT(ivrs_alias), PCI_FUNC(ivrs_alias),
   269				dev_name(dev));

---
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