Re: [PATCH v2] PCI/AER: Do not clear AER bits if we don't own AER

From: kbuild test robot <lkp@intel.com>
To: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Cc: kbuild-all@01.org, linux-pci@vger.kernel.org,
	bhelgaas@google.com, keith.busch@intel.com,
	alex_gagniuc@dellteam.com, austin_bolen@dell.com,
	shyam_iyer@dell.com, Alexandru Gagniuc <mr.nuke.me@gmail.com>,
	Frederick Lawler <fred@fredlawl.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Oza Pawandeep <poza@codeaurora.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] PCI/AER: Do not clear AER bits if we don't own AER
Date: Wed, 25 Jul 2018 09:03:41 +0800	[thread overview]
Message-ID: <201807250856.yJztU80k%fengguang.wu@intel.com> (raw)
In-Reply-To: <20180723165251.11424-1-mr.nuke.me@gmail.com>

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Hi Alexandru,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on pci/next]
[also build test ERROR on v4.18-rc6 next-20180724]
[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/Alexandru-Gagniuc/PCI-AER-Do-not-clear-AER-bits-if-we-don-t-own-AER/20180724-235320
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: x86_64-randconfig-s1-07250001 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/pci/pcie/aer.c: In function 'pci_enable_pcie_error_reporting':
>> drivers/pci/pcie/aer.c:371:7: error: implicit declaration of function 'pcie_aer_is_kernel_first' [-Werror=implicit-function-declaration]
     if (!pcie_aer_is_kernel_first(dev))
          ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/pcie_aer_is_kernel_first +371 drivers/pci/pcie/aer.c

   365	
   366	#define	PCI_EXP_AER_FLAGS	(PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE | \
   367					 PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE)
   368	
   369	int pci_enable_pcie_error_reporting(struct pci_dev *dev)
   370	{
 > 371		if (!pcie_aer_is_kernel_first(dev))
   372			return -EIO;
   373	
   374		return pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_AER_FLAGS);
   375	}
   376	EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
   377	

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