Re: [PATCH 1/4] PCI/AER: factor out error reporting from AER

From: kbuild test robot
Date: Thu Dec 28 2017 - 11:07:44 EST


Hi Oza,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.15-rc5]
[cannot apply to pci/next pm/linux-next 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/Oza-Pawandeep/Address-error-and-recovery-for-AER-and-DPC/20171228-222058
config: i386-randconfig-i0-201752 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/pci/pcie/pcie-err.o: In function `pci_reset_link':
>> drivers/pci/pcie/pcie-err.c:194: undefined reference to `pci_find_aer_service'

vim +194 drivers/pci/pcie/pcie-err.c

178
179 pci_ers_result_t pci_reset_link(struct pci_dev *dev)
180 {
181 struct pci_dev *udev;
182 pci_ers_result_t status;
183 struct pcie_port_service_driver *driver;
184
185 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
186 /* Reset this port for all subordinates */
187 udev = dev;
188 } else {
189 /* Reset the upstream component (likely downstream port) */
190 udev = dev->bus->self;
191 }
192
193 /* Use the aer driver of the component firstly */
> 194 driver = pci_find_aer_service(udev);
195
196 if (driver && driver->reset_link) {
197 status = driver->reset_link(udev);
198 } else if (udev->has_secondary_link) {
199 status = pci_default_reset_link(udev);
200 } else {
201 dev_printk(KERN_DEBUG, &dev->dev,
202 "no link-reset support at upstream device %s\n",
203 pci_name(udev));
204 return PCI_ERS_RESULT_DISCONNECT;
205 }
206
207 if (status != PCI_ERS_RESULT_RECOVERED) {
208 dev_printk(KERN_DEBUG, &dev->dev,
209 "link reset at upstream device %s failed\n",
210 pci_name(udev));
211 return PCI_ERS_RESULT_DISCONNECT;
212 }
213
214 return status;
215 }
216

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