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PCI/AER: Log which device prevents error recovery

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PCI error recovery will fail if any device under the Root Port doesn't have
an error_detected callback.  Currently only the failure result is printed,
which is not enough to identify the driver that lacks the callback.

Log a message to identify the device with no error_detected callback.

[bhelgaas: tweak log message]
Link: https://lore.kernel.org/r/1576237474-32021-1-git-send-email-yangyicong@hisilicon.com
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yicong Yang 2019-12-13 19:44:34 +08:00 committed by Bjorn Helgaas
parent e42617b825
commit 01daacfb90
1 changed files with 4 additions and 2 deletions
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6
drivers/pci/pcie/err.c
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@ -61,10 +61,12 @@ static int report_error_detected(struct pci_dev *dev,
* error callbacks of "any" device in the subtree, and will
* exit in the disconnected error state.
*/
if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE)
if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
vote = PCI_ERS_RESULT_NO_AER_DRIVER;
else
pci_info(dev, "AER: Can't recover (no error_detected callback)\n");
} else {
vote = PCI_ERS_RESULT_NONE;
}
} else {
err_handler = dev->driver->err_handler;
vote = err_handler->error_detected(dev, state);