From: Kuppuswamy Sathyanarayanan <[email protected]>
PCI_ERS_RESULT_NEED_RESET error status implies the device is requesting a slot reset and a notification about slot reset completion via ->slot_reset() callback. But in non-fatal errors case, if report_error_detected() or report_mmio_enabled() functions requests PCI_ERS_RESULT_NEED_RESET then current pcie_do_recovery() implementation does not do the requested explicit slot reset, instead just calls the ->slot_reset() callback on all affected devices. Notifying about the slot reset completion without resetting it incorrect. So add this support. Signed-off-by: Kuppuswamy Sathyanarayanan <[email protected]> --- drivers/pci/pcie/err.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index 5fe8561c7185..94d1c2ff7b40 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -206,6 +206,9 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev, * functions to reset slot before calling * drivers' slot_reset callbacks? */ + if (state != pci_channel_io_frozen) + pci_reset_bus(dev); + status = PCI_ERS_RESULT_RECOVERED; pci_dbg(dev, "broadcast slot_reset message\n"); pci_walk_bus(bus, report_slot_reset, &status); -- 2.17.1
