We are handling ERR_FATAL by resetting the Link in software,skipping the
driver pci_error_handlers callbacks, removing the devices from the PCI
subsystem, and re-enumerating, because of, no need to handle
pci_channel_io_frozen case anymore.
Besides the walk on the bus is happening on subordinates, inside
broadcast_error_message(), which means that pcie_portdrv_slot_reset()
is never called for RP, and now since the all the devices are removed under
this downstream link, we can safely get rid of ERR_FATAL handling code
in pcie_portdrv_slot_reset().
Signed-off-by: Oza Pawandeep <poza@xxxxxxxxxxxxxx>
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 973f1b8..b970a6d 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -42,17 +42,6 @@ __setup("pcie_ports=", pcie_port_setup);
/* global data */
-static int pcie_portdrv_restore_config(struct pci_dev *dev)
-{
- int retval;
-
- retval = pci_enable_device(dev);
- if (retval)
- return retval;
- pci_set_master(dev);
- return 0;
-}
-
#ifdef CONFIG_PM
static int pcie_port_runtime_suspend(struct device *dev)
{
@@ -163,13 +152,6 @@ static pci_ers_result_t pcie_portdrv_mmio_enabled(struct pci_dev *dev)
static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
{
/* If fatal, restore cfg space for possible link reset at upstream */
- if (dev->error_state == pci_channel_io_frozen) {
- dev->state_saved = true;
- pci_restore_state(dev);
- pcie_portdrv_restore_config(dev);
- pci_enable_pcie_error_reporting(dev);
- }
-
return PCI_ERS_RESULT_RECOVERED;
}
--
2.7.4
