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Merge branch 'pci/reset'

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- Wait for each level of downstream bus, not just the first, to become
  accessible before restoring devices on that bus (Ilpo Järvinen)

* pci/reset:
  PCI: Wait for Link before restoring Downstream Buses
This commit is contained in:
Bjorn Helgaas
2024-09-19 14:25:27 -05:00
parent d774674f34 3e40aa29d4
commit f2a3ce1597
1 changed files with 6 additions and 2 deletions
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drivers/pci/pci.c
+6 -2
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@@ -5694,8 +5694,10 @@ static void pci_bus_restore_locked(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
pci_dev_restore(dev);
if (dev->subordinate)
if (dev->subordinate) {
pci_bridge_wait_for_secondary_bus(dev, "bus reset");
pci_bus_restore_locked(dev->subordinate);
}
}
}
@@ -5729,8 +5731,10 @@ static void pci_slot_restore_locked(struct pci_slot *slot)
if (!dev->slot || dev->slot != slot)
continue;
pci_dev_restore(dev);
if (dev->subordinate)
if (dev->subordinate) {
pci_bridge_wait_for_secondary_bus(dev, "slot reset");
pci_bus_restore_locked(dev->subordinate);
}
}
}