From: Stephen Hemminger <step...@networkplumber.org>
Date: Wed, 29 Aug 2018 09:24:51 -0700
> + spin_lock_irqsave(&hbus->device_list_lock, flags);
> + list_for_each_entry(hpdev, &hbus->children, list_entry) {
> + if (hpdev->pci_slot)
> + continue;
> +
> + slot_nr = PCI_SLOT(wslot_to_devfn(hpdev->desc.win_slot.slot));
> + snprintf(name, SLOT_NAME_SIZE, "%u", hpdev->desc.ser);
> + hpdev->pci_slot = pci_create_slot(hbus->pci_bus, slot_nr,
> + name, NULL);
pci_create_slot() takes a mutex, therefore you can't hold a spinlock or
disable interrupts here.
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