hi ,
I was confused with acpiphp_sanitize_bus() function in acpiphp module, first i think list_for_each_entry operation is not safe because pci_remove_bus_device(dev) delete device out of the device list;second,when i hot-add PLX8696(have one upstream port and several downstream ports, and the downstream ports support hotplug pcie devices), acpiphp_sanitize_bus can only check the pci devices under the first bus(the bus between hp-port in system and upstream-port), because the function is not recursive.Can anyone help me? thank you very much!
static void acpiphp_sanitize_bus(struct pci_bus *bus)
{
struct pci_dev *dev;
int i;
unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM;
list_for_each_entry(dev, &bus->devices, bus_list) {
for (i=0; i<PCI_BRIDGE_RESOURCES; i++) {
struct resource *res = &dev->resource[i];
if ((res->flags & type_mask) && !res->start &&
res->end) {
/* Could not assign a required resources
* for this device, remove it */
pci_remove_bus_device(dev);
break;
}
}
}
}
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
