diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/setup-bus.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 12fe926e32b4..742055908656 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1842,7 +1842,7 @@ static void adjust_bridge_window(struct pci_dev *bridge, struct resource *res, struct list_head *add_list, resource_size_t new_size) { - struct pci_dev_resource *dev_res; + resource_size_t add_size; if (res->parent) return; @@ -1850,17 +1850,10 @@ static void adjust_bridge_window(struct pci_dev *bridge, struct resource *res, if (resource_size(res) >= new_size) return; - dev_res = res_to_dev_res(add_list, res); - if (!dev_res) - return; - - /* Is there room to extend the window? */ - if (new_size - resource_size(res) <= dev_res->add_size) - return; - - dev_res->add_size = new_size - resource_size(res); - pci_dbg(bridge, "bridge window %pR extended by %pa\n", res, - &dev_res->add_size); + add_size = new_size - resource_size(res); + pci_dbg(bridge, "bridge window %pR extended by %pa\n", res, &add_size); + res->end = res->start + new_size - 1; + remove_from_list(add_list, res); } static void pci_bus_distribute_available_resources(struct pci_bus *bus, @@ -1896,10 +1889,8 @@ static void pci_bus_distribute_available_resources(struct pci_bus *bus, mmio_pref.end + 1); /* - * Update additional resource list (add_list) to fill all the - * extra resource space available for this port except the space - * calculated in __pci_bus_size_bridges() which covers all the - * devices currently connected to the port and below. + * Now that we have adjusted for alignment, update the bridge window + * resources to fill as much remaining resource space as possible. */ adjust_bridge_window(bridge, io_res, add_list, resource_size(&io)); adjust_bridge_window(bridge, mmio_res, add_list, resource_size(&mmio)); |