PCI: Remove local variable usage in pci_bus_distribute_available_resources()

In pci_bus_distribute_available_resources(), use resource_size() rather
than the local available_io, etc.  No functional change intended; this just
makes the preceding patch smaller.

[bhelgaas: extracted from https://lore.kernel.org/r/PSXP216MB0438587C47CBEDF365B1EA27803C0@PSXP216MB0438.KORP216.PROD.OUTLOOK.COM]
Signed-off-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 7fa7ad1..336c96c 100644 (file)
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1886,14 +1886,10 @@ static void pci_bus_distribute_available_resources(struct pci_bus *bus,
         * calculated in __pci_bus_size_bridges() which covers all the
         * devices currently connected to the port and below.
         */
-       available_io = resource_size(&io);
-       available_mmio = resource_size(&mmio);
-       available_mmio_pref = resource_size(&mmio_pref);
-
-       extend_bridge_window(bridge, io_res, add_list, available_io);
-       extend_bridge_window(bridge, mmio_res, add_list, available_mmio);
+       extend_bridge_window(bridge, io_res, add_list, resource_size(&io));
+       extend_bridge_window(bridge, mmio_res, add_list, resource_size(&mmio));
        extend_bridge_window(bridge, mmio_pref_res, add_list,
-                            available_mmio_pref);
+                            resource_size(&mmio_pref));
 
        /*
         * Calculate how many hotplug bridges and normal bridges there
@@ -1929,9 +1925,9 @@ static void pci_bus_distribute_available_resources(struct pci_bus *bus,
         * extra space reduced by the minimal required space for the
         * non-hotplug bridges.
         */
-       remaining_io = available_io;
-       remaining_mmio = available_mmio;
-       remaining_mmio_pref = available_mmio_pref;
+       remaining_io = available_io = resource_size(&io);
+       remaining_mmio = available_mmio = resource_size(&mmio);
+       remaining_mmio_pref = available_mmio_pref = resource_size(&mmio_pref);
 
        for_each_pci_bridge(dev, bus) {
                const struct resource *res;