From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
of_pci_parse_bus_range() looks for a DT "bus-range" property. If none
exists, devm_of_pci_get_host_bridge_resources() defaults to the [bus 00-ff]
range supplied by its caller, pci_parse_request_of_pci_ranges().
devm_of_pci_get_host_bridge_resources() is static and has no other callers,
so there's no reason to complicate its interface by passing the default bus
range.
Drop the busno and bus_max parameters and use 0x0 and 0xff directly in
devm_of_pci_get_host_bridge_resources().
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
drivers/pci/of.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 2f579b691f8e..02cba51e4ca4 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -302,8 +302,6 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
* devm_of_pci_get_host_bridge_resources() - Resource-managed parsing of PCI
* host bridge resources from DT
* @dev: host bridge device
- * @busno: bus number associated with the bridge root bus
- * @bus_max: maximum number of buses for this bridge
* @resources: list where the range of resources will be added after DT parsing
* @ib_resources: list where the range of inbound resources (with addresses
* from 'dma-ranges') will be added after DT parsing
@@ -319,7 +317,6 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
* value if it failed.
*/
static int devm_of_pci_get_host_bridge_resources(struct device *dev,
- unsigned char busno, unsigned char bus_max,
struct list_head *resources,
struct list_head *ib_resources,
resource_size_t *io_base)
@@ -343,8 +340,8 @@ static int devm_of_pci_get_host_bridge_resources(struct device *dev,
err = of_pci_parse_bus_range(dev_node, bus_range);
if (err) {
- bus_range->start = busno;
- bus_range->end = bus_max;
+ bus_range->start = 0;
+ bus_range->end = 0xff;
bus_range->flags = IORESOURCE_BUS;
dev_info(dev, " No bus range found for %pOF, using %pR\n",
dev_node, bus_range);
@@ -597,7 +594,7 @@ static int pci_parse_request_of_pci_ranges(struct device *dev,
INIT_LIST_HEAD(&bridge->windows);
INIT_LIST_HEAD(&bridge->dma_ranges);
- err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &bridge->windows,
+ err = devm_of_pci_get_host_bridge_resources(dev, &bridge->windows,
&bridge->dma_ranges, &iobase);
if (err)
return err;
--
2.34.1
