PCI/ACPI: Replace open coded variant of resource_union()

Since we have resource_union() helper, let's utilize it here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index c12b5fb..0bf072c 100644 (file)
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -722,9 +722,7 @@ static void acpi_pci_root_validate_resources(struct device *dev,
                         * our resources no longer match the ACPI _CRS, but
                         * the kernel resource tree doesn't allow overlaps.
                         */
-                       if (resource_overlaps(res1, res2)) {
-                               res2->start = min(res1->start, res2->start);
-                               res2->end = max(res1->end, res2->end);
+                       if (resource_union(res1, res2, res2)) {
                                dev_info(dev, "host bridge window expanded to %pR; %pR ignored\n",
                                         res2, res1);
                                free = true;