PCI/ERR: Simplify by using pci_upstream_bridge()

Use pci_upstream_bridge() in place of dev->bus->self.  No functional change
intended.

Link: https://lore.kernel.org/r/20201121001036.8560-6-sean.v.kelley@intel.com
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # non-native/no RCEC
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index db149c6..05f61da 100644 (file)
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -159,7 +159,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
         */
        if (!(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
              pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM))
-               dev = dev->bus->self;
+               dev = pci_upstream_bridge(dev);
        bus = dev->subordinate;
 
        pci_dbg(dev, "broadcast error_detected message\n");