PCI: Remove aer_do_secondary_bus_reset()

One PCI bus reset function to rule them all.

Signed-off-by: Alex Williamson <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>

drivers/pci/pcie/aer/aerdrv.c

···
 	reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK;
 	pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32);
 
-	aer_do_secondary_bus_reset(dev);
+	pci_reset_bridge_secondary_bus(dev);
 	dev_printk(KERN_DEBUG, &dev->dev, "Root Port link has been reset\n");
 
 	/* Clear Root Error Status */

drivers/pci/pcie/aer/aerdrv.h

···
 }
 
 extern struct bus_type pcie_port_bus_type;
-void aer_do_secondary_bus_reset(struct pci_dev *dev);
 int aer_init(struct pcie_device *dev);
 void aer_isr(struct work_struct *work);
 void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);

drivers/pci/pcie/aer/aerdrv_core.c

···
 }
 
 /**
- * aer_do_secondary_bus_reset - perform secondary bus reset
- * @dev: pointer to bridge's pci_dev data structure
- *
- * Invoked when performing link reset at Root Port or Downstream Port.
- */
-void aer_do_secondary_bus_reset(struct pci_dev *dev)
-{
-	u16 p2p_ctrl;
-
-	/* Assert Secondary Bus Reset */
-	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl);
-	p2p_ctrl |= PCI_BRIDGE_CTL_BUS_RESET;
-	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
-
-	/*
-	 * we should send hot reset message for 2ms to allow it time to
-	 * propagate to all downstream ports
-	 */
-	msleep(2);
-
-	/* De-assert Secondary Bus Reset */
-	p2p_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
-	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
-
-	/*
-	 * System software must wait for at least 100ms from the end
-	 * of a reset of one or more device before it is permitted
-	 * to issue Configuration Requests to those devices.
-	 */
-	msleep(200);
-}
-
-/**
  * default_reset_link - default reset function
  * @dev: pointer to pci_dev data structure
  *
···
  */
 static pci_ers_result_t default_reset_link(struct pci_dev *dev)
 {
-	aer_do_secondary_bus_reset(dev);
+	pci_reset_bridge_secondary_bus(dev);
 	dev_printk(KERN_DEBUG, &dev->dev, "downstream link has been reset\n");
 	return PCI_ERS_RESULT_RECOVERED;
 }