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[v14,2/9] PCI: Add pcibios_bus_add_device() weak function

Message ID 1455084177-15525-3-git-send-email-gwshan@linux.vnet.ibm.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Gavin Shan Feb. 10, 2016, 6:02 a.m. UTC 
From: Wei Yang <weiyang@linux.vnet.ibm.com>

This adds weak function pcibios_bus_add_device() for arch dependent
code could do proper setup. For example, powerpc could setup EEH
related resources for SRIOV VFs.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/bus.c   | 3 +++
 include/linux/pci.h | 1 +
 2 files changed, 4 insertions(+)
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Patch

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 89b3bef..6469ff6 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -271,6 +271,8 @@  bool pci_bus_clip_resource(struct pci_dev *dev, int idx)
 
 void __weak pcibios_resource_survey_bus(struct pci_bus *bus) { }
 
+void __weak pcibios_bus_add_device(struct pci_dev *pdev) { }
+
 /**
  * pci_bus_add_device - start driver for a single device
  * @dev: device to add
@@ -285,6 +287,7 @@  void pci_bus_add_device(struct pci_dev *dev)
 	 * Can not put in pci_device_add yet because resources
 	 * are not assigned yet for some devices.
 	 */
+	pcibios_bus_add_device(dev);
 	pci_fixup_device(pci_fixup_final, dev);
 	pci_create_sysfs_dev_files(dev);
 	pci_proc_attach_device(dev);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 3db5e30..bc435d62 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -770,6 +770,7 @@  extern struct list_head pci_root_buses;	/* list of all known PCI buses */
 int no_pci_devices(void);
 
 void pcibios_resource_survey_bus(struct pci_bus *bus);
+void pcibios_bus_add_device(struct pci_dev *pdev);
 void pcibios_add_bus(struct pci_bus *bus);
 void pcibios_remove_bus(struct pci_bus *bus);
 void pcibios_fixup_bus(struct pci_bus *);