[PATCH 08/10] PCI: Add dev_is_pci_host_bridge() helper

[Yinghai Lu <yinghai@kernel.org>]

Need to use it later for one function that is shared with pci device.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
 include/linux/pci.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 14703c5..7ee1028 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -739,6 +739,7 @@ void pci_stop_root_bus(struct pci_bus *bus);
 void pci_remove_root_bus(struct pci_bus *bus);
 void pci_setup_cardbus(struct pci_bus *bus);
 extern void pci_sort_breadthfirst(void);
+#define dev_is_pci_host_bridge(d) ((d)->bus == &pci_host_bridge_bus_type)
 #define dev_is_pci(d) ((d)->bus == &pci_bus_type)
 #define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false))
 #define dev_num_vf(d) ((dev_is_pci(d) ? pci_num_vf(to_pci_dev(d)) : 0))
-- 
1.7.7