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PCI: add busn_res in struct pci_bus 

This adds a busn_res resource in struct pci_bus.  This will replace the
secondary/subordinate members and will be used to build a bus number
resource tree to help with bus number allocation.

[bhelgaas: changelog]
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yinghai Lu 2012-05-17 18:51:11 -07:00 committed by Bjorn Helgaas
parent cfaf025112
commit 92f0243093
1 changed files with 1 additions and 0 deletions
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include/linux/pci.h
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@ -419,6 +419,7 @@ struct pci_bus {
struct list_head slots; /* list of slots on this bus */ struct list_head slots; /* list of slots on this bus */
struct resource *resource[PCI_BRIDGE_RESOURCE_NUM]; struct resource *resource[PCI_BRIDGE_RESOURCE_NUM];
struct list_head resources; /* address space routed to this bus */ struct list_head resources; /* address space routed to this bus */
struct resource busn_res; /* bus numbers routed to this bus */
struct pci_ops *ops; /* configuration access functions */ struct pci_ops *ops; /* configuration access functions */
void *sysdata; /* hook for sys-specific extension */ void *sysdata; /* hook for sys-specific extension */