On Friday 16 January 2015 09:44:08 Yijing Wang wrote:
quoted hunk ↗ jump to hunk
@@ -2066,11 +2064,11 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, u32 db,
{
struct pci_host_bridge *host;
- host = pci_create_host_bridge(parent, db, resources);
+ host = pci_create_host_bridge(parent, db, resources, sysdata);
if (!host)
return NULL;
- return __pci_scan_root_bus(host, ops, sysdata);
+ return __pci_scan_root_bus(host, ops);
}
EXPORT_SYMBOL(pci_scan_root_bus);
How about keeping the sysdata out of the pci_create_host_bridge interface, and
refactoring it so that the call sequence becomes
host = pci_create_host_bridge(parent, db, resources);
host->sysdata = sysdata;
__pci_scan_root_bus(host, ops);
This way, we can make sysdata completely option. I assume that more of the
fields we have in sysdata today can get moved into pci_host_bridge
over time, so a host bridge driver can just assign those members individually
between pci_create_host_bridge and __pci_scan_root_bus.
Arnd