Messages in this thread | | | Date | Mon, 19 Jan 2015 11:17:02 +0800 | From | Yijing Wang <> | Subject | Re: [PATCH 18/28] PCI/sparc: Use pci_scan_root_bridge() for simplicity |
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On 2015/1/16 18:01, Arnd Bergmann wrote: > On Friday 16 January 2015 09:44:16 Yijing Wang wrote: >> +static void pci_host_bridge_probe_mode( >> + struct pci_host_bridge *host) >> +{ >> + host->of_scan = true; >> +} >> > > I probably missed something here, but where does host->of_scan > get used? >
It is used in __pci_scan_root_bus() to detect whether of scan bus is needed in patch 11.
@@ -2051,10 +2053,17 @@ static struct pci_bus *__pci_scan_root_bus( pci_bus_insert_busn_res(b, host->busnum, 255); }
- max = pci_scan_child_bus(b); + if (host->ops && host->ops->phb_probe_mode) + host->ops->phb_probe_mode(host);
- if (!found) - pci_bus_update_busn_res_end(b, max); + if (host->of_scan) { + if (host->ops &&host->ops->phb_of_scan_bus) + host->ops->phb_of_scan_bus(host); + } else { + max = pci_scan_child_bus(b); + if (!found) + pci_bus_update_busn_res_end(b, max); + }
return b;
Thanks! Yijing.
> Arnd > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > > . >
-- Thanks! Yijing
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