Messages in this thread | | | Date | Thu, 4 Oct 2012 11:36:15 -0700 | Subject | Re: [PATCH 0/4] ACPI: kill acpi_pci_root_start | From | Yinghai Lu <> |
| |
On Thu, Oct 4, 2012 at 10:47 AM, Bjorn Helgaas <bhelgaas@google.com> wrote: > On Wed, Oct 03, 2012 at 04:00:10PM -0700, Yinghai Lu wrote: > This is a fundamental difference: at boot-time, all the ACPI devices below the > host bridge already exist before the pci_root.c driver claims the bridge, > while at hot-add time, pci_root.c claims the bridge *before* those ACPI > devices exist. > > I think this is wrong. The hot-plug case (where the driver is already > loaded and binds to the device as soon as it's discovered, before the > ACPI hierarchy below it is enumerated) seems like the obviously correct > order. I think we should change the boot-time order to match that, i.e., > we should register pci_root.c *before* enumerating ACPI devices.
in booting path, all device get probed at first, and then register driver... do you want to register all pci driver before probing pci devices?
Yinghai
| |