On Wed, Jan 30, 2013 at 9:10 AM, Jiang Liu <liuj97@xxxxxxxxx> wrote:
> From: Jiang Liu <jiang.liu@xxxxxxxxxx>
>
> With commit 4f535093cf8f6da8c "PCI: Put pci_dev in device tree as
> early as possible", companion ACPI devices should be created before
> creating correspoding PCI devices, otherwise it will break the ACPI
> PCI binding logic.
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
> ---
> Hi Bjorn,
> This patch set applies to your pci/yinghai-root-bus branch.
> There are still other potential bugs in the acpiphp driver under
> investigation. So I will send out these two first to catch up with
> the 3.9 merging window.
> Thanks!
> Gerry
I assume this fixes some sort of user-visible issue with acpiphp.
What failure does the user see?
> ---
> drivers/pci/hotplug/acpiphp_glue.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
> index bd784ff..acb7af2 100644
> --- a/drivers/pci/hotplug/acpiphp_glue.c
> +++ b/drivers/pci/hotplug/acpiphp_glue.c
> @@ -839,6 +839,9 @@ static int __ref enable_device(struct acpiphp_slot *slot)
> if (slot->flags & SLOT_ENABLED)
> goto err_exit;
>
> + list_for_each_entry(func, &slot->funcs, sibling)
> + acpiphp_bus_add(func);
> +
> num = pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
> if (num == 0) {
> /* Maybe only part of funcs are added. */
> @@ -862,9 +865,6 @@ static int __ref enable_device(struct acpiphp_slot *slot)
> }
> }
>
> - list_for_each_entry(func, &slot->funcs, sibling)
> - acpiphp_bus_add(func);
> -
> pci_bus_assign_resources(bus);
> acpiphp_sanitize_bus(bus);
> acpiphp_set_hpp_values(bus);
> --
> 1.7.9.5
>
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