Hi Yinghai,
Any comments about this patch? I searched the code history and found
you introduced pci_hp_add_bridge() function at commit a8e4b9c10. In your
patchset use pci_hp_add_bridge() for all pci hotplug drivers except acpiphp.
So I use pci_hp_add_bridge() in acpiphp instead of using pci_scan_bridge()
directly. I would appreciate if you can give some suggestions.
Thanks!
Yijing.
On 2013/4/1 17:22, Yijing Wang wrote:
> Use pci_hp_add_bridge() like most other hotplug drivers
> rather than call pci_scan_bridge() directly.
>
> Signed-off-by: Yijing Wang <wangyij...@huawei.com>
> ---
> drivers/pci/hotplug/acpiphp_glue.c | 24 ++++++++++--------------
> 1 files changed, 10 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/pci/hotplug/acpiphp_glue.c
> b/drivers/pci/hotplug/acpiphp_glue.c
> index 270fdba..7d7ed3f 100644
> --- a/drivers/pci/hotplug/acpiphp_glue.c
> +++ b/drivers/pci/hotplug/acpiphp_glue.c
> @@ -811,7 +811,7 @@ static int __ref enable_device(struct acpiphp_slot *slot)
> struct pci_bus *bus = slot->bridge->pci_bus;
> struct acpiphp_func *func;
> int retval = 0;
> - int num, max, pass;
> + int num;
> acpi_status status;
>
> if (slot->flags & SLOT_ENABLED)
> @@ -827,22 +827,18 @@ static int __ref enable_device(struct acpiphp_slot
> *slot)
> goto err_exit;
> }
>
> - max = acpiphp_max_busnr(bus);
> - for (pass = 0; pass < 2; pass++) {
> - list_for_each_entry(dev, &bus->devices, bus_list) {
> - if (PCI_SLOT(dev->devfn) != slot->device)
> + list_for_each_entry(dev, &bus->devices, bus_list) {
> + if (PCI_SLOT(dev->devfn) != slot->device)
> continue;
> - if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
> - dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) {
> - max = pci_scan_bridge(bus, dev, max, pass);
> - if (pass && dev->subordinate) {
> - check_hotplug_bridge(slot, dev);
> - pci_bus_size_bridges(dev->subordinate);
> - }
> - }
> + if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
> + (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS))
> + pci_hp_add_bridge(dev);
> + if (dev->subordinate) {
> + check_hotplug_bridge(slot, dev);
> + pci_bus_size_bridges(dev->subordinate);
> }
> }
> -
> +
> pci_bus_assign_resources(bus);
> acpiphp_sanitize_bus(bus);
> acpiphp_set_hpp_values(bus);
>
--
Thanks!
Yijing
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