diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2013-07-23 01:37:17 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-07-25 22:35:03 +0400 |
| commit | 928bea964827d7824b548c1f8e06eccbbc4d0d7d (patch) | |
| tree | 13110a5f05a65aa487cee8be5bd58017986f4929 /drivers/acpi/pci_root.c | |
| parent | 55ed83a615730c2578da155bc99b68f4417ffe20 (diff) | |
| download | linux-928bea964827d7824b548c1f8e06eccbbc4d0d7d.tar.xz | |
PCI: Delay enabling bridges until they're needed
We currently enable PCI bridges after scanning a bus and assigning
resources. This is often done in arch code.
This patch changes this so we don't enable a bridge until necessary, i.e.,
until we enable a PCI device behind the bridge. We do this in the generic
pci_enable_device() path, so this also removes the arch-specific code to
enable bridges.
[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/acpi/pci_root.c')
| -rw-r--r-- | drivers/acpi/pci_root.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 5917839321b8..faa1d29c0261 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -527,9 +527,6 @@ static int acpi_pci_root_add(struct acpi_device *device, if (system_state != SYSTEM_BOOTING) { pcibios_resource_survey_bus(root->bus); pci_assign_unassigned_bus_resources(root->bus); - - /* need to after hot-added ioapic is registered */ - pci_enable_bridges(root->bus); } pci_bus_add_devices(root->bus); |