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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-10-20 15:38:54 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-11-06 18:48:58 -0600 |
| commit | 24a0c654d7d6063301c51361f911369264342b3c (patch) | |
| tree | 22d07a3196b6e8ca3ed23e5b68dcd320488b5ba7 /drivers/pci/hotplug/acpiphp_glue.c | |
| parent | 3691314a905fd716de46735d944da3f374246550 (diff) | |
| download | linux-stable-24a0c654d7d6063301c51361f911369264342b3c.tar.gz linux-stable-24a0c654d7d6063301c51361f911369264342b3c.tar.bz2 linux-stable-24a0c654d7d6063301c51361f911369264342b3c.zip | |
PCI: Add for_each_pci_bridge() helper
The following pattern is often used:
list_for_each_entry(dev, &bus->devices, bus_list) {
if (pci_is_bridge(dev)) {
...
}
}
Add a for_each_pci_bridge() helper to make that code easier to write and
read by reducing indentation level. It also saves one or few lines of code
in each occurrence.
Convert PCI core parts here at the same time.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[bhelgaas: fold in http://lkml.kernel.org/r/20171013165352.25550-1-andriy.shevchenko@linux.intel.com]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/hotplug/acpiphp_glue.c')
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 5ed2dcaa8e27..5db6f1839dad 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -462,18 +462,15 @@ static void enable_slot(struct acpiphp_slot *slot) acpiphp_rescan_slot(slot); max = acpiphp_max_busnr(bus); for (pass = 0; pass < 2; pass++) { - list_for_each_entry(dev, &bus->devices, bus_list) { + for_each_pci_bridge(dev, bus) { if (PCI_SLOT(dev->devfn) != slot->device) continue; - if (pci_is_bridge(dev)) { - max = pci_scan_bridge(bus, dev, max, pass); - if (pass && dev->subordinate) { - check_hotplug_bridge(slot, dev); - pcibios_resource_survey_bus(dev->subordinate); - __pci_bus_size_bridges(dev->subordinate, - &add_list); - } + max = pci_scan_bridge(bus, dev, max, pass); + if (pass && dev->subordinate) { + check_hotplug_bridge(slot, dev); + pcibios_resource_survey_bus(dev->subordinate); + __pci_bus_size_bridges(dev->subordinate, &add_list); } } } |