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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/setup-bus.c | |
| parent | 3691314a905fd716de46735d944da3f374246550 (diff) | |
| download | linux-24a0c654d7d6063301c51361f911369264342b3c.tar.gz linux-24a0c654d7d6063301c51361f911369264342b3c.tar.bz2 linux-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/setup-bus.c')
| -rw-r--r-- | drivers/pci/setup-bus.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 958da7db9033..7ca03407404c 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1921,10 +1921,9 @@ void pci_assign_unassigned_bus_resources(struct pci_bus *bus) want additional resources */ down_read(&pci_bus_sem); - list_for_each_entry(dev, &bus->devices, bus_list) - if (pci_is_bridge(dev) && pci_has_subordinate(dev)) - __pci_bus_size_bridges(dev->subordinate, - &add_list); + for_each_pci_bridge(dev, bus) + if (pci_has_subordinate(dev)) + __pci_bus_size_bridges(dev->subordinate, &add_list); up_read(&pci_bus_sem); __pci_bus_assign_resources(bus, &add_list, NULL); BUG_ON(!list_empty(&add_list)); |