diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-10-20 23:38:54 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-11-07 03:48:58 +0300 |
| commit | 24a0c654d7d6063301c51361f911369264342b3c (patch) | |
| tree | 22d07a3196b6e8ca3ed23e5b68dcd320488b5ba7 /include/linux/pci.h | |
| parent | 3691314a905fd716de46735d944da3f374246550 (diff) | |
| download | linux-24a0c654d7d6063301c51361f911369264342b3c.tar.xz | |
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 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index f4f8ee5a7362..3dbe947b4152 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -596,6 +596,10 @@ static inline bool pci_is_bridge(struct pci_dev *dev) dev->hdr_type == PCI_HEADER_TYPE_CARDBUS; } +#define for_each_pci_bridge(dev, bus) \ + list_for_each_entry(dev, &bus->devices, bus_list) \ + if (!pci_is_bridge(dev)) {} else + static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev) { dev = pci_physfn(dev); |