diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-03-30 19:24:30 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-04-04 18:43:52 +0300 |
| commit | 09cc900632400079619e9154604fd299c2cc9a5a (patch) | |
| tree | 9abeb2ee2000fd6b91b4de0b7f401a4e23ee8fca /include/linux/pci.h | |
| parent | 144d204df78e40e6250201e71ef7d0e42d2a13fc (diff) | |
| download | linux-09cc900632400079619e9154604fd299c2cc9a5a.tar.xz | |
PCI: Introduce pci_dev_for_each_resource()
Instead of open-coding it everywhere introduce a tiny helper that can be
used to iterate over each resource of a PCI device, and convert the most
obvious users into it.
While at it drop doubled empty line before pdev_sort_resources().
No functional changes intended.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230330162434.35055-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 0239f12d0ba9..2234ef961bfe 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2002,6 +2002,20 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); (pci_resource_end((dev), (bar)) ? \ resource_size(pci_resource_n((dev), (bar))) : 0) +#define __pci_dev_for_each_res0(dev, res, ...) \ + for (unsigned int __b = 0; \ + res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \ + __b++) + +#define __pci_dev_for_each_res1(dev, res, __b) \ + for (__b = 0; \ + res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \ + __b++) + +#define pci_dev_for_each_resource(dev, res, ...) \ + CONCATENATE(__pci_dev_for_each_res, COUNT_ARGS(__VA_ARGS__)) \ + (dev, res, __VA_ARGS__) + /* * Similar to the helpers above, these manipulate per-pci_dev * driver-specific data. They are really just a wrapper around |