diff options
| author | Andy Shevchenko | 2023-03-30 19:24:29 +0300 |
|---|---|---|
| committer | Bjorn Helgaas | 2023-04-04 10:43:20 -0500 |
| commit | 144d204df78e40e6250201e71ef7d0e42d2a13fc (patch) | |
| tree | bdc2270eb7885df618cde8784121e1f85b299087 | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
PCI: Introduce pci_resource_n()
Introduce pci_resource_n() and replace open-coded implementations of it
in pci.h.
Link: https://lore.kernel.org/r/20230330162434.35055-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
| -rw-r--r-- | include/linux/pci.h | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index fafd8020c6d7..0239f12d0ba9 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1994,14 +1994,13 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); * These helpers provide future and backwards compatibility * for accessing popular PCI BAR info */ -#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) -#define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) -#define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) -#define pci_resource_len(dev,bar) \ - ((pci_resource_end((dev), (bar)) == 0) ? 0 : \ - \ - (pci_resource_end((dev), (bar)) - \ - pci_resource_start((dev), (bar)) + 1)) +#define pci_resource_n(dev, bar) (&(dev)->resource[(bar)]) +#define pci_resource_start(dev, bar) (pci_resource_n(dev, bar)->start) +#define pci_resource_end(dev, bar) (pci_resource_n(dev, bar)->end) +#define pci_resource_flags(dev, bar) (pci_resource_n(dev, bar)->flags) +#define pci_resource_len(dev,bar) \ + (pci_resource_end((dev), (bar)) ? \ + resource_size(pci_resource_n((dev), (bar))) : 0) /* * Similar to the helpers above, these manipulate per-pci_dev |