diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-03-30 19:24:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-27 15:52:52 +0300 |
| commit | 45bbb2a63e000a5491e337763a2dac27b4956242 (patch) | |
| tree | a9b96eff452fc1563c8d83a22716f68dd8502329 /include | |
| parent | 684e26014693db0a2d70a39761bed482bcb719ec (diff) | |
| download | linux-45bbb2a63e000a5491e337763a2dac27b4956242.tar.xz | |
PCI: Introduce pci_resource_n()
[ Upstream commit 144d204df78e40e6250201e71ef7d0e42d2a13fc ]
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>
Stable-dep-of: 360c400d0f56 ("p2sb: Do not scan and remove the P2SB device when it is unhidden")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -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 9e58e5400d78..28f91982402a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1996,14 +1996,13 @@ 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 |