[PATCH v8 2/7] PCI: Introduce pci_resource_n()
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2023-03-30 16:28:39
Also in:
linux-acpi, linux-alpha, linux-arm-kernel, linux-mips, linux-pci, linux-sh, lkml, sparclinux, xen-devel
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
Introduce pci_resource_n() and replace open-coded implementations of it in pci.h. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Philippe Mathieu-Daudé <redacted> --- include/linux/pci.h | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b50e5c79f7e3..aeaa95455d4c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h@@ -1995,14 +1995,13 @@ 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
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2.40.0.1.gaa8946217a0b