[PATCH v8 13/25] alpha/PCI: Use PCI resource accessor macros
From: Krzysztof Wilczyński <kwilczynski@kernel.org>
Date: 2026-06-19 08:52:52
Also in:
linux-alpha, linux-pci
Subsystem:
alpha port, the rest · Maintainers:
Richard Henderson, Matt Turner, Magnus Lindholm, Linus Torvalds
Replace direct pdev->resource[] accesses with pci_resource_n(), and open-coded res->flags type checks with pci_resource_is_mem() and pci_resource_start() helpers. While at it, move the pci_resource_n() call directly into pcibios_resource_to_bus() and drop the local struct resource pointer. No functional changes intended. Tested-by: Magnus Lindholm <linmag7@gmail.com> Tested-by: Shivaprasad G Bhat <redacted> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Acked-by: Magnus Lindholm <linmag7@gmail.com> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> --- arch/alpha/kernel/pci-sysfs.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 2330ab84d59c..5c29f1d2821c 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c@@ -70,7 +70,6 @@ static int pci_mmap_resource(struct kobject *kobj, { struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj)); int barno = (unsigned long)attr->private; - struct resource *res = pci_resource_n(pdev, barno); enum pci_mmap_state mmap_type; struct pci_bus_region bar; int ret;
@@ -79,15 +78,16 @@ static int pci_mmap_resource(struct kobject *kobj, if (ret) return ret; - if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(res->start)) + if (pci_resource_is_mem(pdev, barno) && + iomem_is_exclusive(pci_resource_start(pdev, barno))) return -EINVAL; if (!__pci_mmap_fits(pdev, barno, vma, sparse)) return -EINVAL; - pcibios_resource_to_bus(pdev->bus, &bar, res); + pcibios_resource_to_bus(pdev->bus, &bar, pci_resource_n(pdev, barno)); vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); - mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io; + mmap_type = pci_resource_is_mem(pdev, barno) ? pci_mmap_mem : pci_mmap_io; return hose_mmap_page_range(pdev->sysdata, vma, mmap_type, sparse); }
@@ -141,7 +141,7 @@ static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num) long dense_offset; unsigned long sparse_size; - pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]); + pcibios_resource_to_bus(pdev->bus, &bar, pci_resource_n(pdev, num)); /* All core logic chips have 4G sparse address space, except CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM
@@ -181,7 +181,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num) suffix = ""; /* Assume bwx machine, normal resourceN files. */ nlen1 = 10; - if (pdev->resource[num].flags & IORESOURCE_MEM) { + if (pci_resource_is_mem(pdev, num)) { sparse_base = hose->sparse_mem_base; dense_base = hose->dense_mem_base; if (sparse_base && !sparse_mem_mmap_fits(pdev, num)) {
--
2.54.0