diff options
Diffstat (limited to 'arch/mips/lib/iomap-pci.c')
| -rw-r--r-- | arch/mips/lib/iomap-pci.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c index fd35daa45314..1b7ce19fb3bb 100644 --- a/arch/mips/lib/iomap-pci.c +++ b/arch/mips/lib/iomap-pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Implement the default iomap interfaces * @@ -7,9 +8,11 @@ * written by Ralf Baechle <ralf@linux-mips.org> */ #include <linux/pci.h> -#include <linux/module.h> +#include <linux/export.h> #include <asm/io.h> +#ifdef CONFIG_PCI_DRIVERS_LEGACY + void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, unsigned int nr) { @@ -29,7 +32,7 @@ void __iomem *__pci_ioport_map(struct pci_dev *dev, sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number); printk(KERN_WARNING "io_map_base of root PCI bus %s unset. " "Trying to continue but you better\nfix this issue or " - "report it to linux-mips@linux-mips.org or your " + "report it to linux-mips@vger.kernel.org or your " "vendor.\n", name); #ifdef CONFIG_PCI_DOMAINS panic("To avoid data corruption io_map_base MUST be set with " @@ -40,9 +43,14 @@ void __iomem *__pci_ioport_map(struct pci_dev *dev, return (void __iomem *) (ctrl->io_map_base + port); } -void pci_iounmap(struct pci_dev *dev, void __iomem * addr) +void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { - iounmap(addr); -} + struct pci_controller *ctrl = dev->bus->sysdata; + void __iomem *base = (void __iomem *)ctrl->io_map_base; + if (addr < base || addr > (base + resource_size(ctrl->io_resource))) + iounmap(addr); +} EXPORT_SYMBOL(pci_iounmap); + +#endif /* CONFIG_PCI_DRIVERS_LEGACY */ |