On Sat, Jul 23, 2022 at 06:22:48AM +0900, Stafford Horne wrote: > When building OpenRISC PCI which has no ioport_map we get the following build > error. > > lib/pci_iomap.c: In function 'pci_iomap_range': > CC drivers/i2c/i2c-core-base.o > ./include/asm-generic/pci_iomap.h:29:41: error: implicit declaration of function 'ioport_map'; did you mean 'ioremap'? [-Werror=implicit-function-declaration] > 29 | #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) > | ^~~~~~~~~~ > lib/pci_iomap.c:44:24: note: in expansion of macro '__pci_ioport_map' > 44 | return __pci_ioport_map(dev, start, len); > | ^~~~~~~~~~~~~~~~ > > This patch adds a NULL definition of __pci_ioport_map for architetures > which do not support ioport_map. > > Suggested-by: Arnd Bergmann <arnd@xxxxxxxx> > Signed-off-by: Stafford Horne <shorne@xxxxxxxxx> Appended to my pci/header-cleanup-immutable branch for v5.20, thanks! > --- > The Kconfig I am using to test this is here: > https://github.com/stffrdhrn/linux/commits/or1k-virt-4 > > include/asm-generic/pci_iomap.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h > index 5a2f9bf53384..8fbb0a55545d 100644 > --- a/include/asm-generic/pci_iomap.h > +++ b/include/asm-generic/pci_iomap.h > @@ -25,6 +25,8 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *); > #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP > extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, > unsigned int nr); > +#elif !defined(CONFIG_HAS_IOPORT_MAP) > +#define __pci_ioport_map(dev, port, nr) NULL > #else > #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) > #endif > -- > 2.36.1 >
