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PCI: Stub __pci_ioport_map() for arches that don't support it at all

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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);
	|                        ^~~~~~~~~~~~~~~~

Add a NULL definition of __pci_ioport_map() for architectures that do not
support ioport_map().

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220722212248.802500-1-shorne@gmail.com
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Stafford Horne 2022-07-23 06:22:48 +09:00 committed by Bjorn Helgaas
parent d63ed7fe85
commit 933c5a4f87
1 changed files with 2 additions and 0 deletions
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2
include/asm-generic/pci_iomap.h
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@ -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