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933c5a4f87
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>
60 lines
2 KiB
C
60 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/* Generic I/O port emulation.
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#ifndef __ASM_GENERIC_PCI_IOMAP_H
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#define __ASM_GENERIC_PCI_IOMAP_H
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struct pci_dev;
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#ifdef CONFIG_PCI
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/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
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extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
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extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max);
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extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
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unsigned long offset,
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unsigned long maxlen);
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extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
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unsigned long offset,
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unsigned long maxlen);
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extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
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/* Create a virtual mapping cookie for a port on a given PCI device.
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* Do not call this directly, it exists to make it easier for architectures
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* to override */
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#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
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extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
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unsigned int nr);
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#elif !defined(CONFIG_HAS_IOPORT_MAP)
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#define __pci_ioport_map(dev, port, nr) NULL
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#else
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#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
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#endif
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#elif defined(CONFIG_GENERIC_PCI_IOMAP)
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static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
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{
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return NULL;
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}
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static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max)
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{
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return NULL;
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}
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static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
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unsigned long offset,
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unsigned long maxlen)
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{
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return NULL;
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}
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static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
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unsigned long offset,
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unsigned long maxlen)
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{
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return NULL;
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}
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static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
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{ }
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#endif
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#endif /* __ASM_GENERIC_PCI_IOMAP_H */
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