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sparc64: fix pci_iounmap() when CONFIG_PCI is not set
[ Upstream commit d8b1e10a2b
]
Guenter reported [1] that the pci_iounmap() changes remain problematic,
with sparc64 allnoconfig and tinyconfig still not building due to the
header file changes and confusion with the arch-specific pci_iounmap()
implementation.
I'm pretty convinced that sparc should just use GENERIC_IOMAP instead of
doing its own thing, since it turns out that the sparc64 version of
pci_iounmap() is somewhat buggy (see [2]). But in the meantime, this
just fixes the build by avoiding the trivial re-definition of the empty
case.
Link: https://lore.kernel.org/lkml/20210920134424.GA346531@roeck-us.net/ [1]
Link: https://lore.kernel.org/lkml/CAHk-=wgheheFx9myQyy5osh79BAazvmvYURAtub2gQtMvLrhqQ@mail.gmail.com/ [2]
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 2 additions and 0 deletions
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@ -19,8 +19,10 @@ void ioport_unmap(void __iomem *addr)
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EXPORT_SYMBOL(ioport_map);
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EXPORT_SYMBOL(ioport_unmap);
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#ifdef CONFIG_PCI
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void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
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{
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/* nothing to do */
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}
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EXPORT_SYMBOL(pci_iounmap);
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#endif
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