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tile: provide default ioremap declaration

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Add a default ioremap function which was not provided in all
circumstances.  (Only when CONFIG_PCI and CONFIG_TILEGX was set).

I have designs to use them in scatterlist.c where they'd likely never be
called with this architecture, but it is needed to compile.  Thus, if
the function is ever hit it returns NULL.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Logan Gunthorpe <[email protected]>
Signed-off-by: Stephen Bates <[email protected]>
Cc: Chris Metcalf <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Logan Gunthorpe 2017-07-06 15:35:40 -07:00 • committed by Linus Torvalds
commit 3922920026
1 changed files with 11 additions and 0 deletions
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11
arch/tile/mm/pgtable.c
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@ -503,6 +503,17 @@ void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
}
EXPORT_SYMBOL(ioremap_prot);
#if !defined(CONFIG_PCI) || !defined(CONFIG_TILEGX)
/* ioremap is conditionally declared in pci_gx.c */
void __iomem *ioremap(resource_size_t phys_addr, unsigned long size)
{
return NULL;
}
EXPORT_SYMBOL(ioremap);
#endif
/* Unmap an MMIO VA mapping. */
void iounmap(volatile void __iomem *addr_in)
{