diff options
| author | Liviu Dudau <[email protected]> | 2014-09-29 15:29:20 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2014-09-30 09:42:44 -0600 |
| commit | 112eeaa7f87bbd2925e919486bb504f8954fa675 (patch) | |
| tree | 9a03aed0429ce92cf5fd218f14b3427bcc5e1ec1 | |
| parent | 52addcf9d6669fa439387610bc65c92fa0980cef (diff) | |
asm-generic/io.h: Fix ioport_map() for !CONFIG_GENERIC_IOMAP
The !CONFIG_GENERIC_IOMAP version of ioport_map() is wrong. It returns a
mapped, i.e., virtual, address that can start from zero and completely
ignores the PCI_IOBASE and IO_SPACE_LIMIT that most architectures that use
!CONFIG_GENERIC_MAP define.
Tested-by: Tanmay Inamdar <[email protected]>
Signed-off-by: Liviu Dudau <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
| -rw-r--r-- | include/asm-generic/io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 975e1cc75edb..b8fdc57a7335 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -331,7 +331,7 @@ static inline void iounmap(void __iomem *addr) #ifndef CONFIG_GENERIC_IOMAP static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) { - return (void __iomem *) port; + return PCI_IOBASE + (port & IO_SPACE_LIMIT); } static inline void ioport_unmap(void __iomem *p) |