Make asm-generic/io.h check CONFIG_VIRT_TO_BUS before defining virt_to_bus() and bus_to_virt(), otherwise it's easy to accidentally have a silently failing incorrect direct mapped definition rather then no definition at all.
Signed-off-by: James Hogan <[email protected]> Acked-by: Arnd Bergmann <[email protected]> --- include/asm-generic/io.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 8e260cf..6b58e23 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -346,6 +346,7 @@ extern void ioport_unmap(void __iomem *p); #define xlate_dev_kmem_ptr(p) p #define xlate_dev_mem_ptr(p) __va(p) +#ifdef CONFIG_VIRT_TO_BUS #ifndef virt_to_bus static inline unsigned long virt_to_bus(volatile void *address) { @@ -357,6 +358,7 @@ static inline void *bus_to_virt(unsigned long address) return (void *) address; } #endif +#endif #ifndef memset_io #define memset_io(a, b, c) memset(__io_virt(a), (b), (c)) -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
