Re: [tip:x86/headers] x86: fix "__udivdi3" [drivers/scsi/aha1542.ko] undefined

["H. Peter Anvin" <hpa@zytor.com>]

James Bottomley wrote:
>  arch/x86/include/asm/io.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
> index e5a2ab4..4f8e820 100644
> --- a/arch/x86/include/asm/io.h
> +++ b/arch/x86/include/asm/io.h
> @@ -125,7 +125,7 @@ static inline void *phys_to_virt(phys_addr_t address)
>  /*
>   * ISA I/O bus memory addresses are 1:1 with the physical address.
>   */
> -#define isa_virt_to_bus virt_to_phys
> +#define isa_virt_to_bus (unsigned long)virt_to_phys
>  #define isa_page_to_bus page_to_phys
>  #define isa_bus_to_virt phys_to_virt
>  

This changes one token to multiple, and not even with the highest
precedence.

It needs to be something like:

#define isa_virt_to_bus(x) ((unsigned int)virt_to_phys(x))

... if we're going to do that.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.