Re: [PATCH] Convert width in bits to bytes in __acpi_ioremap_fast()

[Huang Ying <ying.huang@intel.com>]

Sorry for late.

On 10/22/2011 05:42 AM, Luck, Tony wrote:
> Callers to __acpi_ioremap_fast() pass the bit_width that they found in the
> acpi_generic_address structure. Convert from bits to bytes when passing to
> __acpi_find_iomap() - as it wants to see bytes, not bits.
> 
> Signed-off-by: Tony Luck <tony.luck@intel.com>
> ---
>  drivers/acpi/atomicio.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c
> index 252888f..70ffb71 100644
> --- a/drivers/acpi/atomicio.c
> +++ b/drivers/acpi/atomicio.c
> @@ -78,7 +78,7 @@ static void __iomem *__acpi_ioremap_fast(phys_addr_t paddr,
>  {
>  	struct acpi_iomap *map;
>  
> -	map = __acpi_find_iomap(paddr, size);
> +	map = __acpi_find_iomap(paddr, size/8);
>  	if (map)
>  		return map->vaddr + (paddr - map->paddr);
>  	else

Good catch! Thanks.

Or change the caller acpi_atomic_read_mem/write_mem?

Best Regards,
Huang Ying