Re: [PATCH]: PCI: GART iommu alignment fixes [v2]

[Prarit Bhargava <prarit@redhat.com>]

>>
>>  
>>> @@ -265,7 +268,7 @@ static dma_addr_t dma_map_area(struct device 
>>> *dev, dma_addr_t phys_mem,
>>>  static dma_addr_t
>>>  gart_map_simple(struct device *dev, phys_addr_t paddr, size_t size, 
>>> int dir)
>>>  {
>>> -    dma_addr_t map = dma_map_area(dev, paddr, size, dir);
>>> +    dma_addr_t map = dma_map_area(dev, paddr, size, dir, size - 1);
>>>     
>
> Maybe I'm missing something -- what implies  size has to be a power of 
> two?
>
> P.
>

Ixnay that last comment -- I geddit (duh.).

The implication of "size-1" is that size is always a power of two.

Jesse -- I'll have to post a follow-up patch to fix this.

P.