[PATCH][v2] uio: Support 36-bit physical addresses on 32-bit systems

[Kumar Gala]

On Oct 13, 2011, at 10:37 AM, David Laight wrote:

> 
>> Kumar Gala wrote:
>>>>>>> +       phys_addr_t             addr;
>>>>> 
>>>>> Please add a comment here saying:
>>>>> 
>>>>> 1) That 'addr' can be a virtual or physical address
>>> The code and everything else makes that clear
>> 
>> I'm sorry, but I have to strongly disagree here.  It is *NOT* 
>> clear that a variable of type 'phys_addr_t' can hold something
>> that is not a physical address.
> 
> Since there is a discriminating field, could a union be used?
> At a guess the type of the address is constrained between
> produces and consumer??

Uugh.

I'll add a comment to uio_mem.

- k