> Ok, the 'type' attribute isn't enough.
>
> I feel like we are trying to do two things at the same time:
> a) the size of the allocated area isn't required if we need to do something
> real with the data: if size doesn't match what is expected, we loose
> anyway
> b) if we don't care about the copied data, we actually ask for the subtype
> of the interface
>
> -> a) and b) are two different operations imho.
Depends on the point of view, but generally it might be true.
However, it is quite practical to do a+b in one call:
- utilities will always do it in exactly that order,
- we don't need to worry about races (process A gets type/size; process
B changes protocol; process A gets invalid data).
-- Krzysztof Halasa Network Administrator - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/