[Segher Boessenkool]

>> +               if (cb & 0x5) { /* if controller is configured for
>> pci-native mode for both channels */
>>
>> The above expression allows 1, 4, or 5 for the masked bits.  I'm
>> guessing you
>> wanted to test that equal to either 5 or 0.
>
> I think the proper test is ((cb & 5) == 5) but I can't remember for
> sure..

That is correct if you know for sure the controller
actually supports native mode, and doesn't have that
support turned off by some configuration setting;
otherwise, the test should be ((cb & 0xf) == 0xf).


Segher