Re: [PATCH #upstream-fixes] libata: skip 0xff polling for PATA controllers

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Mark Lord wrote:
> Tejun Heo wrote:
>> In a presentation of true workmanship, pata_ali asserts IRQ
>> permanantly if the TF status register is read more than once when
>> there's no device attached to the port.
> ..
> 
> Is using the altstatus reg (rather than status reg), when possible,
> a better idea here?

I dunno.  It probably differs case-by-case.  In general, status reg
should be safer as it is supposed to clear IRQ.

-- 
tejun
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