Re: [Xen-devel] [PATCH][RFC] pv-ops: fix shared irq device passthrough

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 10/26/09 18:32, Han, Weidong wrote:
>> Hm, not sure about this.  The logic in __setup_irq already looks
>> pretty tortured, and I'd like to avoid touching it unless there's
>> definitively a bug in there.
>>
>> I think the right question is whether probe_irq() is really doing the
>> right test, and whether it could do something else instead?
>>     
> Totally agree. The better way is to change probe_irq, therefore needn't touch 
> kernel irq stuffs. probe_irq is just check if desc->action == NULL or not. 
> The code is there for a long long time (from c/s 26 in linux-2.6.18-xen.hg). 
> I don't know whether it can be replaced. 
>   

Could you look into it?  How many drivers do interrupt probing these
days anyway?  I think we can safely not support ISA devices.

    J

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