Jeff Garzik <[email protected]> writes:
> Eric W. Biederman wrote:
>> In this case we can easily pass the irqno into request_irq, allowing
>> us to do "unsigned int intno = (unsigned int)dev_id;".
>>
>> I suspect this is the case for the majority of the non-trivial users
>> as well.
>
>
> Not that easy, alas :) Save for weirdos like the mac drivers I highlighted, it
> seems like most drivers in the non-trivial already pass a useful pointer to
> request_irq().
I was talking about vm86_32.c in particular. Where we allow user space
through the vm86 interface to directly handle the isa irq.
> But as I mentioned, most of the "non-trivial" uses are actually trivial -- just
> not as simple as removing the 'int irq' argument. Most of the time the irq
> number is used in non-critical ways like printk's. A few times its used to
> index into a structure (something dev_id could replace).
Yes.
Eric
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