Messages in this thread | | | Subject | Re: [GIT PATCH] more Driver core patches for 2.6.19 | From | Benjamin Herrenschmidt <> | Date | Thu, 14 Dec 2006 08:14:31 +1100 |
| |
> Ok, what kind of ass-hat idiotic thing is this? > > irqreturn_t uio_irq_handler(int irq, void *dev_id) > { > return IRQ_HANDLED; > } > > exactly what is the point here? No way will I pull this kind of crap. You > just seem to have guaranteed a dead machine if the irq is level-triggered, > since it will keep on happening forever. > > Please remove. > > YOU CANNOT DO IRQ'S BY LETTING USER SPACE SORT IT OUT!
Actually, you can... but wether you want is a different story :-)
You can simply mask it, have it handled by userspace and re-enable it when that's done. Though say hello to horrible interrupt latencies and hope you aren't sharing it with anything critical...
I don't mean I -like- the approach... I just say it can be made to sort-of work. But I don't see the point.
Ben.
- 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/
| |