Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing

Tony Luck
2010-09-27T17:36:16Z

On Wed, Sep 8, 2010 at 11:14 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
>  The following architectures are still using __do_IRQ():
>
>  alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um

Thomas,

I (belatedly) took a look at fixing ia64 ... but I've run into a small snag.
The __do_IRQ() routine makes a call to:

desc->chip->end(irq);

while neither of the "handle_level_irq()" nor "handle_edge_irq()"
functions do this.

On ia64 iosapic_end_level_irq() call iosapic_eoi() for me. Without it
my system hangs during boot (with some driver timeout complaining
about dropped interrupts).

Is the omission of desc->chip->end(irq); deliberate? In which case
I need to find another place to call iosapic_eoi(). Or is it accidental?

Thanks

-Tony