Re: [Xen-devel] [PATCH] linux: prevent invalid or unsupportable PIRQs from being used

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 5/11/08 14:13, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> By keeping the respective irq_desc[] entries pointing to no_irq_type,
> setup_irq() (and thus request_irq()) will fail for such IRQs. This
> matches native behavior, which also only installs ioapic_*_type out of
> ioapic_register_intr().
> 
> At the same time, make assign_irq_vector() fail not only when Xen
> doesn't support the PIRQ, but also if the IRQ requested doesn't fall
> in the kernel's PIRQ space.

Reverted as it breaks the build non-trivially (at least: no
set_irq_chip_and_handler_name(); no pirq_chip structure). The 2.6.18 isn't
really the place for big code restructurings anyway (this was a big patch).

 -- Keir



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