RE: [PATCH] 2.6.1-mm2: Get irq_vector size right for generic subarchUP installer kernels

[Zwane Mwaikambo]

On Wed, 14 Jan 2004, Nakajima, Jun wrote:

> assign_irq_vector() is okay, and it simply returns vectors
> (FIRST_DEVICE_VECTOR <= vector < FIRST_SYSTEM_VECTOR). That means those
> IRQs will eventually share the same vector(s). Look at the code.

Ok so you have different irqs sharing vectors, how does this work with the
following (where $vector really means $irq of course)?

.data
ENTRY(interrupt)
.text

vector=0
ENTRY(irq_entries_start)
.rept NR_IRQS
        ALIGN
1:      pushl $vector-256
        jmp common_interrupt

Also i was thinking about when you exhaust all 200 odd
spare vectors and then end up doing set_intr_gate twice on the same
vector? I may be missing something really obvious here.

Thanks

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