[IA64] SN: prevent IRQ retargetting in request_irq()

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With the introduction of the generic affinity autoselector,
irq_select_affinity(), IRQs are now being retargetted,
using a default mask, via the request_irq() path.
This results in all IRQs targetted at CPU 0.

SN Altix assigns affinity in the SN PROM, and does not
expect that to be changed as part of request_irq().

Set the IRQ_AFFINITY_SET flag to prevent
request_irq() from resetting affinity.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

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John Keller 2008-12-08 11:44:11 -06:00 • committed by Tony Luck

parent 3c0db899bf

commit ff740fb021

1 changed files with 8 additions and 1 deletions

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arch/ia64/sn/kernel/irq.c

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