From: John Keller <jpk@sgi.com>
Date: Mon, 8 Dec 2008 17:44:11 +0000 (-0600)
Subject: [IA64] SN: prevent IRQ retargetting in request_irq()
X-Git-Tag: v2.6.28-rc8~12^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff740fb02146c83d96def1b897ed232b4e0fbcfd;p=pandora-kernel.git

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

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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