From: Ian Campbell <ian.campbell@citrix.com>
Date: Tue, 11 Jan 2011 17:20:15 +0000 (+0000)
Subject: xen: events: add xen_allocate_irq_{dynamic, gsi} and xen_free_irq
X-Git-Tag: v2.6.39-rc1~520^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c9df1ce585e3bb5a2f101c1d87381b285a9f962f;p=pandora-kernel.git

xen: events: add xen_allocate_irq_{dynamic, gsi} and xen_free_irq

This is neater than open-coded calls to irq_alloc_desc_at and
irq_free_desc.

No intended behavioural change.

Note that we previously were not checking the return value of
irq_alloc_desc_at which would be failing for GSI<NR_IRQS_LEGACY
because the core architecture code has already allocated those for
us. Hence the additional check against NR_IRQS_LEGACY in
xen_allocate_irq_gsi.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
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