tree 33a0cad7b28df7fe8eab3410b195a29273eb2c68
parent cbf6aa89fc52c5253ee141d53eeb73147eb37ac0
author Ian Campbell <ian.campbell@citrix.com> 1294766415 +0000
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1299171419 -0500

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>