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| author |   Ian Campbell <ian.campbell@citrix.com> | 2009-02-06 19:20:31 -0800 |
|---|---|---|
| committer |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-03-30 09:26:49 -0700 |
| commit | d4c045364d3107603187f21a56ec231e74d26441 (patch) | |
| tree | b182dcd46168c14f4a97f5c891b8ea1fe51008d1 /drivers/xen/events.c | |
| parent | xen: clean up gate trap/interrupt constants (diff) | |
| download | linux-dev-d4c045364d3107603187f21a56ec231e74d26441.tar.xz linux-dev-d4c045364d3107603187f21a56ec231e74d26441.zip | |
xen: add irq_from_evtchn
Given an evtchn, return the corresponding irq.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'drivers/xen/events.c')
| -rw-r--r-- | drivers/xen/events.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 30963af5dba0..1cd2a0e15ae8 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -151,6 +151,12 @@ static unsigned int evtchn_from_irq(unsigned irq) return info_for_irq(irq)->evtchn; } +unsigned irq_from_evtchn(unsigned int evtchn) +{ + return evtchn_to_irq[evtchn]; +} +EXPORT_SYMBOL_GPL(irq_from_evtchn); + static enum ipi_vector ipi_from_irq(unsigned irq) { struct irq_info *info = info_for_irq(irq); |