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hyperv/et: Allow Hyper-V event timer be disabled

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MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6599
This commit is contained in:
Sepherosa Ziehau 2016-05-30 09:44:17 +00:00
parent 6072b2511c
commit 496d023db3
1 changed files with 3 additions and 0 deletions
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3
sys/dev/hyperv/vmbus/hv_et.c
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@ -113,6 +113,9 @@ vmbus_et_identify(driver_t *driver, device_t parent)
static int
vmbus_et_probe(device_t dev)
{
if (resource_disabled(VMBUS_ET_NAME, 0))
return (ENXIO);
device_set_desc(dev, "Hyper-V event timer");
return (BUS_PROBE_NOWILDCARD);