Index: head/sys/dev/hyperv/include/hyperv.h
===================================================================
--- head/sys/dev/hyperv/include/hyperv.h
+++ head/sys/dev/hyperv/include/hyperv.h
@@ -564,8 +564,6 @@
 	 */
 	boolean_t			batched_reading;
 
-	boolean_t			is_dedicated_interrupt;
-
 	struct hypercall_sigevt_in	*ch_sigevt;
 	struct hyperv_dma		ch_sigevt_dma;
 
Index: head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c
===================================================================
--- head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c
+++ head/sys/dev/hyperv/vmbus/hv_channel_mgmt.c
@@ -311,11 +311,8 @@
 	}
 	new_channel->ch_sigevt->hc_connid = VMBUS_CONNID_EVENT;
 
-	if (sc->vmbus_version != VMBUS_VERSION_WS2008) {
-		new_channel->is_dedicated_interrupt =
-		    (offer->is_dedicated_interrupt != 0);
+	if (sc->vmbus_version != VMBUS_VERSION_WS2008)
 		new_channel->ch_sigevt->hc_connid = offer->connection_id;
-	}
 
 	new_channel->monitor_group = (uint8_t) offer->monitor_id / 32;
 	new_channel->monitor_bit = (uint8_t) offer->monitor_id % 32;