diff --git a/drivers/staging/hv/storvsc_api.h b/drivers/staging/hv/storvsc_api.h
index fac607ca228e2b34aef7eea9c31e7096bc81bc39..d2917eb51bd2ace12df304ca1998564402854102 100644
--- a/drivers/staging/hv/storvsc_api.h
+++ b/drivers/staging/hv/storvsc_api.h
@@ -76,9 +76,6 @@ struct hv_storvsc_request {
 /* Represents the block vsc driver */
 struct storvsc_driver {
 	struct hv_driver base;
-
-	/* Set by caller (in bytes) */
-	u32 ring_buffer_size;
 };
 
 struct storvsc_device_info {