diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c
index e20595ab9..0687202a9 100644
--- a/hw/xfree86/dri2/dri2.c
+++ b/hw/xfree86/dri2/dri2.c
@@ -912,8 +912,7 @@ DRI2WaitMSC(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc,
 }
 
 int
-DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, CARD64 target_sbc,
-	    CARD64 *ust, CARD64 *msc, CARD64 *sbc)
+DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, CARD64 target_sbc)
 {
     DRI2DrawablePtr pPriv;
 
@@ -927,14 +926,13 @@ DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, CARD64 target_sbc,
     if (target_sbc == 0)
         target_sbc = pPriv->swap_count + pPriv->swapsPending;
 
-    /* If current swap count already >= target_sbc,
+    /* If current swap count already >= target_sbc, reply and
      * return immediately with (ust, msc, sbc) triplet of
      * most recent completed swap.
      */
     if (pPriv->swap_count >= target_sbc) {
-        *sbc = pPriv->swap_count;
-        *msc = pPriv->last_swap_msc;
-        *ust = pPriv->last_swap_ust;
+        ProcDRI2WaitMSCReply(client, pPriv->last_swap_ust,
+                             pPriv->last_swap_msc, pPriv->swap_count);
         return Success;
     }
 
diff --git a/hw/xfree86/dri2/dri2.h b/hw/xfree86/dri2/dri2.h
index f08ca29f3..fe0bf6ccb 100644
--- a/hw/xfree86/dri2/dri2.h
+++ b/hw/xfree86/dri2/dri2.h
@@ -265,8 +265,7 @@ extern _X_EXPORT int DRI2WaitMSC(ClientPtr client, DrawablePtr pDrawable,
 extern _X_EXPORT int ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust,
 					  CARD64 msc, CARD64 sbc);
 extern _X_EXPORT int DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw,
-				 CARD64 target_sbc, CARD64 *ust, CARD64 *msc,
-				 CARD64 *sbc);
+				 CARD64 target_sbc);
 extern _X_EXPORT Bool DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw);
 
 extern _X_EXPORT Bool DRI2CanFlip(DrawablePtr pDraw);
diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c
index db04268cb..8016edb3f 100644
--- a/hw/xfree86/dri2/dri2ext.c
+++ b/hw/xfree86/dri2/dri2ext.c
@@ -520,9 +520,8 @@ static int
 ProcDRI2WaitSBC(ClientPtr client)
 {
     REQUEST(xDRI2WaitSBCReq);
-    xDRI2MSCReply rep;
     DrawablePtr pDrawable;
-    CARD64 target, ust, msc, sbc;
+    CARD64 target;
     int status;
 
     REQUEST_SIZE_MATCH(xDRI2WaitSBCReq);
@@ -532,18 +531,9 @@ ProcDRI2WaitSBC(ClientPtr client)
 	return status;
 
     target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi);
-    status = DRI2WaitSBC(client, pDrawable, target, &ust, &msc, &sbc);
-    if (status != Success)
-	return status;
+    status = DRI2WaitSBC(client, pDrawable, target);
 
-    rep.type = X_Reply;
-    rep.length = 0;
-    rep.sequenceNumber = client->sequence;
-    load_msc_reply(&rep, ust, msc, sbc);
-
-    WriteToClient(client, sizeof(xDRI2MSCReply), &rep);
-
-    return Success;
+    return status;
 }
 
 static int