From f9573cffbde6dd807c7237c60a090b3195d6dbec Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Mon, 4 May 1998 06:11:50 +0000
Subject: [PATCH] work around se driver bug

---
 modules/ppp_ahdlc.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/modules/ppp_ahdlc.c b/modules/ppp_ahdlc.c
index c1853bb..cfde35d 100644
--- a/modules/ppp_ahdlc.c
+++ b/modules/ppp_ahdlc.c
@@ -24,7 +24,7 @@
  * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
  * OR MODIFICATIONS.
  *
- * $Id: ppp_ahdlc.c,v 1.7 1998/03/24 23:52:35 paulus Exp $
+ * $Id: ppp_ahdlc.c,v 1.8 1998/05/04 06:11:50 paulus Exp $
  */
 
 /*
@@ -395,12 +395,14 @@ stuff_frame(q, mp)
 	goto bomb;
 
     /*
-     * Put in an initial flag for now.  We'll remove it later
-     * if we decide we don't need it.
+     * Put in an initial flag, unless the serial driver currently has
+     * packets still to be transmitted in its queue.
      */
     dp = op->b_wptr;
-    *dp++ = PPP_FLAG;
-    --olen;
+    if (qsize(q->q_next) == 0) {
+	*dp++ = PPP_FLAG;
+	--olen;
+    }
 
     /*
      * For LCP packets with code values between 1 and 7 (Conf-Req
@@ -512,12 +514,6 @@ stuff_frame(q, mp)
     *dp++ = PPP_FLAG;
     op->b_wptr = dp;
 
-    /*
-     * Remove the initial flag, if possible.
-     */
-    if (qsize(q->q_next) > 0)
-	++omsg->b_rptr;
-
     /*
      * Update statistics.
      */
-- 
2.39.2