make sure to calculate initial credit for both CE_bit options for CC and CR

[unix-history] / usr / src / sys / netiso / iso_chksum.c

diff --git a/usr/src/sys/netiso/iso_chksum.c b/usr/src/sys/netiso/iso_chksum.c
index 7de17fa..19d3512 100644 (file)
--- a/usr/src/sys/netiso/iso_chksum.c
+++ b/usr/src/sys/netiso/iso_chksum.c
@@ -1,3 +1,12 @@
+/*-
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.redist.c%
+ *
+ *     @(#)iso_chksum.c        7.6 (Berkeley) %G%
+ */
+

 /***********************************************************
                Copyright IBM Corporation 1987
 
 /***********************************************************
                Copyright IBM Corporation 1987
 


@@ -27,7 +36,6 @@ SOFTWARE.
 /* 
  * $Header: iso_chksum.c,v 4.7 88/07/29 15:31:26 nhall Exp $
  * $Source: /usr/argo/sys/netiso/RCS/iso_chksum.c,v $
 /* 
  * $Header: iso_chksum.c,v 4.7 88/07/29 15:31:26 nhall Exp $
  * $Source: /usr/argo/sys/netiso/RCS/iso_chksum.c,v $

- *     @(#)iso_chksum.c        7.4 (Berkeley) %G% *

  *
  * ISO CHECKSUM
  *
  *
  * ISO CHECKSUM
  *


@@ -49,10 +57,6 @@ SOFTWARE.
  */
 
 #ifdef ISO
  */
 
 #ifdef ISO

-#ifndef lint
-static char *rcsid = "$Header: iso_chksum.c,v 4.7 88/07/29 15:31:26 nhall Exp $";
-#endif
-

 #include "argo_debug.h"
 #include "param.h"
 #include "mbuf.h"
 #include "argo_debug.h"
 #include "param.h"
 #include "mbuf.h"


@@ -223,22 +227,6 @@ iso_gen_csum(m,n,l)
        ENDDEBUG
 }
 
        ENDDEBUG
 }
 

-struct mbuf  *
-m_append(head, m)
-       struct mbuf *head, *m;
-{
-       register struct mbuf *n;
-
-       if (m == 0)
-               return head;
-       if (head == 0)
-               return m;
-       n = head;
-       while (n->m_next)
-               n = n->m_next;
-       n->m_next = m;
-       return head;
-}

 /*
  * FUNCTION:   m_datalen
  *
 /*
  * FUNCTION:   m_datalen
  *


@@ -253,23 +241,13 @@ m_append(head, m)
  */
 
 int
  */
 
 int

-m_datalen (morig)
-       struct mbuf *morig;
+m_datalen (m)
+       register struct mbuf *m;

 {      
 {      

-       int     s = splimp();
-       register struct mbuf *n=morig;
-       register int datalen = 0;
+       register int datalen;

 
 

-       if( morig == (struct mbuf *)0)
-               return 0;
-       for(;;) {
-               datalen += n->m_len;
-               if (n->m_next == (struct mbuf *)0 ) {
-                       break;
-               }
-               n = n->m_next;
-       }
-       splx(s);
+       for (datalen = 0; m; m = m->m_next)
+               datalen += m->m_len;

        return datalen;
 }
 
        return datalen;
 }