get rid of m_append, rewrite m_datalen

SCCS-vsn: sys/netiso/iso_chksum.c 7.6

diff --git a/usr/src/sys/netiso/iso_chksum.c b/usr/src/sys/netiso/iso_chksum.c
index a67fb4f..19d3512 100644 (file)
--- a/usr/src/sys/netiso/iso_chksum.c
+++ b/usr/src/sys/netiso/iso_chksum.c
@@ -4,7 +4,7 @@
  *
  * %sccs.include.redist.c%
  *
  *
  * %sccs.include.redist.c%
  *

- *     @(#)iso_chksum.c        7.5 (Berkeley) %G%
+ *     @(#)iso_chksum.c        7.6 (Berkeley) %G%

  */
 
 /***********************************************************
  */
 
 /***********************************************************


@@ -227,22 +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
  *


@@ -257,23 +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;
 }