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authordfr <dfr@FreeBSD.org>1998-07-12 16:46:52 +0000
committerdfr <dfr@FreeBSD.org>1998-07-12 16:46:52 +0000
commitdfb8bf9c472183d4f414f43c09005cba16369ff3 (patch)
treefc569cdda49c5183ba1f908ba9a49cdda9ff84ad
parentbdb4d90548b25551c32744913d7f68eba1af8717 (diff)
downloadFreeBSD-src-dfb8bf9c472183d4f414f43c09005cba16369ff3.zip
FreeBSD-src-dfb8bf9c472183d4f414f43c09005cba16369ff3.tar.gz
Make sure the packet is aligned correctly for the alpha in if_simloop.
-rw-r--r--sys/net/if_loop.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/sys/net/if_loop.c b/sys/net/if_loop.c
index be6d25c..eef3615 100644
--- a/sys/net/if_loop.c
+++ b/sys/net/if_loop.c
@@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)if_loop.c 8.1 (Berkeley) 6/10/93
- * $Id: if_loop.c,v 1.35 1998/06/14 20:58:15 julian Exp $
+ * $Id: if_loop.c,v 1.36 1998/06/14 23:53:43 julian Exp $
*/
/*
@@ -216,8 +216,19 @@ if_simloop(ifp, m, dst, hlen)
#endif
/* Strip away media header */
- if (hlen > 0)
+ if (hlen > 0) {
+#ifdef __alpha__
+ /* The alpha doesn't like unaligned data.
+ * We move data down in the first mbuf */
+ if (hlen & 3) {
+ bcopy(m->m_data + hlen, m->m_data, m->m_len - hlen);
+ m->m_len -= hlen;
+ if (m->m_flags & M_PKTHDR)
+ m->m_pkthdr.len -= hlen;
+ } else
+#endif
m_adj(m, hlen);
+ }
switch (dst->sa_family) {
#ifdef INET
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