From: gene <gene@openbsd.org>
Date: Fri, 25 Apr 1997 22:15:26 +0000 (+0000)
Subject: Cool.  Drop oversized packets rather than splitting into mbufs.  NetBSD log:
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=5d947edc97bcc7254d9e91d88af24a134d476a01;p=openbsd

Cool.  Drop oversized packets rather than splitting into mbufs.  NetBSD log:
>From Mycroft:  If we fail to allocate a cluster to hold a large packet,
>simply drop it rather than using a chain of tiny mbufs.
---

diff --git a/sys/arch/mac68k/dev/if_ae.c b/sys/arch/mac68k/dev/if_ae.c
index e2a2dcb4fd5..b86ffde3894 100644
--- a/sys/arch/mac68k/dev/if_ae.c
+++ b/sys/arch/mac68k/dev/if_ae.c
@@ -1,5 +1,5 @@
-/*	$OpenBSD: if_ae.c,v 1.12 1997/04/17 17:46:41 gene Exp $	*/
-/*	$NetBSD: if_ae.c,v 1.61 1997/04/14 16:28:34 scottr Exp $	*/
+/*	$OpenBSD: if_ae.c,v 1.13 1997/04/25 22:15:26 gene Exp $	*/
+/*	$NetBSD: if_ae.c,v 1.62 1997/04/24 16:52:05 scottr Exp $	*/
 
 /*
  * Device driver for National Semiconductor DS8390/WD83C690 based ethernet
@@ -960,8 +960,11 @@ aeget(sc, src, total_len)
 		}
 		if (total_len >= MINCLSIZE) {
 			MCLGET(m, M_DONTWAIT);
-			if (m->m_flags & M_EXT)
-				len = MCLBYTES;
+			if ((m->m_flags & M_EXT) == 0) {
+				m_freem(top);
+				return 0;
+			}
+			len = MCLBYTES;
 		}
 		m->m_len = len = min(total_len, len);
 		src = ae_ring_copy(sc, src, mtod(m, caddr_t), len);