Module Name:    src
Committed By:   pooka
Date:           Fri Jun 14 05:59:51 UTC 2013

Modified Files:
        src/sys/rump/net/lib/libshmif: if_shmem.c

Log Message:
sauce previous with a comment


To generate a diff of this commit:
cvs rdiff -u -r1.55 -r1.56 src/sys/rump/net/lib/libshmif/if_shmem.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/rump/net/lib/libshmif/if_shmem.c
diff -u src/sys/rump/net/lib/libshmif/if_shmem.c:1.55 src/sys/rump/net/lib/libshmif/if_shmem.c:1.56
--- src/sys/rump/net/lib/libshmif/if_shmem.c:1.55	Fri Jun 14 05:56:29 2013
+++ src/sys/rump/net/lib/libshmif/if_shmem.c	Fri Jun 14 05:59:50 2013
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_shmem.c,v 1.55 2013/06/14 05:56:29 pooka Exp $	*/
+/*	$NetBSD: if_shmem.c,v 1.56 2013/06/14 05:59:50 pooka Exp $	*/
 
 /*
  * Copyright (c) 2009, 2010 Antti Kantee.  All Rights Reserved.
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.55 2013/06/14 05:56:29 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.56 2013/06/14 05:59:50 pooka Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -724,6 +724,10 @@ shmif_rcv(void *arg)
 			    sc, sc->sc_devgen));
 		}
 
+		/*
+		 * Ignore packets too short to possibly be valid.
+		 * This is hit at least for the first frame on a new bus.
+		 */
 		if (__predict_false(sp.sp_len < ETHER_HDR_LEN)) {
 			DPRINTF(("shmif read packet len %d < ETHER_HDR_LEN\n",
 			    sp.sp_len));

Reply via email to