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Undo revision 1.175 (hi jason!) to prevent a buzz-loop in

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bus_dmamap_load_mbuf(). This implementation already dealt
with zero length mbufs.

Addresses port-sparc64/29473
This commit is contained in:
scw 2005-03-04 22:04:51 +00:00
parent cac7cf0758
commit 51315622ae
1 changed files with 2 additions and 5 deletions
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7
sys/arch/sparc64/sparc64/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.177 2005/01/30 16:56:26 chs Exp $ */
/* $NetBSD: machdep.c,v 1.178 2005/03/04 22:04:51 scw Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -78,7 +78,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.177 2005/01/30 16:56:26 chs Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.178 2005/03/04 22:04:51 scw Exp $");
#include "opt_ddb.h"
#include "opt_compat_netbsd.h"
@ -1113,9 +1113,6 @@ _bus_dmamap_load_mbuf(t, map, m, flags)
vaddr_t vaddr = mtod(m, vaddr_t);
long buflen = (long)m->m_len;
if (buflen == 0)
continue;
len += buflen;
while (buflen > 0 && i < MAX_DMA_SEGS) {
paddr_t pa;