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Cleanup and simplify the padding at the start of the mbuf chain so that

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the IP packet is word aligned using the ALIGN macro.
This commit is contained in:
mark 1997-11-06 01:55:18 +00:00
parent 2b325ac968
commit 1a05b5daa4
1 changed files with 8 additions and 7 deletions
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15
sys/arch/arm32/dev/dp8390.c
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@ -1,4 +1,4 @@
/* $NetBSD: dp8390.c,v 1.1 1997/10/18 04:38:19 mark Exp $ */
/* $NetBSD: dp8390.c,v 1.2 1997/11/06 01:55:18 mark Exp $ */
/*
* Device driver for National Semiconductor DS8390/WD83C690 based ethernet
@ -1006,8 +1006,7 @@ dp8390_get(sc, src, total_len)
return 0;
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = total_len;
m->m_data += 2; /* XXX */
len = MHLEN - 2;
len = MHLEN;
top = 0;
mp = ⊤
@ -1028,10 +1027,12 @@ dp8390_get(sc, src, total_len)
return 0;
}
len = MCLBYTES;
if (top == 0) {
len -= 2;
m->m_data += 2;
}
}
if (top == 0) {
int pad = ALIGN(sizeof(struct ether_header))
- sizeof(struct ether_header);
len -= pad;
m->m_data += pad;
}
m->m_len = len = min(total_len, len);
if (sc->ring_copy)