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This commit is contained in:
thorpej 2002-08-14 23:53:07 +00:00
parent 4706ae8670
commit 45adf20cfe
1 changed files with 35 additions and 30 deletions
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65
sys/arch/arm/arm/in_cksum_arm.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: in_cksum_arm.c,v 1.3 2001/12/08 21:18:50 chris Exp $ */
/* $NetBSD: in_cksum_arm.c,v 1.4 2002/08/14 23:53:07 thorpej Exp $ */
/*
* ARM version:
@ -80,7 +80,8 @@
adcs %1,%1,%2; adcs %1,%1,%3 \n\
adcs %1,%1,%4; adcs %1,%1,%5 \n\
adcs %1,%1,#0\n" \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), \
"=&r" (tmp3), "=&r" (tmp4) \
: "0" (w), "r" (sum) \
: "cc")
@ -92,7 +93,8 @@
adcs %1,%1,%2; adcs %1,%1,%3 \n\
adcs %1,%1,%4; adcs %1,%1,%5 \n\
adcs %1,%1,#0\n" \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), \
"=&r" (tmp3), "=&r" (tmp4) \
: "0" (w), "r" (sum) \
: "cc")
@ -101,7 +103,8 @@
adds %1,%7,%2; adcs %1,%1,%3 \n\
adcs %1,%1,%4; adcs %1,%1,%5 \n\
adcs %1,%1,#0\n" \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
: "=r" (w), "=r" (sum), "=&r" (tmp1), "=&r" (tmp2), \
"=&r" (tmp3), "=&r" (tmp4) \
: "0" (w), "r" (sum) \
: "cc")
@ -227,41 +230,43 @@ in_cksum_internal(struct mbuf *m, int off, int len, u_int sum)
int
in_cksum(m, len)
struct mbuf *m;
int len;
struct mbuf *m;
int len;
{
return (in_cksum_internal(m, 0, len, 0));
return (in_cksum_internal(m, 0, len, 0));
}
int
in4_cksum(m, nxt, off, len)
struct mbuf *m;
u_int8_t nxt;
int off, len;
struct mbuf *m;
u_int8_t nxt;
int off, len;
{
u_int sum = 0;
if (nxt != 0) {
/* for ADD macros */
register u_int tmp1, tmp2, tmp3, tmp4;
u_char *w;
struct ipovly ipov;
/* pseudo header */
if (off < sizeof(struct ipovly))
panic("in4_cksum: offset too short");
if (m->m_len < sizeof(struct ip))
panic("in4_cksum: bad mbuf chain");
bzero(&ipov, sizeof(ipov));
ipov.ih_len = htons(len);
ipov.ih_pr = nxt;
ipov.ih_src = mtod(m, struct ip *)->ip_src;
ipov.ih_dst = mtod(m, struct ip *)->ip_dst;
w = (u_char *)&ipov;
/* assumes sizeof(ipov) == 20 */
ADD16;
ADD4;
/* for ADD macros */
register u_int tmp1, tmp2, tmp3, tmp4;
u_char *w;
struct ipovly ipov;
/* pseudo header */
if (off < sizeof(struct ipovly))
panic("in4_cksum: offset too short");
if (m->m_len < sizeof(struct ip))
panic("in4_cksum: bad mbuf chain");
bzero(&ipov, sizeof(ipov));
ipov.ih_len = htons(len);
ipov.ih_pr = nxt;
ipov.ih_src = mtod(m, struct ip *)->ip_src;
ipov.ih_dst = mtod(m, struct ip *)->ip_dst;
w = (u_char *)&ipov;
/* assumes sizeof(ipov) == 20 */
ADD16;
ADD4;
}
/* skip unnecessary part */
while (m && off > 0) {