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| author | Al Viro <viro@ftp.linux.org.uk> | 2007-12-22 18:56:05 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:07:59 -0800 |
| commit | 7cd61888d2ab9fa7e08205b18a24885e523df048 (patch) | |
| tree | 604f9b22de7394c83c98184ac4c35b11fbc6b43d | |
| parent | 3dd5f1d422d8a736178a760562c98d4169b33a23 (diff) | |
| download | op-kernel-dev-7cd61888d2ab9fa7e08205b18a24885e523df048.zip op-kernel-dev-7cd61888d2ab9fa7e08205b18a24885e523df048.tar.gz | |
slhc annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/net/slhc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/slhc.c b/drivers/net/slhc.c index 0adab70..1634697 100644 --- a/drivers/net/slhc.c +++ b/drivers/net/slhc.c @@ -233,6 +233,7 @@ slhc_compress(struct slcompress *comp, unsigned char *icp, int isize, register unsigned char *cp = new_seq; struct iphdr *ip; struct tcphdr *th, *oth; + __sum16 csum; /* @@ -428,7 +429,7 @@ found: /* Grab the cksum before we overwrite it below. Then update our * state with this packet's header. */ - deltaA = ntohs(th->check); + csum = th->check; memcpy(&cs->cs_ip,ip,20); memcpy(&cs->cs_tcp,th,20); /* We want to use the original packet as our compressed packet. @@ -449,7 +450,8 @@ found: *cpp = ocp; *cp++ = changes; } - cp = put16(cp,(short)deltaA); /* Write TCP checksum */ + *(__sum16 *)cp = csum; + cp += 2; /* deltaS is now the size of the change section of the compressed header */ memcpy(cp,new_seq,deltaS); /* Write list of deltas */ memcpy(cp+deltaS,icp+hlen,isize-hlen); @@ -519,10 +521,8 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize) thp = &cs->cs_tcp; ip = &cs->cs_ip; - if((x = pull16(&cp)) == -1) { /* Read the TCP checksum */ - goto bad; - } - thp->check = htons(x); + thp->check = *(__sum16 *)cp; + cp += 2; thp->psh = (changes & TCP_PUSH_BIT) ? 1 : 0; /* |
