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authorAl Viro <viro@ftp.linux.org.uk>2007-12-22 18:56:05 +0000
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:07:59 -0800
commit7cd61888d2ab9fa7e08205b18a24885e523df048 (patch)
tree604f9b22de7394c83c98184ac4c35b11fbc6b43d /drivers/net/slhc.c
parent3dd5f1d422d8a736178a760562c98d4169b33a23 (diff)
slhc annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/slhc.c')
-rw-r--r--drivers/net/slhc.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/slhc.c b/drivers/net/slhc.c
index 0adab709ab68..163469739db2 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;
/*