diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2005-11-10 13:01:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-11-10 13:01:24 -0800 |
| commit | fb286bb2990a107009dbf25f6ffebeb7df77f9be (patch) | |
| tree | 0eede2c37f1b3831e59601933eebf6b82be75ffc /include/net/tcp.h | |
| parent | 1064e944d03eb7a72c0fa11236d5e69cfd877a71 (diff) | |
[NET]: Detect hardware rx checksum faults correctly
Here is the patch that introduces the generic skb_checksum_complete
which also checks for hardware RX checksum faults. If that happens,
it'll call netdev_rx_csum_fault which currently prints out a stack
trace with the device name. In future it can turn off RX checksum.
I've converted every spot under net/ that does RX checksum checks to
use skb_checksum_complete or __skb_checksum_complete with the
exceptions of:
* Those places where checksums are done bit by bit. These will call
netdev_rx_csum_fault directly.
* The following have not been completely checked/converted:
ipmr
ip_vs
netfilter
dccp
This patch is based on patches and suggestions from Stephen Hemminger
and David S. Miller.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index c24339c4e31..96cc3b434e4 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -27,6 +27,7 @@ #include <linux/slab.h> #include <linux/cache.h> #include <linux/percpu.h> +#include <linux/skbuff.h> #include <net/inet_connection_sock.h> #include <net/inet_timewait_sock.h> @@ -852,7 +853,7 @@ static __inline__ u16 tcp_v4_check(struct tcphdr *th, int len, static __inline__ int __tcp_checksum_complete(struct sk_buff *skb) { - return (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)); + return __skb_checksum_complete(skb); } static __inline__ int tcp_checksum_complete(struct sk_buff *skb) |