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| 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 /net/rxrpc | |
| parent | 1064e944d03eb7a72c0fa11236d5e69cfd877a71 (diff) | |
| download | linux-stable-fb286bb2990a107009dbf25f6ffebeb7df77f9be.tar.gz linux-stable-fb286bb2990a107009dbf25f6ffebeb7df77f9be.tar.bz2 linux-stable-fb286bb2990a107009dbf25f6ffebeb7df77f9be.zip | |
[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 'net/rxrpc')
| -rw-r--r-- | net/rxrpc/transport.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/net/rxrpc/transport.c b/net/rxrpc/transport.c index 122c086ee2db..dbe6105e83a5 100644 --- a/net/rxrpc/transport.c +++ b/net/rxrpc/transport.c @@ -23,6 +23,7 @@ #include <linux/in.h> #include <linux/in6.h> #include <linux/icmp.h> +#include <linux/skbuff.h> #include <net/sock.h> #include <net/ip.h> #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) @@ -475,15 +476,11 @@ void rxrpc_trans_receive_packet(struct rxrpc_transport *trans) /* we'll probably need to checksum it (didn't call * sock_recvmsg) */ - if (pkt->ip_summed != CHECKSUM_UNNECESSARY) { - if ((unsigned short) - csum_fold(skb_checksum(pkt, 0, pkt->len, - pkt->csum))) { - kfree_skb(pkt); - rxrpc_krxiod_queue_transport(trans); - _leave(" CSUM failed"); - return; - } + if (skb_checksum_complete(pkt)) { + kfree_skb(pkt); + rxrpc_krxiod_queue_transport(trans); + _leave(" CSUM failed"); + return; } addr = pkt->nh.iph->saddr; |