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| author | KY Srinivasan <kys@microsoft.com> | 2014-04-30 11:58:25 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-30 16:12:23 -0400 |
| commit | 22041fb05b66387b2854f789d1e1f55c7d07b4f4 (patch) | |
| tree | d3ef29c7b3ff28c316691e4fcc2885eca9b50b49 /drivers/net/hyperv | |
| parent | 6ce29b0e2a04ea85617cd21099af67449a76f589 (diff) | |
| download | linux-22041fb05b66387b2854f789d1e1f55c7d07b4f4.tar.gz linux-22041fb05b66387b2854f789d1e1f55c7d07b4f4.tar.bz2 linux-22041fb05b66387b2854f789d1e1f55c7d07b4f4.zip | |
hyperv: Properly handle checksum offload
Do checksum offload only if the client of the driver wants checksum to be
offloaded.
In V1 version of this patch, I addressed comments from
Stephen Hemminger <stephen@networkplumber.org> and
Eric Dumazet <eric.dumazet@gmail.com>.
In this version of the patch I have addressed comments from
David Miller.
This patch fixes a bug that is exposed in gateway scenarios.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 31e55fba7cad..7918d5132c1f 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -382,6 +382,10 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) if (skb_is_gso(skb)) goto do_lso; + if ((skb->ip_summed == CHECKSUM_NONE) || + (skb->ip_summed == CHECKSUM_UNNECESSARY)) + goto do_send; + rndis_msg_size += NDIS_CSUM_PPI_SIZE; ppi = init_ppi_data(rndis_msg, NDIS_CSUM_PPI_SIZE, TCPIP_CHKSUM_PKTINFO); |