diff options
| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2012-01-24 19:47:21 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-01-25 16:53:10 -0500 |
| commit | 8bca5d1ebb8bf18187256845ba3aaff5fbc01934 (patch) | |
| tree | 632ac1df401ad84d8bc116ef297953ed20909b9c /drivers/net | |
| parent | net: fec: use module_platform_driver (diff) | |
| download | linux-dev-8bca5d1ebb8bf18187256845ba3aaff5fbc01934.tar.xz linux-dev-8bca5d1ebb8bf18187256845ba3aaff5fbc01934.zip | |
vmxnet3: cleanup tso headers manipulation
Use existing helpers to clarify skb headers manipulation.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_drv.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index de7fc345148a..be6aa353f6a1 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -816,27 +816,24 @@ vmxnet3_parse_and_copy_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, if (ctx->mss) { /* TSO */ ctx->eth_ip_hdr_size = skb_transport_offset(skb); - ctx->l4_hdr_size = ((struct tcphdr *) - skb_transport_header(skb))->doff * 4; + ctx->l4_hdr_size = tcp_hdrlen(skb); ctx->copy_size = ctx->eth_ip_hdr_size + ctx->l4_hdr_size; } else { if (skb->ip_summed == CHECKSUM_PARTIAL) { ctx->eth_ip_hdr_size = skb_checksum_start_offset(skb); if (ctx->ipv4) { - struct iphdr *iph = (struct iphdr *) - skb_network_header(skb); + const struct iphdr *iph = ip_hdr(skb); + if (iph->protocol == IPPROTO_TCP) - ctx->l4_hdr_size = ((struct tcphdr *) - skb_transport_header(skb))->doff * 4; + ctx->l4_hdr_size = tcp_hdrlen(skb); else if (iph->protocol == IPPROTO_UDP) /* * Use tcp header size so that bytes to * be copied are more than required by * the device. */ - ctx->l4_hdr_size = - sizeof(struct tcphdr); + ctx->l4_hdr_size = sizeof(struct tcphdr); else ctx->l4_hdr_size = 0; } else { @@ -881,14 +878,17 @@ static void vmxnet3_prepare_tso(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx) { - struct tcphdr *tcph = (struct tcphdr *)skb_transport_header(skb); + struct tcphdr *tcph = tcp_hdr(skb); + if (ctx->ipv4) { - struct iphdr *iph = (struct iphdr *)skb_network_header(skb); + struct iphdr *iph = ip_hdr(skb); + iph->check = 0; tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, IPPROTO_TCP, 0); } else { - struct ipv6hdr *iph = (struct ipv6hdr *)skb_network_header(skb); + struct ipv6hdr *iph = ipv6_hdr(skb); + tcph->check = ~csum_ipv6_magic(&iph->saddr, &iph->daddr, 0, IPPROTO_TCP, 0); } |