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path: root/drivers/net/ethernet/ibm/ibmveth.c
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Diffstat (limited to 'drivers/net/ethernet/ibm/ibmveth.c')
-rw-r--r--drivers/net/ethernet/ibm/ibmveth.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index fbece63395a8..a831f947ca8c 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1181,7 +1181,9 @@ map_failed:
1181 1181
1182static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt) 1182static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
1183{ 1183{
1184 struct tcphdr *tcph;
1184 int offset = 0; 1185 int offset = 0;
1186 int hdr_len;
1185 1187
1186 /* only TCP packets will be aggregated */ 1188 /* only TCP packets will be aggregated */
1187 if (skb->protocol == htons(ETH_P_IP)) { 1189 if (skb->protocol == htons(ETH_P_IP)) {
@@ -1208,14 +1210,20 @@ static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
1208 /* if mss is not set through Large Packet bit/mss in rx buffer, 1210 /* if mss is not set through Large Packet bit/mss in rx buffer,
1209 * expect that the mss will be written to the tcp header checksum. 1211 * expect that the mss will be written to the tcp header checksum.
1210 */ 1212 */
1213 tcph = (struct tcphdr *)(skb->data + offset);
1211 if (lrg_pkt) { 1214 if (lrg_pkt) {
1212 skb_shinfo(skb)->gso_size = mss; 1215 skb_shinfo(skb)->gso_size = mss;
1213 } else if (offset) { 1216 } else if (offset) {
1214 struct tcphdr *tcph = (struct tcphdr *)(skb->data + offset);
1215
1216 skb_shinfo(skb)->gso_size = ntohs(tcph->check); 1217 skb_shinfo(skb)->gso_size = ntohs(tcph->check);
1217 tcph->check = 0; 1218 tcph->check = 0;
1218 } 1219 }
1220
1221 if (skb_shinfo(skb)->gso_size) {
1222 hdr_len = offset + tcph->doff * 4;
1223 skb_shinfo(skb)->gso_segs =
1224 DIV_ROUND_UP(skb->len - hdr_len,
1225 skb_shinfo(skb)->gso_size);
1226 }
1219} 1227}
1220 1228
1221static int ibmveth_poll(struct napi_struct *napi, int budget) 1229static int ibmveth_poll(struct napi_struct *napi, int budget)