[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE

Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose
checksum still needs to be completed) and CHECKSUM_COMPLETE (for
incoming packets, device supplied full checksum).

Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index ffcb9fd..41e052f 100644 (file)
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -1912,7 +1912,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
                                skb->tail = skb->data + skb->len;
 #ifdef USE_CHECKSUM_HW
                                if (vcc->vpi == 0 && vcc->vci >= ATM_NOT_RSV_VCI) {
-                                       skb->ip_summed = CHECKSUM_HW;
+                                       skb->ip_summed = CHECKSUM_COMPLETE;
                                        skb->csum = TCP_CKSUM(skb->data,
                                                        he_vcc->pdu_len);
                                }

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 80e8ca0..29dede2 100644 (file)
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -2077,7 +2077,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
        vp->tx_ring[entry].next = 0;
 #if DO_ZEROCOPY
-       if (skb->ip_summed != CHECKSUM_HW)
+       if (skb->ip_summed != CHECKSUM_PARTIAL)
                        vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
        else
                        vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);

diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index 1428bb7..a48b211 100644 (file)
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -813,7 +813,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
 
                if (mss)
                        flags |= LargeSend | ((mss & MSSMask) << MSSShift);
-               else if (skb->ip_summed == CHECKSUM_HW) {
+               else if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        const struct iphdr *ip = skb->nh.iph;
                        if (ip->protocol == IPPROTO_TCP)
                                flags |= IPCS | TCPCS;
@@ -867,7 +867,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
                        if (mss)
                                ctrl |= LargeSend |
                                        ((mss & MSSMask) << MSSShift);
-                       else if (skb->ip_summed == CHECKSUM_HW) {
+                       else if (skb->ip_summed == CHECKSUM_PARTIAL) {
                                if (ip->protocol == IPPROTO_TCP)
                                        ctrl |= IPCS | TCPCS;
                                else if (ip->protocol == IPPROTO_UDP)
@@ -898,7 +898,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
                txd->addr = cpu_to_le64(first_mapping);
                wmb();
 
-               if (skb->ip_summed == CHECKSUM_HW) {
+               if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        if (ip->protocol == IPPROTO_TCP)
                                txd->opts1 = cpu_to_le32(first_eor | first_len |
                                                         FirstFrag | DescOwn |

diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c
index 1c01e9b..8265486 100644 (file)
--- a/drivers/net/acenic.c
+++ b/drivers/net/acenic.c
@@ -2040,7 +2040,7 @@ static void ace_rx_int(struct net_device *dev, u32 rxretprd, u32 rxretcsm)
                 */
                if (bd_flags & BD_FLG_TCP_UDP_SUM) {
                        skb->csum = htons(csum);
-                       skb->ip_summed = CHECKSUM_HW;
+                       skb->ip_summed = CHECKSUM_COMPLETE;
                } else {
                        skb->ip_summed = CHECKSUM_NONE;
                }
@@ -2511,7 +2511,7 @@ restart:
 
                mapping = ace_map_tx_skb(ap, skb, skb, idx);
                flagsize = (skb->len << 16) | (BD_FLG_END);
-               if (skb->ip_summed == CHECKSUM_HW)
+               if (skb->ip_summed == CHECKSUM_PARTIAL)
                        flagsize |= BD_FLG_TCP_UDP_SUM;
 #if ACENIC_DO_VLAN
                if (vlan_tx_tag_present(skb)) {
@@ -2534,7 +2534,7 @@ restart:
 
                mapping = ace_map_tx_skb(ap, skb, NULL, idx);
                flagsize = (skb_headlen(skb) << 16);
-               if (skb->ip_summed == CHECKSUM_HW)
+               if (skb->ip_summed == CHECKSUM_PARTIAL)
                        flagsize |= BD_FLG_TCP_UDP_SUM;
 #if ACENIC_DO_VLAN
                if (vlan_tx_tag_present(skb)) {
@@ -2560,7 +2560,7 @@ restart:
                                               PCI_DMA_TODEVICE);
 
                        flagsize = (frag->size << 16);
-                       if (skb->ip_summed == CHECKSUM_HW)
+                       if (skb->ip_summed == CHECKSUM_PARTIAL)
                                flagsize |= BD_FLG_TCP_UDP_SUM;
                        idx = (idx + 1) % ACE_TX_RING_ENTRIES(ap);
 

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 652eb05..7857b46 100644 (file)
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4423,7 +4423,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
        ring_prod = TX_RING_IDX(prod);
 
        vlan_tag_flags = 0;
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                vlan_tag_flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;
        }
 

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index a31544c..558fdb8 100644 (file)
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2167,7 +2167,7 @@ end_copy_pkt:
                        cas_page_unmap(addr);
        }
        skb->csum = ntohs(i ^ 0xffff);
-       skb->ip_summed = CHECKSUM_HW;
+       skb->ip_summed = CHECKSUM_COMPLETE;
        skb->protocol = eth_type_trans(skb, cp->dev);
        return len;
 }
@@ -2821,7 +2821,7 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring,
        }
 
        ctrl = 0;
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                u64 csum_start_off, csum_stuff_off;
 
                csum_start_off = (u64) (skb->h.raw - skb->data);

diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 61b3754..ddd0bdb 100644 (file)
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1470,9 +1470,9 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
                }
 
                if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
-                   skb->ip_summed == CHECKSUM_HW &&
+                   skb->ip_summed == CHECKSUM_PARTIAL &&
                    skb->nh.iph->protocol == IPPROTO_UDP)
-                       if (unlikely(skb_checksum_help(skb, 0))) {
+                       if (unlikely(skb_checksum_help(skb))) {
                                dev_kfree_skb_any(skb);
                                return NETDEV_TX_OK;
                        }
@@ -1495,11 +1495,11 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
                cpl = (struct cpl_tx_pkt *)__skb_push(skb, sizeof(*cpl));
                cpl->opcode = CPL_TX_PKT;
                cpl->ip_csum_dis = 1;    /* SW calculates IP csum */
-               cpl->l4_csum_dis = skb->ip_summed == CHECKSUM_HW ? 0 : 1;
+               cpl->l4_csum_dis = skb->ip_summed == CHECKSUM_PARTIAL ? 0 : 1;
                /* the length field isn't used so don't bother setting it */
 
-               st->tx_cso += (skb->ip_summed == CHECKSUM_HW);
-               sge->stats.tx_do_cksum += (skb->ip_summed == CHECKSUM_HW);
+               st->tx_cso += (skb->ip_summed == CHECKSUM_PARTIAL);
+               sge->stats.tx_do_cksum += (skb->ip_summed == CHECKSUM_PARTIAL);
                sge->stats.tx_reg_pkts++;
        }
        cpl->iff = dev->if_port;

diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index 402961e..b74e676 100644 (file)
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -611,7 +611,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev)
        txdesc = &np->tx_ring[entry];
 
 #if 0
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                txdesc->status |=
                    cpu_to_le64 (TCPChecksumEnable | UDPChecksumEnable |
                                 IPChecksumEnable);

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 98ef9f8..2ab9f96 100644 (file)
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2600,7 +2600,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
        unsigned int i;
        uint8_t css;
 
-       if (likely(skb->ip_summed == CHECKSUM_HW)) {
+       if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
                css = skb->h.raw - skb->data;
 
                i = tx_ring->next_to_use;
@@ -2927,11 +2927,11 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
        }
 
        /* reserve a descriptor for the offload context */
-       if ((mss) || (skb->ip_summed == CHECKSUM_HW))
+       if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
                count++;
        count++;
 #else
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_PARTIAL)
                count++;
 #endif
 
@@ -3608,7 +3608,7 @@ e1000_rx_checksum(struct e1000_adapter *adapter,
                 */
                csum = ntohl(csum ^ 0xFFFF);
                skb->csum = csum;
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_COMPLETE;
        }
        adapter->hw_csum_good++;
 }

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 11b8f1b..32cacf1 100644 (file)
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -1503,7 +1503,8 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
                tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
        else
 #endif
-       tx_flags_extra = (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0);
+       tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
+                        NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
 
        /* vlan tag */
        if (np->vlangrp && vlan_tx_tag_present(skb)) {

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index ebbbd6c..ba96091 100644 (file)
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -947,7 +947,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
        /* Set up checksumming */
        if (likely((dev->features & NETIF_F_IP_CSUM)
-                       && (CHECKSUM_HW == skb->ip_summed))) {
+                       && (CHECKSUM_PARTIAL == skb->ip_summed))) {
                fcb = gfar_add_fcb(skb, txbdp);
                status |= TXBD_TOE;
                gfar_tx_checksum(skb, fcb);

diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
index 409c6aa..763373a 100644 (file)
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -1648,7 +1648,7 @@ static int hamachi_rx(struct net_device *dev)
                                                * could do the pseudo myself and return
                                                * CHECKSUM_UNNECESSARY
                                                */
-                                               skb->ip_summed = CHECKSUM_HW;
+                                               skb->ip_summed = CHECKSUM_COMPLETE;
                                        }
                                }       
                        }

diff --git a/drivers/net/ibm_emac/ibm_emac_core.c b/drivers/net/ibm_emac/ibm_emac_core.c
index 82468e2..57e214d 100644 (file)
--- a/drivers/net/ibm_emac/ibm_emac_core.c
+++ b/drivers/net/ibm_emac/ibm_emac_core.c
@@ -1036,7 +1036,7 @@ static inline u16 emac_tx_csum(struct ocp_enet_private *dev,
                               struct sk_buff *skb)
 {
 #if defined(CONFIG_IBM_EMAC_TAH)
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                ++dev->stats.tx_packets_csum;
                return EMAC_TX_CTRL_TAH_CSUM;
        }

diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c
index 68d8af7..65f897d 100644 (file)
--- a/drivers/net/ioc3-eth.c
+++ b/drivers/net/ioc3-eth.c
@@ -1387,7 +1387,7 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev)
         * MAC header which should not be summed and the TCP/UDP pseudo headers
         * manually.
         */
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                int proto = ntohs(skb->nh.iph->protocol);
                unsigned int csoff;
                struct iphdr *ih = skb->nh.iph;

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 7bbd447..9405b44 100644 (file)
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1232,7 +1232,7 @@ ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
        unsigned int i;
        uint8_t css, cso;
 
-       if(likely(skb->ip_summed == CHECKSUM_HW)) {
+       if(likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
                css = skb->h.raw - skb->data;
                cso = (skb->h.raw + skb->csum) - skb->data;
 

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index eeab1df..38df58f 100644 (file)
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1147,7 +1147,7 @@ static void eth_tx_submit_descs_for_skb(struct mv643xx_private *mp,
        desc->byte_cnt = length;
        desc->buf_ptr = dma_map_single(NULL, skb->data, length, DMA_TO_DEVICE);
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                BUG_ON(skb->protocol != ETH_P_IP);
 
                cmd_sts |= ETH_GEN_TCP_UDP_CHECKSUM |

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 9bdd43a..9f16681 100644 (file)
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -930,7 +930,7 @@ static inline void myri10ge_vlan_ip_csum(struct sk_buff *skb, u16 hw_csum)
            (vh->h_vlan_encapsulated_proto == htons(ETH_P_IP) ||
             vh->h_vlan_encapsulated_proto == htons(ETH_P_IPV6))) {
                skb->csum = hw_csum;
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_COMPLETE;
        }
 }
 
@@ -973,7 +973,7 @@ myri10ge_rx_done(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx,
                if ((skb->protocol == ntohs(ETH_P_IP)) ||
                    (skb->protocol == ntohs(ETH_P_IPV6))) {
                        skb->csum = ntohs((u16) csum);
-                       skb->ip_summed = CHECKSUM_HW;
+                       skb->ip_summed = CHECKSUM_COMPLETE;
                } else
                        myri10ge_vlan_ip_csum(skb, ntohs((u16) csum));
        }
@@ -1897,13 +1897,13 @@ again:
        pseudo_hdr_offset = 0;
        odd_flag = 0;
        flags = (MXGEFW_FLAGS_NO_TSO | MXGEFW_FLAGS_FIRST);
-       if (likely(skb->ip_summed == CHECKSUM_HW)) {
+       if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
                cksum_offset = (skb->h.raw - skb->data);
                pseudo_hdr_offset = (skb->h.raw + skb->csum) - skb->data;
                /* If the headers are excessively large, then we must
                 * fall back to a software checksum */
                if (unlikely(cksum_offset > 255 || pseudo_hdr_offset > 127)) {
-                       if (skb_checksum_help(skb, 0))
+                       if (skb_checksum_help(skb))
                                goto drop;
                        cksum_offset = 0;
                        pseudo_hdr_offset = 0;

diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c
index 0e76859..5143f5d 100644 (file)
--- a/drivers/net/ns83820.c
+++ b/drivers/net/ns83820.c
@@ -1153,7 +1153,7 @@ again:
        if (!nr_frags)
                frag = NULL;
        extsts = 0;
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                extsts |= EXTSTS_IPPKT;
                if (IPPROTO_TCP == skb->nh.iph->protocol)
                        extsts |= EXTSTS_TCPPKT;

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 4c2f575..d9b960a 100644 (file)
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2169,7 +2169,7 @@ static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
                if (mss)
                        return LargeSend | ((mss & MSSMask) << MSSShift);
        }
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                const struct iphdr *ip = skb->nh.iph;
 
                if (ip->protocol == IPPROTO_TCP)

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index e72e0e0..5b3713f 100644 (file)
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -3893,7 +3893,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
                txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
        }
 #endif
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                txdp->Control_2 |=
                    (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN |
                     TXD_TX_CKO_UDP_EN);

diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index ee62845..eb3b351 100644 (file)
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -1559,7 +1559,7 @@ struct sk_buff    *pMessage)      /* pointer to send-message              */
        pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
        pTxd->pMBuf     = pMessage;
 
-       if (pMessage->ip_summed == CHECKSUM_HW) {
+       if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
                u16 hdrlen = pMessage->h.raw - pMessage->data;
                u16 offset = hdrlen + pMessage->csum;
 
@@ -1678,7 +1678,7 @@ struct sk_buff    *pMessage)      /* pointer to send-message              */
        /* 
        ** Does the HW need to evaluate checksum for TCP or UDP packets? 
        */
-       if (pMessage->ip_summed == CHECKSUM_HW) {
+       if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
                u16 hdrlen = pMessage->h.raw - pMessage->data;
                u16 offset = hdrlen + pMessage->csum;
 
@@ -2158,7 +2158,7 @@ rx_start:
 
 #ifdef USE_SK_RX_CHECKSUM
                pMsg->csum = pRxd->TcpSums & 0xffff;
-               pMsg->ip_summed = CHECKSUM_HW;
+               pMsg->ip_summed = CHECKSUM_COMPLETE;
 #else
                pMsg->ip_summed = CHECKSUM_NONE;
 #endif

diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index ad878df..b3d6fa3 100644 (file)
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2338,7 +2338,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
        td->dma_lo = map;
        td->dma_hi = map >> 32;
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                int offset = skb->h.raw - skb->data;
 
                /* This seems backwards, but it is what the sk98lin
@@ -2642,7 +2642,7 @@ static inline struct sk_buff *skge_rx_get(struct skge_port *skge,
        skb->dev = skge->netdev;
        if (skge->rx_csum) {
                skb->csum = csum;
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_COMPLETE;
        }
 
        skb->protocol = eth_type_trans(skb, skge->netdev);

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 933e87f..8e92566 100644 (file)
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1163,7 +1163,7 @@ static unsigned tx_le_req(const struct sk_buff *skb)
        if (skb_is_gso(skb))
                ++count;
 
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_PARTIAL)
                ++count;
 
        return count;
@@ -1272,7 +1272,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 #endif
 
        /* Handle TCP checksum offload */
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                u16 hdr = skb->h.raw - skb->data;
                u16 offset = hdr + skb->csum;
 
@@ -2000,7 +2000,7 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do)
 #endif
                case OP_RXCHKS:
                        skb = sky2->rx_ring[sky2->rx_next].skb;
-                       skb->ip_summed = CHECKSUM_HW;
+                       skb->ip_summed = CHECKSUM_COMPLETE;
                        skb->csum = le16_to_cpu(status);
                        break;
 

diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index c0a62b0..2607aa5 100644 (file)
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1230,7 +1230,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
        }
 
 #if defined(ZEROCOPY) && defined(HAS_BROKEN_FIRMWARE)
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                if (skb_padto(skb, (skb->len + PADDING_MASK) & ~PADDING_MASK))
                        return NETDEV_TX_OK;
        }
@@ -1252,7 +1252,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
                                status |= TxDescIntr;
                                np->reap_tx = 0;
                        }
-                       if (skb->ip_summed == CHECKSUM_HW) {
+                       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                                status |= TxCalTCP;
                                np->stats.tx_compressed++;
                        }
@@ -1499,7 +1499,7 @@ static int __netdev_rx(struct net_device *dev, int *quota)
                 * Until then, the printk stays. :-) -Ion
                 */
                else if (le16_to_cpu(desc->status2) & 0x0040) {
-                       skb->ip_summed = CHECKSUM_HW;
+                       skb->ip_summed = CHECKSUM_COMPLETE;
                        skb->csum = le16_to_cpu(desc->csum);
                        printk(KERN_DEBUG "%s: checksum_hw, status2 = %#x\n", dev->name, le16_to_cpu(desc->status2));
                }

diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index d7b1d18..b388651 100644 (file)
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -855,7 +855,7 @@ static int gem_rx(struct gem *gp, int work_to_do)
                }
 
                skb->csum = ntohs((status & RXDCTRL_TCPCSUM) ^ 0xffff);
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_COMPLETE;
                skb->protocol = eth_type_trans(skb, gp->dev);
 
                netif_receive_skb(skb);
@@ -1026,7 +1026,7 @@ static int gem_start_xmit(struct sk_buff *skb, struct net_device *dev)
        unsigned long flags;
 
        ctrl = 0;
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                u64 csum_start_off, csum_stuff_off;
 
                csum_start_off = (u64) (skb->h.raw - skb->data);

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index c6f5bc3..17981da 100644 (file)
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -1207,7 +1207,7 @@ static void happy_meal_transceiver_check(struct happy_meal *hp, void __iomem *tr
  * flags, thus:
  *
  *     skb->csum = rxd->rx_flags & 0xffff;
- *     skb->ip_summed = CHECKSUM_HW;
+ *     skb->ip_summed = CHECKSUM_COMPLETE;
  *
  * before sending off the skb to the protocols, and we are good as gold.
  */
@@ -2074,7 +2074,7 @@ static void happy_meal_rx(struct happy_meal *hp, struct net_device *dev)
 
                /* This card is _fucking_ hot... */
                skb->csum = ntohs(csum ^ 0xffff);
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_COMPLETE;
 
                RXD(("len=%d csum=%4x]", len, csum));
                skb->protocol = eth_type_trans(skb, dev);
@@ -2268,7 +2268,7 @@ static int happy_meal_start_xmit(struct sk_buff *skb, struct net_device *dev)
        u32 tx_flags;
 
        tx_flags = TXFLAG_OWN;
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                u32 csum_start_off, csum_stuff_off;
 
                csum_start_off = (u32) (skb->h.raw - skb->data);

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index eafabb2..6f5d3a3 100644 (file)
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -3851,11 +3851,11 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
                skb->h.th->check = 0;
 
        }
-       else if (skb->ip_summed == CHECKSUM_HW)
+       else if (skb->ip_summed == CHECKSUM_PARTIAL)
                base_flags |= TXD_FLAG_TCPUDP_CSUM;
 #else
        mss = 0;
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_PARTIAL)
                base_flags |= TXD_FLAG_TCPUDP_CSUM;
 #endif
 #if TG3_VLAN_TAG_USED
@@ -3981,7 +3981,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
 
        entry = tp->tx_prod;
        base_flags = 0;
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_PARTIAL)
                base_flags |= TXD_FLAG_TCPUDP_CSUM;
 #if TG3_TSO_SUPPORT != 0
        mss = 0;

diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index 4103c37..c6e601d 100644 (file)
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -830,7 +830,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
        first_txd->addrHi = (u64)((unsigned long) skb) >> 32;
        first_txd->processFlags = 0;
 
-       if(skb->ip_summed == CHECKSUM_HW) {
+       if(skb->ip_summed == CHECKSUM_PARTIAL) {
                /* The 3XP will figure out if this is UDP/TCP */
                first_txd->processFlags |= TYPHOON_TX_PF_TCP_CHKSUM;
                first_txd->processFlags |= TYPHOON_TX_PF_UDP_CHKSUM;

diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index ae97108..6654715 100644 (file)
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -1230,7 +1230,7 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev)
        rp->tx_skbuff[entry] = skb;
 
        if ((rp->quirks & rqRhineI) &&
-           (((unsigned long)skb->data & 3) || skb_shinfo(skb)->nr_frags != 0 || skb->ip_summed == CHECKSUM_HW)) {
+           (((unsigned long)skb->data & 3) || skb_shinfo(skb)->nr_frags != 0 || skb->ip_summed == CHECKSUM_PARTIAL)) {
                /* Must use alignment buffer. */
                if (skb->len > PKT_BUF_SZ) {
                        /* packet too long, drop it */

diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index aa9cd92..f1e0c74 100644 (file)
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -2002,7 +2002,7 @@ static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
         *      Handle hardware checksum
         */
        if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
-                                && (skb->ip_summed == CHECKSUM_HW)) {
+                                && (skb->ip_summed == CHECKSUM_PARTIAL)) {
                struct iphdr *ip = skb->nh.iph;
                if (ip->protocol == IPPROTO_TCP)
                        td_ptr->tdesc1.TCR |= TCR0_TCPCK;

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 50a4719..4f2c2b6 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -976,7 +976,7 @@ extern void         dev_mcast_init(void);
 extern int             netdev_max_backlog;
 extern int             weight_p;
 extern int             netdev_set_master(struct net_device *dev, struct net_device *master);
-extern int skb_checksum_help(struct sk_buff *skb, int inward);
+extern int skb_checksum_help(struct sk_buff *skb);
 extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features);
 #ifdef CONFIG_BUG
 extern void netdev_rx_csum_fault(struct net_device *dev);
@@ -1012,7 +1012,7 @@ static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)
 {
        return skb_is_gso(skb) &&
               (!skb_gso_ok(skb, dev->features) ||
-               unlikely(skb->ip_summed != CHECKSUM_HW));
+               unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
 }
 
 /* On bonding slaves other than the currently active slave, suppress

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 755e9cd..85577a4 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -34,8 +34,9 @@
 #define HAVE_ALIGNABLE_SKB     /* Ditto 8)                */
 
 #define CHECKSUM_NONE 0
-#define CHECKSUM_HW 1
+#define CHECKSUM_PARTIAL 1
 #define CHECKSUM_UNNECESSARY 2
+#define CHECKSUM_COMPLETE 3
 
 #define SKB_DATA_ALIGN(X)      (((X) + (SMP_CACHE_BYTES - 1)) & \
                                 ~(SMP_CACHE_BYTES - 1))
@@ -56,17 +57,17 @@
  *           Apparently with secret goal to sell you new device, when you
  *           will add new protocol to your host. F.e. IPv6. 8)
  *
- *     HW: the most generic way. Device supplied checksum of _all_
+ *     COMPLETE: the most generic way. Device supplied checksum of _all_
  *         the packet as seen by netif_rx in skb->csum.
  *         NOTE: Even if device supports only some protocols, but
- *         is able to produce some skb->csum, it MUST use HW,
+ *         is able to produce some skb->csum, it MUST use COMPLETE,
  *         not UNNECESSARY.
  *
  * B. Checksumming on output.
  *
  *     NONE: skb is checksummed by protocol or csum is not required.
  *
- *     HW: device is required to csum packet as seen by hard_start_xmit
+ *     PARTIAL: device is required to csum packet as seen by hard_start_xmit
  *     from skb->h.raw to the end and to record the checksum
  *     at skb->h.raw+skb->csum.
  *
@@ -1261,14 +1262,14 @@ static inline int skb_linearize_cow(struct sk_buff *skb)
  *     @len: length of data pulled
  *
  *     After doing a pull on a received packet, you need to call this to
- *     update the CHECKSUM_HW checksum, or set ip_summed to CHECKSUM_NONE
- *     so that it can be recomputed from scratch.
+ *     update the CHECKSUM_COMPLETE checksum, or set ip_summed to
+ *     CHECKSUM_NONE so that it can be recomputed from scratch.
  */
 
 static inline void skb_postpull_rcsum(struct sk_buff *skb,
                                      const void *start, unsigned int len)
 {
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                skb->csum = csum_sub(skb->csum, csum_partial(start, len, 0));
 }
 
@@ -1287,7 +1288,7 @@ static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)
 {
        if (likely(len >= skb->len))
                return 0;
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                skb->ip_summed = CHECKSUM_NONE;
        return __pskb_trim(skb, len);
 }

diff --git a/net/core/datagram.c b/net/core/datagram.c
index aecddcc..f558c61 100644 (file)
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -417,7 +417,7 @@ unsigned int __skb_checksum_complete(struct sk_buff *skb)
 
        sum = (u16)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
        if (likely(!sum)) {
-               if (unlikely(skb->ip_summed == CHECKSUM_HW))
+               if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
                        netdev_rx_csum_fault(skb->dev);
                skb->ip_summed = CHECKSUM_UNNECESSARY;
        }
@@ -462,7 +462,7 @@ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
                        goto fault;
                if ((unsigned short)csum_fold(csum))
                        goto csum_error;
-               if (unlikely(skb->ip_summed == CHECKSUM_HW))
+               if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
                        netdev_rx_csum_fault(skb->dev);
                iov->iov_len -= chunk;
                iov->iov_base += chunk;

diff --git a/net/core/dev.c b/net/core/dev.c
index d4a1ec3..fc82f6f 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1166,12 +1166,12 @@ EXPORT_SYMBOL(netif_device_attach);
  * Invalidate hardware checksum when packet is to be mangled, and
  * complete checksum manually on outgoing path.
  */
-int skb_checksum_help(struct sk_buff *skb, int inward)
+int skb_checksum_help(struct sk_buff *skb)
 {
        unsigned int csum;
        int ret = 0, offset = skb->h.raw - skb->data;
 
-       if (inward)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                goto out_set_summed;
 
        if (unlikely(skb_shinfo(skb)->gso_size)) {
@@ -1223,7 +1223,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
        skb->mac_len = skb->nh.raw - skb->data;
        __skb_pull(skb, skb->mac_len);
 
-       if (unlikely(skb->ip_summed != CHECKSUM_HW)) {
+       if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
                if (skb_header_cloned(skb) &&
                    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
                        return ERR_PTR(err);
@@ -1232,7 +1232,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
        rcu_read_lock();
        list_for_each_entry_rcu(ptype, &ptype_base[ntohs(type) & 15], list) {
                if (ptype->type == type && !ptype->dev && ptype->gso_segment) {
-                       if (unlikely(skb->ip_summed != CHECKSUM_HW)) {
+                       if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
                                err = ptype->gso_send_check(skb);
                                segs = ERR_PTR(err);
                                if (err || skb_gso_ok(skb, features))
@@ -1444,11 +1444,11 @@ int dev_queue_xmit(struct sk_buff *skb)
        /* If packet is not checksummed and device does not support
         * checksumming for this protocol, complete checksumming here.
         */
-       if (skb->ip_summed == CHECKSUM_HW &&
+       if (skb->ip_summed == CHECKSUM_PARTIAL &&
            (!(dev->features & NETIF_F_GEN_CSUM) &&
             (!(dev->features & NETIF_F_IP_CSUM) ||
              skb->protocol != htons(ETH_P_IP))))
-               if (skb_checksum_help(skb, 0))
+               if (skb_checksum_help(skb))
                        goto out_kfree_skb;
 
 gso:

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 471da45..ead5920 100644 (file)
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -110,7 +110,7 @@ static int checksum_udp(struct sk_buff *skb, struct udphdr *uh,
 
        psum = csum_tcpudp_nofold(saddr, daddr, ulen, IPPROTO_UDP, 0);
 
-       if (skb->ip_summed == CHECKSUM_HW &&
+       if (skb->ip_summed == CHECKSUM_COMPLETE &&
            !(u16)csum_fold(csum_add(psum, skb->csum)))
                return 0;
 

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c54f366..8a476f1 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1397,7 +1397,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
        unsigned int csum;
        long csstart;
 
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_PARTIAL)
                csstart = skb->h.raw - skb->data;
        else
                csstart = skb_headlen(skb);
@@ -1411,7 +1411,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
                csum = skb_copy_and_csum_bits(skb, csstart, to + csstart,
                                              skb->len - csstart, 0);
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                long csstuff = csstart + skb->csum;
 
                *((unsigned short *)(to + csstuff)) = csum_fold(csum);
@@ -1898,10 +1898,10 @@ int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
  *     @len: length of data pulled
  *
  *     This function performs an skb_pull on the packet and updates
- *     update the CHECKSUM_HW checksum.  It should be used on receive
- *     path processing instead of skb_pull unless you know that the
- *     checksum difference is zero (e.g., a valid IP header) or you
- *     are setting ip_summed to CHECKSUM_NONE.
+ *     update the CHECKSUM_COMPLETE checksum.  It should be used on
+ *     receive path processing instead of skb_pull unless you know
+ *     that the checksum difference is zero (e.g., a valid IP header)
+ *     or you are setting ip_summed to CHECKSUM_NONE.
  */
 unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len)
 {
@@ -1994,7 +1994,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
                frag = skb_shinfo(nskb)->frags;
                k = 0;
 
-               nskb->ip_summed = CHECKSUM_HW;
+               nskb->ip_summed = CHECKSUM_PARTIAL;
                nskb->csum = skb->csum;
                memcpy(skb_put(nskb, hsize), skb->data + offset, hsize);
 

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 6ad797c..6d223e5 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -930,7 +930,7 @@ int icmp_rcv(struct sk_buff *skb)
        ICMP_INC_STATS_BH(ICMP_MIB_INMSGS);
 
        switch (skb->ip_summed) {
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (!(u16)csum_fold(skb->csum))
                        break;
                /* fall through */

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 8e8117c..7003e76 100644 (file)
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -931,7 +931,7 @@ int igmp_rcv(struct sk_buff *skb)
                goto drop;
 
        switch (skb->ip_summed) {
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (!(u16)csum_fold(skb->csum))
                        break;
                /* fall through */

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index b84b53a..8d7f107 100644 (file)
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -665,7 +665,7 @@ static struct sk_buff *ip_frag_reasm(struct ipq *qp, struct net_device *dev)
                head->len += fp->len;
                if (head->ip_summed != fp->ip_summed)
                        head->ip_summed = CHECKSUM_NONE;
-               else if (head->ip_summed == CHECKSUM_HW)
+               else if (head->ip_summed == CHECKSUM_COMPLETE)
                        head->csum = csum_add(head->csum, fp->csum);
                head->truesize += fp->truesize;
                atomic_sub(fp->truesize, &ip_frag_mem);

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 0f9b3a3..e66f6ff 100644 (file)
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -576,7 +576,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 
                if (flags&GRE_CSUM) {
                        switch (skb->ip_summed) {
-                       case CHECKSUM_HW:
+                       case CHECKSUM_COMPLETE:
                                csum = (u16)csum_fold(skb->csum);
                                if (!csum)
                                        break;
@@ -584,7 +584,7 @@ static int ipgre_rcv(struct sk_buff *skb)
                        case CHECKSUM_NONE:
                                skb->csum = 0;
                                csum = __skb_checksum_complete(skb);
-                               skb->ip_summed = CHECKSUM_HW;
+                               skb->ip_summed = CHECKSUM_COMPLETE;
                        }
                        offset += 4;
                }

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 308bdea..1b9b674 100644 (file)
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -680,7 +680,7 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk
 {
        struct iovec *iov = from;
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                if (memcpy_fromiovecend(to, iov, offset, len) < 0)
                        return -EFAULT;
        } else {
@@ -736,7 +736,7 @@ static inline int ip_ufo_append_data(struct sock *sk,
                /* initialize protocol header pointer */
                skb->h.raw = skb->data + fragheaderlen;
 
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_PARTIAL;
                skb->csum = 0;
                sk->sk_sndmsg_off = 0;
        }
@@ -844,7 +844,7 @@ int ip_append_data(struct sock *sk,
            length + fragheaderlen <= mtu &&
            rt->u.dst.dev->features & NETIF_F_ALL_CSUM &&
            !exthdrlen)
-               csummode = CHECKSUM_HW;
+               csummode = CHECKSUM_PARTIAL;
 
        inet->cork.length += length;
        if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&

diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c
index bc28b11..820e831 100644 (file)
--- a/net/ipv4/ipvs/ip_vs_proto_tcp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c
@@ -151,7 +151,7 @@ tcp_snat_handler(struct sk_buff **pskb,
                /* Only port and addr are changed, do fast csum update */
                tcp_fast_csum_update(tcph, cp->daddr, cp->vaddr,
                                     cp->dport, cp->vport);
-               if ((*pskb)->ip_summed == CHECKSUM_HW)
+               if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
                        (*pskb)->ip_summed = CHECKSUM_NONE;
        } else {
                /* full checksum calculation */
@@ -204,7 +204,7 @@ tcp_dnat_handler(struct sk_buff **pskb,
                /* Only port and addr are changed, do fast csum update */
                tcp_fast_csum_update(tcph, cp->vaddr, cp->daddr,
                                     cp->vport, cp->dport);
-               if ((*pskb)->ip_summed == CHECKSUM_HW)
+               if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
                        (*pskb)->ip_summed = CHECKSUM_NONE;
        } else {
                /* full checksum calculation */
@@ -229,7 +229,7 @@ tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
        switch (skb->ip_summed) {
        case CHECKSUM_NONE:
                skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
                                      skb->len - tcphoff,
                                      skb->nh.iph->protocol, skb->csum)) {
@@ -239,7 +239,7 @@ tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
                }
                break;
        default:
-               /* CHECKSUM_UNNECESSARY */
+               /* No need to checksum. */
                break;
        }
 

diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index 89d9175..90c8166 100644 (file)
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -161,7 +161,7 @@ udp_snat_handler(struct sk_buff **pskb,
                /* Only port and addr are changed, do fast csum update */
                udp_fast_csum_update(udph, cp->daddr, cp->vaddr,
                                     cp->dport, cp->vport);
-               if ((*pskb)->ip_summed == CHECKSUM_HW)
+               if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
                        (*pskb)->ip_summed = CHECKSUM_NONE;
        } else {
                /* full checksum calculation */
@@ -216,7 +216,7 @@ udp_dnat_handler(struct sk_buff **pskb,
                /* Only port and addr are changed, do fast csum update */
                udp_fast_csum_update(udph, cp->vaddr, cp->daddr,
                                     cp->vport, cp->dport);
-               if ((*pskb)->ip_summed == CHECKSUM_HW)
+               if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
                        (*pskb)->ip_summed = CHECKSUM_NONE;
        } else {
                /* full checksum calculation */
@@ -250,7 +250,7 @@ udp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
                case CHECKSUM_NONE:
                        skb->csum = skb_checksum(skb, udphoff,
                                                 skb->len - udphoff, 0);
-               case CHECKSUM_HW:
+               case CHECKSUM_COMPLETE:
                        if (csum_tcpudp_magic(skb->nh.iph->saddr,
                                              skb->nh.iph->daddr,
                                              skb->len - udphoff,
@@ -262,7 +262,7 @@ udp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
                        }
                        break;
                default:
-                       /* CHECKSUM_UNNECESSARY */
+                       /* No need to checksum. */
                        break;
                }
        }

diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 6a9e34b..f88347d 100644 (file)
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -168,7 +168,7 @@ unsigned int nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
        unsigned int csum = 0;
 
        switch (skb->ip_summed) {
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (hook != NF_IP_PRE_ROUTING && hook != NF_IP_LOCAL_IN)
                        break;
                if ((protocol == 0 && !(u16)csum_fold(skb->csum)) ||

diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
index fb920e7..9de81ff 100644 (file)
--- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
@@ -865,8 +865,7 @@ static int tcp_error(struct sk_buff *skb,
   
        /* Checksum invalid? Ignore.
         * We skip checking packets on the outgoing path
-        * because the semantic of CHECKSUM_HW is different there 
-        * and moreover root might send raw packets.
+        * because it is assumed to be correct.
         */
        /* FIXME: Source route IP option packets --RR */
        if (ip_conntrack_checksum && hooknum == NF_IP_PRE_ROUTING &&

diff --git a/net/ipv4/netfilter/ip_conntrack_proto_udp.c b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
index 9b2c16b..e58e52f 100644 (file)
--- a/net/ipv4/netfilter/ip_conntrack_proto_udp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
@@ -117,8 +117,7 @@ static int udp_error(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
 
        /* Checksum invalid? Ignore.
         * We skip checking packets on the outgoing path
-        * because the semantic of CHECKSUM_HW is different there 
-        * and moreover root might send raw packets.
+        * because the checksum is assumed to be correct.
         * FIXME: Source route IP option packets --RR */
        if (ip_conntrack_checksum && hooknum == NF_IP_PRE_ROUTING &&
            nf_ip_checksum(skb, hooknum, iph->ihl * 4, IPPROTO_UDP)) {

diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 17de077..f4f00c8 100644 (file)
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/net/ipv4/netfilter/ip_nat_standalone.c
@@ -111,8 +111,9 @@ ip_nat_fn(unsigned int hooknum,
                       & htons(IP_MF|IP_OFFSET)));
 
        /* If we had a hardware checksum before, it's now invalid */
-       if ((*pskb)->ip_summed == CHECKSUM_HW)
-               if (skb_checksum_help(*pskb, (out == NULL)))
+       if ((*pskb)->ip_summed == CHECKSUM_PARTIAL ||
+           (*pskb)->ip_summed == CHECKSUM_COMPLETE)
+               if (skb_checksum_help(*pskb))
                        return NF_DROP;
 
        ct = ip_conntrack_get(*pskb, &ctinfo);

diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 198ac36..276a964 100644 (file)
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -208,9 +208,9 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
                break;
        
        case IPQ_COPY_PACKET:
-               if (entry->skb->ip_summed == CHECKSUM_HW &&
-                   (*errp = skb_checksum_help(entry->skb,
-                                              entry->info->outdev == NULL))) {
+               if ((entry->skb->ip_summed == CHECKSUM_PARTIAL ||
+                    entry->skb->ip_summed == CHECKSUM_COMPLETE) &&
+                   (*errp = skb_checksum_help(entry->skb))) {
                        read_unlock_bh(&queue_lock);
                        return NULL;
                }

diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index 4adf5c9..4ec43f9 100644 (file)
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/net/ipv4/netfilter/ipt_ECN.c
@@ -49,7 +49,7 @@ set_ect_ip(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
 
 /* Return 0 if there was an error. */
 static inline int
-set_ect_tcp(struct sk_buff **pskb, const struct ipt_ECN_info *einfo, int inward)
+set_ect_tcp(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
 {
        struct tcphdr _tcph, *tcph;
        u_int16_t diffs[2];
@@ -70,8 +70,9 @@ set_ect_tcp(struct sk_buff **pskb, const struct ipt_ECN_info *einfo, int inward)
                return 0;
        tcph = (void *)(*pskb)->nh.iph + (*pskb)->nh.iph->ihl*4;
 
-       if ((*pskb)->ip_summed == CHECKSUM_HW &&
-           skb_checksum_help(*pskb, inward))
+       if (((*pskb)->ip_summed == CHECKSUM_PARTIAL ||
+            (*pskb)->ip_summed == CHECKSUM_COMPLETE) &&
+           skb_checksum_help(*pskb))
                return 0;
 
        diffs[0] = ((u_int16_t *)tcph)[6];
@@ -106,7 +107,7 @@ target(struct sk_buff **pskb,
 
        if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR)
            && (*pskb)->nh.iph->protocol == IPPROTO_TCP)
-               if (!set_ect_tcp(pskb, einfo, (out == NULL)))
+               if (!set_ect_tcp(pskb, einfo))
                        return NF_DROP;
 
        return IPT_CONTINUE;

diff --git a/net/ipv4/netfilter/ipt_TCPMSS.c b/net/ipv4/netfilter/ipt_TCPMSS.c
index ef2fe5b..c998dc0 100644 (file)
--- a/net/ipv4/netfilter/ipt_TCPMSS.c
+++ b/net/ipv4/netfilter/ipt_TCPMSS.c
@@ -62,8 +62,9 @@ ipt_tcpmss_target(struct sk_buff **pskb,
        if (!skb_make_writable(pskb, (*pskb)->len))
                return NF_DROP;
 
-       if ((*pskb)->ip_summed == CHECKSUM_HW &&
-           skb_checksum_help(*pskb, out == NULL))
+       if (((*pskb)->ip_summed == CHECKSUM_PARTIAL ||
+            (*pskb)->ip_summed == CHECKSUM_COMPLETE) &&
+           skb_checksum_help(*pskb))
                return NF_DROP;
 
        iph = (*pskb)->nh.iph;

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 934396b..b0124e6 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -568,7 +568,7 @@ new_segment:
                skb->truesize += copy;
                sk->sk_wmem_queued += copy;
                sk->sk_forward_alloc -= copy;
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_PARTIAL;
                tp->write_seq += copy;
                TCP_SKB_CB(skb)->end_seq += copy;
                skb_shinfo(skb)->gso_segs = 0;
@@ -723,7 +723,7 @@ new_segment:
                                 * Check whether we can use HW checksum.
                                 */
                                if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
-                                       skb->ip_summed = CHECKSUM_HW;
+                                       skb->ip_summed = CHECKSUM_PARTIAL;
 
                                skb_entail(sk, tp, skb);
                                copy = size_goal;
@@ -2205,7 +2205,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
                th->fin = th->psh = 0;
 
                th->check = ~csum_fold(th->check + delta);
-               if (skb->ip_summed != CHECKSUM_HW)
+               if (skb->ip_summed != CHECKSUM_PARTIAL)
                        th->check = csum_fold(csum_partial(skb->h.raw, thlen,
                                                           skb->csum));
 
@@ -2219,7 +2219,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
 
        delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len);
        th->check = ~csum_fold(th->check + delta);
-       if (skb->ip_summed != CHECKSUM_HW)
+       if (skb->ip_summed != CHECKSUM_PARTIAL)
                th->check = csum_fold(csum_partial(skb->h.raw, thlen,
                                                   skb->csum));
 

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 43f6740..b2aa512 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -484,7 +484,7 @@ void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
        struct inet_sock *inet = inet_sk(sk);
        struct tcphdr *th = skb->h.th;
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                th->check = ~tcp_v4_check(th, len, inet->saddr, inet->daddr, 0);
                skb->csum = offsetof(struct tcphdr, check);
        } else {
@@ -509,7 +509,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb)
        th->check = 0;
        th->check = ~tcp_v4_check(th, skb->len, iph->saddr, iph->daddr, 0);
        skb->csum = offsetof(struct tcphdr, check);
-       skb->ip_summed = CHECKSUM_HW;
+       skb->ip_summed = CHECKSUM_PARTIAL;
        return 0;
 }
 
@@ -973,7 +973,7 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
 
 static int tcp_v4_checksum_init(struct sk_buff *skb)
 {
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_COMPLETE) {
                if (!tcp_v4_check(skb->h.th, skb->len, skb->nh.iph->saddr,
                                  skb->nh.iph->daddr, skb->csum)) {
                        skb->ip_summed = CHECKSUM_UNNECESSARY;

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b4f3ffe..9252a50 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -577,7 +577,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
        TCP_SKB_CB(buff)->sacked = TCP_SKB_CB(skb)->sacked;
        TCP_SKB_CB(skb)->sacked &= ~TCPCB_AT_TAIL;
 
-       if (!skb_shinfo(skb)->nr_frags && skb->ip_summed != CHECKSUM_HW) {
+       if (!skb_shinfo(skb)->nr_frags && skb->ip_summed != CHECKSUM_PARTIAL) {
                /* Copy and checksum data tail into the new buffer. */
                buff->csum = csum_partial_copy_nocheck(skb->data + len, skb_put(buff, nsize),
                                                       nsize, 0);
@@ -586,7 +586,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
 
                skb->csum = csum_block_sub(skb->csum, buff->csum, len);
        } else {
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_PARTIAL;
                skb_split(skb, buff, len);
        }
 
@@ -689,7 +689,7 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
                __pskb_trim_head(skb, len - skb_headlen(skb));
 
        TCP_SKB_CB(skb)->seq += len;
-       skb->ip_summed = CHECKSUM_HW;
+       skb->ip_summed = CHECKSUM_PARTIAL;
 
        skb->truesize        -= len;
        sk->sk_wmem_queued   -= len;
@@ -1062,7 +1062,7 @@ static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
        /* This packet was never sent out yet, so no SACK bits. */
        TCP_SKB_CB(buff)->sacked = 0;
 
-       buff->ip_summed = skb->ip_summed = CHECKSUM_HW;
+       buff->ip_summed = skb->ip_summed = CHECKSUM_PARTIAL;
        skb_split(skb, buff, len);
 
        /* Fix up tso_factor for both original and new SKB.  */
@@ -1206,8 +1206,7 @@ static int tcp_mtu_probe(struct sock *sk)
        TCP_SKB_CB(nskb)->flags = TCPCB_FLAG_ACK;
        TCP_SKB_CB(nskb)->sacked = 0;
        nskb->csum = 0;
-       if (skb->ip_summed == CHECKSUM_HW)
-               nskb->ip_summed = CHECKSUM_HW;
+       nskb->ip_summed = skb->ip_summed;
 
        len = 0;
        while (len < probe_size) {
@@ -1231,7 +1230,7 @@ static int tcp_mtu_probe(struct sock *sk)
                                                   ~(TCPCB_FLAG_FIN|TCPCB_FLAG_PSH);
                        if (!skb_shinfo(skb)->nr_frags) {
                                skb_pull(skb, copy);
-                               if (skb->ip_summed != CHECKSUM_HW)
+                               if (skb->ip_summed != CHECKSUM_PARTIAL)
                                        skb->csum = csum_partial(skb->data, skb->len, 0);
                        } else {
                                __pskb_trim_head(skb, copy);
@@ -1572,10 +1571,9 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *skb, int m
 
                memcpy(skb_put(skb, next_skb_size), next_skb->data, next_skb_size);
 
-               if (next_skb->ip_summed == CHECKSUM_HW)
-                       skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = next_skb->ip_summed;
 
-               if (skb->ip_summed != CHECKSUM_HW)
+               if (skb->ip_summed != CHECKSUM_PARTIAL)
                        skb->csum = csum_block_add(skb->csum, next_skb->csum, skb_size);
 
                /* Update sequence range on original skb. */

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index a4d005e..8715251 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -429,7 +429,7 @@ static int udp_push_pending_frames(struct sock *sk, struct udp_sock *up)
                /*
                 * Only one fragment on the socket.
                 */
-               if (skb->ip_summed == CHECKSUM_HW) {
+               if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        skb->csum = offsetof(struct udphdr, check);
                        uh->check = ~csum_tcpudp_magic(fl->fl4_src, fl->fl4_dst,
                                        up->len, IPPROTO_UDP, 0);
@@ -448,7 +448,7 @@ static int udp_push_pending_frames(struct sock *sk, struct udp_sock *up)
                 * fragments on the socket so that all csums of sk_buffs
                 * should be together.
                 */
-               if (skb->ip_summed == CHECKSUM_HW) {
+               if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        int offset = (unsigned char *)uh - skb->data;
                        skb->csum = skb_checksum(skb, offset, skb->len - offset, 0);
 
@@ -1088,7 +1088,7 @@ static void udp_checksum_init(struct sk_buff *skb, struct udphdr *uh,
 {
        if (uh->check == 0) {
                skb->ip_summed = CHECKSUM_UNNECESSARY;
-       } else if (skb->ip_summed == CHECKSUM_HW) {
+       } else if (skb->ip_summed == CHECKSUM_COMPLETE) {
                if (!udp_check(uh, ulen, saddr, daddr, skb->csum))
                        skb->ip_summed = CHECKSUM_UNNECESSARY;
        }

diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index d16f863..4a96a9e 100644 (file)
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -48,8 +48,8 @@ static int xfrm4_output_one(struct sk_buff *skb)
        struct xfrm_state *x = dst->xfrm;
        int err;
        
-       if (skb->ip_summed == CHECKSUM_HW) {
-               err = skb_checksum_help(skb, 0);
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
+               err = skb_checksum_help(skb);
                if (err)
                        goto error_nolock;
        }

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 86dac10..05afa6b 100644 (file)
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -294,7 +294,7 @@ looped_back:
                hdr = (struct ipv6_rt_hdr *) skb2->h.raw;
        }
 
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                skb->ip_summed = CHECKSUM_NONE;
 
        i = n - --hdr->segments_left;

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index dbfce08..1030551 100644 (file)
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -606,7 +606,7 @@ static int icmpv6_rcv(struct sk_buff **pskb)
 
        /* Perform checksum. */
        switch (skb->ip_summed) {
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (!csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
                                     skb->csum))
                        break;

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4fb47a2..65514f2 100644 (file)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -866,7 +866,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
                /* initialize protocol header pointer */
                skb->h.raw = skb->data + fragheaderlen;
 
-               skb->ip_summed = CHECKSUM_HW;
+               skb->ip_summed = CHECKSUM_PARTIAL;
                skb->csum = 0;
                sk->sk_sndmsg_off = 0;
        }

diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 395a417..580b1ab 100644 (file)
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -87,7 +87,7 @@ unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
        unsigned int csum = 0;
 
        switch (skb->ip_summed) {
-       case CHECKSUM_HW:
+       case CHECKSUM_COMPLETE:
                if (hook != NF_IP6_PRE_ROUTING && hook != NF_IP6_LOCAL_IN)
                        break;
                if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,

diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 968a14b..c01c126 100644 (file)
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -206,9 +206,9 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
                break;
        
        case IPQ_COPY_PACKET:
-               if (entry->skb->ip_summed == CHECKSUM_HW &&
-                   (*errp = skb_checksum_help(entry->skb,
-                                              entry->info->outdev == NULL))) {
+               if ((entry->skb->ip_summed == CHECKSUM_PARTIAL ||
+                    entry->skb->ip_summed == CHECKSUM_COMPLETE) &&
+                   (*errp = skb_checksum_help(entry->skb))) {
                        read_unlock_bh(&queue_lock);
                        return NULL;
                }

diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 00d5583..7a4e4c2 100644 (file)
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -408,7 +408,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
                return -1;
        }
 
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                skb->csum = csum_sub(skb->csum,
                                     csum_partial(skb->nh.raw,
                                                  (u8*)(fhdr + 1) - skb->nh.raw,
@@ -640,7 +640,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
                head->len += fp->len;
                if (head->ip_summed != fp->ip_summed)
                        head->ip_summed = CHECKSUM_NONE;
-               else if (head->ip_summed == CHECKSUM_HW)
+               else if (head->ip_summed == CHECKSUM_COMPLETE)
                        head->csum = csum_add(head->csum, fp->csum);
                head->truesize += fp->truesize;
                atomic_sub(fp->truesize, &nf_ct_frag6_mem);
@@ -652,7 +652,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
        head->nh.ipv6h->payload_len = htons(payload_len);
 
        /* Yes, and fold redundant checksum back. 8) */
-       if (head->ip_summed == CHECKSUM_HW)
+       if (head->ip_summed == CHECKSUM_COMPLETE)
                head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
 
        fq->fragments = NULL;

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d5040e1..d4af1cb 100644 (file)
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -334,7 +334,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
        if (!rp->checksum)
                skb->ip_summed = CHECKSUM_UNNECESSARY;
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_COMPLETE) {
                skb_postpull_rcsum(skb, skb->nh.raw,
                                   skb->h.raw - skb->nh.raw);
                if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 4e299c6..a8623d2 100644 (file)
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -433,7 +433,7 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
                return;
        }
 
-       if (skb->ip_summed == CHECKSUM_HW)
+       if (skb->ip_summed == CHECKSUM_COMPLETE)
                skb->csum = csum_sub(skb->csum,
                                     csum_partial(skb->nh.raw, (u8*)(fhdr+1)-skb->nh.raw, 0));
 
@@ -647,7 +647,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
                head->len += fp->len;
                if (head->ip_summed != fp->ip_summed)
                        head->ip_summed = CHECKSUM_NONE;
-               else if (head->ip_summed == CHECKSUM_HW)
+               else if (head->ip_summed == CHECKSUM_COMPLETE)
                        head->csum = csum_add(head->csum, fp->csum);
                head->truesize += fp->truesize;
                atomic_sub(fp->truesize, &ip6_frag_mem);
@@ -662,7 +662,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
        *skb_in = head;
 
        /* Yes, and fold redundant checksum back. 8) */
-       if (head->ip_summed == CHECKSUM_HW)
+       if (head->ip_summed == CHECKSUM_COMPLETE)
                head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
 
        IP6_INC_STATS_BH(IPSTATS_MIB_REASMOKS);

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 302786a..7f1b660 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -545,7 +545,7 @@ static void tcp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb)
        struct ipv6_pinfo *np = inet6_sk(sk);
        struct tcphdr *th = skb->h.th;
 
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
                th->check = ~csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP,  0);
                skb->csum = offsetof(struct tcphdr, check);
        } else {
@@ -570,7 +570,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb)
        th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
                                     IPPROTO_TCP, 0);
        skb->csum = offsetof(struct tcphdr, check);
-       skb->ip_summed = CHECKSUM_HW;
+       skb->ip_summed = CHECKSUM_PARTIAL;
        return 0;
 }
 
@@ -1033,7 +1033,7 @@ out:
 
 static int tcp_v6_checksum_init(struct sk_buff *skb)
 {
-       if (skb->ip_summed == CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_COMPLETE) {
                if (!tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
                                  &skb->nh.ipv6h->daddr,skb->csum)) {
                        skb->ip_summed = CHECKSUM_UNNECESSARY;

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 82c7c9c..780b89f 100644 (file)
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -475,7 +475,7 @@ static int udpv6_rcv(struct sk_buff **pskb)
                uh = skb->h.uh;
        }
 
-       if (skb->ip_summed == CHECKSUM_HW &&
+       if (skb->ip_summed == CHECKSUM_COMPLETE &&
            !csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum))
                skb->ip_summed = CHECKSUM_UNNECESSARY;
 

diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index c8c8b44..6d11174 100644 (file)
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -41,8 +41,8 @@ static int xfrm6_output_one(struct sk_buff *skb)
        struct xfrm_state *x = dst->xfrm;
        int err;
        
-       if (skb->ip_summed == CHECKSUM_HW) {
-               err = skb_checksum_help(skb, 0);
+       if (skb->ip_summed == CHECKSUM_PARTIAL) {
+               err = skb_checksum_help(skb);
                if (err)
                        goto error_nolock;
        }

diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index af8adcb..308d2ab 100644 (file)
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -823,8 +823,7 @@ static int tcp_error(struct sk_buff *skb,
   
        /* Checksum invalid? Ignore.
         * We skip checking packets on the outgoing path
-        * because the semantic of CHECKSUM_HW is different there 
-        * and moreover root might send raw packets.
+        * because the checksum is assumed to be correct.
         */
        /* FIXME: Source route IP option packets --RR */
        if (nf_conntrack_checksum &&

diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index ae07ebe..d36e031 100644 (file)
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -131,8 +131,7 @@ static int udp_error(struct sk_buff *skb, unsigned int dataoff,
 
        /* Checksum invalid? Ignore.
         * We skip checking packets on the outgoing path
-        * because the semantic of CHECKSUM_HW is different there
-        * and moreover root might send raw packets.
+        * because the checksum is assumed to be correct.
         * FIXME: Source route IP option packets --RR */
        if (nf_conntrack_checksum &&
            ((pf == PF_INET && hooknum == NF_IP_PRE_ROUTING) ||

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 49ef41e..eddfbe4 100644 (file)
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -377,9 +377,9 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
                break;
        
        case NFQNL_COPY_PACKET:
-               if (entskb->ip_summed == CHECKSUM_HW &&
-                   (*errp = skb_checksum_help(entskb,
-                                              outdev == NULL))) {
+               if ((entskb->ip_summed == CHECKSUM_PARTIAL ||
+                    entskb->ip_summed == CHECKSUM_COMPLETE) &&
+                   (*errp = skb_checksum_help(entskb))) {
                        spin_unlock_bh(&queue->lock);
                        return NULL;
                }

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4172a52..300215b 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -586,7 +586,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
                else if (skb->pkt_type == PACKET_OUTGOING) {
                        /* Special case: outgoing packets have ll header at head */
                        skb_pull(skb, skb->nh.raw - skb->data);
-                       if (skb->ip_summed == CHECKSUM_HW)
+                       if (skb->ip_summed == CHECKSUM_PARTIAL)
                                status |= TP_STATUS_CSUMNOTREADY;
                }
        }

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index a08ec4c..45939ba 100644 (file)
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -192,8 +192,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
         */
        if (q->corrupt && q->corrupt >= get_crandom(&q->corrupt_cor)) {
                if (!(skb = skb_unshare(skb, GFP_ATOMIC))
-                   || (skb->ip_summed == CHECKSUM_HW
-                       && skb_checksum_help(skb, 0))) {
+                   || (skb->ip_summed == CHECKSUM_PARTIAL
+                       && skb_checksum_help(skb))) {
                        sch->qstats.drops++;
                        return NET_XMIT_DROP;
                }

diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index eb330d4..6f17527 100644 (file)
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -168,7 +168,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
                return -1;
        if ((unsigned short)csum_fold(desc.csum))
                return -1;
-       if (unlikely(skb->ip_summed == CHECKSUM_HW))
+       if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
                netdev_rx_csum_fault(skb->dev);
        return 0;
 no_checksum: