[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}

To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

63 files changed, 185 insertions, 127 deletions

diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index edef008c2b42..f26077a773d5 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -473,7 +473,7 @@ simeth_rx(struct net_device *dev)
                  * XXX Fix me
                  * Should really do a csum+copy here
                  */
-                memcpy(skb->data, frame, len);
+                skb_copy_to_linear_data(skb, frame, len);
 #endif
                 skb->protocol = eth_type_trans(skb, dev);
 
diff --git a/arch/ia64/sn/kernel/xpnet.c b/arch/ia64/sn/kernel/xpnet.c
index 9fc02654f0f5..5419acb89a8c 100644
--- a/arch/ia64/sn/kernel/xpnet.c
+++ b/arch/ia64/sn/kernel/xpnet.c
@@ -233,7 +233,7 @@ xpnet_receive(partid_t partid, int channel, struct xpnet_message *msg)
                         "%lu)\n", skb->data, &msg->data,
                         (size_t) msg->embedded_bytes);
 
-                memcpy(skb->data, &msg->data, (size_t) msg->embedded_bytes);
+                skb_copy_to_linear_data(skb, &msg->data, (size_t)msg->embedded_bytes);
         } else {
                 dev_dbg(xpnet, "transferring buffer to the skb->data area;\n\t"
                         "bte_copy(0x%p, 0x%p, %hu)\n", (void *)msg->buf_pa,
diff --git a/drivers/isdn/hysdn/hycapi.c b/drivers/isdn/hysdn/hycapi.c
index 4433ce0fca55..f85450146bdc 100644
--- a/drivers/isdn/hysdn/hycapi.c
+++ b/drivers/isdn/hysdn/hycapi.c
@@ -399,7 +399,8 @@ static u16 hycapi_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
                         if (_len > 22) {
                                 _len2 = _len - 22;
                                 skb_copy_from_linear_data(skb, msghead, 22);
-                                memcpy(skb->data + _len2, msghead, 22);
+                                skb_copy_to_linear_data_offset(skb, _len2,
+                                                               msghead, 22);
                                 skb_pull(skb, _len2);
                                 CAPIMSG_SETLEN(skb->data, 22);
                                 retval = capilib_data_b3_req(&cinfo->ncci_head,
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 2101334a8ac2..a844b1fe2dc4 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -1904,10 +1904,10 @@ static __inline__ void wrap_copy(struct sk_buff *skb, const unsigned char *ring,
         u32 left = RX_BUF_LEN - offset;
 
         if (size > left) {
-                memcpy(skb->data, ring + offset, left);
-                memcpy(skb->data+left, ring, size - left);
+                skb_copy_to_linear_data(skb, ring + offset, left);
+                skb_copy_to_linear_data_offset(skb, left, ring, size - left);
         } else
-                memcpy(skb->data, ring + offset, size);
+                skb_copy_to_linear_data(skb, ring + offset, size);
 }
 #endif
 
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index 43c17c85c97b..6a6cbd331a16 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -774,7 +774,7 @@ static int sendup_buffer (struct net_device *dev)
         skb_pull(skb,3);
 
         /* copy ddp(s,e)hdr + contents */
-        memcpy(skb->data,(void*)ltdmabuf,len);
+        skb_copy_to_linear_data(skb, ltdmabuf, len);
 
         skb_reset_transport_header(skb);
 
diff --git a/drivers/net/atari_bionet.c b/drivers/net/atari_bionet.c
index 13dbed368d6a..3d87bd2b4194 100644
--- a/drivers/net/atari_bionet.c
+++ b/drivers/net/atari_bionet.c
@@ -550,7 +550,8 @@ bionet_poll_rx(struct net_device *dev) {
 
                         /* 'skb->data' points to the start of sk_buff data area.
                          */
-                        memcpy(skb->data, nic_packet->buffer, pkt_len);
+                        skb_copy_to_linear_data(skb, nic_packet->buffer,
+                                                pkt_len);
                         skb->protocol = eth_type_trans( skb, dev );
                         netif_rx(skb);
                         dev->last_rx = jiffies;
diff --git a/drivers/net/atari_pamsnet.c b/drivers/net/atari_pamsnet.c
index 745101d7451b..54714409a09b 100644
--- a/drivers/net/atari_pamsnet.c
+++ b/drivers/net/atari_pamsnet.c
@@ -793,7 +793,8 @@ pamsnet_poll_rx(struct net_device *dev) {
 
                         /* 'skb->data' points to the start of sk_buff data area.
                          */
-                        memcpy(skb->data, nic_packet->buffer, pkt_len);
+                        skb_copy_to_linear_data(skb, nic_packet->buffer,
+                                                pkt_len);
                         netif_rx(skb);
                         dev->last_rx = jiffies;
                         lp->stats.rx_packets++;
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 1be1bbd16164..e4f874a70fe5 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -2095,10 +2095,14 @@ static void espibug_workaround_t204(unsigned long data)
                                         0x0, 0x7, 0x43, 0x0, 0x0, 0x0
                                 };
 
-                                memcpy(skb->data + sizeof(struct cpl_tx_pkt),
-                                        ch_mac_addr, ETH_ALEN);
-                                memcpy(skb->data + skb->len - 10,
-                                        ch_mac_addr, ETH_ALEN);
+                                skb_copy_to_linear_data_offset(skb,
+                                                    sizeof(struct cpl_tx_pkt),
+                                                               ch_mac_addr,
+                                                               ETH_ALEN);
+                                skb_copy_to_linear_data_offset(skb,
+                                                               skb->len - 10,
+                                                               ch_mac_addr,
+                                                               ETH_ALEN);
                                 skb->cb[0] = 0xff;
                         }
 
@@ -2125,10 +2129,14 @@ static void espibug_workaround(unsigned long data)
                         if (!skb->cb[0]) {
                                 u8 ch_mac_addr[ETH_ALEN] =
                                     {0x0, 0x7, 0x43, 0x0, 0x0, 0x0};
-                                memcpy(skb->data + sizeof(struct cpl_tx_pkt),
-                                       ch_mac_addr, ETH_ALEN);
-                                memcpy(skb->data + skb->len - 10, ch_mac_addr,
-                                       ETH_ALEN);
+                                skb_copy_to_linear_data_offset(skb,
+                                                     sizeof(struct cpl_tx_pkt),
+                                                               ch_mac_addr,
+                                                               ETH_ALEN);
+                                skb_copy_to_linear_data_offset(skb,
+                                                               skb->len - 10,
+                                                               ch_mac_addr,
+                                                               ETH_ALEN);
                                 skb->cb[0] = 0xff;
                         }
 
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 166c959c94b9..3666586a4831 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -661,7 +661,7 @@ static inline struct sk_buff *get_imm_packet(const struct rsp_desc *resp)
 
         if (skb) {
                 __skb_put(skb, IMMED_PKT_SIZE);
-                memcpy(skb->data, resp->imm_data, IMMED_PKT_SIZE);
+                skb_copy_to_linear_data(skb, resp->imm_data, IMMED_PKT_SIZE);
         }
         return skb;
 }
@@ -1722,11 +1722,11 @@ static void skb_data_init(struct sk_buff *skb, struct sge_fl_page *p,
 {
         skb->len = len;
         if (len <= SKB_DATA_SIZE) {
-                memcpy(skb->data, p->va, len);
+                skb_copy_to_linear_data(skb, p->va, len);
                 skb->tail += len;
                 put_page(p->frag.page);
         } else {
-                memcpy(skb->data, p->va, SKB_DATA_SIZE);
+                skb_copy_to_linear_data(skb, p->va, SKB_DATA_SIZE);
                 skb_shinfo(skb)->frags[0].page = p->frag.page;
                 skb_shinfo(skb)->frags[0].page_offset =
                     p->frag.page_offset + SKB_DATA_SIZE;
diff --git a/drivers/net/defxx.c b/drivers/net/defxx.c
index 8d29fae1c71c..571d82f8008c 100644
--- a/drivers/net/defxx.c
+++ b/drivers/net/defxx.c
@@ -3091,7 +3091,9 @@ static void dfx_rcv_queue_process(
                                         {
                                                 /* Receive buffer allocated, pass receive packet up */
 
-                                                memcpy(skb->data, p_buff + RCV_BUFF_K_PADDING, pkt_len+3);
+                                                skb_copy_to_linear_data(skb,
+                                                               p_buff + RCV_BUFF_K_PADDING,
+                                                               pkt_len + 3);
                                         }
 
                                         skb_reserve(skb,3);             /* adjust data field so that it points to FC byte */
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 0cefef5e3f06..4d0e0aea72bf 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1769,7 +1769,7 @@ static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
 
         /* Align, init, and map the RFD. */
         skb_reserve(rx->skb, NET_IP_ALIGN);
-        memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
+        skb_copy_to_linear_data(rx->skb, &nic->blank_rfd, sizeof(struct rfd));
         rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
                 RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
 
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index e7c93f44f810..610216ec4918 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4224,9 +4224,12 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
                             netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
                         if (new_skb) {
                                 skb_reserve(new_skb, NET_IP_ALIGN);
-                                memcpy(new_skb->data - NET_IP_ALIGN,
-                                       skb->data - NET_IP_ALIGN,
-                                       length + NET_IP_ALIGN);
+                                skb_copy_to_linear_data_offset(new_skb,
+                                                               -NET_IP_ALIGN,
+                                                               (skb->data -
+                                                                NET_IP_ALIGN),
+                                                               (length +
+                                                                NET_IP_ALIGN));
                                 /* save the skb in buffer_info as good */
                                 buffer_info->skb = skb;
                                 skb = new_skb;
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 8b5392072632..58364a0ff378 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -391,8 +391,8 @@ static int ehea_poll(struct net_device *dev, int *budget)
                                         if (!skb)
                                                 break;
                                 }
-                                memcpy(skb->data, ((char*)cqe) + 64,
-                                       cqe->num_bytes_transfered - 4);
+                                skb_copy_to_linear_data(skb, ((char*)cqe) + 64,
+                                               cqe->num_bytes_transfered - 4);
                                 ehea_fill_skb(dev, skb, cqe);
                         } else if (rq == 2) {  /* RQ2 */
                                 skb = get_skb_by_index(skb_arr_rq2,
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
index fb2248a25516..f9c889c0dd07 100644
--- a/drivers/net/irda/ali-ircc.c
+++ b/drivers/net/irda/ali-ircc.c
@@ -1923,7 +1923,7 @@ static int  ali_ircc_dma_receive_complete(struct ali_ircc_cb *self)
                         
                         /* Copy frame without CRC, CRC is removed by hardware*/
                         skb_put(skb, len);
-                        memcpy(skb->data, self->rx_buff.data, len);
+                        skb_copy_to_linear_data(skb, self->rx_buff.data, len);
 
                         /* Move to next frame */
                         self->rx_buff.data += len;
diff --git a/drivers/net/irda/au1k_ir.c b/drivers/net/irda/au1k_ir.c
index cdd1f6c1e741..4dbdfaaf37bf 100644
--- a/drivers/net/irda/au1k_ir.c
+++ b/drivers/net/irda/au1k_ir.c
@@ -604,7 +604,7 @@ static int au1k_irda_rx(struct net_device *dev)
                                 skb_put(skb, count);
                         else
                                 skb_put(skb, count-2);
-                        memcpy(skb->data, (void *)pDB->vaddr, count-2);
+                        skb_copy_to_linear_data(skb, pDB->vaddr, count - 2);
                         skb->dev = dev;
                         skb_reset_mac_header(skb);
                         skb->protocol = htons(ETH_P_IRDA);
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index 9987a0dc1eaf..3ca47bf6dfec 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -1282,8 +1282,8 @@ dumpbufs(self->rx_bufs[self->rxs],len,'<');
                       skb_reserve (skb, 1);
 
                       skb_put (skb, len);
-                      memcpy (skb->data, self->rx_bufs[self->rxs], len);
-
+                      skb_copy_to_linear_data(skb, self->rx_bufs[self->rxs],
+                                              len);
                       self->stats.rx_packets++;
                       skb->dev = self->netdev;
                       skb_reset_mac_header(skb);
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index 4b0037e498f8..54d1d543c92c 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -426,7 +426,7 @@ static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len)
         }
 
         skb_reserve(skb, 1);
-        memcpy(skb->data, buf, new_len);
+        skb_copy_to_linear_data(skb, buf, new_len);
         skb_put(skb, new_len);
         skb_reset_mac_header(skb);
         skb->protocol = htons(ETH_P_IRDA);
@@ -479,7 +479,7 @@ static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len)
         }
 
         skb_reserve(skb, 1);
-        memcpy(skb->data, buf, new_len);
+        skb_copy_to_linear_data(skb, buf, new_len);
         skb_put(skb, new_len);
         skb_reset_mac_header(skb);
         skb->protocol = htons(ETH_P_IRDA);
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index 0ff992714136..d96c89751a71 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -1868,10 +1868,14 @@ static int nsc_ircc_dma_receive_complete(struct nsc_ircc_cb *self, int iobase)
                         /* Copy frame without CRC */
                         if (self->io.speed < 4000000) {
                                 skb_put(skb, len-2);
-                                memcpy(skb->data, self->rx_buff.data, len-2);
+                                skb_copy_to_linear_data(skb,
+                                                        self->rx_buff.data,
+                                                        len - 2);
                         } else {
                                 skb_put(skb, len-4);
-                                memcpy(skb->data, self->rx_buff.data, len-4);
+                                skb_copy_to_linear_data(skb,
+                                                        self->rx_buff.data,
+                                                        len - 4);
                         }
 
                         /* Move to next frame */
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index b3e1107420af..fb196fd91855 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -386,7 +386,7 @@ static void pxa_irda_fir_irq_eif(struct pxa_irda *si, struct net_device *dev, in
 
                 /* Align IP header to 20 bytes  */
                 skb_reserve(skb, 1);
-                memcpy(skb->data, si->dma_rx_buff, len);
+                skb_copy_to_linear_data(skb, si->dma_rx_buff, len);
                 skb_put(skb, len);
 
                 /* Feed it to IrLAP  */
diff --git a/drivers/net/irda/stir4200.c b/drivers/net/irda/stir4200.c
index aec86a214340..755aa444a4dd 100644
--- a/drivers/net/irda/stir4200.c
+++ b/drivers/net/irda/stir4200.c
@@ -348,7 +348,7 @@ static void fir_eof(struct stir_cb *stir)
                 }
                 skb_reserve(nskb, 1);
                 skb = nskb;
-                memcpy(nskb->data, rx_buff->data, len);
+                skb_copy_to_linear_data(nskb, rx_buff->data, len);
         } else {
                 nskb = dev_alloc_skb(rx_buff->truesize);
                 if (unlikely(!nskb)) {
diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index 45bbd6686151..ff5358574d0a 100644
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -1189,7 +1189,7 @@ F01_E */
                 skb_reserve(skb, 1);
                 skb_put(skb, len - 4);
 
-                memcpy(skb->data, self->rx_buff.data, len - 4);
+                skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4);
                 IRDA_DEBUG(2, "%s(): len=%x.rx_buff=%p\n", __FUNCTION__,
                            len - 4, self->rx_buff.data);
 
@@ -1234,7 +1234,7 @@ static int upload_rxdata(struct via_ircc_cb *self, int iobase)
         }
         skb_reserve(skb, 1);
         skb_put(skb, len - 4 + 1);
-        memcpy(skb->data, self->rx_buff.data, len - 4 + 1);
+        skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4 + 1);
         st_fifo->tail++;
         st_fifo->len++;
         if (st_fifo->tail > MAX_RX_WINDOW)
@@ -1303,7 +1303,7 @@ static int RxTimerHandler(struct via_ircc_cb *self, int iobase)
                         }
                         skb_reserve(skb, 1);
                         skb_put(skb, len - 4);
-                        memcpy(skb->data, self->rx_buff.data, len - 4);
+                        skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4);
 
                         IRDA_DEBUG(2, "%s(): len=%x.head=%x\n", __FUNCTION__,
                                    len - 4, st_fifo->head);
diff --git a/drivers/net/irda/w83977af_ir.c b/drivers/net/irda/w83977af_ir.c
index 0d4a68618fc1..5182e800cc18 100644
--- a/drivers/net/irda/w83977af_ir.c
+++ b/drivers/net/irda/w83977af_ir.c
@@ -908,10 +908,14 @@ int w83977af_dma_receive_complete(struct w83977af_ir *self)
                         /* Copy frame without CRC */
                         if (self->io.speed < 4000000) {
                                 skb_put(skb, len-2);
-                                memcpy(skb->data, self->rx_buff.data, len-2);
+                                skb_copy_to_linear_data(skb,
+                                                        self->rx_buff.data,
+                                                        len - 2);
                         } else {
                                 skb_put(skb, len-4);
-                                memcpy(skb->data, self->rx_buff.data, len-4);
+                                skb_copy_to_linear_data(skb,
+                                                        self->rx_buff.data,
+                                                        len - 4);
                         }
 
                         /* Move to next frame */
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index e729ced52dc3..dfde80e54aef 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -2017,9 +2017,12 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
                             netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
                         if (new_skb) {
                                 skb_reserve(new_skb, NET_IP_ALIGN);
-                                memcpy(new_skb->data - NET_IP_ALIGN,
-                                       skb->data - NET_IP_ALIGN,
-                                       length + NET_IP_ALIGN);
+                                skb_copy_to_linear_data_offset(new_skb,
+                                                               -NET_IP_ALIGN,
+                                                               (skb->data -
+                                                                NET_IP_ALIGN),
+                                                               (length +
+                                                                NET_IP_ALIGN));
                                 /* save the skb in buffer_info as good */
                                 buffer_info->skb = skb;
                                 skb = new_skb;
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 20b5cb101368..6df673a058ce 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -94,7 +94,8 @@ static void emulate_large_send_offload(struct sk_buff *skb)
                 skb_set_mac_header(nskb, -ETH_HLEN);
                 skb_reset_network_header(nskb);
                 iph = ip_hdr(nskb);
-                memcpy(nskb->data, skb_network_header(skb), doffset);
+                skb_copy_to_linear_data(nskb, skb_network_header(skb),
+                                        doffset);
                 if (skb_copy_bits(skb,
                                   doffset + offset,
                                   nskb->data + doffset,
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 9e233f8216a7..0e04f7ac3f2e 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -367,9 +367,10 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
                         BUG_ON(frag != last_frag);
                         frag_len = len - offset;
                 }
-                memcpy(skb->data + offset,
-                       bp->rx_buffers + (RX_BUFFER_SIZE * frag),
-                       frag_len);
+                skb_copy_to_linear_data_offset(skb, offset,
+                                               (bp->rx_buffers +
+                                                (RX_BUFFER_SIZE * frag)),
+                                               frag_len);
                 offset += RX_BUFFER_SIZE;
                 bp->rx_ring[frag].addr &= ~MACB_BIT(RX_USED);
                 wmb();
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e4b69a0485ba..16e3c4315e82 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -879,7 +879,7 @@ myri10ge_rx_skb_build(struct sk_buff *skb, u8 * va,
          * skb_pull() (for ether_pad and eth_type_trans()) requires
          * the beginning of the packet in skb_headlen(), move it
          * manually */
-        memcpy(skb->data, va, hlen);
+        skb_copy_to_linear_data(skb, va, hlen);
         skb_shinfo(skb)->frags[0].page_offset += hlen;
         skb_shinfo(skb)->frags[0].size -= hlen;
         skb->data_len -= hlen;
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index b987a5c3f42a..e0a93005e6dc 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -2127,7 +2127,7 @@ rx_start:
                                                     (dma_addr_t) PhysAddr,
                                                     FrameLength,
                                                     PCI_DMA_FROMDEVICE);
-                        memcpy(pNewMsg->data, pMsg, FrameLength);
+                        skb_copy_to_linear_data(pNewMsg, pMsg, FrameLength);
 
                         pci_dma_sync_single_for_device(pAC->PciDev,
                                                        (dma_addr_t) PhysAddr,
diff --git a/drivers/net/skfp/skfddi.c b/drivers/net/skfp/skfddi.c
index 064e7c21c01d..a7ef6c8b7721 100644
--- a/drivers/net/skfp/skfddi.c
+++ b/drivers/net/skfp/skfddi.c
@@ -1937,7 +1937,7 @@ int mac_drv_rx_init(struct s_smc *smc, int len, int fc,
         }
         skb_reserve(skb, 3);
         skb_put(skb, len);
-        memcpy(skb->data, look_ahead, len);
+        skb_copy_to_linear_data(skb, look_ahead, len);
 
         // deliver frame to system
         skb->protocol = fddi_type_trans(skb, smc->os.dev);
diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
index 327ed7962fbd..791e081fdc15 100644
--- a/drivers/net/sun3lance.c
+++ b/drivers/net/sun3lance.c
@@ -853,7 +853,7 @@ static int lance_rx( struct net_device *dev )
 
                                 skb_reserve( skb, 2 );  /* 16 byte align */
                                 skb_put( skb, pkt_len );        /* Make room */
-//                              memcpy( skb->data, PKTBUF_ADDR(head), pkt_len );
+//                              skb_copy_to_linear_data(skb, PKTBUF_ADDR(head), pkt_len);
                                 eth_copy_and_sum(skb,
                                                  PKTBUF_ADDR(head),
                                                  pkt_len, 0);
diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c
index b0296d80e46c..9bbea5c8acf4 100644
--- a/drivers/net/tokenring/smctr.c
+++ b/drivers/net/tokenring/smctr.c
@@ -3889,7 +3889,7 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
 
                 /* Slide data into a sleek skb. */
                 skb_put(skb, skb->len);
-                memcpy(skb->data, rmf, skb->len);
+                skb_copy_to_linear_data(skb, rmf, skb->len);
 
                 /* Update Counters */
                 tp->MacStat.rx_packets++;
@@ -4475,7 +4475,7 @@ static int smctr_rx_frame(struct net_device *dev)
                                 if (skb) {
                                         skb_put(skb, rx_size);
 
-                                        memcpy(skb->data, pbuff, rx_size);
+                                        skb_copy_to_linear_data(skb, pbuff, rx_size);
 
                                         /* Update Counters */
                                         tp->MacStat.rx_packets++;
diff --git a/drivers/net/tokenring/tms380tr.c b/drivers/net/tokenring/tms380tr.c
index e6f0817c3509..12bd294045a7 100644
--- a/drivers/net/tokenring/tms380tr.c
+++ b/drivers/net/tokenring/tms380tr.c
@@ -2178,7 +2178,8 @@ static void tms380tr_rcv_status_irq(struct net_device *dev)
                                 || rpl->SkbStat == SKB_DMA_DIRECT))
                         {
                                 if(rpl->SkbStat == SKB_DATA_COPY)
-                                        memcpy(skb->data, ReceiveDataPtr, Length);
+                                        skb_copy_to_linear_data(skb, ReceiveDataPtr,
+                                                       Length);
 
                                 /* Deliver frame to system */
                                 rpl->Skb = NULL;
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 25021a7992a9..dca024471455 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -1904,7 +1904,8 @@ static struct sk_buff *dscc4_init_dummy_skb(struct dscc4_dev_priv *dpriv)
                 struct TxFD *tx_fd = dpriv->tx_fd + last;
 
                 skb->len = DUMMY_SKB_SIZE;
-                memcpy(skb->data, version, strlen(version)%DUMMY_SKB_SIZE);
+                skb_copy_to_linear_data(skb, version,
+                                        strlen(version) % DUMMY_SKB_SIZE);
                 tx_fd->state = FrameEnd | TO_STATE_TX(DUMMY_SKB_SIZE);
                 tx_fd->data = pci_map_single(dpriv->pci_priv->pdev, skb->data,
                                              DUMMY_SKB_SIZE, PCI_DMA_TODEVICE);
diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c
index 8ba75bb17326..999bf71937ca 100644
--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -1759,7 +1759,7 @@ cpc_trace(struct net_device *dev, struct sk_buff *skb_main, char rx_tx)
         skb->pkt_type = PACKET_HOST;
         skb->len = 10 + skb_main->len;
 
-        memcpy(skb->data, dev->name, 5);
+        skb_copy_to_linear_data(skb, dev->name, 5);
         skb->data[5] = '[';
         skb->data[6] = rx_tx;
         skb->data[7] = ']';
diff --git a/drivers/net/wan/pc300_tty.c b/drivers/net/wan/pc300_tty.c
index de02a07259cf..07dbdfbfc15d 100644
--- a/drivers/net/wan/pc300_tty.c
+++ b/drivers/net/wan/pc300_tty.c
@@ -1007,13 +1007,13 @@ static void cpc_tty_trace(pc300dev_t *dev, char* buf, int len, char rxtx)
         skb->pkt_type = PACKET_HOST; 
         skb->len = 10 + len; 
 
-        memcpy(skb->data,dev->dev->name,5);
+        skb_copy_to_linear_data(skb, dev->dev->name, 5);
         skb->data[5] = '['; 
         skb->data[6] = rxtx; 
         skb->data[7] = ']'; 
         skb->data[8] = ':'; 
         skb->data[9] = ' '; 
-        memcpy(&skb->data[10], buf, len); 
+        skb_copy_to_linear_data_offset(skb, 10, buf, len);
         netif_rx(skb); 
 }       
 
diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
index 9432d2ce7745..98ef400908b8 100644
--- a/drivers/net/wan/z85230.c
+++ b/drivers/net/wan/z85230.c
@@ -1656,7 +1656,7 @@ static void z8530_rx_done(struct z8530_channel *c)
                 else
                 {
                         skb_put(skb, ct);
-                        memcpy(skb->data, rxb, ct);
+                        skb_copy_to_linear_data(skb, rxb, ct);
                         c->stats.rx_packets++;
                         c->stats.rx_bytes+=ct;
                 }
diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c
index 7d8bff1dbc4d..dd070cccf324 100644
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -136,7 +136,7 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
                                 printk("islpci_eth_transmit:wds_mac\n");
 #endif
                                 memmove(skb->data + 6, src, skb->len);
-                                memcpy(skb->data, wds_mac, 6);
+                                skb_copy_to_linear_data(skb, wds_mac, 6);
                         } else {
                                 memmove(skb->data, src, skb->len);
                         }
@@ -165,7 +165,7 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
                                 skb_copy_from_linear_data(skb,
                                                           newskb->data + 6,
                                                           skb->len);
-                                memcpy(newskb->data, wds_mac, 6);
+                                skb_copy_to_linear_data(newskb, wds_mac, 6);
 #ifdef ISLPCI_ETH_DEBUG
                                 printk("islpci_eth_transmit:wds_mac\n");
 #endif
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index df7f279ec408..ad7792dc1a04 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -2501,7 +2501,8 @@ qeth_process_inbound_buffer(struct qeth_card *card,
                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
                 else { /*in case of OSN*/
                         skb_push(skb, sizeof(struct qeth_hdr));
-                        memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
+                        skb_copy_to_linear_data(skb, hdr,
+                                                sizeof(struct qeth_hdr));
                 }
                 /* is device UP ? */
                 if (!(card->dev->flags & IFF_UP)){
@@ -3870,9 +3871,9 @@ __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
                  * memcpys instead of one memmove to save cycles.
                  */
                 skb_push(skb, VLAN_HLEN);
-                memcpy(skb->data, skb->data + 4, 4);
-                memcpy(skb->data + 4, skb->data + 8, 4);
-                memcpy(skb->data + 8, skb->data + 12, 4);
+                skb_copy_to_linear_data(skb, skb->data + 4, 4);
+                skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
+                skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
                 tag = (u16 *)(skb->data + 12);
                 /*
                  * first two bytes  = ETH_P_8021Q (0x8100)
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index d287c5755229..d3e2c5f90a26 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -396,7 +396,9 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
                         goto out;       /* atm_charge increments rx_drop */
                 }
 
-                memcpy(skb->data, skb_tail_pointer(sarb) - pdu_length, length);
+                skb_copy_to_linear_data(skb,
+                                        skb_tail_pointer(sarb) - pdu_length,
+                                        length);
                 __skb_put(skb, length);
 
                 vdbg("%s: sending skb 0x%p, skb->len %u, skb->truesize %u",
diff --git a/drivers/usb/net/asix.c b/drivers/usb/net/asix.c
index f56e2dab3712..d5ef97bc4d01 100644
--- a/drivers/usb/net/asix.c
+++ b/drivers/usb/net/asix.c
@@ -352,7 +352,7 @@ static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
         skb_push(skb, 4);
         packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
         cpu_to_le32s(&packet_len);
-        memcpy(skb->data, &packet_len, sizeof(packet_len));
+        skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
 
         if ((skb->len % 512) == 0) {
                 cpu_to_le32s(&padbytes);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 08c96bcbc59c..92969f662ee4 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1521,6 +1521,21 @@ static inline void skb_copy_from_linear_data_offset(const struct sk_buff *skb,
         memcpy(to, skb->data + offset, len);
 }
 
+static inline void skb_copy_to_linear_data(struct sk_buff *skb,
+                                           const void *from,
+                                           const unsigned int len)
+{
+        memcpy(skb->data, from, len);
+}
+
+static inline void skb_copy_to_linear_data_offset(struct sk_buff *skb,
+                                                  const int offset,
+                                                  const void *from,
+                                                  const unsigned int len)
+{
+        memcpy(skb->data + offset, from, len);
+}
+
 extern void skb_init(void);
 
 /**
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index a1686dfcbb9a..0e9f00c5c899 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -173,7 +173,7 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct br2684_dev *brdev,
         }
         skb_push(skb, minheadroom);
         if (brvcc->encaps == e_llc)
-                memcpy(skb->data, llc_oui_pid_pad, 10);
+                skb_copy_to_linear_data(skb, llc_oui_pid_pad, 10);
         else
                 memset(skb->data, 0, 2);
 #endif /* FASTER_VERSION */
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 4b3e72f31b3b..6d63afa5764d 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -576,8 +576,8 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
                                         break;
                                 }
                                 skb2->len = sizeof(struct atmlec_msg);
-                                memcpy(skb2->data, mesg,
-                                       sizeof(struct atmlec_msg));
+                                skb_copy_to_linear_data(skb2, mesg,
+                                                        sizeof(*mesg));
                                 atm_force_charge(priv->lecd, skb2->truesize);
                                 sk = sk_atm(priv->lecd);
                                 skb_queue_tail(&sk->sk_receive_queue, skb2);
@@ -1337,7 +1337,7 @@ static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
                 if (skb == NULL)
                         return -1;
                 skb->len = *sizeoftlvs;
-                memcpy(skb->data, *tlvs, *sizeoftlvs);
+                skb_copy_to_linear_data(skb, *tlvs, *sizeoftlvs);
                 retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb);
         }
         return retval;
@@ -1371,7 +1371,7 @@ static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
         if (skb == NULL)
                 return 0;
         skb->len = sizeoftlvs;
-        memcpy(skb->data, tlvs, sizeoftlvs);
+        skb_copy_to_linear_data(skb, tlvs, sizeoftlvs);
         retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
         if (retval != 0)
                 printk("lec.c: lane2_associate_req() failed\n");
diff --git a/net/atm/mpc.c b/net/atm/mpc.c
index 4d2592c14090..813e08d6dc7c 100644
--- a/net/atm/mpc.c
+++ b/net/atm/mpc.c
@@ -504,11 +504,13 @@ static int send_via_shortcut(struct sk_buff *skb, struct mpoa_client *mpc)
                 tagged_llc_snap_hdr.tag = entry->ctrl_info.tag;
                 skb_pull(skb, ETH_HLEN);                       /* get rid of Eth header */
                 skb_push(skb, sizeof(tagged_llc_snap_hdr));    /* add LLC/SNAP header   */
-                memcpy(skb->data, &tagged_llc_snap_hdr, sizeof(tagged_llc_snap_hdr));
+                skb_copy_to_linear_data(skb, &tagged_llc_snap_hdr,
+                                        sizeof(tagged_llc_snap_hdr));
         } else {
                 skb_pull(skb, ETH_HLEN);                        /* get rid of Eth header */
                 skb_push(skb, sizeof(struct llc_snap_hdr));     /* add LLC/SNAP header + tag  */
-                memcpy(skb->data, &llc_snap_mpoa_data, sizeof(struct llc_snap_hdr));
+                skb_copy_to_linear_data(skb, &llc_snap_mpoa_data,
+                                        sizeof(struct llc_snap_hdr));
         }
 
         atomic_add(skb->truesize, &sk_atm(entry->shortcut)->sk_wmem_alloc);
@@ -711,7 +713,8 @@ static void mpc_push(struct atm_vcc *vcc, struct sk_buff *skb)
                 return;
         }
         skb_push(new_skb, eg->ctrl_info.DH_length);     /* add MAC header */
-        memcpy(new_skb->data, eg->ctrl_info.DLL_header, eg->ctrl_info.DH_length);
+        skb_copy_to_linear_data(new_skb, eg->ctrl_info.DLL_header,
+                                eg->ctrl_info.DH_length);
         new_skb->protocol = eth_type_trans(new_skb, dev);
         skb_reset_network_header(new_skb);
 
@@ -936,7 +939,7 @@ int msg_to_mpoad(struct k_message *mesg, struct mpoa_client *mpc)
         if (skb == NULL)
                 return -ENOMEM;
         skb_put(skb, sizeof(struct k_message));
-        memcpy(skb->data, mesg, sizeof(struct k_message));
+        skb_copy_to_linear_data(skb, mesg, sizeof(*mesg));
         atm_force_charge(mpc->mpoad_vcc, skb->truesize);
 
         sk = sk_atm(mpc->mpoad_vcc);
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 8b45224699f4..fd70d041e51f 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -149,7 +149,8 @@ int nf_bridge_copy_header(struct sk_buff *skb)
         if (err)
                 return err;
 
-        memcpy(skb->data - header_size, skb->nf_bridge->data, header_size);
+        skb_copy_to_linear_data_offset(skb, -header_size,
+                                       skb->nf_bridge->data, header_size);
 
         if (skb->protocol == htons(ETH_P_8021Q))
                 __skb_push(skb, VLAN_HLEN);
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 57a82445c465..1fb30c3528bc 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -293,7 +293,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
         if (!skb)
                 return;
 
-        memcpy(skb->data, msg, len);
+        skb_copy_to_linear_data(skb, msg, len);
         skb->len += len;
 
         skb_push(skb, sizeof(*udph));
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 17c6bb5927b6..331d3efa82fa 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1129,7 +1129,7 @@ int skb_store_bits(const struct sk_buff *skb, int offset, void *from, int len)
         if ((copy = start - offset) > 0) {
                 if (copy > len)
                         copy = len;
-                memcpy(skb->data + offset, from, copy);
+                skb_copy_to_linear_data_offset(skb, offset, from, copy);
                 if ((len -= copy) == 0)
                         return 0;
                 offset += copy;
diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c
index 94e2b8e2ab26..6ae036b1920f 100644
--- a/net/ieee80211/ieee80211_rx.c
+++ b/net/ieee80211/ieee80211_rx.c
@@ -759,8 +759,9 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
                     IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) {
                 /* Non-standard frame: get addr4 from its bogus location after
                  * the payload */
-                memcpy(skb->data + ETH_ALEN,
-                       skb->data + skb->len - ETH_ALEN, ETH_ALEN);
+                skb_copy_to_linear_data_offset(skb, ETH_ALEN,
+                                               skb->data + skb->len - ETH_ALEN,
+                                               ETH_ALEN);
                 skb_trim(skb, skb->len - ETH_ALEN);
         }
 #endif
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index ba348b1e5f84..ab86137c71d2 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -66,7 +66,7 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
 
         skb->truesize += dlen - plen;
         __skb_put(skb, dlen - plen);
-        memcpy(skb->data, scratch, dlen);
+        skb_copy_to_linear_data(skb, scratch, dlen);
 out:
         put_cpu();
         return err;
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 48027df5a90b..0ebae413ae87 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -584,7 +584,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 
         skb->network_header = skb->tail;
         skb_put(skb, ihl);
-        memcpy(skb->data,pkt->data,ihl);
+        skb_copy_to_linear_data(skb, pkt->data, ihl);
         ip_hdr(skb)->protocol = 0;                      /* Flag to the kernel this is a route add */
         msg = (struct igmpmsg *)skb_network_header(skb);
         msg->im_vif = vifi;
diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index c8a822c0aa75..15ad5dd2d984 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -602,7 +602,7 @@ int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
                 skb_put(skb, diff);
                 memmove(skb->data + o_offset + n_len,
                         skb->data + o_offset + o_len, o_left);
-                memcpy(skb->data + o_offset, n_buf, n_len);
+                skb_copy_to_linear_data_offset(skb, o_offset, n_buf, n_len);
         }
 
         /* must update the iph total length here */
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index cd8fec05f9bc..0d72693869e6 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -368,7 +368,7 @@ ipq_mangle_ipv4(ipq_verdict_msg_t *v, struct ipq_queue_entry *e)
         }
         if (!skb_make_writable(&e->skb, v->data_len))
                 return -ENOMEM;
-        memcpy(e->skb->data, v->payload, v->data_len);
+        skb_copy_to_linear_data(e->skb, v->payload, v->data_len);
         e->skb->ip_summed = CHECKSUM_NONE;
 
         return 0;
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 7691a1b5caac..1ee50b5782e1 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -111,7 +111,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 
         skb->truesize += dlen - plen;
         __skb_put(skb, dlen - plen);
-        memcpy(skb->data, scratch, dlen);
+        skb_copy_to_linear_data(skb, scratch, dlen);
         err = ipch->nexthdr;
 
 out_put_cpu:
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 2f1ae422d87f..bfae9fdc4668 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -366,7 +366,7 @@ ipq_mangle_ipv6(ipq_verdict_msg_t *v, struct ipq_queue_entry *e)
         }
         if (!skb_make_writable(&e->skb, v->data_len))
                 return -ENOMEM;
-        memcpy(e->skb->data, v->payload, v->data_len);
+        skb_copy_to_linear_data(e->skb, v->payload, v->data_len);
         e->skb->ip_summed = CHECKSUM_NONE;
 
         return 0;
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index b55bc8f989df..3279897a01b0 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -256,7 +256,7 @@ static struct sk_buff *irttp_reassemble_skb(struct tsap_cb *self)
          *  Copy all fragments to a new buffer
          */
         while ((frag = skb_dequeue(&self->rx_fragments)) != NULL) {
-                memcpy(skb->data+n, frag->data, frag->len);
+                skb_copy_to_linear_data_offset(skb, n, frag->data, frag->len);
                 n += frag->len;
 
                 dev_kfree_skb(frag);
diff --git a/net/irda/wrapper.c b/net/irda/wrapper.c
index 2acc66dfb558..a7a7f191f1a8 100644
--- a/net/irda/wrapper.c
+++ b/net/irda/wrapper.c
@@ -239,7 +239,8 @@ async_bump(struct net_device *dev,
 
         if(docopy) {
                 /* Copy data without CRC (lenght already checked) */
-                memcpy(newskb->data, rx_buff->data, rx_buff->len - 2);
+                skb_copy_to_linear_data(newskb, rx_buff->data,
+                                        rx_buff->len - 2);
                 /* Deliver this skb */
                 dataskb = newskb;
         } else {
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 9aefb1c9bfa3..7a97bec67729 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -648,7 +648,7 @@ nfqnl_mangle(void *data, int data_len, struct nfqnl_queue_entry *e)
         }
         if (!skb_make_writable(&e->skb, data_len))
                 return -ENOMEM;
-        memcpy(e->skb->data, data, data_len);
+        skb_copy_to_linear_data(e->skb, data, data_len);
         e->skb->ip_summed = CHECKSUM_NONE;
         return 0;
 }
diff --git a/net/netrom/nr_out.c b/net/netrom/nr_out.c
index 7c467c95c7d6..e3e6c44e1890 100644
--- a/net/netrom/nr_out.c
+++ b/net/netrom/nr_out.c
@@ -59,8 +59,8 @@ void nr_output(struct sock *sk, struct sk_buff *skb)
 
                         /* Duplicate the Transport Header */
                         skb_push(skbn, NR_TRANSPORT_LEN);
-                        memcpy(skbn->data, transport, NR_TRANSPORT_LEN);
-
+                        skb_copy_to_linear_data(skbn, transport,
+                                                NR_TRANSPORT_LEN);
                         if (skb->len > 0)
                                 skbn->data[4] |= NR_MORE_FLAG;
 
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index f38c3b3471ee..806bf6f5dc6d 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1181,7 +1181,7 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock,
 
                         /* Duplicate the Header */
                         skb_push(skbn, ROSE_MIN_LEN);
-                        memcpy(skbn->data, header, ROSE_MIN_LEN);
+                        skb_copy_to_linear_data(skbn, header, ROSE_MIN_LEN);
 
                         if (skb->len > 0)
                                 skbn->data[2] |= M_BIT;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 71c2f2fd405c..f3f99c8ea08a 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1001,7 +1001,7 @@ static int link_bundle_buf(struct link *l_ptr,
                 return 0;
 
         skb_put(bundler, pad + size);
-        memcpy(bundler->data + to_pos, buf->data, size);
+        skb_copy_to_linear_data_offset(bundler, to_pos, buf->data, size);
         msg_set_size(bundler_msg, to_pos + size);
         msg_set_msgcnt(bundler_msg, msg_msgcnt(bundler_msg) + 1);
         dbg("Packed msg # %u(%u octets) into pos %u in buf(#%u)\n",
@@ -1109,8 +1109,8 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf)
                         if (bundler) {
                                 msg_init(&bundler_hdr, MSG_BUNDLER, OPEN_MSG,
                                          TIPC_OK, INT_H_SIZE, l_ptr->addr);
-                                memcpy(bundler->data, (unchar *)&bundler_hdr,
-                                       INT_H_SIZE);
+                                skb_copy_to_linear_data(bundler, &bundler_hdr,
+                                                        INT_H_SIZE);
                                 skb_trim(bundler, INT_H_SIZE);
                                 link_bundle_buf(l_ptr, bundler, buf);
                                 buf = bundler;
@@ -1383,9 +1383,9 @@ again:
         if (!buf)
                 return -ENOMEM;
         buf->next = NULL;
-        memcpy(buf->data, (unchar *)&fragm_hdr, INT_H_SIZE);
+        skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
         hsz = msg_hdr_sz(hdr);
-        memcpy(buf->data + INT_H_SIZE, (unchar *)hdr, hsz);
+        skb_copy_to_linear_data_offset(buf, INT_H_SIZE, hdr, hsz);
         msg_dbg(buf_msg(buf), ">BUILD>");
 
         /* Chop up message: */
@@ -1416,8 +1416,8 @@ error:
                                 return -EFAULT;
                         }
                 } else
-                        memcpy(buf->data + fragm_crs, sect_crs, sz);
-
+                        skb_copy_to_linear_data_offset(buf, fragm_crs,
+                                                       sect_crs, sz);
                 sect_crs += sz;
                 sect_rest -= sz;
                 fragm_crs += sz;
@@ -1442,7 +1442,7 @@ error:
 
                         buf->next = NULL;
                         prev->next = buf;
-                        memcpy(buf->data, (unchar *)&fragm_hdr, INT_H_SIZE);
+                        skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
                         fragm_crs = INT_H_SIZE;
                         fragm_rest = fragm_sz;
                         msg_dbg(buf_msg(buf),"  >BUILD>");
@@ -2130,7 +2130,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg,
                 buf = l_ptr->proto_msg_queue;
                 if (!buf)
                         return;
-                memcpy(buf->data, (unchar *)msg, sizeof(l_ptr->proto_msg));
+                skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
                 return;
         }
         msg_set_timestamp(msg, jiffies_to_msecs(jiffies));
@@ -2143,7 +2143,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg,
         if (!buf)
                 return;
 
-        memcpy(buf->data, (unchar *)msg, sizeof(l_ptr->proto_msg));
+        skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
         msg_set_size(buf_msg(buf), msg_size);
 
         if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
@@ -2319,8 +2319,8 @@ void tipc_link_tunnel(struct link *l_ptr,
                      "unable to send tunnel msg\n");
                 return;
         }
-        memcpy(buf->data, (unchar *)tunnel_hdr, INT_H_SIZE);
-        memcpy(buf->data + INT_H_SIZE, (unchar *)msg, length);
+        skb_copy_to_linear_data(buf, tunnel_hdr, INT_H_SIZE);
+        skb_copy_to_linear_data_offset(buf, INT_H_SIZE, msg, length);
         dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane);
         msg_dbg(buf_msg(buf), ">SEND>");
         tipc_link_send_buf(tunnel, buf);
@@ -2361,7 +2361,7 @@ void tipc_link_changeover(struct link *l_ptr)
 
                 buf = buf_acquire(INT_H_SIZE);
                 if (buf) {
-                        memcpy(buf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
+                        skb_copy_to_linear_data(buf, &tunnel_hdr, INT_H_SIZE);
                         msg_set_size(&tunnel_hdr, INT_H_SIZE);
                         dbg("%c->%c:", l_ptr->b_ptr->net_plane,
                             tunnel->b_ptr->net_plane);
@@ -2426,8 +2426,9 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel)
                              "unable to send duplicate msg\n");
                         return;
                 }
-                memcpy(outbuf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
-                memcpy(outbuf->data + INT_H_SIZE, iter->data, length);
+                skb_copy_to_linear_data(outbuf, &tunnel_hdr, INT_H_SIZE);
+                skb_copy_to_linear_data_offset(outbuf, INT_H_SIZE, iter->data,
+                                               length);
                 dbg("%c->%c:", l_ptr->b_ptr->net_plane,
                     tunnel->b_ptr->net_plane);
                 msg_dbg(buf_msg(outbuf), ">SEND>");
@@ -2457,7 +2458,7 @@ static struct sk_buff *buf_extract(struct sk_buff *skb, u32 from_pos)
 
         eb = buf_acquire(size);
         if (eb)
-                memcpy(eb->data, (unchar *)msg, size);
+                skb_copy_to_linear_data(eb, msg, size);
         return eb;
 }
 
@@ -2631,9 +2632,9 @@ int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf)
                         goto exit;
                 }
                 msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE);
-                memcpy(fragm->data, (unchar *)&fragm_hdr, INT_H_SIZE);
-                memcpy(fragm->data + INT_H_SIZE, crs, fragm_sz);
-
+                skb_copy_to_linear_data(fragm, &fragm_hdr, INT_H_SIZE);
+                skb_copy_to_linear_data_offset(fragm, INT_H_SIZE, crs,
+                                               fragm_sz);
                 /*  Send queued messages first, if any: */
 
                 l_ptr->stats.sent_fragments++;
@@ -2733,8 +2734,8 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
                 if (pbuf != NULL) {
                         pbuf->next = *pending;
                         *pending = pbuf;
-                        memcpy(pbuf->data, (unchar *)imsg, msg_data_sz(fragm));
-
+                        skb_copy_to_linear_data(pbuf, imsg,
+                                                msg_data_sz(fragm));
                         /*  Prepare buffer for subsequent fragments. */
 
                         set_long_msg_seqno(pbuf, long_msg_seq_no);
@@ -2750,7 +2751,8 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
                 u32 fsz = get_fragm_size(pbuf);
                 u32 crs = ((msg_fragm_no(fragm) - 1) * fsz);
                 u32 exp_frags = get_expected_frags(pbuf) - 1;
-                memcpy(pbuf->data + crs, msg_data(fragm), dsz);
+                skb_copy_to_linear_data_offset(pbuf, crs,
+                                               msg_data(fragm), dsz);
                 buf_discard(fbuf);
 
                 /* Is message complete? */
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 62d549063604..aec7ce7af875 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -786,15 +786,16 @@ static inline int msg_build(struct tipc_msg *hdr,
         *buf = buf_acquire(sz);
         if (!(*buf))
                 return -ENOMEM;
-        memcpy((*buf)->data, (unchar *)hdr, hsz);
+        skb_copy_to_linear_data(*buf, hdr, hsz);
         for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
                 if (likely(usrmem))
                         res = !copy_from_user((*buf)->data + pos,
                                               msg_sect[cnt].iov_base,
                                               msg_sect[cnt].iov_len);
                 else
-                        memcpy((*buf)->data + pos, msg_sect[cnt].iov_base,
-                               msg_sect[cnt].iov_len);
+                        skb_copy_to_linear_data_offset(*buf, pos,
+                                                       msg_sect[cnt].iov_base,
+                                                       msg_sect[cnt].iov_len);
                 pos += msg_sect[cnt].iov_len;
         }
         if (likely(res))
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 5f8217d4b452..bcd5da00737b 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -464,7 +464,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
         msg_set_size(rmsg, data_sz + hdr_sz);
         msg_set_nametype(rmsg, msg_nametype(msg));
         msg_set_nameinst(rmsg, msg_nameinst(msg));
-        memcpy(rbuf->data + hdr_sz, msg_data(msg), data_sz);
+        skb_copy_to_linear_data_offset(rbuf, hdr_sz, msg_data(msg), data_sz);
 
         /* send self-abort message when rejecting on a connected port */
         if (msg_connected(msg)) {
@@ -1419,7 +1419,7 @@ int tipc_send_buf(u32 ref, struct sk_buff *buf, unsigned int dsz)
                 return -ENOMEM;
 
         skb_push(buf, hsz);
-        memcpy(buf->data, (unchar *)msg, hsz);
+        skb_copy_to_linear_data(buf, msg, hsz);
         destnode = msg_destnode(msg);
         p_ptr->publ.congested = 1;
         if (!tipc_port_congested(p_ptr)) {
@@ -1555,7 +1555,7 @@ int tipc_forward_buf2name(u32 ref,
         if (skb_cow(buf, LONG_H_SIZE))
                 return -ENOMEM;
         skb_push(buf, LONG_H_SIZE);
-        memcpy(buf->data, (unchar *)msg, LONG_H_SIZE);
+        skb_copy_to_linear_data(buf, msg, LONG_H_SIZE);
         msg_dbg(buf_msg(buf),"PREP:");
         if (likely(destport || destnode)) {
                 p_ptr->sent++;
@@ -1679,7 +1679,7 @@ int tipc_forward_buf2port(u32 ref,
                 return -ENOMEM;
 
         skb_push(buf, DIR_MSG_H_SIZE);
-        memcpy(buf->data, (unchar *)msg, DIR_MSG_H_SIZE);
+        skb_copy_to_linear_data(buf, msg, DIR_MSG_H_SIZE);
         msg_dbg(msg, "buf2port: ");
         p_ptr->sent++;
         if (dest->node == tipc_own_addr)
diff --git a/net/wanrouter/wanmain.c b/net/wanrouter/wanmain.c
index c49e223084f1..7a19e0ede289 100644
--- a/net/wanrouter/wanmain.c
+++ b/net/wanrouter/wanmain.c
@@ -277,8 +277,8 @@ int wanrouter_encapsulate(struct sk_buff *skb, struct net_device *dev,
                 skb_push(skb, 7);
                 skb->data[0] = 0;
                 skb->data[1] = NLPID_SNAP;
-                memcpy(&skb->data[2], wanrouter_oui_ether,
-                       sizeof(wanrouter_oui_ether));
+                skb_copy_to_linear_data_offset(skb, 2, wanrouter_oui_ether,
+                                               sizeof(wanrouter_oui_ether));
                 *((unsigned short*)&skb->data[5]) = htons(type);
                 break;
 
diff --git a/net/x25/x25_out.c b/net/x25/x25_out.c
index bb45e21ffce9..2b96b52114d6 100644
--- a/net/x25/x25_out.c
+++ b/net/x25/x25_out.c
@@ -89,7 +89,7 @@ int x25_output(struct sock *sk, struct sk_buff *skb)
 
                         /* Duplicate the Header */
                         skb_push(skbn, header_len);
-                        memcpy(skbn->data, header, header_len);
+                        skb_copy_to_linear_data(skbn, header, header_len);
 
                         if (skb->len > 0) {
                                 if (x25->neighbour->extended)