[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

To clearly state the intent of copying from 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@redhat.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index fc518d85543d..1b9493a16aca 100644
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -221,7 +221,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
         hdr->vpi = htons(vcc->vpi);
         hdr->vci = htons(vcc->vci);
         hdr->length = htonl(skb->len);
-        memcpy(skb_put(new_skb,skb->len),skb->data,skb->len);
+        skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
         if (vcc->pop) vcc->pop(vcc,skb);
         else dev_kfree_skb(skb);
         out_vcc->push(out_vcc,new_skb);
@@ -310,7 +310,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
                 goto done;
         }
         __net_timestamp(new_skb);
-        memcpy(skb_put(new_skb,skb->len),skb->data,skb->len);
+        skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
         out_vcc->push(out_vcc,new_skb);
         atomic_inc(&vcc->stats->tx);
         atomic_inc(&out_vcc->stats->rx);
diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index 26f4b7033494..14ced85b3f54 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -2395,7 +2395,7 @@ static void dequeue_rx(ns_dev *card, ns_rsqe *rsqe)
                skb->destructor = ns_lb_destructor;
 #endif /* NS_USE_DESTRUCTORS */
                skb_push(skb, NS_SMBUFSIZE);
-               memcpy(skb->data, sb->data, NS_SMBUFSIZE);
+               skb_copy_from_linear_data(sb, skb->data, NS_SMBUFSIZE);
                skb_put(skb, len - NS_SMBUFSIZE);
                ATM_SKB(skb)->vcc = vcc;
                __net_timestamp(skb);
@@ -2479,7 +2479,7 @@ static void dequeue_rx(ns_dev *card, ns_rsqe *rsqe)
          {
             /* Copy the small buffer to the huge buffer */
             sb = (struct sk_buff *) iov->iov_base;
-            memcpy(hb->data, sb->data, iov->iov_len);
+            skb_copy_from_linear_data(sb, hb->data, iov->iov_len);
             skb_put(hb, iov->iov_len);
             remaining = len - iov->iov_len;
             iov++;
@@ -2491,7 +2491,7 @@ static void dequeue_rx(ns_dev *card, ns_rsqe *rsqe)
             {
                lb = (struct sk_buff *) iov->iov_base;
                tocopy = min_t(int, remaining, iov->iov_len);
-               memcpy(skb_tail_pointer(hb), lb->data, tocopy);
+               skb_copy_from_linear_data(lb, skb_tail_pointer(hb), tocopy);
                skb_put(hb, tocopy);
                iov++;
                remaining -= tocopy;