[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>

3 files changed, 4 insertions, 4 deletions

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 4c766f36d884..b990805806af 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -527,7 +527,7 @@ static int bfusb_send_frame(struct sk_buff *skb)
                 buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
 
                 memcpy(skb_put(nskb, 3), buf, 3);
-                memcpy(skb_put(nskb, size), skb->data + sent, size);
+                skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
 
                 sent  += size;
                 count -= size;
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 9fca6513562d..e8ebd5d3de86 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -231,7 +231,7 @@ static void bpa10x_wakeup(struct bpa10x_data *data)
                 cr = (struct usb_ctrlrequest *) urb->setup_packet;
                 cr->wLength = __cpu_to_le16(skb->len);
 
-                memcpy(urb->transfer_buffer, skb->data, skb->len);
+                skb_copy_from_linear_data(skb, urb->transfer_buffer, skb->len);
                 urb->transfer_buffer_length = skb->len;
 
                 err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -250,7 +250,7 @@ static void bpa10x_wakeup(struct bpa10x_data *data)
                 skb = skb_dequeue(&data->tx_queue);
 
         if (skb) {
-                memcpy(urb->transfer_buffer, skb->data, skb->len);
+                skb_copy_from_linear_data(skb, urb->transfer_buffer, skb->len);
                 urb->transfer_buffer_length = skb->len;
 
                 err = usb_submit_urb(urb, GFP_ATOMIC);
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 459aa97937ab..7f9c54b9964a 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -425,7 +425,7 @@ static int dtl1_hci_send_frame(struct sk_buff *skb)
                 return -ENOMEM;
 
         skb_reserve(s, NSHL);
-        memcpy(skb_put(s, skb->len), skb->data, skb->len);
+        skb_copy_from_linear_data(skb, skb_put(s, skb->len), skb->len);
         if (skb->len & 0x0001)
                 *skb_put(s, 1) = 0;     /* PAD */