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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 14:29:20 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-16 11:48:37 -0400
commit59ae1d127ac0ae404baf414c434ba2651b793f46 (patch)
tree043e71496aa7a7db86bcc8219a3a51f533aac982 /drivers/bluetooth/bfusb.c
parentb080db585384b9f037e015c0c28d1ad33be41dfc (diff)
networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/bluetooth/bfusb.c')
-rw-r--r--drivers/bluetooth/bfusb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 3bf4ec60e073..ab090a313a5f 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -335,7 +335,7 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
}
if (len > 0)
- memcpy(skb_put(data->reassembly, len), buf, len);
+ skb_put_data(data->reassembly, buf, len);
if (hdr & 0x08) {
hci_recv_frame(data->hdev, data->reassembly);
@@ -505,7 +505,7 @@ static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
buf[1] = 0x00;
buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
- memcpy(skb_put(nskb, 3), buf, 3);
+ skb_put_data(nskb, buf, 3);
skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
sent += size;
@@ -516,7 +516,7 @@ static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
if ((nskb->len % data->bulk_pkt_size) == 0) {
buf[0] = 0xdd;
buf[1] = 0x00;
- memcpy(skb_put(nskb, 2), buf, 2);
+ skb_put_data(nskb, buf, 2);
}
read_lock(&data->lock);