diff options
| -rw-r--r-- | include/net/bluetooth/bluetooth.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 0a5f98081581..11020b12a6ed 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -444,6 +444,34 @@ out: return NULL; } +/* Shall not be called with lock_sock held */ +static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk, + struct msghdr *msg, + size_t len, size_t mtu, + size_t headroom, size_t tailroom) +{ + struct sk_buff *skb; + size_t size = min_t(size_t, len, mtu); + int err; + + skb = bt_skb_send_alloc(sk, size + headroom + tailroom, + msg->msg_flags & MSG_DONTWAIT, &err); + if (!skb) + return ERR_PTR(err); + + skb_reserve(skb, headroom); + skb_tailroom_reserve(skb, mtu, tailroom); + + if (!copy_from_iter_full(skb_put(skb, size), size, &msg->msg_iter)) { + kfree_skb(skb); + return ERR_PTR(-EFAULT); + } + + skb->priority = sk->sk_priority; + + return skb; +} + int bt_to_errno(u16 code); void hci_sock_set_flag(struct sock *sk, int nr); |