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authorMarcel Holtmann <marcel@holtmann.org>2005-08-10 07:30:28 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-30 02:55:13 +0400
commit0d48d93947dd9ea21c5cdc76a8581b06a4a39281 (patch)
tree96a1cbfe83a02e27fed3d30f1ac9f2fe05c17506 /net/bluetooth/hci_sock.c
parent2eb25a6c34504254760e67172f7518d6bfdd7676 (diff)
downloadlinux-0d48d93947dd9ea21c5cdc76a8581b06a4a39281.tar.xz
[Bluetooth]: Move packet type into the SKB control buffer
This patch moves the usage of packet type into the SKB control buffer. After this patch it is now possible to shrink the sk_buff structure and redefine its pkt_type. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bluetooth/hci_sock.c')
-rw-r--r--net/bluetooth/hci_sock.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index ebdcce5e7ca0..eed9090d77f1 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -110,11 +110,11 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
/* Apply filter */
flt = &hci_pi(sk)->filter;
- if (!test_bit((skb->pkt_type == HCI_VENDOR_PKT) ?
- 0 : (skb->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
+ if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ?
+ 0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
continue;
- if (skb->pkt_type == HCI_EVENT_PKT) {
+ if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) {
register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
if (!hci_test_bit(evt, &flt->event_mask))
@@ -131,7 +131,7 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
continue;
/* Put type byte before the data */
- memcpy(skb_push(nskb, 1), &nskb->pkt_type, 1);
+ memcpy(skb_push(nskb, 1), &bt_cb(nskb)->pkt_type, 1);
if (sock_queue_rcv_skb(sk, nskb))
kfree_skb(nskb);
@@ -327,8 +327,10 @@ static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_
{
__u32 mask = hci_pi(sk)->cmsg_mask;
- if (mask & HCI_CMSG_DIR)
- put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(int), &bt_cb(skb)->incoming);
+ if (mask & HCI_CMSG_DIR) {
+ int incoming = bt_cb(skb)->incoming;
+ put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), &incoming);
+ }
if (mask & HCI_CMSG_TSTAMP)
put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(skb->stamp), &skb->stamp);
@@ -405,11 +407,11 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
goto drop;
}
- skb->pkt_type = *((unsigned char *) skb->data);
+ bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
skb_pull(skb, 1);
skb->dev = (void *) hdev;
- if (skb->pkt_type == HCI_COMMAND_PKT) {
+ if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
u16 opcode = __le16_to_cpu(get_unaligned((u16 *)skb->data));
u16 ogf = hci_opcode_ogf(opcode);
u16 ocf = hci_opcode_ocf(opcode);