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Bluetooth: Add send_mode_rsp convenience function for mgmt.c

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Several management commands have similar responses but they are not
always sent asynchronously. To enable synchronous sending (from the
managment command handler function) a send_mode_rsp function is added.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2011-01-26 13:07:10 +02:00 committed by Gustavo F. Padovan
parent ebc99feba7
commit 053f0211d3
1 changed files with 29 additions and 21 deletions
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50
net/bluetooth/mgmt.c
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@ -481,6 +481,34 @@ failed:
return err;
}
static int send_mode_rsp(struct sock *sk, u16 opcode, u16 index, u8 val)
{
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
struct mgmt_mode *rp;
struct sk_buff *skb;
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
if (!skb)
return -ENOMEM;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
ev = (void *) skb_put(skb, sizeof(*ev));
put_unaligned_le16(opcode, &ev->opcode);
rp = (void *) skb_put(skb, sizeof(*rp));
put_unaligned_le16(index, &rp->index);
rp->val = val;
if (sock_queue_rcv_skb(sk, skb) < 0)
kfree_skb(skb);
return 0;
}
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
{
unsigned char *buf;
@ -594,33 +622,13 @@ struct cmd_lookup {
static void mode_rsp(struct pending_cmd *cmd, void *data)
{
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
struct mgmt_mode *rp;
struct mgmt_mode *cp = cmd->cmd;
struct sk_buff *skb;
struct cmd_lookup *match = data;
if (cp->val != match->val)
return;
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
if (!skb)
return;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
ev = (void *) skb_put(skb, sizeof(*ev));
put_unaligned_le16(cmd->opcode, &ev->opcode);
rp = (void *) skb_put(skb, sizeof(*rp));
put_unaligned_le16(cmd->index, &rp->index);
rp->val = cp->val;
if (sock_queue_rcv_skb(cmd->sk, skb) < 0)
kfree_skb(skb);
send_mode_rsp(cmd->sk, cmd->opcode, cmd->index, cp->val);
list_del(&cmd->list);