From: Johan Hedberg <johan.hedberg@nokia.com>
Date: Sat, 19 Feb 2011 15:06:02 +0000 (-0300)
Subject: Bluetooth: Fix unnecessary list traversal in mgmt_pending_remove
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a664b5bc77fbc80c163de5606114659d3cbeb043;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git
Bluetooth: Fix unnecessary list traversal in mgmt_pending_remove
All of the places that need to call mgmt_pending_remove already have a
pointer to the pending command, so searching for the command in the list
doesn't make sense. The added benefit is that many places that
previously had to call list_del + mgmt_pending_free can just call
mgmt_pending_remove now.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
---
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 46e2c39c895..982becd33ee 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -290,14 +290,8 @@ static struct pending_cmd *mgmt_pending_find(u16 opcode, int index)
return NULL;
}
-static void mgmt_pending_remove(u16 opcode, int index)
+static void mgmt_pending_remove(struct pending_cmd *cmd)
{
- struct pending_cmd *cmd;
-
- cmd = mgmt_pending_find(opcode, index);
- if (cmd == NULL)
- return;
-
list_del(&cmd->list);
mgmt_pending_free(cmd);
}
@@ -401,7 +395,7 @@ static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
if (err < 0)
- mgmt_pending_remove(MGMT_OP_SET_DISCOVERABLE, dev_id);
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -459,7 +453,7 @@ static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
if (err < 0)
- mgmt_pending_remove(MGMT_OP_SET_CONNECTABLE, dev_id);
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -881,7 +875,7 @@ static int disconnect(struct sock *sk, unsigned char *data, u16 len)
err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
if (err < 0)
- mgmt_pending_remove(MGMT_OP_DISCONNECT, dev_id);
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -983,7 +977,7 @@ static int pin_code_reply(struct sock *sk, unsigned char *data, u16 len)
err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
if (err < 0)
- mgmt_pending_remove(MGMT_OP_PIN_CODE_REPLY, dev_id);
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -1026,7 +1020,7 @@ static int pin_code_neg_reply(struct sock *sk, unsigned char *data, u16 len)
err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, sizeof(bdaddr_t),
&cp->bdaddr);
if (err < 0)
- mgmt_pending_remove(MGMT_OP_PIN_CODE_NEG_REPLY, dev_id);
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -1107,8 +1101,7 @@ static void pairing_complete(struct pending_cmd *cmd, u8 status)
hci_conn_put(conn);
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
}
static void pairing_complete_cb(struct hci_conn *conn, u8 status)
@@ -1230,10 +1223,8 @@ static int user_confirm_reply(struct sock *sk, unsigned char *data, u16 len,
}
err = hci_send_cmd(hdev, hci_op, sizeof(cp->bdaddr), &cp->bdaddr);
- if (err < 0) {
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
- }
+ if (err < 0)
+ mgmt_pending_remove(cmd);
failed:
hci_dev_unlock_bh(hdev);
@@ -1494,8 +1485,7 @@ static void disconnect_rsp(struct pending_cmd *cmd, void *data)
*sk = cmd->sk;
sock_hold(*sk);
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
}
int mgmt_disconnected(u16 index, bdaddr_t *bdaddr)
@@ -1528,8 +1518,7 @@ int mgmt_disconnect_failed(u16 index)
err = cmd_status(cmd->sk, MGMT_OP_DISCONNECT, EIO);
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
return err;
}
@@ -1571,8 +1560,7 @@ int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
err = cmd_complete(cmd->sk, MGMT_OP_PIN_CODE_REPLY, &rp, sizeof(rp));
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
return err;
}
@@ -1594,8 +1582,7 @@ int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
err = cmd_complete(cmd->sk, MGMT_OP_PIN_CODE_NEG_REPLY,
&rp, sizeof(rp));
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
return err;
}
@@ -1629,8 +1616,7 @@ static int confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status,
rp.status = status;
err = cmd_complete(cmd->sk, opcode, &rp, sizeof(rp));
- list_del(&cmd->list);
- mgmt_pending_free(cmd);
+ mgmt_pending_remove(cmd);
return err;
}