mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-28 20:37:27 +00:00
7176522cdc
Commit fada4ac339 introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by cmtp_del_connection()
which is waiting for the thread to exit -- deadlock.
Revert cmtp_reset_ctr to its original behavior: non-blocking signalling
for the session to terminate.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
|
|
CMTP implementation for Linux Bluetooth stack (BlueZ).
|
|
Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License version 2 as
|
|
published by the Free Software Foundation;
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
|
SOFTWARE IS DISCLAIMED.
|
|
*/
|
|
|
|
#ifndef __CMTP_H
|
|
#define __CMTP_H
|
|
|
|
#include <linux/types.h>
|
|
#include <net/bluetooth/bluetooth.h>
|
|
|
|
#define BTNAMSIZ 18
|
|
|
|
/* CMTP ioctl defines */
|
|
#define CMTPCONNADD _IOW('C', 200, int)
|
|
#define CMTPCONNDEL _IOW('C', 201, int)
|
|
#define CMTPGETCONNLIST _IOR('C', 210, int)
|
|
#define CMTPGETCONNINFO _IOR('C', 211, int)
|
|
|
|
#define CMTP_LOOPBACK 0
|
|
|
|
struct cmtp_connadd_req {
|
|
int sock; /* Connected socket */
|
|
__u32 flags;
|
|
};
|
|
|
|
struct cmtp_conndel_req {
|
|
bdaddr_t bdaddr;
|
|
__u32 flags;
|
|
};
|
|
|
|
struct cmtp_conninfo {
|
|
bdaddr_t bdaddr;
|
|
__u32 flags;
|
|
__u16 state;
|
|
int num;
|
|
};
|
|
|
|
struct cmtp_connlist_req {
|
|
__u32 cnum;
|
|
struct cmtp_conninfo __user *ci;
|
|
};
|
|
|
|
int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock);
|
|
int cmtp_del_connection(struct cmtp_conndel_req *req);
|
|
int cmtp_get_connlist(struct cmtp_connlist_req *req);
|
|
int cmtp_get_conninfo(struct cmtp_conninfo *ci);
|
|
|
|
/* CMTP session defines */
|
|
#define CMTP_INTEROP_TIMEOUT (HZ * 5)
|
|
#define CMTP_INITIAL_MSGNUM 0xff00
|
|
|
|
struct cmtp_session {
|
|
struct list_head list;
|
|
|
|
struct socket *sock;
|
|
|
|
bdaddr_t bdaddr;
|
|
|
|
unsigned long state;
|
|
unsigned long flags;
|
|
|
|
uint mtu;
|
|
|
|
char name[BTNAMSIZ];
|
|
|
|
atomic_t terminate;
|
|
struct task_struct *task;
|
|
|
|
wait_queue_head_t wait;
|
|
|
|
int ncontroller;
|
|
int num;
|
|
struct capi_ctr ctrl;
|
|
|
|
struct list_head applications;
|
|
|
|
unsigned long blockids;
|
|
int msgnum;
|
|
|
|
struct sk_buff_head transmit;
|
|
|
|
struct sk_buff *reassembly[16];
|
|
};
|
|
|
|
struct cmtp_application {
|
|
struct list_head list;
|
|
|
|
unsigned long state;
|
|
int err;
|
|
|
|
__u16 appl;
|
|
__u16 mapping;
|
|
|
|
__u16 msgnum;
|
|
};
|
|
|
|
struct cmtp_scb {
|
|
int id;
|
|
int data;
|
|
};
|
|
|
|
int cmtp_attach_device(struct cmtp_session *session);
|
|
void cmtp_detach_device(struct cmtp_session *session);
|
|
|
|
void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb);
|
|
|
|
/* CMTP init defines */
|
|
int cmtp_init_sockets(void);
|
|
void cmtp_cleanup_sockets(void);
|
|
|
|
#endif /* __CMTP_H */
|