mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
77b2283604
This replaces all instances of lock_kernel in x25 with lock_sock, taking care to release the socket lock around sleeping functions (sock_alloc_send_skb and skb_recv_datagram). It is not clear whether this is a correct solution, but it seem to be what other protocols do in the same situation. Includes a fix suggested by Eric Dumazet. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Andrew Hendry <andrew.hendry@gmail.com> Cc: linux-x25@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Eric Dumazet <eric.dumazet@gmail.com>
37 lines
1.6 KiB
Plaintext
37 lines
1.6 KiB
Plaintext
#
|
|
# CCITT X.25 Packet Layer
|
|
#
|
|
|
|
config X25
|
|
tristate "CCITT X.25 Packet Layer (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
---help---
|
|
X.25 is a set of standardized network protocols, similar in scope to
|
|
frame relay; the one physical line from your box to the X.25 network
|
|
entry point can carry several logical point-to-point connections
|
|
(called "virtual circuits") to other computers connected to the X.25
|
|
network. Governments, banks, and other organizations tend to use it
|
|
to connect to each other or to form Wide Area Networks (WANs). Many
|
|
countries have public X.25 networks. X.25 consists of two
|
|
protocols: the higher level Packet Layer Protocol (PLP) (say Y here
|
|
if you want that) and the lower level data link layer protocol LAPB
|
|
(say Y to "LAPB Data Link Driver" below if you want that).
|
|
|
|
You can read more about X.25 at <http://www.sangoma.com/x25.htm> and
|
|
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/cbook/cx25.htm>.
|
|
Information about X.25 for Linux is contained in the files
|
|
<file:Documentation/networking/x25.txt> and
|
|
<file:Documentation/networking/x25-iface.txt>.
|
|
|
|
One connects to an X.25 network either with a dedicated network card
|
|
using the X.21 protocol (not yet supported by Linux) or one can do
|
|
X.25 over a standard telephone line using an ordinary modem (say Y
|
|
to "X.25 async driver" below) or over Ethernet using an ordinary
|
|
Ethernet card and the LAPB over Ethernet (say Y to "LAPB Data Link
|
|
Driver" and "LAPB over Ethernet driver" below).
|
|
|
|
To compile this driver as a module, choose M here: the module
|
|
will be called x25. If unsure, say N.
|
|
|
|
|