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authorXie He <xie.he.0141@gmail.com>2020-11-14 18:09:21 +0300
committerJakub Kicinski <kuba@kernel.org>2020-11-18 00:33:29 +0300
commitf73659192b0bdf7bad826587b3530cef43cc048d (patch)
treef5d863aef20b8cf90e3d80d273cc68488591cded /net/socket.c
parentfccf111e471d0e608a96844e093bba0147bb8bba (diff)
downloadlinux-f73659192b0bdf7bad826587b3530cef43cc048d.tar.xz
net: wan: Delete the DLCI / SDLA drivers
The DLCI driver (dlci.c) implements the Frame Relay protocol. However, we already have another newer and better implementation of Frame Relay provided by the HDLC_FR driver (hdlc_fr.c). The DLCI driver's implementation of Frame Relay is used by only one hardware driver in the kernel - the SDLA driver (sdla.c). The SDLA driver provides Frame Relay support for the Sangoma S50x devices. However, the vendor provides their own driver (along with their own multi-WAN-protocol implementations including Frame Relay), called WANPIPE. I believe most users of the hardware would use the vendor-provided WANPIPE driver instead. (The WANPIPE driver was even once in the kernel, but was deleted in commit 8db60bcf3021 ("[WAN]: Remove broken and unmaintained Sangoma drivers.") because the vendor no longer updated the in-kernel WANPIPE driver.) Cc: Mike McLagan <mike.mclagan@linux.org> Signed-off-by: Xie He <xie.he.0141@gmail.com> Link: https://lore.kernel.org/r/20201114150921.685594-1-xie.he.0141@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c25
1 files changed, 0 insertions, 25 deletions
diff --git a/net/socket.c b/net/socket.c
index 6e6cccc2104f..152b1dcf93c6 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -64,7 +64,6 @@
#include <linux/seq_file.h>
#include <linux/mutex.h>
#include <linux/if_bridge.h>
-#include <linux/if_frad.h>
#include <linux/if_vlan.h>
#include <linux/ptp_classify.h>
#include <linux/init.h>
@@ -1027,17 +1026,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
}
EXPORT_SYMBOL(vlan_ioctl_set);
-static DEFINE_MUTEX(dlci_ioctl_mutex);
-static int (*dlci_ioctl_hook) (unsigned int, void __user *);
-
-void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
-{
- mutex_lock(&dlci_ioctl_mutex);
- dlci_ioctl_hook = hook;
- mutex_unlock(&dlci_ioctl_mutex);
-}
-EXPORT_SYMBOL(dlci_ioctl_set);
-
static long sock_do_ioctl(struct net *net, struct socket *sock,
unsigned int cmd, unsigned long arg)
{
@@ -1156,17 +1144,6 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
err = vlan_ioctl_hook(net, argp);
mutex_unlock(&vlan_ioctl_mutex);
break;
- case SIOCADDDLCI:
- case SIOCDELDLCI:
- err = -ENOPKG;
- if (!dlci_ioctl_hook)
- request_module("dlci");
-
- mutex_lock(&dlci_ioctl_mutex);
- if (dlci_ioctl_hook)
- err = dlci_ioctl_hook(cmd, argp);
- mutex_unlock(&dlci_ioctl_mutex);
- break;
case SIOCGSKNS:
err = -EPERM;
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
@@ -3427,8 +3404,6 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock,
case SIOCBRDELBR:
case SIOCGIFVLAN:
case SIOCSIFVLAN:
- case SIOCADDDLCI:
- case SIOCDELDLCI:
case SIOCGSKNS:
case SIOCGSTAMP_NEW:
case SIOCGSTAMPNS_NEW: