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path: root/drivers/net/hamradio/6pack.c
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Diffstat (limited to 'drivers/net/hamradio/6pack.c')
-rw-r--r--drivers/net/hamradio/6pack.c66
1 files changed, 45 insertions, 21 deletions
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 0f501d2ca93..66e2b19ef70 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -3,7 +3,7 @@
* devices like TTY. It interfaces between a raw TTY and the
* kernel's AX.25 protocol layers.
*
- * Authors: Andreas Könsgen <ajk@iehk.rwth-aachen.de>
+ * Authors: Andreas Könsgen <ajk@comnets.uni-bremen.de>
* Ralf Baechle DL5RB <ralf@linux-mips.org>
*
* Quite a lot of stuff "stolen" by Joerg Reuter from slip.c, written by
@@ -13,7 +13,6 @@
*/
#include <linux/module.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/bitops.h>
#include <linux/string.h>
@@ -24,6 +23,7 @@
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/timer.h>
+#include <linux/slab.h>
#include <net/ax25.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
@@ -34,7 +34,8 @@
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/semaphore.h>
-#include <asm/atomic.h>
+#include <linux/compat.h>
+#include <linux/atomic.h>
#define SIXPACK_VERSION "Revision: 0.3.0"
@@ -242,7 +243,7 @@ out_drop:
/* Encapsulate an IP datagram and kick it into a TTY queue. */
-static int sp_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sp_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct sixpack *sp = netdev_priv(dev);
@@ -255,7 +256,7 @@ static int sp_xmit(struct sk_buff *skb, struct net_device *dev)
dev_kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
static int sp_open_dev(struct net_device *dev)
@@ -322,23 +323,25 @@ static const struct header_ops sp_header_ops = {
.rebuild = sp_rebuild_header,
};
+static const struct net_device_ops sp_netdev_ops = {
+ .ndo_open = sp_open_dev,
+ .ndo_stop = sp_close,
+ .ndo_start_xmit = sp_xmit,
+ .ndo_set_mac_address = sp_set_mac_address,
+};
+
static void sp_setup(struct net_device *dev)
{
/* Finish setting up the DEVICE info. */
- dev->mtu = SIXP_MTU;
- dev->hard_start_xmit = sp_xmit;
- dev->open = sp_open_dev;
+ dev->netdev_ops = &sp_netdev_ops;
dev->destructor = free_netdev;
- dev->stop = sp_close;
-
- dev->set_mac_address = sp_set_mac_address;
+ dev->mtu = SIXP_MTU;
dev->hard_header_len = AX25_MAX_HEADER_LEN;
dev->header_ops = &sp_header_ops;
dev->addr_len = AX25_ADDR_LEN;
dev->type = ARPHRD_AX25;
dev->tx_queue_len = 10;
- dev->tx_timeout = NULL;
/* Only activated in AX.25 mode */
memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
@@ -373,7 +376,6 @@ static void sp_bump(struct sixpack *sp, char cmd)
memcpy(ptr, sp->cooked_buf + 1, count);
skb->protocol = ax25_type_trans(skb, sp->dev);
netif_rx(skb);
- sp->dev->last_rx = jiffies;
sp->dev->stats.rx_packets++;
return;
@@ -605,7 +607,7 @@ static int sixpack_open(struct tty_struct *tty)
spin_lock_init(&sp->lock);
atomic_set(&sp->refcnt, 1);
- init_MUTEX_LOCKED(&sp->dead_sem);
+ sema_init(&sp->dead_sem, 0);
/* !!! length of the buffers. MTU is IP MTU, not PACLEN! */
@@ -660,7 +662,8 @@ static int sixpack_open(struct tty_struct *tty)
tty->receive_room = 65536;
/* Now we're ready to register. */
- if (register_netdev(dev))
+ err = register_netdev(dev);
+ if (err)
goto out_free;
tnc_init(sp);
@@ -689,10 +692,10 @@ static void sixpack_close(struct tty_struct *tty)
{
struct sixpack *sp;
- write_lock(&disc_data_lock);
+ write_lock_bh(&disc_data_lock);
sp = tty->disc_data;
tty->disc_data = NULL;
- write_unlock(&disc_data_lock);
+ write_unlock_bh(&disc_data_lock);
if (!sp)
return;
@@ -718,11 +721,12 @@ static int sixpack_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct sixpack *sp = sp_get(tty);
- struct net_device *dev = sp->dev;
+ struct net_device *dev;
unsigned int tmp, err;
if (!sp)
return -ENXIO;
+ dev = sp->dev;
switch(cmd) {
case SIOCGIFNAME:
@@ -775,6 +779,23 @@ static int sixpack_ioctl(struct tty_struct *tty, struct file *file,
return err;
}
+#ifdef CONFIG_COMPAT
+static long sixpack_compat_ioctl(struct tty_struct * tty, struct file * file,
+ unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case SIOCGIFNAME:
+ case SIOCGIFENCAP:
+ case SIOCSIFENCAP:
+ case SIOCSIFHWADDR:
+ return sixpack_ioctl(tty, file, cmd,
+ (unsigned long)compat_ptr(arg));
+ }
+
+ return -ENOIOCTLCMD;
+}
+#endif
+
static struct tty_ldisc_ops sp_ldisc = {
.owner = THIS_MODULE,
.magic = TTY_LDISC_MAGIC,
@@ -782,15 +803,18 @@ static struct tty_ldisc_ops sp_ldisc = {
.open = sixpack_open,
.close = sixpack_close,
.ioctl = sixpack_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = sixpack_compat_ioctl,
+#endif
.receive_buf = sixpack_receive_buf,
.write_wakeup = sixpack_write_wakeup,
};
/* Initialize 6pack control device -- register 6pack line discipline */
-static char msg_banner[] __initdata = KERN_INFO \
+static const char msg_banner[] __initconst = KERN_INFO \
"AX.25: 6pack driver, " SIXPACK_VERSION "\n";
-static char msg_regfail[] __initdata = KERN_ERR \
+static const char msg_regfail[] __initconst = KERN_ERR \
"6pack: can't register line discipline (err = %d)\n";
static int __init sixpack_init_driver(void)
@@ -806,7 +830,7 @@ static int __init sixpack_init_driver(void)
return status;
}
-static const char msg_unregfail[] __exitdata = KERN_ERR \
+static const char msg_unregfail[] = KERN_ERR \
"6pack: can't unregister line discipline (err = %d)\n";
static void __exit sixpack_exit_driver(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:55:48 +0000