#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/inet.h>
+#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/jiffies.h>
+#include <linux/compat.h>
#include <net/ax25.h>
unsigned char *xhead; /* pointer to next byte to XMIT */
int xleft; /* bytes left in XMIT queue */
- struct net_device_stats stats;
-
/* Detailed SLIP statistics. */
int mtu; /* Our mtu (to spot changes!) */
int buffsize; /* Max buffers sizes */
if (ax->rbuff[0] > 0x0f) {
if (ax->rbuff[0] & 0x80) {
if (check_crc_16(ax->rbuff, ax->rcount) < 0) {
- ax->stats.rx_errors++;
+ ax->dev->stats.rx_errors++;
spin_unlock_bh(&ax->buflock);
return;
}
if (ax->crcmode != CRC_MODE_SMACK && ax->crcauto) {
printk(KERN_INFO
- "mkiss: %s: Switchting to crc-smack\n",
+ "mkiss: %s: Switching to crc-smack\n",
ax->dev->name);
ax->crcmode = CRC_MODE_SMACK;
}
*ax->rbuff &= ~0x80;
} else if (ax->rbuff[0] & 0x20) {
if (check_crc_flex(ax->rbuff, ax->rcount) < 0) {
- ax->stats.rx_errors++;
+ ax->dev->stats.rx_errors++;
spin_unlock_bh(&ax->buflock);
return;
}
if (ax->crcmode != CRC_MODE_FLEX && ax->crcauto) {
printk(KERN_INFO
- "mkiss: %s: Switchting to crc-flexnet\n",
+ "mkiss: %s: Switching to crc-flexnet\n",
ax->dev->name);
ax->crcmode = CRC_MODE_FLEX;
}
if ((skb = dev_alloc_skb(count)) == NULL) {
printk(KERN_ERR "mkiss: %s: memory squeeze, dropping packet.\n",
ax->dev->name);
- ax->stats.rx_dropped++;
+ ax->dev->stats.rx_dropped++;
spin_unlock_bh(&ax->buflock);
return;
}
memcpy(skb_put(skb,count), ax->rbuff, count);
skb->protocol = ax25_type_trans(skb, ax->dev);
netif_rx(skb);
- ax->dev->last_rx = jiffies;
- ax->stats.rx_packets++;
- ax->stats.rx_bytes += count;
+ ax->dev->stats.rx_packets++;
+ ax->dev->stats.rx_bytes += count;
spin_unlock_bh(&ax->buflock);
}
return;
}
- ax->stats.rx_over_errors++;
+ ax->dev->stats.rx_over_errors++;
set_bit(AXF_ERROR, &ax->flags);
}
spin_unlock_bh(&ax->buflock);
struct sockaddr_ax25 *sa = addr;
netif_tx_lock_bh(dev);
+ netif_addr_lock(dev);
memcpy(dev->dev_addr, &sa->sax25_call, AX25_ADDR_LEN);
+ netif_addr_unlock(dev);
netif_tx_unlock_bh(dev);
return 0;
memcpy(ax->xbuff, ax->xhead, ax->xleft);
} else {
ax->xleft = 0;
- ax->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
}
}
memcpy(ax->rbuff, orbuff, ax->rcount);
} else {
ax->rcount = 0;
- ax->stats.rx_over_errors++;
+ dev->stats.rx_over_errors++;
set_bit(AXF_ERROR, &ax->flags);
}
}
if (len > ax->mtu) { /* Sigh, shouldn't occur BUT ... */
len = ax->mtu;
printk(KERN_ERR "mkiss: %s: truncating oversized transmit packet!\n", ax->dev->name);
- ax->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
netif_start_queue(dev);
return;
}
set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags);
actual = ax->tty->ops->write(ax->tty, ax->xbuff, count);
- ax->stats.tx_packets++;
- ax->stats.tx_bytes += actual;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += actual;
ax->dev->trans_start = jiffies;
ax->xleft = count - actual;
}
/* Encapsulate an AX.25 packet and kick it into a TTY queue. */
-static int ax_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t ax_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct mkiss *ax = netdev_priv(dev);
if (!netif_running(dev)) {
printk(KERN_ERR "mkiss: %s: xmit call when iface is down\n", dev->name);
- return 1;
+ return NETDEV_TX_BUSY;
}
if (netif_queue_stopped(dev)) {
*/
if (time_before(jiffies, dev->trans_start + 20 * HZ)) {
/* 20 sec timeout not reached */
- return 1;
+ return NETDEV_TX_BUSY;
}
printk(KERN_ERR "mkiss: %s: transmit timed out, %s?\n", dev->name,
- (ax->tty->ops->chars_in_buffer(ax->tty) || ax->xleft) ?
+ (tty_chars_in_buffer(ax->tty) || ax->xleft) ?
"bad line quality" : "driver error");
ax->xleft = 0;
kfree_skb(skb);
}
- return 0;
+ return NETDEV_TX_OK;
}
static int ax_open_dev(struct net_device *dev)
return 0;
}
-static struct net_device_stats *ax_get_stats(struct net_device *dev)
-{
- struct mkiss *ax = netdev_priv(dev);
-
- return &ax->stats;
-}
-
static const struct header_ops ax_header_ops = {
.create = ax_header,
.rebuild = ax_rebuild_header,
};
+static const struct net_device_ops ax_netdev_ops = {
+ .ndo_open = ax_open_dev,
+ .ndo_stop = ax_close,
+ .ndo_start_xmit = ax_xmit,
+ .ndo_set_mac_address = ax_set_mac_address,
+};
+
static void ax_setup(struct net_device *dev)
{
/* Finish setting up the DEVICE info. */
dev->mtu = AX_MTU;
- dev->hard_start_xmit = ax_xmit;
- dev->open = ax_open_dev;
- dev->stop = ax_close;
- dev->get_stats = ax_get_stats;
- dev->set_mac_address = ax_set_mac_address;
dev->hard_header_len = 0;
dev->addr_len = 0;
dev->type = ARPHRD_AX25;
dev->tx_queue_len = 10;
dev->header_ops = &ax_header_ops;
+ dev->netdev_ops = &ax_netdev_ops;
memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN);
spin_lock_init(&ax->buflock);
atomic_set(&ax->refcnt, 1);
- init_MUTEX_LOCKED(&ax->dead_sem);
+ sema_init(&ax->dead_sem, 0);
ax->tty = tty;
tty->disc_data = ax;
unsigned int cmd, unsigned long arg)
{
struct mkiss *ax = mkiss_get(tty);
- struct net_device *dev = ax->dev;
+ struct net_device *dev;
unsigned int tmp, err;
/* First make sure we're connected. */
if (ax == NULL)
return -ENXIO;
+ dev = ax->dev;
switch (cmd) {
case SIOCGIFNAME:
return err;
}
+#ifdef CONFIG_COMPAT
+static long mkiss_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 mkiss_ioctl(tty, file, cmd,
+ (unsigned long)compat_ptr(arg));
+ }
+
+ return -ENOIOCTLCMD;
+}
+#endif
+
/*
* Handle the 'receiver data ready' interrupt.
* This function is called by the 'tty_io' module in the kernel when
while (count--) {
if (fp != NULL && *fp++) {
if (!test_and_set_bit(AXF_ERROR, &ax->flags))
- ax->stats.rx_errors++;
+ ax->dev->stats.rx_errors++;
cp++;
continue;
}
.open = mkiss_open,
.close = mkiss_close,
.ioctl = mkiss_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = mkiss_compat_ioctl,
+#endif
.receive_buf = mkiss_receive_buf,
.write_wakeup = mkiss_write_wakeup
};
-static char banner[] __initdata = KERN_INFO \
+static const char banner[] __initdata = KERN_INFO \
"mkiss: AX.25 Multikiss, Hans Albas PE1AYX\n";
-static char msg_regfail[] __initdata = KERN_ERR \
+static const char msg_regfail[] __initdata = KERN_ERR \
"mkiss: can't register line discipline (err = %d)\n";
static int __init mkiss_init_driver(void)
printk(banner);
- if ((status = tty_register_ldisc(N_AX25, &ax_ldisc)) != 0)
- printk(msg_regfail);
+ status = tty_register_ldisc(N_AX25, &ax_ldisc);
+ if (status != 0)
+ printk(msg_regfail, status);
return status;
}
Code Review / linux-2.6.git / blobdiff