diff options
Diffstat (limited to 'drivers/net/wan/x25_asy.c')
| -rw-r--r-- | drivers/net/wan/x25_asy.c | 430 |
1 files changed, 217 insertions, 213 deletions
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index 0f8aca8a4d4..fa9fdfa128c 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -14,10 +14,11 @@ * 2000-10-29 Henner Eisen lapb_data_indication() return status. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> -#include <asm/system.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/bitops.h> #include <linux/string.h> #include <linux/mm.h> @@ -29,12 +30,13 @@ #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/if_arp.h> -#include <linux/x25.h> #include <linux/lapb.h> #include <linux/init.h> -#include "x25_asy.h" - +#include <linux/rtnetlink.h> +#include <linux/compat.h> +#include <linux/slab.h> #include <net/x25device.h> +#include "x25_asy.h" static struct net_device **x25_asy_devs; static int x25_asy_maxdev = SL_NRUNIT; @@ -63,7 +65,7 @@ static struct x25_asy *x25_asy_alloc(void) if (dev == NULL) break; - sl = dev->priv; + sl = netdev_priv(dev); /* Not in use ? */ if (!test_and_set_bit(SLF_INUSE, &sl->flags)) return sl; @@ -85,7 +87,7 @@ static struct x25_asy *x25_asy_alloc(void) return NULL; /* Initialize channel control data */ - sl = dev->priv; + sl = netdev_priv(dev); dev->base_addr = i; /* register device so that it can be ifconfig'ed */ @@ -95,7 +97,7 @@ static struct x25_asy *x25_asy_alloc(void) x25_asy_devs[i] = dev; return sl; } else { - printk("x25_asy_alloc() - register_netdev() failure.\n"); + pr_warn("%s(): register_netdev() failure\n", __func__); free_netdev(dev); } } @@ -112,24 +114,24 @@ static void x25_asy_free(struct x25_asy *sl) kfree(sl->xbuff); sl->xbuff = NULL; - if (!test_and_clear_bit(SLF_INUSE, &sl->flags)) { - printk("%s: x25_asy_free for already free unit.\n", sl->dev->name); - } + if (!test_and_clear_bit(SLF_INUSE, &sl->flags)) + netdev_err(sl->dev, "x25_asy_free for already free unit\n"); } static int x25_asy_change_mtu(struct net_device *dev, int newmtu) { - struct x25_asy *sl = dev->priv; + struct x25_asy *sl = netdev_priv(dev); unsigned char *xbuff, *rbuff; - int len = 2* newmtu; + int len; + if (newmtu > 65534) + return -EINVAL; + + len = 2 * newmtu; xbuff = kmalloc(len + 4, GFP_ATOMIC); rbuff = kmalloc(len + 4, GFP_ATOMIC); - if (xbuff == NULL || rbuff == NULL) - { - printk("%s: unable to grow X.25 buffers, MTU change cancelled.\n", - dev->name); + if (xbuff == NULL || rbuff == NULL) { kfree(xbuff); kfree(rbuff); return -ENOMEM; @@ -142,7 +144,7 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu) memcpy(sl->xbuff, sl->xhead, sl->xleft); } else { sl->xleft = 0; - sl->stats.tx_dropped++; + dev->stats.tx_dropped++; } } sl->xhead = sl->xbuff; @@ -153,7 +155,7 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu) memcpy(sl->rbuff, rbuff, sl->rcount); } else { sl->rcount = 0; - sl->stats.rx_over_errors++; + dev->stats.rx_over_errors++; set_bit(SLF_ERROR, &sl->flags); } } @@ -188,33 +190,30 @@ static inline void x25_asy_unlock(struct x25_asy *sl) static void x25_asy_bump(struct x25_asy *sl) { + struct net_device *dev = sl->dev; struct sk_buff *skb; int count; int err; count = sl->rcount; - sl->stats.rx_bytes+=count; - + dev->stats.rx_bytes += count; + skb = dev_alloc_skb(count+1); - if (skb == NULL) - { - printk("%s: memory squeeze, dropping packet.\n", sl->dev->name); - sl->stats.rx_dropped++; + if (skb == NULL) { + netdev_warn(sl->dev, "memory squeeze, dropping packet\n"); + dev->stats.rx_dropped++; return; } - skb_push(skb,1); /* LAPB internal control */ - memcpy(skb_put(skb,count), sl->rbuff, count); + skb_push(skb, 1); /* LAPB internal control */ + memcpy(skb_put(skb, count), sl->rbuff, count); skb->protocol = x25_type_trans(skb, sl->dev); - if((err=lapb_data_received(skb->dev, skb))!=LAPB_OK) - { + err = lapb_data_received(skb->dev, skb); + if (err != LAPB_OK) { kfree_skb(skb); - printk(KERN_DEBUG "x25_asy: data received err - %d\n",err); - } - else - { + printk(KERN_DEBUG "x25_asy: data received err - %d\n", err); + } else { netif_rx(skb); - sl->dev->last_rx = jiffies; - sl->stats.rx_packets++; + dev->stats.rx_packets++; } } @@ -224,17 +223,18 @@ static void x25_asy_encaps(struct x25_asy *sl, unsigned char *icp, int len) unsigned char *p; int actual, count, mtu = sl->dev->mtu; - if (len > mtu) - { /* Sigh, shouldn't occur BUT ... */ + if (len > mtu) { + /* Sigh, shouldn't occur BUT ... */ len = mtu; - printk ("%s: truncating oversized transmit packet!\n", sl->dev->name); - sl->stats.tx_dropped++; + printk(KERN_DEBUG "%s: truncating oversized transmit packet!\n", + sl->dev->name); + sl->dev->stats.tx_dropped++; x25_asy_unlock(sl); return; } p = icp; - count = x25_asy_esc(p, (unsigned char *) sl->xbuff, len); + count = x25_asy_esc(p, sl->xbuff, len); /* Order of next two lines is *very* important. * When we are sending a little amount of data, @@ -244,8 +244,8 @@ static void x25_asy_encaps(struct x25_asy *sl, unsigned char *icp, int len) * if we did not request it before write operation. * 14 Oct 1994 Dmitry Gorodchanin. */ - sl->tty->flags |= (1 << TTY_DO_WRITE_WAKEUP); - actual = sl->tty->driver->write(sl->tty, sl->xbuff, count); + set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); + actual = sl->tty->ops->write(sl->tty, sl->xbuff, count); sl->xleft = count - actual; sl->xhead = sl->xbuff + actual; /* VSV */ @@ -259,41 +259,40 @@ static void x25_asy_encaps(struct x25_asy *sl, unsigned char *icp, int len) static void x25_asy_write_wakeup(struct tty_struct *tty) { int actual; - struct x25_asy *sl = (struct x25_asy *) tty->disc_data; + struct x25_asy *sl = tty->disc_data; /* First make sure we're connected. */ if (!sl || sl->magic != X25_ASY_MAGIC || !netif_running(sl->dev)) return; - if (sl->xleft <= 0) - { + if (sl->xleft <= 0) { /* Now serial buffer is almost free & we can start * transmission of another packet */ - sl->stats.tx_packets++; - tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP); + sl->dev->stats.tx_packets++; + clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); x25_asy_unlock(sl); return; } - actual = tty->driver->write(tty, sl->xhead, sl->xleft); + actual = tty->ops->write(tty, sl->xhead, sl->xleft); sl->xleft -= actual; sl->xhead += actual; } static void x25_asy_timeout(struct net_device *dev) { - struct x25_asy *sl = (struct x25_asy*)(dev->priv); + struct x25_asy *sl = netdev_priv(dev); spin_lock(&sl->lock); if (netif_queue_stopped(dev)) { /* May be we must check transmitter timeout here ? * 14 Oct 1994 Dmitry Gorodchanin. */ - printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name, - (sl->tty->driver->chars_in_buffer(sl->tty) || sl->xleft) ? - "bad line quality" : "driver error"); + netdev_warn(dev, "transmit timed out, %s?\n", + (tty_chars_in_buffer(sl->tty) || sl->xleft) ? + "bad line quality" : "driver error"); sl->xleft = 0; - sl->tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP); + clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); x25_asy_unlock(sl); } spin_unlock(&sl->lock); @@ -301,33 +300,38 @@ static void x25_asy_timeout(struct net_device *dev) /* Encapsulate an IP datagram and kick it into a TTY queue. */ -static int x25_asy_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t x25_asy_xmit(struct sk_buff *skb, + struct net_device *dev) { - struct x25_asy *sl = (struct x25_asy*)(dev->priv); + struct x25_asy *sl = netdev_priv(dev); int err; if (!netif_running(sl->dev)) { - printk("%s: xmit call when iface is down\n", dev->name); + netdev_err(dev, "xmit call when iface is down\n"); kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } - - switch(skb->data[0]) - { - case 0x00:break; - case 0x01: /* Connection request .. do nothing */ - if((err=lapb_connect_request(dev))!=LAPB_OK) - printk(KERN_ERR "x25_asy: lapb_connect_request error - %d\n", err); - kfree_skb(skb); - return 0; - case 0x02: /* Disconnect request .. do nothing - hang up ?? */ - if((err=lapb_disconnect_request(dev))!=LAPB_OK) - printk(KERN_ERR "x25_asy: lapb_disconnect_request error - %d\n", err); - default: - kfree_skb(skb); - return 0; + + switch (skb->data[0]) { + case X25_IFACE_DATA: + break; + case X25_IFACE_CONNECT: /* Connection request .. do nothing */ + err = lapb_connect_request(dev); + if (err != LAPB_OK) + netdev_err(dev, "lapb_connect_request error: %d\n", + err); + kfree_skb(skb); + return NETDEV_TX_OK; + case X25_IFACE_DISCONNECT: /* do nothing - hang up ?? */ + err = lapb_disconnect_request(dev); + if (err != LAPB_OK) + netdev_err(dev, "lapb_disconnect_request error: %d\n", + err); + default: + kfree_skb(skb); + return NETDEV_TX_OK; } - skb_pull(skb,1); /* Remove control byte */ + skb_pull(skb, 1); /* Remove control byte */ /* * If we are busy already- too bad. We ought to be able * to queue things at this point, to allow for a little @@ -338,14 +342,14 @@ static int x25_asy_xmit(struct sk_buff *skb, struct net_device *dev) * So, no queues ! * 14 Oct 1994 Dmitry Gorodchanin. */ - - if((err=lapb_data_request(dev,skb))!=LAPB_OK) - { - printk(KERN_ERR "lapbeth: lapb_data_request error - %d\n", err); + + err = lapb_data_request(dev, skb); + if (err != LAPB_OK) { + netdev_err(dev, "lapb_data_request error: %d\n", err); kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } - return 0; + return NETDEV_TX_OK; } @@ -357,10 +361,9 @@ static int x25_asy_xmit(struct sk_buff *skb, struct net_device *dev) * Called when I frame data arrives. We did the work above - throw it * at the net layer. */ - + static int x25_asy_data_indication(struct net_device *dev, struct sk_buff *skb) { - skb->dev->last_rx = jiffies; return netif_rx(skb); } @@ -369,24 +372,22 @@ static int x25_asy_data_indication(struct net_device *dev, struct sk_buff *skb) * busy cases too well. Its tricky to see how to do this nicely - * perhaps lapb should allow us to bounce this ? */ - + static void x25_asy_data_transmit(struct net_device *dev, struct sk_buff *skb) { - struct x25_asy *sl=dev->priv; - + struct x25_asy *sl = netdev_priv(dev); + spin_lock(&sl->lock); - if (netif_queue_stopped(sl->dev) || sl->tty == NULL) - { + if (netif_queue_stopped(sl->dev) || sl->tty == NULL) { spin_unlock(&sl->lock); - printk(KERN_ERR "x25_asy: tbusy drop\n"); + netdev_err(dev, "tbusy drop\n"); kfree_skb(skb); return; } /* We were not busy, so we are now... :-) */ - if (skb != NULL) - { + if (skb != NULL) { x25_asy_lock(sl); - sl->stats.tx_bytes+=skb->len; + dev->stats.tx_bytes += skb->len; x25_asy_encaps(sl, skb->data, skb->len); dev_kfree_skb(skb); } @@ -396,60 +397,59 @@ static void x25_asy_data_transmit(struct net_device *dev, struct sk_buff *skb) /* * LAPB connection establish/down information. */ - + static void x25_asy_connected(struct net_device *dev, int reason) { - struct x25_asy *sl = dev->priv; + struct x25_asy *sl = netdev_priv(dev); struct sk_buff *skb; unsigned char *ptr; - if ((skb = dev_alloc_skb(1)) == NULL) { - printk(KERN_ERR "lapbeth: out of memory\n"); + skb = dev_alloc_skb(1); + if (skb == NULL) { + netdev_err(dev, "out of memory\n"); return; } ptr = skb_put(skb, 1); - *ptr = 0x01; + *ptr = X25_IFACE_CONNECT; skb->protocol = x25_type_trans(skb, sl->dev); netif_rx(skb); - sl->dev->last_rx = jiffies; } static void x25_asy_disconnected(struct net_device *dev, int reason) { - struct x25_asy *sl = dev->priv; + struct x25_asy *sl = netdev_priv(dev); struct sk_buff *skb; unsigned char *ptr; - if ((skb = dev_alloc_skb(1)) == NULL) { - printk(KERN_ERR "x25_asy: out of memory\n"); + skb = dev_alloc_skb(1); + if (skb == NULL) { + netdev_err(dev, "out of memory\n"); return; } ptr = skb_put(skb, 1); - *ptr = 0x02; + *ptr = X25_IFACE_DISCONNECT; skb->protocol = x25_type_trans(skb, sl->dev); netif_rx(skb); - sl->dev->last_rx = jiffies; } -static struct lapb_register_struct x25_asy_callbacks = { +static const struct lapb_register_struct x25_asy_callbacks = { .connect_confirmation = x25_asy_connected, .connect_indication = x25_asy_connected, .disconnect_confirmation = x25_asy_disconnected, .disconnect_indication = x25_asy_disconnected, .data_indication = x25_asy_data_indication, .data_transmit = x25_asy_data_transmit, - }; /* Open the low-level part of the X.25 channel. Easy! */ static int x25_asy_open(struct net_device *dev) { - struct x25_asy *sl = (struct x25_asy*)(dev->priv); + struct x25_asy *sl = netdev_priv(dev); unsigned long len; int err; @@ -466,13 +466,11 @@ static int x25_asy_open(struct net_device *dev) len = dev->mtu * 2; sl->rbuff = kmalloc(len + 4, GFP_KERNEL); - if (sl->rbuff == NULL) { + if (sl->rbuff == NULL) goto norbuff; - } sl->xbuff = kmalloc(len + 4, GFP_KERNEL); - if (sl->xbuff == NULL) { + if (sl->xbuff == NULL) goto noxbuff; - } sl->buffsize = len; sl->rcount = 0; @@ -480,11 +478,12 @@ static int x25_asy_open(struct net_device *dev) sl->flags &= (1 << SLF_INUSE); /* Clear ESCAPE & ERROR flags */ netif_start_queue(dev); - + /* * Now attach LAPB */ - if((err=lapb_register(dev, &x25_asy_callbacks))==LAPB_OK) + err = lapb_register(dev, &x25_asy_callbacks); + if (err == LAPB_OK) return 0; /* Cleanup */ @@ -499,18 +498,15 @@ norbuff: /* Close the low-level part of the X.25 channel. Easy! */ static int x25_asy_close(struct net_device *dev) { - struct x25_asy *sl = (struct x25_asy*)(dev->priv); - int err; + struct x25_asy *sl = netdev_priv(dev); spin_lock(&sl->lock); - if (sl->tty) - sl->tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP); + if (sl->tty) + clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); netif_stop_queue(dev); sl->rcount = 0; sl->xleft = 0; - if((err=lapb_unregister(dev))!=LAPB_OK) - printk(KERN_ERR "x25_asy_close: lapb_unregister error -%d\n",err); spin_unlock(&sl->lock); return 0; } @@ -521,10 +517,11 @@ static int x25_asy_close(struct net_device *dev) * a block of X.25 data has been received, which can now be decapsulated * and sent on to some IP layer for further processing. */ - -static void x25_asy_receive_buf(struct tty_struct *tty, const unsigned char *cp, char *fp, int count) + +static void x25_asy_receive_buf(struct tty_struct *tty, + const unsigned char *cp, char *fp, int count) { - struct x25_asy *sl = (struct x25_asy *) tty->disc_data; + struct x25_asy *sl = tty->disc_data; if (!sl || sl->magic != X25_ASY_MAGIC || !netif_running(sl->dev)) return; @@ -533,9 +530,8 @@ static void x25_asy_receive_buf(struct tty_struct *tty, const unsigned char *cp, /* Read the characters out of the buffer */ while (count--) { if (fp && *fp++) { - if (!test_and_set_bit(SLF_ERROR, &sl->flags)) { - sl->stats.rx_errors++; - } + if (!test_and_set_bit(SLF_ERROR, &sl->flags)) + sl->dev->stats.rx_errors++; cp++; continue; } @@ -553,36 +549,36 @@ static void x25_asy_receive_buf(struct tty_struct *tty, const unsigned char *cp, static int x25_asy_open_tty(struct tty_struct *tty) { - struct x25_asy *sl = (struct x25_asy *) tty->disc_data; + struct x25_asy *sl = tty->disc_data; int err; + if (tty->ops->write == NULL) + return -EOPNOTSUPP; + /* First make sure we're not already connected. */ - if (sl && sl->magic == X25_ASY_MAGIC) { + if (sl && sl->magic == X25_ASY_MAGIC) return -EEXIST; - } /* OK. Find a free X.25 channel to use. */ - if ((sl = x25_asy_alloc()) == NULL) { + sl = x25_asy_alloc(); + if (sl == NULL) return -ENFILE; - } sl->tty = tty; tty->disc_data = sl; tty->receive_room = 65536; - if (tty->driver->flush_buffer) { - tty->driver->flush_buffer(tty); - } + tty_driver_flush_buffer(tty); tty_ldisc_flush(tty); /* Restore default settings */ sl->dev->type = ARPHRD_X25; - + /* Perform the low-level X.25 async init */ - if ((err = x25_asy_open(sl->dev))) + err = x25_asy_open(sl->dev); + if (err) return err; - /* Done. We have linked the TTY line to a channel. */ - return sl->dev->base_addr; + return 0; } @@ -594,36 +590,33 @@ static int x25_asy_open_tty(struct tty_struct *tty) */ static void x25_asy_close_tty(struct tty_struct *tty) { - struct x25_asy *sl = (struct x25_asy *) tty->disc_data; + struct x25_asy *sl = tty->disc_data; + int err; /* First make sure we're connected. */ if (!sl || sl->magic != X25_ASY_MAGIC) return; + rtnl_lock(); if (sl->dev->flags & IFF_UP) - { - (void) dev_close(sl->dev); - } + dev_close(sl->dev); + rtnl_unlock(); + + err = lapb_unregister(sl->dev); + if (err != LAPB_OK) + pr_err("x25_asy_close: lapb_unregister error: %d\n", + err); tty->disc_data = NULL; sl->tty = NULL; x25_asy_free(sl); } - -static struct net_device_stats *x25_asy_get_stats(struct net_device *dev) -{ - struct x25_asy *sl = (struct x25_asy*)(dev->priv); - - return &sl->stats; -} - - /************************************************************************ * STANDARD X.25 ENCAPSULATION * ************************************************************************/ -int x25_asy_esc(unsigned char *s, unsigned char *d, int len) +static int x25_asy_esc(unsigned char *s, unsigned char *d, int len) { unsigned char *ptr = d; unsigned char c; @@ -641,59 +634,51 @@ int x25_asy_esc(unsigned char *s, unsigned char *d, int len) * character sequence, according to the X.25 protocol. */ - while (len-- > 0) - { - switch(c = *s++) - { - case X25_END: - *ptr++ = X25_ESC; - *ptr++ = X25_ESCAPE(X25_END); - break; - case X25_ESC: - *ptr++ = X25_ESC; - *ptr++ = X25_ESCAPE(X25_ESC); - break; - default: - *ptr++ = c; - break; + while (len-- > 0) { + switch (c = *s++) { + case X25_END: + *ptr++ = X25_ESC; + *ptr++ = X25_ESCAPE(X25_END); + break; + case X25_ESC: + *ptr++ = X25_ESC; + *ptr++ = X25_ESCAPE(X25_ESC); + break; + default: + *ptr++ = c; + break; } } *ptr++ = X25_END; - return (ptr - d); + return ptr - d; } static void x25_asy_unesc(struct x25_asy *sl, unsigned char s) { - switch(s) - { - case X25_END: - if (!test_and_clear_bit(SLF_ERROR, &sl->flags) && (sl->rcount > 2)) - { - x25_asy_bump(sl); - } - clear_bit(SLF_ESCAPE, &sl->flags); - sl->rcount = 0; - return; - - case X25_ESC: - set_bit(SLF_ESCAPE, &sl->flags); - return; - - case X25_ESCAPE(X25_ESC): - case X25_ESCAPE(X25_END): - if (test_and_clear_bit(SLF_ESCAPE, &sl->flags)) - s = X25_UNESCAPE(s); - break; - } - if (!test_bit(SLF_ERROR, &sl->flags)) - { - if (sl->rcount < sl->buffsize) - { + switch (s) { + case X25_END: + if (!test_and_clear_bit(SLF_ERROR, &sl->flags) && + sl->rcount > 2) + x25_asy_bump(sl); + clear_bit(SLF_ESCAPE, &sl->flags); + sl->rcount = 0; + return; + case X25_ESC: + set_bit(SLF_ESCAPE, &sl->flags); + return; + case X25_ESCAPE(X25_ESC): + case X25_ESCAPE(X25_END): + if (test_and_clear_bit(SLF_ESCAPE, &sl->flags)) + s = X25_UNESCAPE(s); + break; + } + if (!test_bit(SLF_ERROR, &sl->flags)) { + if (sl->rcount < sl->buffsize) { sl->rbuff[sl->rcount++] = s; return; } - sl->stats.rx_over_errors++; + sl->dev->stats.rx_over_errors++; set_bit(SLF_ERROR, &sl->flags); } } @@ -703,13 +688,13 @@ static void x25_asy_unesc(struct x25_asy *sl, unsigned char s) static int x25_asy_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { - struct x25_asy *sl = (struct x25_asy *) tty->disc_data; + struct x25_asy *sl = tty->disc_data; /* First make sure we're connected. */ if (!sl || sl->magic != X25_ASY_MAGIC) return -EINVAL; - switch(cmd) { + switch (cmd) { case SIOCGIFNAME: if (copy_to_user((void __user *)arg, sl->dev->name, strlen(sl->dev->name) + 1)) @@ -722,18 +707,41 @@ static int x25_asy_ioctl(struct tty_struct *tty, struct file *file, } } +#ifdef CONFIG_COMPAT +static long x25_asy_compat_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case SIOCGIFNAME: + case SIOCSIFHWADDR: + return x25_asy_ioctl(tty, file, cmd, + (unsigned long)compat_ptr(arg)); + } + + return -ENOIOCTLCMD; +} +#endif + static int x25_asy_open_dev(struct net_device *dev) { - struct x25_asy *sl = (struct x25_asy*)(dev->priv); - if(sl->tty==NULL) + struct x25_asy *sl = netdev_priv(dev); + if (sl->tty == NULL) return -ENODEV; return 0; } +static const struct net_device_ops x25_asy_netdev_ops = { + .ndo_open = x25_asy_open_dev, + .ndo_stop = x25_asy_close, + .ndo_start_xmit = x25_asy_xmit, + .ndo_tx_timeout = x25_asy_timeout, + .ndo_change_mtu = x25_asy_change_mtu, +}; + /* Initialise the X.25 driver. Called by the device init code */ static void x25_asy_setup(struct net_device *dev) { - struct x25_asy *sl = dev->priv; + struct x25_asy *sl = netdev_priv(dev); sl->magic = X25_ASY_MAGIC; sl->dev = dev; @@ -741,17 +749,12 @@ static void x25_asy_setup(struct net_device *dev) set_bit(SLF_INUSE, &sl->flags); /* - * Finish setting up the DEVICE info. + * Finish setting up the DEVICE info. */ - + dev->mtu = SL_MTU; - dev->hard_start_xmit = x25_asy_xmit; - dev->tx_timeout = x25_asy_timeout; + dev->netdev_ops = &x25_asy_netdev_ops; dev->watchdog_timeo = HZ*20; - dev->open = x25_asy_open_dev; - dev->stop = x25_asy_close; - dev->get_stats = x25_asy_get_stats; - dev->change_mtu = x25_asy_change_mtu; dev->hard_header_len = 0; dev->addr_len = 0; dev->type = ARPHRD_X25; @@ -761,13 +764,16 @@ static void x25_asy_setup(struct net_device *dev) dev->flags = IFF_NOARP; } -static struct tty_ldisc x25_ldisc = { +static struct tty_ldisc_ops x25_ldisc = { .owner = THIS_MODULE, .magic = TTY_LDISC_MAGIC, .name = "X.25", .open = x25_asy_open_tty, .close = x25_asy_close_tty, .ioctl = x25_asy_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = x25_asy_compat_ioctl, +#endif .receive_buf = x25_asy_receive_buf, .write_wakeup = x25_asy_write_wakeup, }; @@ -777,15 +783,13 @@ static int __init init_x25_asy(void) if (x25_asy_maxdev < 4) x25_asy_maxdev = 4; /* Sanity */ - printk(KERN_INFO "X.25 async: version 0.00 ALPHA " - "(dynamic channels, max=%d).\n", x25_asy_maxdev ); + pr_info("X.25 async: version 0.00 ALPHA (dynamic channels, max=%d)\n", + x25_asy_maxdev); - x25_asy_devs = kcalloc(x25_asy_maxdev, sizeof(struct net_device*), GFP_KERNEL); - if (!x25_asy_devs) { - printk(KERN_WARNING "X25 async: Can't allocate x25_asy_ctrls[] " - "array! Uaargh! (-> No X.25 available)\n"); + x25_asy_devs = kcalloc(x25_asy_maxdev, sizeof(struct net_device *), + GFP_KERNEL); + if (!x25_asy_devs) return -ENOMEM; - } return tty_register_ldisc(N_X25, &x25_ldisc); } @@ -799,10 +803,10 @@ static void __exit exit_x25_asy(void) for (i = 0; i < x25_asy_maxdev; i++) { dev = x25_asy_devs[i]; if (dev) { - struct x25_asy *sl = dev->priv; + struct x25_asy *sl = netdev_priv(dev); spin_lock_bh(&sl->lock); - if (sl->tty) + if (sl->tty) tty_hangup(sl->tty); spin_unlock_bh(&sl->lock); |