diff options
Diffstat (limited to 'drivers/net/hamradio/scc.c')
| -rw-r--r-- | drivers/net/hamradio/scc.c | 92 |
1 files changed, 48 insertions, 44 deletions
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c index 6c03932d8a6b..ae5048efde68 100644 --- a/drivers/net/hamradio/scc.c +++ b/drivers/net/hamradio/scc.c @@ -7,7 +7,7 @@ * ------------------ * * You can find a subset of the documentation in - * Documentation/networking/z8530drv.txt. + * Documentation/networking/device_drivers/hamradio/z8530drv.rst. */ /* @@ -148,6 +148,7 @@ /* ----------------------------------------------------------------------- */ +#include <linux/compat.h> #include <linux/module.h> #include <linux/errno.h> #include <linux/signal.h> @@ -210,7 +211,8 @@ static int scc_net_close(struct net_device *dev); static void scc_net_rx(struct scc_channel *scc, struct sk_buff *skb); static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev); -static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); +static int scc_net_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd); static int scc_net_set_mac_address(struct net_device *dev, void *addr); static struct net_device_stats * scc_net_get_stats(struct net_device *dev); @@ -300,12 +302,12 @@ static inline void scc_discard_buffers(struct scc_channel *scc) spin_lock_irqsave(&scc->lock, flags); if (scc->tx_buff != NULL) { - dev_kfree_skb(scc->tx_buff); + dev_kfree_skb_irq(scc->tx_buff); scc->tx_buff = NULL; } while (!skb_queue_empty(&scc->tx_queue)) - dev_kfree_skb(skb_dequeue(&scc->tx_queue)); + dev_kfree_skb_irq(skb_dequeue(&scc->tx_queue)); spin_unlock_irqrestore(&scc->lock, flags); } @@ -792,8 +794,8 @@ static inline void init_brg(struct scc_channel *scc) static void init_channel(struct scc_channel *scc) { - del_timer(&scc->tx_t); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_t); + timer_delete(&scc->tx_wdog); disable_irq(scc->irq); @@ -997,7 +999,7 @@ static void __scc_start_tx_timer(struct scc_channel *scc, void (*handler)(struct timer_list *t), unsigned long when) { - del_timer(&scc->tx_t); + timer_delete(&scc->tx_t); if (when == 0) { @@ -1027,7 +1029,7 @@ static void scc_start_defer(struct scc_channel *scc) unsigned long flags; spin_lock_irqsave(&scc->lock, flags); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_wdog); if (scc->kiss.maxdefer != 0 && scc->kiss.maxdefer != TIMER_OFF) { @@ -1043,7 +1045,7 @@ static void scc_start_maxkeyup(struct scc_channel *scc) unsigned long flags; spin_lock_irqsave(&scc->lock, flags); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_wdog); if (scc->kiss.maxkeyup != 0 && scc->kiss.maxkeyup != TIMER_OFF) { @@ -1125,7 +1127,7 @@ static inline int is_grouped(struct scc_channel *scc) static void t_dwait(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_t); + struct scc_channel *scc = timer_container_of(scc, t, tx_t); if (scc->stat.tx_state == TXS_WAIT) /* maxkeyup or idle timeout */ { @@ -1167,7 +1169,7 @@ static void t_dwait(struct timer_list *t) static void t_txdelay(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_t); + struct scc_channel *scc = timer_container_of(scc, t, tx_t); scc_start_maxkeyup(scc); @@ -1188,22 +1190,22 @@ static void t_txdelay(struct timer_list *t) static void t_tail(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_t); + struct scc_channel *scc = timer_container_of(scc, t, tx_t); unsigned long flags; spin_lock_irqsave(&scc->lock, flags); - del_timer(&scc->tx_wdog); - scc_key_trx(scc, TX_OFF); + timer_delete(&scc->tx_wdog); + scc_key_trx(scc, TX_OFF); spin_unlock_irqrestore(&scc->lock, flags); - if (scc->stat.tx_state == TXS_TIMEOUT) /* we had a timeout? */ - { - scc->stat.tx_state = TXS_WAIT; + if (scc->stat.tx_state == TXS_TIMEOUT) /* we had a timeout? */ + { + scc->stat.tx_state = TXS_WAIT; scc_start_tx_timer(scc, t_dwait, scc->kiss.mintime*100); - return; - } - - scc->stat.tx_state = TXS_IDLE; + return; + } + + scc->stat.tx_state = TXS_IDLE; netif_wake_queue(scc->dev); } @@ -1215,9 +1217,9 @@ static void t_tail(struct timer_list *t) static void t_busy(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_wdog); + struct scc_channel *scc = timer_container_of(scc, t, tx_wdog); - del_timer(&scc->tx_t); + timer_delete(&scc->tx_t); netif_stop_queue(scc->dev); /* don't pile on the wabbit! */ scc_discard_buffers(scc); @@ -1234,7 +1236,7 @@ static void t_busy(struct timer_list *t) static void t_maxkeyup(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_wdog); + struct scc_channel *scc = timer_container_of(scc, t, tx_wdog); unsigned long flags; spin_lock_irqsave(&scc->lock, flags); @@ -1246,7 +1248,7 @@ static void t_maxkeyup(struct timer_list *t) netif_stop_queue(scc->dev); scc_discard_buffers(scc); - del_timer(&scc->tx_t); + timer_delete(&scc->tx_t); cl(scc, R1, TxINT_ENAB); /* force an ABORT, but don't */ cl(scc, R15, TxUIE); /* count it. */ @@ -1268,9 +1270,9 @@ static void t_maxkeyup(struct timer_list *t) static void t_idle(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_t); + struct scc_channel *scc = timer_container_of(scc, t, tx_t); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_wdog); scc_key_trx(scc, TX_OFF); if(scc->kiss.mintime) @@ -1401,11 +1403,11 @@ static unsigned long scc_get_param(struct scc_channel *scc, unsigned int cmd) static void scc_stop_calibrate(struct timer_list *t) { - struct scc_channel *scc = from_timer(scc, t, tx_wdog); + struct scc_channel *scc = timer_container_of(scc, t, tx_wdog); unsigned long flags; spin_lock_irqsave(&scc->lock, flags); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_wdog); scc_key_trx(scc, TX_OFF); wr(scc, R6, 0); wr(scc, R7, FLAG); @@ -1426,7 +1428,7 @@ scc_start_calibrate(struct scc_channel *scc, int duration, unsigned char pattern netif_stop_queue(scc->dev); scc_discard_buffers(scc); - del_timer(&scc->tx_wdog); + timer_delete(&scc->tx_wdog); scc->tx_wdog.function = scc_stop_calibrate; scc->tx_wdog.expires = jiffies + HZ*duration; @@ -1458,6 +1460,7 @@ scc_start_calibrate(struct scc_channel *scc, int duration, unsigned char pattern static void z8530_init(void) { + const unsigned int nr_irqs = irq_get_nr_irqs(); struct scc_channel *scc; int chip, k; unsigned long flags; @@ -1550,7 +1553,7 @@ static const struct net_device_ops scc_netdev_ops = { .ndo_start_xmit = scc_net_tx, .ndo_set_mac_address = scc_net_set_mac_address, .ndo_get_stats = scc_net_get_stats, - .ndo_do_ioctl = scc_net_ioctl, + .ndo_siocdevprivate = scc_net_siocdevprivate, }; /* ----> Initialize device <----- */ @@ -1562,9 +1565,6 @@ static void scc_net_setup(struct net_device *dev) dev->netdev_ops = &scc_netdev_ops; dev->header_ops = &ax25_header_ops; - memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN); - memcpy(dev->dev_addr, &ax25_defaddr, AX25_ADDR_LEN); - dev->flags = 0; dev->type = ARPHRD_AX25; @@ -1572,6 +1572,8 @@ static void scc_net_setup(struct net_device *dev) dev->mtu = AX25_DEF_PACLEN; dev->addr_len = AX25_ADDR_LEN; + memcpy(dev->broadcast, &ax25_bcast, AX25_ADDR_LEN); + dev_addr_set(dev, (u8 *)&ax25_defaddr); } /* ----> open network device <---- */ @@ -1580,7 +1582,7 @@ static int scc_net_open(struct net_device *dev) { struct scc_channel *scc = (struct scc_channel *) dev->ml_priv; - if (!scc->init) + if (!scc->init) return -EINVAL; scc->tx_buff = NULL; @@ -1607,8 +1609,8 @@ static int scc_net_close(struct net_device *dev) wr(scc,R3,0); spin_unlock_irqrestore(&scc->lock, flags); - del_timer_sync(&scc->tx_t); - del_timer_sync(&scc->tx_wdog); + timer_delete_sync(&scc->tx_t); + timer_delete_sync(&scc->tx_wdog); scc_discard_buffers(scc); @@ -1667,7 +1669,7 @@ static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev) if (skb_queue_len(&scc->tx_queue) > scc->dev->tx_queue_len) { struct sk_buff *skb_del; skb_del = skb_dequeue(&scc->tx_queue); - dev_kfree_skb(skb_del); + dev_kfree_skb_irq(skb_del); } skb_queue_tail(&scc->tx_queue, skb); netif_trans_update(dev); @@ -1703,7 +1705,8 @@ static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev) * SIOCSCCCAL - send calib. pattern arg: (struct scc_calibrate *) arg */ -static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int scc_net_siocdevprivate(struct net_device *dev, + struct ifreq *ifr, void __user *arg, int cmd) { struct scc_kiss_cmd kiss_cmd; struct scc_mem_config memcfg; @@ -1712,8 +1715,6 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) struct scc_channel *scc = (struct scc_channel *) dev->ml_priv; int chan; unsigned char device_name[IFNAMSIZ]; - void __user *arg = ifr->ifr_data; - if (!Driver_Initialized) { @@ -1722,6 +1723,9 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) int found = 1; if (!capable(CAP_SYS_RAWIO)) return -EPERM; + if (in_compat_syscall()) + return -EOPNOTSUPP; + if (!arg) return -EFAULT; if (Nchips >= SCC_MAXCHIPS) @@ -1732,7 +1736,7 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (hwcfg.irq == 2) hwcfg.irq = 9; - if (hwcfg.irq < 0 || hwcfg.irq >= nr_irqs) + if (hwcfg.irq < 0 || hwcfg.irq >= irq_get_nr_irqs()) return -EINVAL; if (!Ivec[hwcfg.irq].used && hwcfg.irq) @@ -1948,7 +1952,7 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static int scc_net_set_mac_address(struct net_device *dev, void *addr) { struct sockaddr *sa = (struct sockaddr *) addr; - memcpy(dev->dev_addr, sa->sa_data, dev->addr_len); + dev_addr_set(dev, sa->sa_data); return 0; } @@ -2114,6 +2118,7 @@ static int __init scc_init_driver (void) static void __exit scc_cleanup_driver(void) { + const unsigned int nr_irqs = irq_get_nr_irqs(); io_port ctrl; int k; struct scc_channel *scc; @@ -2167,7 +2172,6 @@ static void __exit scc_cleanup_driver(void) MODULE_AUTHOR("Joerg Reuter <jreuter@yaina.de>"); MODULE_DESCRIPTION("AX.25 Device Driver for Z8530 based HDLC cards"); -MODULE_SUPPORTED_DEVICE("Z8530 based SCC cards for Amateur Radio"); MODULE_LICENSE("GPL"); module_init(scc_init_driver); module_exit(scc_cleanup_driver); |