diff options
Diffstat (limited to 'drivers/net/can/sja1000')
| -rw-r--r-- | drivers/net/can/sja1000/sja1000.c | 19 | ||||
| -rw-r--r-- | drivers/net/can/sja1000/sja1000.h | 2 |
2 files changed, 7 insertions, 14 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 16d2ecd..b4ba88a 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -296,11 +296,9 @@ static void sja1000_rx(struct net_device *dev) uint8_t dlc; int i; - skb = dev_alloc_skb(sizeof(struct can_frame)); + skb = alloc_can_skb(dev, &cf); if (skb == NULL) return; - skb->dev = dev; - skb->protocol = htons(ETH_P_CAN); fi = priv->read_reg(priv, REG_FI); dlc = fi & 0x0F; @@ -323,8 +321,6 @@ static void sja1000_rx(struct net_device *dev) if (fi & FI_RTR) id |= CAN_RTR_FLAG; - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); cf->can_id = id; cf->can_dlc = dlc; for (i = 0; i < dlc; i++) @@ -351,15 +347,9 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) enum can_state state = priv->can.state; uint8_t ecc, alc; - skb = dev_alloc_skb(sizeof(struct can_frame)); + skb = alloc_can_err_skb(dev, &cf); if (skb == NULL) return -ENOMEM; - skb->dev = dev; - skb->protocol = htons(ETH_P_CAN); - cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); - memset(cf, 0, sizeof(struct can_frame)); - cf->can_id = CAN_ERR_FLAG; - cf->can_dlc = CAN_ERR_DLC; if (isrc & IRQ_DOI) { /* data overrun interrupt */ @@ -526,7 +516,7 @@ static int sja1000_open(struct net_device *dev) /* register interrupt handler, if not done by the device driver */ if (!(priv->flags & SJA1000_CUSTOM_IRQ_HANDLER)) { - err = request_irq(dev->irq, &sja1000_interrupt, priv->irq_flags, + err = request_irq(dev->irq, sja1000_interrupt, priv->irq_flags, dev->name, (void *)dev); if (err) { close_candev(dev); @@ -565,7 +555,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv) struct net_device *dev; struct sja1000_priv *priv; - dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv); + dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv, + SJA1000_ECHO_SKB_MAX); if (!dev) return NULL; diff --git a/drivers/net/can/sja1000/sja1000.h b/drivers/net/can/sja1000/sja1000.h index 302d2c7..97a622b 100644 --- a/drivers/net/can/sja1000/sja1000.h +++ b/drivers/net/can/sja1000/sja1000.h @@ -50,6 +50,8 @@ #include <linux/can/dev.h> #include <linux/can/platform/sja1000.h> +#define SJA1000_ECHO_SKB_MAX 1 /* the SJA1000 has one TX buffer object */ + #define SJA1000_MAX_IRQ 20 /* max. number of interrupts handled in ISR */ /* SJA1000 registers - manual section 6.4 (Pelican Mode) */ |