diff options
| -rw-r--r-- | drivers/net/can/dev.c | 4 | ||||
| -rw-r--r-- | drivers/net/can/slcan.c | 4 | ||||
| -rw-r--r-- | include/linux/can/skb.h | 10 | ||||
| -rw-r--r-- | net/can/bcm.c | 8 | ||||
| -rw-r--r-- | net/can/gw.c | 4 | ||||
| -rw-r--r-- | net/can/raw.c | 4 |
6 files changed, 21 insertions, 13 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 59ada082a99..f9cba4123c6 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -512,8 +512,8 @@ struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf) skb->pkt_type = PACKET_BROADCAST; skb->ip_summed = CHECKSUM_UNNECESSARY; - skb_reserve(skb, sizeof(struct can_skb_priv)); - ((struct can_skb_priv *)(skb->head))->ifindex = dev->ifindex; + can_skb_reserve(skb); + can_skb_prv(skb)->ifindex = dev->ifindex; *cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame)); memset(*cf, 0, sizeof(struct can_frame)); diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index e79a8d10e0f..06b7e097d36 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -195,8 +195,8 @@ static void slc_bump(struct slcan *sl) skb->pkt_type = PACKET_BROADCAST; skb->ip_summed = CHECKSUM_UNNECESSARY; - skb_reserve(skb, sizeof(struct can_skb_priv)); - ((struct can_skb_priv *)(skb->head))->ifindex = sl->dev->ifindex; + can_skb_reserve(skb); + can_skb_prv(skb)->ifindex = sl->dev->ifindex; memcpy(skb_put(skb, sizeof(struct can_frame)), &cf, sizeof(struct can_frame)); diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h index 4b0f24d3a87..2f0543f7510 100644 --- a/include/linux/can/skb.h +++ b/include/linux/can/skb.h @@ -32,4 +32,14 @@ struct can_skb_priv { struct can_frame cf[0]; }; +static inline struct can_skb_priv *can_skb_prv(struct sk_buff *skb) +{ + return (struct can_skb_priv *)(skb->head); +} + +static inline void can_skb_reserve(struct sk_buff *skb) +{ + skb_reserve(skb, sizeof(struct can_skb_priv)); +} + #endif /* CAN_SKB_H */ diff --git a/net/can/bcm.c b/net/can/bcm.c index ccc27b9e838..28e12d18f0f 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -261,8 +261,8 @@ static void bcm_can_tx(struct bcm_op *op) if (!skb) goto out; - skb_reserve(skb, sizeof(struct can_skb_priv)); - ((struct can_skb_priv *)(skb->head))->ifindex = dev->ifindex; + can_skb_reserve(skb); + can_skb_prv(skb)->ifindex = dev->ifindex; memcpy(skb_put(skb, CFSIZ), cf, CFSIZ); @@ -1207,7 +1207,7 @@ static int bcm_tx_send(struct msghdr *msg, int ifindex, struct sock *sk) if (!skb) return -ENOMEM; - skb_reserve(skb, sizeof(struct can_skb_priv)); + can_skb_reserve(skb); err = memcpy_fromiovec(skb_put(skb, CFSIZ), msg->msg_iov, CFSIZ); if (err < 0) { @@ -1221,7 +1221,7 @@ static int bcm_tx_send(struct msghdr *msg, int ifindex, struct sock *sk) return -ENODEV; } - ((struct can_skb_priv *)(skb->head))->ifindex = dev->ifindex; + can_skb_prv(skb)->ifindex = dev->ifindex; skb->dev = dev; skb->sk = sk; err = can_send(skb, 1); /* send with loopback */ diff --git a/net/can/gw.c b/net/can/gw.c index acdd4656cc3..c185fcd5e82 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -381,9 +381,7 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data) /* is sending the skb back to the incoming interface not allowed? */ if (!(gwj->flags & CGW_FLAGS_CAN_IIF_TX_OK) && - skb_headroom(skb) == sizeof(struct can_skb_priv) && - (((struct can_skb_priv *)(skb->head))->ifindex == - gwj->dst.dev->ifindex)) + can_skb_prv(skb)->ifindex == gwj->dst.dev->ifindex) return; /* diff --git a/net/can/raw.c b/net/can/raw.c index 5d860e8dcc5..c1764e41dda 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -705,8 +705,8 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock, if (!skb) goto put_dev; - skb_reserve(skb, sizeof(struct can_skb_priv)); - ((struct can_skb_priv *)(skb->head))->ifindex = dev->ifindex; + can_skb_reserve(skb); + can_skb_prv(skb)->ifindex = dev->ifindex; err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size); if (err < 0) |