diff options
| author |   Stephane Grosjean <s.grosjean@peak-system.com> | 2014-01-15 09:50:13 +0100 |
|---|---|---|
| committer |   Marc Kleine-Budde <mkl@pengutronix.de> | 2014-02-04 09:34:33 +0100 |
| commit | cb2518ca9f06dfcfa3d175773631bfb1e461bdc7 (patch) | |
| tree | 862c310c2fd5b765526ec112ae12c508e4fdab65 /drivers/net/can | |
| parent | can: add explicit copyrights to can userspace header (diff) | |
| download | linux-dev-cb2518ca9f06dfcfa3d175773631bfb1e461bdc7.tar.xz linux-dev-cb2518ca9f06dfcfa3d175773631bfb1e461bdc7.zip | |
can: add ability to allocate CANFD frame in skb data
This patch adds the ability of allocating a CANFD frame data structure in the
skb data area.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/dev.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 13a909822e25..cb584ea00331 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -521,6 +521,30 @@ struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf) } EXPORT_SYMBOL_GPL(alloc_can_skb); +struct sk_buff *alloc_canfd_skb(struct net_device *dev, + struct canfd_frame **cfd) +{ + struct sk_buff *skb; + + skb = netdev_alloc_skb(dev, sizeof(struct can_skb_priv) + + sizeof(struct canfd_frame)); + if (unlikely(!skb)) + return NULL; + + skb->protocol = htons(ETH_P_CANFD); + skb->pkt_type = PACKET_BROADCAST; + skb->ip_summed = CHECKSUM_UNNECESSARY; + + can_skb_reserve(skb); + can_skb_prv(skb)->ifindex = dev->ifindex; + + *cfd = (struct canfd_frame *)skb_put(skb, sizeof(struct canfd_frame)); + memset(*cfd, 0, sizeof(struct canfd_frame)); + + return skb; +} +EXPORT_SYMBOL_GPL(alloc_canfd_skb); + struct sk_buff *alloc_can_err_skb(struct net_device *dev, struct can_frame **cf) { struct sk_buff *skb; |