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linux-can-fixes-for-4.1-20150621

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Merge tag 'linux-can-fixes-for-4.1-20150621' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
Oliver Hartkopp fixed a bug in the generic CAN frame handling code, which may
lead to loss of CAN frames. It was introduced during v4.1 development.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 gpg: Signature made Sun 21 Jun 2015 09:59:36 AM PDT using RSA key ID C9B5CFC7
This commit is contained in:
David S. Miller 2015-06-23 06:42:12 -07:00
parent 26c0a14f34 36c01245eb
commit 5b3f87dbc7
4 changed files with 14 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/net/can/dev.c
View file

@ -440,6 +440,9 @@ unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx)
struct can_frame *cf = (struct can_frame *)skb->data;
u8 dlc = cf->can_dlc;
if (!(skb->tstamp.tv64))
__net_timestamp(skb);
netif_rx(priv->echo_skb[idx]);
priv->echo_skb[idx] = NULL;
@ -575,6 +578,7 @@ struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf)
if (unlikely(!skb))
return NULL;
__net_timestamp(skb);
skb->protocol = htons(ETH_P_CAN);
skb->pkt_type = PACKET_BROADCAST;
skb->ip_summed = CHECKSUM_UNNECESSARY;
@ -603,6 +607,7 @@ struct sk_buff *alloc_canfd_skb(struct net_device *dev,
if (unlikely(!skb))
return NULL;
__net_timestamp(skb);
skb->protocol = htons(ETH_P_CANFD);
skb->pkt_type = PACKET_BROADCAST;
skb->ip_summed = CHECKSUM_UNNECESSARY;

1
drivers/net/can/slcan.c
View file

@ -207,6 +207,7 @@ static void slc_bump(struct slcan *sl)
if (!skb)
return;
__net_timestamp(skb);
skb->dev = sl->dev;
skb->protocol = htons(ETH_P_CAN);
skb->pkt_type = PACKET_BROADCAST;

3
drivers/net/can/vcan.c
View file

@ -78,6 +78,9 @@ static void vcan_rx(struct sk_buff *skb, struct net_device *dev)
skb->dev = dev;
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (!(skb->tstamp.tv64))
__net_timestamp(skb);
netif_rx_ni(skb);
}

6
net/can/af_can.c
View file

@ -310,8 +310,12 @@ int can_send(struct sk_buff *skb, int loop)
return err;
}
if (newskb)
if (newskb) {
if (!(newskb->tstamp.tv64))
__net_timestamp(newskb);
netif_rx_ni(newskb);
}
/* update statistics */
can_stats.tx_frames++;