linux.git/net/can/raw.c, branch v3.13

net: pass info struct via netdevice notifier

2013-05-28T20:11:01+00:00

So far, only net_device * could be passed along with netdevice notifier
event. This patch provides a possibility to pass custom structure
able to provide info that event listener needs to know.

Signed-off-by: Jiri Pirko 

v2->v3: fix typo on simeth
	shortened dev_getter
	shortened notifier_info struct name
v1->v2: fix notifier_call parameter in call_netdevice_notifier()
Signed-off-by: David S. Miller

net: sock: make sock_tx_timestamp void

2013-04-14T19:41:49+00:00

Currently, sock_tx_timestamp() always returns 0. The comment that
describes the sock_tx_timestamp() function wrongly says that it
returns an error when an invalid argument is passed (from commit
20d4947353be, ``net: socket infrastructure for SO_TIMESTAMPING'').
Make the function void, so that we can also remove all the unneeded
if conditions that check for such a _non-existant_ error case in the
output path.

Signed-off-by: Daniel Borkmann 
Signed-off-by: David S. Miller

can: rework skb reserved data handling

2013-01-28T23:17:25+00:00

Added accessor and skb_reserve helpers for struct can_skb_priv.
Removed pointless skb_headroom() check.

Signed-off-by: Oliver Hartkopp 
CC: Marc Kleine-Budde 
Signed-off-by: David S. Miller

can: add private data space for CAN sk_buffs

2013-01-26T15:59:01+00:00

The struct can_skb_priv is used to transport additional information along
with the stored struct can(fd)_frame that can not be contained in existing
struct sk_buff elements.

can_skb_priv is located in the skb headroom, which does not touch the existing
CAN sk_buff usage with skb->data and skb->len, so that even out-of-tree
CAN drivers can be used without changes.

Btw. out-of-tree CAN drivers without can_skb_priv in the sk_buff headroom
would not support features based on can_skb_priv.

The can_skb_priv->ifindex contains the first interface where the CAN frame
appeared on the local host. Unfortunately skb->skb_iif can not be used as this
value is overwritten in every netif_receive_skb() call.

Signed-off-by: Oliver Hartkopp 
Signed-off-by: Marc Kleine-Budde

sections: fix section conflicts in net/can

2012-10-05T18:04:45+00:00

Signed-off-by: Andi Kleen 
Cc: Oliver Hartkopp 
Cc: David Miller 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

canfd: add support for CAN FD in CAN_RAW sockets

2012-06-19T19:40:08+00:00

- introduce a new sockopt CAN_RAW_FD_FRAMES to allow CAN FD frames
- handle CAN frames and CAN FD frames simultaneously when enabled

Signed-off-by: Oliver Hartkopp 
Signed-off-by: Marc Kleine-Budde

net: remove skb_orphan_try()

2012-06-15T22:30:15+00:00

Orphaning skb in dev_hard_start_xmit() makes bonding behavior
unfriendly for applications sending big UDP bursts : Once packets
pass the bonding device and come to real device, they might hit a full
qdisc and be dropped. Without orphaning, the sender is automatically
throttled because sk->sk_wmemalloc reaches sk->sk_sndbuf (assuming
sk_sndbuf is not too big)

We could try to defer the orphaning adding another test in
dev_hard_start_xmit(), but all this seems of little gain,
now that BQL tends to make packets more likely to be parked
in Qdisc queues instead of NIC TX ring, in cases where performance
matters.

Reverts commits :
fc6055a5ba31 net: Introduce skb_orphan_try()
87fd308cfc6b net: skb_tx_hash() fix relative to skb_orphan_try()
and removes SKBTX_DRV_NEEDS_SK_REF flag

Reported-and-bisected-by: Jean-Michel Hautbois 
Signed-off-by: Eric Dumazet 
Tested-by: Oliver Hartkopp 
Acked-by: Oliver Hartkopp 
Signed-off-by: David S. Miller

can: remove references to berlios mailinglist

2011-10-17T23:22:46+00:00

The BerliOS project, which currently hosts our mailinglist, will
close with the end of the year. Now take the chance and remove all
occurrences of the mailinglist address from the source files.

Signed-off-by: Marc Kleine-Budde 
Signed-off-by: David S. Miller

can: make struct can_proto const

2011-05-04T21:08:36+00:00

commit 53914b67993c724cec585863755c9ebc8446e83b had the
same message. That commit did put everything in place but
did not make can_proto const itself.

Signed-off-by: Kurt Van Dijck 
Acked-by: Oliver Hartkopp 
Signed-off-by: David S. Miller

can: add missing socket check in can/raw release

2011-04-20T19:37:59+00:00

v2: added space after 'if' according code style.

We can get here with a NULL socket argument passed from userspace,
so we need to handle it accordingly.

Thanks to Dave Jones pointing at this issue in net/can/bcm.c

Signed-off-by: Oliver Hartkopp 
Signed-off-by: David S. Miller