kernel/linux.git/drivers/net/can/dev.c, branch v3.11.1

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

can: rename LED trigger name on netdev renames

2013-01-26T15:58:59+00:00

The LED trigger name for CAN devices is based on the initial CAN device name, but does never change. The LED trigger name is not guaranteed to be unique in case of hotplugging CAN devices. This patch tries to address this problem by modifying the LED trigger name according to the CAN device name when the latter changes. v1 - Kurt Van Dijck v2 - Fabio Baltieri - remove rename blocking if trigger is bound - use led-subsystem function for the actual rename (still WiP) - call init/exit functions from dev.c v3 - Kurt Van Dijck - safe operation for non-candev based devices (vcan, slcan) based on earlier patch v4 - Kurt Van Dijck - trivial patch mistakes fixed Signed-off-by: Kurt Van Dijck Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde

can: export a safe netdev_priv wrapper for candev

2013-01-26T15:58:59+00:00

In net_device notifier calls, it was impossible to determine if a CAN device is based on candev in a safe way. This patch adds such test in order to access candev storage from within those notifiers. Signed-off-by: Kurt Van Dijck Acked-by: Oliver Hartkopp Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde

can: Do not call dev_put if restart timer is running upon close

2012-11-29T13:30:08+00:00

If the restart timer is running due to BUS-OFF and the device is disconnected an dev_put will decrease the usage counter to -1 thus blocking the interface removal, resulting in the following dmesg lines repeating every 10s: can: notifier: receive list not found for dev can0 can: notifier: receive list not found for dev can0 can: notifier: receive list not found for dev can0 unregister_netdevice: waiting for can0 to become free. Usage count = -1 Cc: linux-stable Signed-off-by: Alexander Stein Signed-off-by: Marc Kleine-Budde

can: dev: fix sparse warning for can_restart

2012-07-02T09:07:25+00:00

Make can_restart static to fix the following sparse warning: drivers/net/can/dev.c:371:6: warning: symbol 'can_restart' was not declared. Should it be static? Signed-off-by: Marc Kleine-Budde

candev: add/update helpers for CAN FD

2012-06-19T19:40:14+00:00

- update sanity checks - add DLC to length conversion helpers - can_dlc2len() - get data length from can_dlc with sanitized can_dlc - can_len2dlc() - map the sanitized data length to an appropriate DLC Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde

can: Stop using NLA_PUT*().

2012-04-02T08:33:42+00:00

These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller

can: replace the dev_dbg/info/err/... with the new netdev_xxx macros

2012-02-03T00:21:26+00:00

Cc: uclinux-dist-devel@blackfin.uclinux.org Cc: Anant Gole Cc: Chris Elston Cc: Sebastian Haas Cc: Matthias Fuchs Signed-off-by: Wolfgang Grandegger Acked-by: Sebastian Haas Acked-by: Mike Frysinger Signed-off-by: Marc Kleine-Budde

can: dev: let can_get_echo_skb() return dlc of CAN frame

2012-02-03T00:21:25+00:00

can_get_echo_skb() is usually called in the TX complete handler. The stats->tx_packets and stats->tx_bytes should be updated there, too. This patch simplifies to figure out the size of the sent CAN frame. Signed-off-by: Marc Kleine-Budde