linux-stable/net/can
Oliver Hartkopp 821047c405 can: remove CAN FD compatibility for CAN 2.0 sockets
In commit e2d265d3b5 (canfd: add support for CAN FD in CAN_RAW sockets)
CAN FD frames with a payload length up to 8 byte are passed to legacy
sockets where the CAN FD support was not enabled by the application.

After some discussions with developers at a fair this well meant feature
leads to confusion as no clean switch for CAN / CAN FD is provided to the
application programmer. Additionally a compatibility like this for legacy
CAN_RAW sockets requires some compatibility handling for the sending, e.g.
make CAN2.0 frames a CAN FD frame with BRS at transmission time (?!?).

This will become a mess when people start to develop applications with
real CAN FD hardware. This patch reverts the bad compatibility code
together with the documentation describing the removed feature.

Acked-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-03 14:29:52 +01:00
..
af_can.c can: add destructor for self generated skbs 2014-01-30 16:25:49 -08:00
af_can.h net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
bcm.c can: add destructor for self generated skbs 2014-01-30 16:25:49 -08:00
gw.c can: use __dev_get_by_index instead of dev_get_by_index to find interface 2014-01-14 18:50:47 -08:00
Kconfig can: Kconfig: switch on all CAN protocolls by default 2013-01-26 16:58:58 +01:00
Makefile can-gw: add netlink based CAN routing 2011-09-16 17:37:51 -04:00
proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
raw.c can: remove CAN FD compatibility for CAN 2.0 sockets 2014-03-03 14:29:52 +01:00