Oliver Hartkopp c7cd606f60 can: Fix data length code handling in rx path ... A valid CAN dataframe can have a data length code (DLC) of 0 .. 8 data bytes. When reading the CAN controllers register the 4-bit value may contain values from 0 .. 15 which may exceed the reserved space in the socket buffer! The ISO 11898-1 Chapter 8.4.2.3 (DLC field) says that register values > 8 should be reduced to 8 without any error reporting or frame drop. This patch introduces a new helper macro to cast a given 4-bit data length code (dlc) to __u8 and ensure the DLC value to be max. 8 bytes. The different handlings in the rx path of the CAN netdevice drivers are fixed. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-12-13 19:47:42 -08:00
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Kconfig	can: Fix driver Kconfig structure	2009-11-13 19:56:55 -08:00
Makefile	can: sja1000: legacy SJA1000 ISA bus driver	2009-09-04 02:16:16 -07:00
ems_pci.c	ems_pci: fix size of CAN controllers BAR mapping for CPC-PCI v2	2009-09-24 15:39:18 -07:00
kvaser_pci.c	can: sja1000: stop misusing member base_addr of struct net_device	2009-06-01 02:53:34 -07:00
sja1000.c	can: Fix data length code handling in rx path	2009-12-13 19:47:42 -08:00
sja1000.h	can: make the number of echo skb's configurable	2009-10-13 03:44:04 -07:00
sja1000_isa.c	can: sja1000: legacy SJA1000 ISA bus driver	2009-09-04 02:16:16 -07:00
sja1000_of_platform.c	net: Fix OF platform drivers coldplug/hotplug when compiled as modules	2009-10-14 14:54:52 -07:00
sja1000_platform.c	can: sja1000: stop misusing member base_addr of struct net_device	2009-06-01 02:53:34 -07:00