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
..
platform	can: Driver for the Microchip MCP251x SPI CAN controllers	2009-11-08 01:50:21 -08:00
Kbuild	can: CAN Network device driver and Netlink interface	2009-05-18 15:41:41 -07:00
bcm.h	headers_check fix: can/bcm.h	2009-01-30 19:50:25 +05:30
core.h	net: drop capability from protocol definitions	2009-11-05 21:40:17 -08:00
dev.h	can: Fix data length code handling in rx path	2009-12-13 19:47:42 -08:00
error.h	[CAN]: Add PF_CAN core module	2008-01-28 14:54:10 -08:00
netlink.h	can: CAN Network device driver and Netlink interface	2009-05-18 15:41:41 -07:00
raw.h	[CAN]: Add raw protocol	2008-01-28 14:54:10 -08:00