can: add documentation for CAN filter usage optimisation
authorOliver Hartkopp <socketcan@hartkopp.net>
Wed, 2 Apr 2014 18:25:27 +0000 (20:25 +0200)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Mon, 19 May 2014 07:38:25 +0000 (09:38 +0200)
commit277bd320e7dd8b77de6d3b6b9757b08fcca0108b
tree4b62b370215eae7855e29bc3b750309f9a8b9c92
parent45c700291aee5170185bf5d1c2a494b1e3fe0883
can: add documentation for CAN filter usage optimisation

To benefit from special filters for single SFF or single EFF CAN identifier
subscriptions the CAN_EFF_FLAG bit and the CAN_RTR_FLAG bit has to be set
together with the CAN_(SFF|EFF)_MASK in can_filter.mask.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Documentation/networking/can.txt