candev: add/update helpers for CAN FD

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- 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 <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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Oliver Hartkopp 2012-06-13 20:48:21 +02:00 • committed by Marc Kleine-Budde

parent e2d265d3b5

commit 1e0625faca

2 changed files with 59 additions and 9 deletions

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include/linux/can/dev.h

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