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| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2020-11-10 11:18:46 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-11-20 09:43:29 +0100 |
| commit | 69d98969a0540039fc04e0f22bbe9f41b0a13d66 (patch) | |
| tree | caf7410d6dd6ec78a672734a095c754d2a540156 /include/linux/can | |
| parent | ea7800565a128c1adafa1791ce80afd6016fe21c (diff) | |
| download | linux-69d98969a0540039fc04e0f22bbe9f41b0a13d66.tar.gz linux-69d98969a0540039fc04e0f22bbe9f41b0a13d66.tar.bz2 linux-69d98969a0540039fc04e0f22bbe9f41b0a13d66.zip | |
can: rename get_can_dlc() macro with can_cc_dlc2len()
The get_can_dlc() macro is used to ensure the payload length information of
the Classical CAN frame to be max 8 bytes (the CAN_MAX_DLEN).
Rename the macro and use the correct constant in preparation of the len/dlc
cleanup for Classical CAN frames.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20201110101852.1973-3-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/linux/can')
| -rw-r--r-- | include/linux/can/dev.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 41ff31795320..9bc84c6978ec 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -98,14 +98,14 @@ static inline unsigned int can_bit_time(const struct can_bittiming *bt) } /* - * get_can_dlc(value) - helper macro to cast a given data length code (dlc) - * to u8 and ensure the dlc value to be max. 8 bytes. + * can_cc_dlc2len(value) - convert a given data length code (dlc) of a + * Classical CAN frame into a valid data length of max. 8 bytes. * * To be used in the CAN netdriver receive path to ensure conformance with * ISO 11898-1 Chapter 8.4.2.3 (DLC field) */ -#define get_can_dlc(i) (min_t(u8, (i), CAN_MAX_DLC)) -#define get_canfd_dlc(i) (min_t(u8, (i), CANFD_MAX_DLC)) +#define can_cc_dlc2len(dlc) (min_t(u8, (dlc), CAN_MAX_DLEN)) +#define get_canfd_dlc(dlc) (min_t(u8, (dlc), CANFD_MAX_DLC)) /* Check for outgoing skbs that have not been created by the CAN subsystem */ static inline bool can_skb_headroom_valid(struct net_device *dev, |