can/dev/length.c

1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (C) 2012, 2020 Oliver Hartkopp <socketcan@hartkopp.net>
11 	8, 12, 16, 20, 24, 32, 48, 64
22 	0, 1, 2, 3, 4, 5, 6, 7, 8,	/* 0 - 8 */
23 	9, 9, 9, 9,			/* 9 - 12 */
24 	10, 10, 10, 10,			/* 13 - 16 */
25 	11, 11, 11, 11,			/* 17 - 20 */
26 	12, 12, 12, 12,			/* 21 - 24 */
27 	13, 13, 13, 13, 13, 13, 13, 13,	/* 25 - 32 */
28 	14, 14, 14, 14, 14, 14, 14, 14,	/* 33 - 40 */
29 	14, 14, 14, 14, 14, 14, 14, 14,	/* 41 - 48 */
30 	15, 15, 15, 15, 15, 15, 15, 15,	/* 49 - 56 */
31 	15, 15, 15, 15, 15, 15, 15, 15	/* 57 - 64 */
48  * can_skb_get_frame_len() - Calculate the CAN Frame length in bytes
57  * value in bytes. Just using skb->len is insufficient because it will
63  * different bitrate. Currently, the can-utils canbusload tool does
64  * not support CAN-FD yet and so we could not run any benchmark to
71 	const struct canfd_frame *cf = (const struct canfd_frame *)skb->data;  in can_skb_get_frame_len()
75 		len = canfd_sanitize_len(cf->len);  in can_skb_get_frame_len()
76 	else if (cf->can_id & CAN_RTR_FLAG)  in can_skb_get_frame_len()
79 		len = cf->len;  in can_skb_get_frame_len()
81 	return can_frame_bytes(can_is_canfd_skb(skb), cf->can_id & CAN_EFF_FLAG,  in can_skb_get_frame_len()