kernel/linux.git/drivers/net/can/dev/length.c, branch v6.1.168

can: length: can_fd_len2dlc(): make legnth calculation readable again

2021-01-27T09:01:46+00:00

In commit 652562e5ff06 ("can: length: can_fd_len2dlc(): simplify length calculcation") the readability of the code degraded and became more error prone. To counteract this, partially convert that patch and replace open coded values (of the original code) with proper defines. Fixes: 652562e5ff06 ("can: length: can_fd_len2dlc(): simplify length calculcation") Cc: Vincent MAILHOL Link: https://lore.kernel.org/r/20210118201346.79422-1-socketcan@hartkopp.net Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde

can: length: can_skb_get_frame_len(): introduce function to get data length of frame in data link layer

2021-01-14T07:43:42+00:00

This patch adds the function can_skb_get_frame_len() which returns the length of a CAN frame on the data link layer, including Start-of-frame, Identifier, various other bits, the actual data, the CRC, the End-of-frame, the Inter frame spacing. Co-developed-by: Arunachalam Santhanam Signed-off-by: Arunachalam Santhanam Co-developed-by: Vincent Mailhol Signed-off-by: Vincent Mailhol Acked-by: Vincent Mailhol Reviewed-by: Vincent Mailhol Co-developed-by: Marc Kleine-Budde Link: https://lore.kernel.org/r/20210111141930.693847-11-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde

can: length: can_fd_len2dlc(): simplify length calculcation

2021-01-14T07:43:41+00:00

If the length paramter in len2dlc() exceeds the size of the len2dlc array, we return 0xF. This is equal to the last 16 members of the array. This patch removes these members from the array, uses ARRAY_SIZE() for the length check, and returns CANFD_MAX_DLC (which is 0xf). Reviewed-by: Vincent Mailhol Link: https://lore.kernel.org/r/20210111141930.693847-9-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde

can: length: convert to kernel coding style

2021-01-13T08:42:59+00:00

This patch converts the file into the kernel coding style. Reviewed-by: Vincent Mailhol Link: https://lore.kernel.org/r/20210111141930.693847-8-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde

can: dev: move length related code into seperate file

2021-01-13T08:42:59+00:00

This patch moves all CAN frame length related code of the CAN device infrastructure into a separate file. Reviewed-by: Vincent Mailhol Link: https://lore.kernel.org/r/20210111141930.693847-5-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde