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authorVincent Mailhol <mailhol.vincent@wanadoo.fr>2021-06-29 00:54:19 +0900
committerMarc Kleine-Budde <mkl@pengutronix.de>2021-07-25 11:36:28 +0200
commit7fcecf51c18fa7e58e21f1a32d6a8df0c6f85784 (patch)
tree5103c47a89685ca7a285383f0715c9928aaf6ef1
parent004653f0abf202072e1d855d3556dff60784effc (diff)
can: etas_es58x: use sizeof and sizeof_field macros instead of constant values
Replace two constant values by a call to sizeof{,_field} on the relevant field to make the logic easier to understand. Link: https://lore.kernel.org/r/20210628155420.1176217-6-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
-rw-r--r--drivers/net/can/usb/etas_es58x/es581_4.c2
-rw-r--r--drivers/net/can/usb/etas_es58x/es58x_core.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/can/usb/etas_es58x/es581_4.c b/drivers/net/can/usb/etas_es58x/es581_4.c
index 1985f772fc3c..88dbfe41ba85 100644
--- a/drivers/net/can/usb/etas_es58x/es581_4.c
+++ b/drivers/net/can/usb/etas_es58x/es581_4.c
@@ -355,7 +355,7 @@ static int es581_4_tx_can_msg(struct es58x_priv *priv,
return -EMSGSIZE;
if (priv->tx_can_msg_cnt == 0) {
- msg_len = 1; /* struct es581_4_bulk_tx_can_msg:num_can_msg */
+ msg_len = sizeof(es581_4_urb_cmd->bulk_tx_can_msg.num_can_msg);
es581_4_fill_urb_header(urb_cmd, ES581_4_CAN_COMMAND_TYPE,
ES581_4_CMD_ID_TX_MSG,
priv->channel_idx, msg_len);
diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.c b/drivers/net/can/usb/etas_es58x/es58x_core.c
index 126e4d57332e..96a13c770e4a 100644
--- a/drivers/net/can/usb/etas_es58x/es58x_core.c
+++ b/drivers/net/can/usb/etas_es58x/es58x_core.c
@@ -70,7 +70,7 @@ MODULE_DEVICE_TABLE(usb, es58x_id_table);
* bytes (the start of frame) are skipped and the CRC calculation
* starts on the third byte.
*/
-#define ES58X_CRC_CALC_OFFSET 2
+#define ES58X_CRC_CALC_OFFSET sizeof_field(union es58x_urb_cmd, sof)
/**
* es58x_calculate_crc() - Compute the crc16 of a given URB.