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| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2020-11-20 11:04:44 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-11-20 12:04:12 +0100 |
| commit | c7b74967799b1af52b3045d69d4c26836b2d41de (patch) | |
| tree | 8ea93c983077794b4ea8825facfd35c3208da9cb /drivers/net/can/usb/esd_usb2.c | |
| parent | cd1124e76d740327be5d8f9ce3785ce1119daf4b (diff) | |
| download | lwn-c7b74967799b1af52b3045d69d4c26836b2d41de.tar.gz lwn-c7b74967799b1af52b3045d69d4c26836b2d41de.zip | |
can: replace can_dlc as variable/element for payload length
The naming of can_dlc as element of struct can_frame and also as variable
name is misleading as it claims to be a 'data length CODE' but in reality
it always was a plain data length.
With the indroduction of a new 'len' element in struct can_frame we can now
remove can_dlc as name and make clear which of the former uses was a plain
length (-> 'len') or a data length code (-> 'dlc') value.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20201120100444.3199-1-socketcan@hartkopp.net
[mkl: gs_usb: keep struct gs_host_frame::can_dlc as is]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/usb/esd_usb2.c')
| -rw-r--r-- | drivers/net/can/usb/esd_usb2.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c index 72999de550d1..3643a8ee03cf 100644 --- a/drivers/net/can/usb/esd_usb2.c +++ b/drivers/net/can/usb/esd_usb2.c @@ -292,7 +292,7 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv, priv->bec.rxerr = rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } } @@ -321,7 +321,7 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv, } cf->can_id = id & ESD_IDMASK; - cf->can_dlc = can_cc_dlc2len(msg->msg.rx.dlc & ~ESD_RTR); + cf->len = can_cc_dlc2len(msg->msg.rx.dlc & ~ESD_RTR); if (id & ESD_EXTID) cf->can_id |= CAN_EFF_FLAG; @@ -329,12 +329,12 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv, if (msg->msg.rx.dlc & ESD_RTR) { cf->can_id |= CAN_RTR_FLAG; } else { - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) cf->data[i] = msg->msg.rx.data[i]; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } @@ -737,7 +737,7 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb, msg->msg.hdr.len = 3; /* minimal length */ msg->msg.hdr.cmd = CMD_CAN_TX; msg->msg.tx.net = priv->index; - msg->msg.tx.dlc = cf->can_dlc; + msg->msg.tx.dlc = cf->len; msg->msg.tx.id = cpu_to_le32(cf->can_id & CAN_ERR_MASK); if (cf->can_id & CAN_RTR_FLAG) @@ -746,10 +746,10 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb, if (cf->can_id & CAN_EFF_FLAG) msg->msg.tx.id |= cpu_to_le32(ESD_EXTID); - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) msg->msg.tx.data[i] = cf->data[i]; - msg->msg.hdr.len += (cf->can_dlc + 3) >> 2; + msg->msg.hdr.len += (cf->len + 3) >> 2; for (i = 0; i < MAX_TX_URBS; i++) { if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) { @@ -769,7 +769,7 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb, context->priv = priv; context->echo_index = i; - context->dlc = cf->can_dlc; + context->dlc = cf->len; /* hnd must not be 0 - MSB is stripped in txdone handling */ msg->msg.tx.hnd = 0x80000000 | i; /* returned in TX done message */ |