can: remove obsolete get_canfd_dlc() macro

The macro was always used together with can_dlc2len() which sanitizes the
given dlc value on its own.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20201110101852.1973-4-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

7 files changed, 6 insertions, 7 deletions

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 50ccd18170c8..985569f946e5 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1000,7 +1000,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
 		cfd->can_id = (reg_id >> 18) & CAN_SFF_MASK;
 
 	if (reg_ctrl & FLEXCAN_MB_CNT_EDL) {
-		cfd->len = can_dlc2len(get_canfd_dlc((reg_ctrl >> 16) & 0xf));
+		cfd->len = can_dlc2len((reg_ctrl >> 16) & 0xf);
 
 		if (reg_ctrl & FLEXCAN_MB_CNT_BRS)
 			cfd->flags |= CANFD_BRS;
diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c
index 9ea2adea3f0f..c6077e07214e 100644
--- a/drivers/net/can/peak_canfd/peak_canfd.c
+++ b/drivers/net/can/peak_canfd/peak_canfd.c
@@ -257,7 +257,7 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv,
 	u8 cf_len;
 
 	if (rx_msg_flags & PUCAN_MSG_EXT_DATA_LEN)
-		cf_len = can_dlc2len(get_canfd_dlc(pucan_msg_get_dlc(msg)));
+		cf_len = can_dlc2len(pucan_msg_get_dlc(msg));
 	else
 		cf_len = can_cc_dlc2len(pucan_msg_get_dlc(msg));
 
diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index c0a08400f444..3bac7274ee5b 100644
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -1405,7 +1405,7 @@ mcp251xfd_hw_rx_obj_to_skb(const struct mcp251xfd_priv *priv,
 			cfd->flags |= CANFD_BRS;
 
 		dlc = FIELD_GET(MCP251XFD_OBJ_FLAGS_DLC, hw_rx_obj->flags);
-		cfd->len = can_dlc2len(get_canfd_dlc(dlc));
+		cfd->len = can_dlc2len(dlc);
 	} else {
 		if (hw_rx_obj->flags & MCP251XFD_OBJ_FLAGS_RTR)
 			cfd->can_id |= CAN_RTR_FLAG;
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
index 493a614bf333..843e2e1392e8 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c
@@ -1251,7 +1251,7 @@ static void kvaser_usb_hydra_rx_msg_ext(const struct kvaser_usb *dev,
 		kvaser_usb_can_rx_over_error(priv->netdev);
 
 	if (flags & KVASER_USB_HYDRA_CF_FLAG_FDF) {
-		cf->len = can_dlc2len(get_canfd_dlc(dlc));
+		cf->len = can_dlc2len(dlc);
 		if (flags & KVASER_USB_HYDRA_CF_FLAG_BRS)
 			cf->flags |= CANFD_BRS;
 		if (flags & KVASER_USB_HYDRA_CF_FLAG_ESI)
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 1f08dd22b3d5..1233ef20646a 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -492,7 +492,7 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if,
 		if (rx_msg_flags & PUCAN_MSG_ERROR_STATE_IND)
 			cfd->flags |= CANFD_ESI;
 
-		cfd->len = can_dlc2len(get_canfd_dlc(pucan_msg_get_dlc(rm)));
+		cfd->len = can_dlc2len(pucan_msg_get_dlc(rm));
 	} else {
 		/* CAN 2.0 frame case */
 		skb = alloc_can_skb(netdev, (struct can_frame **)&cfd);
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 9bc84c6978ec..802606e36b58 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -105,7 +105,6 @@ static inline unsigned int can_bit_time(const struct can_bittiming *bt)
  * ISO 11898-1 Chapter 8.4.2.3 (DLC field)
  */
 #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,
diff --git a/include/linux/can/dev/peak_canfd.h b/include/linux/can/dev/peak_canfd.h
index 5fd627e9da19..f38772fd0c07 100644
--- a/include/linux/can/dev/peak_canfd.h
+++ b/include/linux/can/dev/peak_canfd.h
@@ -282,7 +282,7 @@ static inline int pucan_msg_get_channel(const struct pucan_rx_msg *msg)
 }
 
 /* return the dlc value from any received message channel_dlc field */
-static inline int pucan_msg_get_dlc(const struct pucan_rx_msg *msg)
+static inline u8 pucan_msg_get_dlc(const struct pucan_rx_msg *msg)
 {
 	return msg->channel_dlc >> 4;
 }