diff options
author | Oliver Hartkopp <socketcan@hartkopp.net> | 2020-11-10 11:18:49 +0100 |
---|---|---|
committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-11-20 12:05:14 +0100 |
commit | 3ab4ce0d6fa8c93d41df4a74ec8d2c9198be2109 (patch) | |
tree | 9d05569f468555c916dfde7e19f0eb73ef8e0582 /drivers | |
parent | c7b74967799b1af52b3045d69d4c26836b2d41de (diff) |
can: rename CAN FD related can_len2dlc and can_dlc2len helpers
The helper functions can_len2dlc and can_dlc2len are only relevant for
CAN FD data length code (DLC) conversion.
To fit the introduced can_cc_dlc2len for Classical CAN we rename:
can_dlc2len -> can_fd_dlc2len to get the payload length from the DLC
can_len2dlc -> can_fd_len2dlc to get the DLC from the payload length
Suggested-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20201110101852.1973-6-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/can/dev.c | 8 | ||||
-rw-r--r-- | drivers/net/can/flexcan.c | 4 | ||||
-rw-r--r-- | drivers/net/can/ifi_canfd/ifi_canfd.c | 4 | ||||
-rw-r--r-- | drivers/net/can/kvaser_pciefd.c | 6 | ||||
-rw-r--r-- | drivers/net/can/m_can/m_can.c | 6 | ||||
-rw-r--r-- | drivers/net/can/peak_canfd/peak_canfd.c | 4 | ||||
-rw-r--r-- | drivers/net/can/rcar/rcar_canfd.c | 4 | ||||
-rw-r--r-- | drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 8 | ||||
-rw-r--r-- | drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 6 | ||||
-rw-r--r-- | drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 4 | ||||
-rw-r--r-- | drivers/net/can/xilinx_can.c | 4 |
11 files changed, 29 insertions, 29 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 806e8b646b12..3486704c8a95 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -31,11 +31,11 @@ static const u8 dlc2len[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 20, 24, 32, 48, 64}; /* get data length from raw data length code (DLC) */ -u8 can_dlc2len(u8 dlc) +u8 can_fd_dlc2len(u8 dlc) { return dlc2len[dlc & 0x0F]; } -EXPORT_SYMBOL_GPL(can_dlc2len); +EXPORT_SYMBOL_GPL(can_fd_dlc2len); static const u8 len2dlc[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, /* 0 - 8 */ 9, 9, 9, 9, /* 9 - 12 */ @@ -49,14 +49,14 @@ static const u8 len2dlc[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, /* 0 - 8 */ 15, 15, 15, 15, 15, 15, 15, 15}; /* 57 - 64 */ /* map the sanitized data length to an appropriate data length code */ -u8 can_len2dlc(u8 len) +u8 can_fd_len2dlc(u8 len) { if (unlikely(len > 64)) return 0xF; return len2dlc[len]; } -EXPORT_SYMBOL_GPL(can_len2dlc); +EXPORT_SYMBOL_GPL(can_fd_len2dlc); #ifdef CONFIG_CAN_CALC_BITTIMING #define CAN_CALC_MAX_ERROR 50 /* in one-tenth of a percent */ diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 985569f946e5..6f3555381230 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -746,7 +746,7 @@ static netdev_tx_t flexcan_start_xmit(struct sk_buff *skb, struct net_device *de struct canfd_frame *cfd = (struct canfd_frame *)skb->data; u32 can_id; u32 data; - u32 ctrl = FLEXCAN_MB_CODE_TX_DATA | ((can_len2dlc(cfd->len)) << 16); + u32 ctrl = FLEXCAN_MB_CODE_TX_DATA | ((can_fd_len2dlc(cfd->len)) << 16); int i; if (can_dropped_invalid_skb(dev, skb)) @@ -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((reg_ctrl >> 16) & 0xf); + cfd->len = can_fd_dlc2len((reg_ctrl >> 16) & 0xf); if (reg_ctrl & FLEXCAN_MB_CNT_BRS) cfd->flags |= CANFD_BRS; diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 3df55b0e4ef3..86b0e1406a21 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -271,7 +271,7 @@ static void ifi_canfd_read_fifo(struct net_device *ndev) dlc = (rxdlc >> IFI_CANFD_RXFIFO_DLC_DLC_OFFSET) & IFI_CANFD_RXFIFO_DLC_DLC_MASK; if (rxdlc & IFI_CANFD_RXFIFO_DLC_EDL) - cf->len = can_dlc2len(dlc); + cf->len = can_fd_dlc2len(dlc); else cf->len = can_cc_dlc2len(dlc); @@ -900,7 +900,7 @@ static netdev_tx_t ifi_canfd_start_xmit(struct sk_buff *skb, txid = cf->can_id & CAN_SFF_MASK; } - txdlc = can_len2dlc(cf->len); + txdlc = can_fd_len2dlc(cf->len); if ((priv->can.ctrlmode & CAN_CTRLMODE_FD) && can_is_canfd_skb(skb)) { txdlc |= IFI_CANFD_TXFIFO_DLC_EDL; if (cf->flags & CANFD_BRS) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index de268a344fcf..1bafa614950e 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -740,7 +740,7 @@ static int kvaser_pciefd_prepare_tx_packet(struct kvaser_pciefd_tx_packet *p, p->header[0] |= KVASER_PCIEFD_RPACKET_IDE; p->header[0] |= cf->can_id & CAN_EFF_MASK; - p->header[1] |= can_len2dlc(cf->len) << KVASER_PCIEFD_RPACKET_DLC_SHIFT; + p->header[1] |= can_fd_len2dlc(cf->len) << KVASER_PCIEFD_RPACKET_DLC_SHIFT; p->header[1] |= KVASER_PCIEFD_TPACKET_AREQ; if (can_is_canfd_skb(skb)) { @@ -1174,7 +1174,7 @@ static int kvaser_pciefd_handle_data_packet(struct kvaser_pciefd *pcie, if (p->header[0] & KVASER_PCIEFD_RPACKET_IDE) cf->can_id |= CAN_EFF_FLAG; - cf->len = can_dlc2len(p->header[1] >> KVASER_PCIEFD_RPACKET_DLC_SHIFT); + cf->len = can_fd_dlc2len(p->header[1] >> KVASER_PCIEFD_RPACKET_DLC_SHIFT); if (p->header[0] & KVASER_PCIEFD_RPACKET_RTR) cf->can_id |= CAN_RTR_FLAG; @@ -1600,7 +1600,7 @@ static int kvaser_pciefd_read_packet(struct kvaser_pciefd *pcie, int *start_pos, if (!(p->header[0] & KVASER_PCIEFD_RPACKET_RTR)) { u8 data_len; - data_len = can_dlc2len(p->header[1] >> + data_len = can_fd_dlc2len(p->header[1] >> KVASER_PCIEFD_RPACKET_DLC_SHIFT); pos += DIV_ROUND_UP(data_len, 4); } diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index b7df90ceee4b..a345e22f545e 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -457,7 +457,7 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs) } if (dlc & RX_BUF_FDF) - cf->len = can_dlc2len((dlc >> 16) & 0x0F); + cf->len = can_fd_dlc2len((dlc >> 16) & 0x0F); else cf->len = can_cc_dlc2len((dlc >> 16) & 0x0F); @@ -1489,7 +1489,7 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev) /* message ram configuration */ m_can_fifo_write(cdev, 0, M_CAN_FIFO_ID, id); m_can_fifo_write(cdev, 0, M_CAN_FIFO_DLC, - can_len2dlc(cf->len) << 16); + can_fd_len2dlc(cf->len) << 16); for (i = 0; i < cf->len; i += 4) m_can_fifo_write(cdev, 0, @@ -1557,7 +1557,7 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev) m_can_fifo_write(cdev, putidx, M_CAN_FIFO_DLC, ((putidx << TX_BUF_MM_SHIFT) & TX_BUF_MM_MASK) | - (can_len2dlc(cf->len) << 16) | + (can_fd_len2dlc(cf->len) << 16) | fdflags | TX_BUF_EFC); for (i = 0; i < cf->len; i += 4) diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index fff3a35276aa..c5334b0c3038 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(pucan_msg_get_dlc(msg)); + cf_len = can_fd_dlc2len(pucan_msg_get_dlc(msg)); else cf_len = can_cc_dlc2len(pucan_msg_get_dlc(msg)); @@ -682,7 +682,7 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, if (can_is_canfd_skb(skb)) { /* CAN FD frame format */ - len = can_len2dlc(cf->len); + len = can_fd_len2dlc(cf->len); msg_flags |= PUCAN_MSG_EXT_DATA_LEN; diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 86c6cbdb7e53..2778ed5c61d1 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -1357,7 +1357,7 @@ static netdev_tx_t rcar_canfd_start_xmit(struct sk_buff *skb, if (cf->can_id & CAN_RTR_FLAG) id |= RCANFD_CFID_CFRTR; - dlc = RCANFD_CFPTR_CFDLC(can_len2dlc(cf->len)); + dlc = RCANFD_CFPTR_CFDLC(can_fd_len2dlc(cf->len)); if (priv->can.ctrlmode & CAN_CTRLMODE_FD) { rcar_canfd_write(priv->base, @@ -1446,7 +1446,7 @@ static void rcar_canfd_rx_pkt(struct rcar_canfd_channel *priv) if (priv->can.ctrlmode & CAN_CTRLMODE_FD) { if (sts & RCANFD_RFFDSTS_RFFDF) - cf->len = can_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); + cf->len = can_fd_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); else cf->len = can_cc_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index 3bac7274ee5b..afa8cfc729b5 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(dlc); + cfd->len = can_fd_dlc2len(dlc); } else { if (hw_rx_obj->flags & MCP251XFD_OBJ_FLAGS_RTR) cfd->can_id |= CAN_RTR_FLAG; @@ -2244,7 +2244,7 @@ mcp251xfd_tx_obj_from_skb(const struct mcp251xfd_priv *priv, * harm, only the lower 7 bits will be transferred into the * TEF object. */ - dlc = can_len2dlc(cfd->len); + dlc = can_fd_len2dlc(cfd->len); flags |= FIELD_PREP(MCP251XFD_OBJ_FLAGS_SEQ_MCP2518FD_MASK, seq) | FIELD_PREP(MCP251XFD_OBJ_FLAGS_DLC, dlc); @@ -2273,7 +2273,7 @@ mcp251xfd_tx_obj_from_skb(const struct mcp251xfd_priv *priv, /* Clear data at end of CAN frame */ offset = round_down(cfd->len, sizeof(u32)); - len = round_up(can_dlc2len(dlc), sizeof(u32)) - offset; + len = round_up(can_fd_dlc2len(dlc), sizeof(u32)) - offset; if (MCP251XFD_SANITIZE_CAN && len) memset(hw_tx_obj->data + offset, 0x0, len); memcpy(hw_tx_obj->data, cfd->data, cfd->len); @@ -2281,7 +2281,7 @@ mcp251xfd_tx_obj_from_skb(const struct mcp251xfd_priv *priv, /* Number of bytes to be written into the RAM of the controller */ len = sizeof(hw_tx_obj->id) + sizeof(hw_tx_obj->flags); if (MCP251XFD_SANITIZE_CAN) - len += round_up(can_dlc2len(dlc), sizeof(u32)); + len += round_up(can_fd_dlc2len(dlc), sizeof(u32)); else len += round_up(cfd->len, sizeof(u32)); 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 c6d5f3f656c3..107b205b77ab 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -1120,7 +1120,7 @@ static void kvaser_usb_hydra_tx_acknowledge(const struct kvaser_usb *dev, struct net_device_stats *stats = &priv->netdev->stats; stats->tx_packets++; - stats->tx_bytes += can_dlc2len(context->dlc); + stats->tx_bytes += can_fd_dlc2len(context->dlc); } spin_lock_irqsave(&priv->tx_contexts_lock, irq_flags); @@ -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(dlc); + cf->len = can_fd_dlc2len(dlc); if (flags & KVASER_USB_HYDRA_CF_FLAG_BRS) cf->flags |= CANFD_BRS; if (flags & KVASER_USB_HYDRA_CF_FLAG_ESI) @@ -1351,7 +1351,7 @@ kvaser_usb_hydra_frame_to_cmd_ext(const struct kvaser_usb_net_priv *priv, struct kvaser_usb *dev = priv->dev; struct kvaser_cmd_ext *cmd; struct canfd_frame *cf = (struct canfd_frame *)skb->data; - u8 dlc = can_len2dlc(cf->len); + u8 dlc = can_fd_len2dlc(cf->len); u8 nbr_of_bytes = cf->len; u32 flags; u32 id; 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 922280692a8f..761e78d8e647 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(pucan_msg_get_dlc(rm)); + cfd->len = can_fd_dlc2len(pucan_msg_get_dlc(rm)); } else { /* CAN 2.0 frame case */ skb = alloc_can_skb(netdev, (struct can_frame **)&cfd); @@ -756,7 +756,7 @@ static int pcan_usb_fd_encode_msg(struct peak_usb_device *dev, if (can_is_canfd_skb(skb)) { /* considering a CANFD frame */ - len = can_len2dlc(cfd->len); + len = can_fd_len2dlc(cfd->len); tx_msg_flags |= PUCAN_MSG_EXT_DATA_LEN; diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 88831ce0f2f8..3f54edee92eb 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -583,7 +583,7 @@ static void xcan_write_frame(struct net_device *ndev, struct sk_buff *skb, id |= XCAN_IDR_SRR_MASK; } - dlc = can_len2dlc(cf->len) << XCAN_DLCR_DLC_SHIFT; + dlc = can_fd_len2dlc(cf->len) << XCAN_DLCR_DLC_SHIFT; if (can_is_canfd_skb(skb)) { if (cf->flags & CANFD_BRS) dlc |= XCAN_DLCR_BRS_MASK; @@ -832,7 +832,7 @@ static int xcanfd_rx(struct net_device *ndev, int frame_base) * format */ if (dlc & XCAN_DLCR_EDL_MASK) - cf->len = can_dlc2len((dlc & XCAN_DLCR_DLC_MASK) >> + cf->len = can_fd_dlc2len((dlc & XCAN_DLCR_DLC_MASK) >> XCAN_DLCR_DLC_SHIFT); else cf->len = can_cc_dlc2len((dlc & XCAN_DLCR_DLC_MASK) >> |