From: Oliver Hartkopp <socketcan@xxxxxxxxxxxx> The get_can_dlc() macro is used to ensure the payload length information of the Classical CAN frame to be max 8 bytes (the CAN_MAX_DLEN). Rename the macro and use the correct constant in preparation of the len/dlc cleanup for Classical CAN frames. Signed-off-by: Oliver Hartkopp <socketcan@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20201110101852.1973-3-socketcan@xxxxxxxxxxxx Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> --- drivers/net/can/at91_can.c | 2 +- drivers/net/can/c_can/c_can.c | 2 +- drivers/net/can/cc770/cc770.c | 2 +- drivers/net/can/flexcan.c | 2 +- drivers/net/can/grcan.c | 2 +- drivers/net/can/ifi_canfd/ifi_canfd.c | 2 +- drivers/net/can/janz-ican3.c | 4 ++-- drivers/net/can/m_can/m_can.c | 2 +- drivers/net/can/mscan/mscan.c | 2 +- drivers/net/can/pch_can.c | 4 ++-- drivers/net/can/peak_canfd/peak_canfd.c | 2 +- drivers/net/can/rcar/rcar_can.c | 2 +- drivers/net/can/rcar/rcar_canfd.c | 4 ++-- drivers/net/can/sja1000/sja1000.c | 2 +- drivers/net/can/softing/softing_main.c | 2 +- drivers/net/can/spi/hi311x.c | 2 +- drivers/net/can/spi/mcp251x.c | 4 ++-- drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 2 +- drivers/net/can/sun4i_can.c | 2 +- drivers/net/can/ti_hecc.c | 2 +- drivers/net/can/usb/ems_usb.c | 2 +- drivers/net/can/usb/esd_usb2.c | 2 +- drivers/net/can/usb/gs_usb.c | 2 +- drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 4 ++-- drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 4 ++-- drivers/net/can/usb/mcba_usb.c | 2 +- drivers/net/can/usb/peak_usb/pcan_usb.c | 2 +- drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 2 +- drivers/net/can/usb/ucan.c | 8 ++++---- drivers/net/can/usb/usb_8dev.c | 2 +- drivers/net/can/xilinx_can.c | 4 ++-- include/linux/can/dev.h | 8 ++++---- 32 files changed, 45 insertions(+), 45 deletions(-) diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index c14de95d2ca7..db06254f8eb7 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -580,7 +580,7 @@ static void at91_read_mb(struct net_device *dev, unsigned int mb, cf->can_id = (reg_mid >> 18) & CAN_SFF_MASK; reg_msr = at91_read(priv, AT91_MSR(mb)); - cf->can_dlc = get_can_dlc((reg_msr >> 16) & 0xf); + cf->can_dlc = can_cc_dlc2len((reg_msr >> 16) & 0xf); if (reg_msr & AT91_MSR_MRTR) cf->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 1ccdbe89585b..56cc705959ea 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -397,7 +397,7 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, u32 ctrl) return -ENOMEM; } - frame->can_dlc = get_can_dlc(ctrl & 0x0F); + frame->can_dlc = can_cc_dlc2len(ctrl & 0x0F); arb = priv->read_reg32(priv, C_CAN_IFACE(ARB1_REG, iface)); diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index 07e2b8df5153..3fd2a276dd93 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -486,7 +486,7 @@ static void cc770_rx(struct net_device *dev, unsigned int mo, u8 ctrl1) } cf->can_id = id; - cf->can_dlc = get_can_dlc((config & 0xf0) >> 4); + cf->can_dlc = can_cc_dlc2len((config & 0xf0) >> 4); for (i = 0; i < cf->can_dlc; i++) cf->data[i] = cc770_read_reg(priv, msgobj[mo].data[i]); } diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 99e5f272205d..50ccd18170c8 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -1005,7 +1005,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload, if (reg_ctrl & FLEXCAN_MB_CNT_BRS) cfd->flags |= CANFD_BRS; } else { - cfd->len = get_can_dlc((reg_ctrl >> 16) & 0xf); + cfd->len = can_cc_dlc2len((reg_ctrl >> 16) & 0xf); if (reg_ctrl & FLEXCAN_MB_CNT_RTR) cfd->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c index 39802f107eb1..c71c9b8683d5 100644 --- a/drivers/net/can/grcan.c +++ b/drivers/net/can/grcan.c @@ -1201,7 +1201,7 @@ static int grcan_receive(struct net_device *dev, int budget) cf->can_id = ((slot[0] & GRCAN_MSG_BID) >> GRCAN_MSG_BID_BIT); } - cf->can_dlc = get_can_dlc((slot[1] & GRCAN_MSG_DLC) + cf->can_dlc = can_cc_dlc2len((slot[1] & GRCAN_MSG_DLC) >> GRCAN_MSG_DLC_BIT); if (rtr) { cf->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 74503cacf594..cc790354a8ee 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -273,7 +273,7 @@ static void ifi_canfd_read_fifo(struct net_device *ndev) if (rxdlc & IFI_CANFD_RXFIFO_DLC_EDL) cf->len = can_dlc2len(dlc); else - cf->len = get_can_dlc(dlc); + cf->len = can_cc_dlc2len(dlc); rxid = readl(priv->base + IFI_CANFD_RXFIFO_ID); id = (rxid >> IFI_CANFD_RXFIFO_ID_ID_OFFSET); diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index f929db893957..6a21af05ba27 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -916,10 +916,10 @@ static void ican3_to_can_frame(struct ican3_dev *mod, cf->can_id |= desc->data[0] << 3; cf->can_id |= (desc->data[1] & 0xe0) >> 5; - cf->can_dlc = get_can_dlc(desc->data[1] & ICAN3_CAN_DLC_MASK); + cf->can_dlc = can_cc_dlc2len(desc->data[1] & ICAN3_CAN_DLC_MASK); memcpy(cf->data, &desc->data[2], cf->can_dlc); } else { - cf->can_dlc = get_can_dlc(desc->data[0] & ICAN3_CAN_DLC_MASK); + cf->can_dlc = can_cc_dlc2len(desc->data[0] & ICAN3_CAN_DLC_MASK); if (desc->data[0] & ICAN3_EFF_RTR) cf->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index f3fc37e96b08..2e46a5916656 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -459,7 +459,7 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs) if (dlc & RX_BUF_FDF) cf->len = can_dlc2len((dlc >> 16) & 0x0F); else - cf->len = get_can_dlc((dlc >> 16) & 0x0F); + cf->len = can_cc_dlc2len((dlc >> 16) & 0x0F); id = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_ID); if (id & RX_BUF_XTD) diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c index 640ba1b356ec..95bf7338b358 100644 --- a/drivers/net/can/mscan/mscan.c +++ b/drivers/net/can/mscan/mscan.c @@ -312,7 +312,7 @@ static void mscan_get_rx_frame(struct net_device *dev, struct can_frame *frame) if (can_id & 1) frame->can_id |= CAN_RTR_FLAG; - frame->can_dlc = get_can_dlc(in_8(®s->rx.dlr) & 0xf); + frame->can_dlc = can_cc_dlc2len(in_8(®s->rx.dlr) & 0xf); if (!(frame->can_id & CAN_RTR_FLAG)) { void __iomem *data = ®s->rx.dsr1_0; diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 5c180d2f3c3c..9509bac8352d 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -683,7 +683,7 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 obj_num, int quota) if (id2 & PCH_ID2_DIR) cf->can_id |= CAN_RTR_FLAG; - cf->can_dlc = get_can_dlc((ioread32(&priv->regs-> + cf->can_dlc = can_cc_dlc2len((ioread32(&priv->regs-> ifregs[0].mcont)) & 0xF); for (i = 0; i < cf->can_dlc; i += 2) { @@ -715,7 +715,7 @@ static void pch_can_tx_complete(struct net_device *ndev, u32 int_stat) iowrite32(PCH_CMASK_RX_TX_GET | PCH_CMASK_CLRINTPND, &priv->regs->ifregs[1].cmask); pch_can_rw_msg_obj(&priv->regs->ifregs[1].creq, int_stat); - dlc = get_can_dlc(ioread32(&priv->regs->ifregs[1].mcont) & + dlc = can_cc_dlc2len(ioread32(&priv->regs->ifregs[1].mcont) & PCH_IF_MCONT_DLC); stats->tx_bytes += dlc; stats->tx_packets++; diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index 40c33b8a5fda..9ea2adea3f0f 100644 --- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -259,7 +259,7 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv, if (rx_msg_flags & PUCAN_MSG_EXT_DATA_LEN) cf_len = can_dlc2len(get_canfd_dlc(pucan_msg_get_dlc(msg))); else - cf_len = get_can_dlc(pucan_msg_get_dlc(msg)); + cf_len = can_cc_dlc2len(pucan_msg_get_dlc(msg)); /* if this frame is an echo, */ if (rx_msg_flags & PUCAN_MSG_LOOPED_BACK) { diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 48575900adb7..711ef4996b48 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -659,7 +659,7 @@ static void rcar_can_rx_pkt(struct rcar_can_priv *priv) cf->can_id = (data >> RCAR_CAN_SID_SHIFT) & CAN_SFF_MASK; dlc = readb(&priv->regs->mb[RCAR_CAN_RX_FIFO_MBX].dlc); - cf->can_dlc = get_can_dlc(dlc); + cf->can_dlc = can_cc_dlc2len(dlc); if (data & RCAR_CAN_RTR) { cf->can_id |= CAN_RTR_FLAG; } else { diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index de59dd6aad29..899a3218ce5e 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -1448,7 +1448,7 @@ static void rcar_canfd_rx_pkt(struct rcar_canfd_channel *priv) if (sts & RCANFD_RFFDSTS_RFFDF) cf->len = can_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); else - cf->len = get_can_dlc(RCANFD_RFPTR_RFDLC(dlc)); + cf->len = can_cc_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); if (sts & RCANFD_RFFDSTS_RFESI) { cf->flags |= CANFD_ESI; @@ -1464,7 +1464,7 @@ static void rcar_canfd_rx_pkt(struct rcar_canfd_channel *priv) rcar_canfd_get_data(priv, cf, RCANFD_F_RFDF(ridx, 0)); } } else { - cf->len = get_can_dlc(RCANFD_RFPTR_RFDLC(dlc)); + cf->len = can_cc_dlc2len(RCANFD_RFPTR_RFDLC(dlc)); if (id & RCANFD_RFID_RFRTR) cf->can_id |= CAN_RTR_FLAG; else diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 9f107798f904..1f188f2d126e 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -367,7 +367,7 @@ static void sja1000_rx(struct net_device *dev) | (priv->read_reg(priv, SJA1000_ID2) >> 5); } - cf->can_dlc = get_can_dlc(fi & 0x0F); + cf->can_dlc = can_cc_dlc2len(fi & 0x0F); if (fi & SJA1000_FI_RTR) { id |= CAN_RTR_FLAG; } else { diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c index 9d2faaa39ce4..39e8275ee7ba 100644 --- a/drivers/net/can/softing/softing_main.c +++ b/drivers/net/can/softing/softing_main.c @@ -261,7 +261,7 @@ static int softing_handle_1(struct softing *card) } else { if (cmd & CMD_RTR) msg.can_id |= CAN_RTR_FLAG; - msg.can_dlc = get_can_dlc(*ptr++); + msg.can_dlc = can_cc_dlc2len(*ptr++); if (cmd & CMD_XTD) { msg.can_id |= CAN_EFF_FLAG; msg.can_id |= le32_to_cpup((void *)ptr); diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index 73d48c3b8ded..728f34b696a7 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -341,7 +341,7 @@ static void hi3110_hw_rx(struct spi_device *spi) } /* Data length */ - frame->can_dlc = get_can_dlc(buf[HI3110_FIFO_WOTIME_DLC_OFF] & 0x0F); + frame->can_dlc = can_cc_dlc2len(buf[HI3110_FIFO_WOTIME_DLC_OFF] & 0x0F); if (buf[HI3110_FIFO_WOTIME_ID_OFF + 3] & HI3110_FIFO_WOTIME_ID_RTR) frame->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index 22d814ae4edc..6ddebb1c4a24 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -664,7 +664,7 @@ static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf, for (i = 1; i < RXBDAT_OFF; i++) buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i); - len = get_can_dlc(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); + len = can_cc_dlc2len(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); for (; i < (RXBDAT_OFF + len); i++) buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i); } else { @@ -720,7 +720,7 @@ static void mcp251x_hw_rx(struct spi_device *spi, int buf_idx) frame->can_id |= CAN_RTR_FLAG; } /* Data length */ - frame->can_dlc = get_can_dlc(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); + frame->can_dlc = can_cc_dlc2len(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); memcpy(frame->data, buf + RXBDAT_OFF, frame->can_dlc); priv->net->stats.rx_packets++; diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index 9c215f7c5f81..c0a08400f444 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c @@ -1410,7 +1410,7 @@ mcp251xfd_hw_rx_obj_to_skb(const struct mcp251xfd_priv *priv, if (hw_rx_obj->flags & MCP251XFD_OBJ_FLAGS_RTR) cfd->can_id |= CAN_RTR_FLAG; - cfd->len = get_can_dlc(FIELD_GET(MCP251XFD_OBJ_FLAGS_DLC, + cfd->len = can_cc_dlc2len(FIELD_GET(MCP251XFD_OBJ_FLAGS_DLC, hw_rx_obj->flags)); } diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index e2c6cf4b2228..0e2569779895 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -475,7 +475,7 @@ static void sun4i_can_rx(struct net_device *dev) return; fi = readl(priv->base + SUN4I_REG_BUF0_ADDR); - cf->can_dlc = get_can_dlc(fi & 0x0F); + cf->can_dlc = can_cc_dlc2len(fi & 0x0F); if (fi & SUN4I_MSG_EFF_FLAG) { dreg = SUN4I_REG_BUF5_ADDR; id = (readl(priv->base + SUN4I_REG_BUF1_ADDR) << 21) | diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 2c22f40e12bd..0b1fd34f4c83 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -566,7 +566,7 @@ static struct sk_buff *ti_hecc_mailbox_read(struct can_rx_offload *offload, data = hecc_read_mbx(priv, mbxno, HECC_CANMCF); if (data & HECC_CANMCF_RTR) cf->can_id |= CAN_RTR_FLAG; - cf->can_dlc = get_can_dlc(data & 0xF); + cf->can_dlc = can_cc_dlc2len(data & 0xF); data = hecc_read_mbx(priv, mbxno, HECC_CANMDL); *(__be32 *)(cf->data) = cpu_to_be32(data); diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 4f52810bebf8..288781934149 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -306,7 +306,7 @@ static void ems_usb_rx_can_msg(struct ems_usb *dev, struct ems_cpc_msg *msg) return; cf->can_id = le32_to_cpu(msg->msg.can_msg.id); - cf->can_dlc = get_can_dlc(msg->msg.can_msg.length & 0xF); + cf->can_dlc = can_cc_dlc2len(msg->msg.can_msg.length & 0xF); if (msg->type == CPC_MSG_TYPE_EXT_CAN_FRAME || msg->type == CPC_MSG_TYPE_EXT_RTR_FRAME) diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c index b5d7ed21d7d9..72999de550d1 100644 --- a/drivers/net/can/usb/esd_usb2.c +++ b/drivers/net/can/usb/esd_usb2.c @@ -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 = get_can_dlc(msg->msg.rx.dlc & ~ESD_RTR); + cf->can_dlc = can_cc_dlc2len(msg->msg.rx.dlc & ~ESD_RTR); if (id & ESD_EXTID) cf->can_id |= CAN_EFF_FLAG; diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index 3005157059ca..b1729b208788 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -331,7 +331,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) cf->can_id = hf->can_id; - cf->can_dlc = get_can_dlc(hf->can_dlc); + cf->can_dlc = can_cc_dlc2len(hf->can_dlc); memcpy(cf->data, hf->data, 8); /* ERROR frames tell us information about the controller */ 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 218fadc91155..493a614bf333 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -1180,7 +1180,7 @@ static void kvaser_usb_hydra_rx_msg_std(const struct kvaser_usb *dev, if (flags & KVASER_USB_HYDRA_CF_FLAG_OVERRUN) kvaser_usb_can_rx_over_error(priv->netdev); - cf->can_dlc = get_can_dlc(cmd->rx_can.dlc); + cf->can_dlc = can_cc_dlc2len(cmd->rx_can.dlc); if (flags & KVASER_USB_HYDRA_CF_FLAG_REMOTE_FRAME) cf->can_id |= CAN_RTR_FLAG; @@ -1257,7 +1257,7 @@ static void kvaser_usb_hydra_rx_msg_ext(const struct kvaser_usb *dev, if (flags & KVASER_USB_HYDRA_CF_FLAG_ESI) cf->flags |= CANFD_ESI; } else { - cf->len = get_can_dlc(dlc); + cf->len = can_cc_dlc2len(dlc); } if (flags & KVASER_USB_HYDRA_CF_FLAG_REMOTE_FRAME) diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index 1b9957f12459..916ab994cce4 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -978,7 +978,7 @@ static void kvaser_usb_leaf_rx_can_msg(const struct kvaser_usb *dev, else cf->can_id &= CAN_SFF_MASK; - cf->can_dlc = get_can_dlc(cmd->u.leaf.log_message.dlc); + cf->can_dlc = can_cc_dlc2len(cmd->u.leaf.log_message.dlc); if (cmd->u.leaf.log_message.flags & MSG_FLAG_REMOTE_FRAME) cf->can_id |= CAN_RTR_FLAG; @@ -996,7 +996,7 @@ static void kvaser_usb_leaf_rx_can_msg(const struct kvaser_usb *dev, cf->can_id |= CAN_EFF_FLAG; } - cf->can_dlc = get_can_dlc(rx_data[5]); + cf->can_dlc = can_cc_dlc2len(rx_data[5]); if (cmd->u.rx_can_header.flag & MSG_FLAG_REMOTE_FRAME) cf->can_id |= CAN_RTR_FLAG; diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index e97f2e0da6b0..295886c6b565 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -451,7 +451,7 @@ static void mcba_usb_process_can(struct mcba_priv *priv, if (msg->dlc & MCBA_DLC_RTR_MASK) cf->can_id |= CAN_RTR_FLAG; - cf->can_dlc = get_can_dlc(msg->dlc & MCBA_DLC_MASK); + cf->can_dlc = can_cc_dlc2len(msg->dlc & MCBA_DLC_MASK); memcpy(cf->data, msg->data, cf->can_dlc); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c index 63bd2ed96697..f7fc82203489 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb.c @@ -734,7 +734,7 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len) cf->can_id = le16_to_cpu(tmp16) >> 5; } - cf->can_dlc = get_can_dlc(rec_len); + cf->can_dlc = can_cc_dlc2len(rec_len); /* Only first packet timestamp is a word */ if (pcan_usb_decode_ts(mc, !mc->rec_ts_idx)) 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 d29d20525588..1f08dd22b3d5 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c @@ -499,7 +499,7 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if, if (!skb) return -ENOMEM; - cfd->len = get_can_dlc(pucan_msg_get_dlc(rm)); + cfd->len = can_cc_dlc2len(pucan_msg_get_dlc(rm)); } cfd->can_id = le32_to_cpu(rm->can_id); diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c index dc5290b36598..072058c6f6e8 100644 --- a/drivers/net/can/usb/ucan.c +++ b/drivers/net/can/usb/ucan.c @@ -303,12 +303,12 @@ struct ucan_priv { struct ucan_urb_context *context_array; }; -static u8 ucan_get_can_dlc(struct ucan_can_msg *msg, u16 len) +static u8 ucan_can_cc_dlc2len(struct ucan_can_msg *msg, u16 len) { if (le32_to_cpu(msg->id) & CAN_RTR_FLAG) - return get_can_dlc(msg->dlc); + return can_cc_dlc2len(msg->dlc); else - return get_can_dlc(len - (UCAN_IN_HDR_SIZE + sizeof(msg->id))); + return can_cc_dlc2len(len - (UCAN_IN_HDR_SIZE + sizeof(msg->id))); } static void ucan_release_context_array(struct ucan_priv *up) @@ -614,7 +614,7 @@ static void ucan_rx_can_msg(struct ucan_priv *up, struct ucan_message_in *m) cf->can_id = canid; /* compute DLC taking RTR_FLAG into account */ - cf->can_dlc = ucan_get_can_dlc(&m->msg.can_msg, len); + cf->can_dlc = ucan_can_cc_dlc2len(&m->msg.can_msg, len); /* copy the payload of non RTR frames */ if (!(cf->can_id & CAN_RTR_FLAG) || (cf->can_id & CAN_ERR_FLAG)) diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 62749c67c959..216c58f8df6e 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -470,7 +470,7 @@ static void usb_8dev_rx_can_msg(struct usb_8dev_priv *priv, return; cf->can_id = be32_to_cpu(msg->id); - cf->can_dlc = get_can_dlc(msg->dlc & 0xF); + cf->can_dlc = can_cc_dlc2len(msg->dlc & 0xF); if (msg->flags & USB_8DEV_EXTID) cf->can_id |= CAN_EFF_FLAG; diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 48d746e18f30..73e8b1df1071 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -759,7 +759,7 @@ static int xcan_rx(struct net_device *ndev, int frame_base) XCAN_DLCR_DLC_SHIFT; /* Change Xilinx CAN data length format to socketCAN data format */ - cf->can_dlc = get_can_dlc(dlc); + cf->can_dlc = can_cc_dlc2len(dlc); /* Change Xilinx CAN ID format to socketCAN ID format */ if (id_xcan & XCAN_IDR_IDE_MASK) { @@ -835,7 +835,7 @@ static int xcanfd_rx(struct net_device *ndev, int frame_base) cf->len = can_dlc2len((dlc & XCAN_DLCR_DLC_MASK) >> XCAN_DLCR_DLC_SHIFT); else - cf->len = get_can_dlc((dlc & XCAN_DLCR_DLC_MASK) >> + cf->len = can_cc_dlc2len((dlc & XCAN_DLCR_DLC_MASK) >> XCAN_DLCR_DLC_SHIFT); /* Change Xilinx CAN ID format to socketCAN ID format */ diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 41ff31795320..9bc84c6978ec 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -98,14 +98,14 @@ static inline unsigned int can_bit_time(const struct can_bittiming *bt) } /* - * get_can_dlc(value) - helper macro to cast a given data length code (dlc) - * to u8 and ensure the dlc value to be max. 8 bytes. + * can_cc_dlc2len(value) - convert a given data length code (dlc) of a + * Classical CAN frame into a valid data length of max. 8 bytes. * * To be used in the CAN netdriver receive path to ensure conformance with * ISO 11898-1 Chapter 8.4.2.3 (DLC field) */ -#define get_can_dlc(i) (min_t(u8, (i), CAN_MAX_DLC)) -#define get_canfd_dlc(i) (min_t(u8, (i), CANFD_MAX_DLC)) +#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, -- 2.29.2
