From patchwork Tue Nov 10 10:18:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oliver Hartkopp X-Patchwork-Id: 321973 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBAA2C55ABD for ; Tue, 10 Nov 2020 10:19:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8C0F4207D3 for ; Tue, 10 Nov 2020 10:19:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=hartkopp.net header.i=@hartkopp.net header.b="SbJnpEKI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732050AbgKJKTR (ORCPT ); Tue, 10 Nov 2020 05:19:17 -0500 Received: from mo4-p02-ob.smtp.rzone.de ([85.215.255.84]:23173 "EHLO mo4-p02-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731886AbgKJKTP (ORCPT ); Tue, 10 Nov 2020 05:19:15 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1605003548; s=strato-dkim-0002; d=hartkopp.net; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=998jvg33guotTgYt35/RlgpnmOOkOUBLFFKj1YMI8B0=; b=SbJnpEKIYAt02c5Uos1N4PUb4HLlDa+SGT84sHe4B1Kec9KIWrSIV5Kv7anTbGvXGO 5MYx/Gvi05KIQSf+1t3rlkiB8ID37z/eO+YzYS+Kuvi1Az4VPw/NguVATgVrNJRWjGAS nk4ifCfWNUZtvWo1Cbst/rhz9A/iWNnFgWwoNPLXIgH2eLCdejol62rinmGHYor33xZE A39MML2nno0EYqah9idlq1NQ+PqZVJhGT7d0kH8BJIUtvz34IiAsFGy46wTWF0f20wXS LH9FZSR1zwHk2BBnO38LobS31FykX6K1+u4bZaskCry7IcAZ0ZR45oFhjJ16eQ+t1fnd lr8w== X-RZG-AUTH: ":P2MHfkW8eP4Mre39l357AZT/I7AY/7nT2yrDxb8mjGrp7owjzFK3JbFk1mS0k+8CejudJywjsi+/Fw==" X-RZG-CLASS-ID: mo00 Received: from silver.lan by smtp.strato.de (RZmta 47.3.3 DYNA|AUTH) with ESMTPSA id V0298cwAAAJ3AQh (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Tue, 10 Nov 2020 11:19:03 +0100 (CET) From: Oliver Hartkopp To: linux-can@vger.kernel.org, mkl@pengutronix.de, mailhol.vincent@wanadoo.fr Cc: netdev@vger.kernel.org, Oliver Hartkopp Subject: [PATCH v6 5/8] can: rename CAN FD related can_len2dlc and can_dlc2len helpers Date: Tue, 10 Nov 2020 11:18:49 +0100 Message-Id: <20201110101852.1973-6-socketcan@hartkopp.net> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201110101852.1973-1-socketcan@hartkopp.net> References: <20201110101852.1973-1-socketcan@hartkopp.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 Signed-off-by: Oliver Hartkopp --- Documentation/networking/can.rst | 2 +- drivers/net/can/dev.c | 8 ++++---- drivers/net/can/flexcan.c | 4 ++-- drivers/net/can/ifi_canfd/ifi_canfd.c | 4 ++-- drivers/net/can/kvaser_pciefd.c | 6 +++--- drivers/net/can/m_can/m_can.c | 6 +++--- drivers/net/can/peak_canfd/peak_canfd.c | 4 ++-- drivers/net/can/rcar/rcar_canfd.c | 4 ++-- drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 8 ++++---- drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 6 +++--- drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 4 ++-- drivers/net/can/xilinx_can.c | 4 ++-- include/linux/can/dev.h | 4 ++-- 13 files changed, 32 insertions(+), 32 deletions(-) diff --git a/Documentation/networking/can.rst b/Documentation/networking/can.rst index ff05cbd05e0d..4895b0dd2714 100644 --- a/Documentation/networking/can.rst +++ b/Documentation/networking/can.rst @@ -1330,11 +1330,11 @@ payload. The representation of this length in can_frame.can_dlc and canfd_frame.len for userspace applications and inside the Linux network layer is a plain value from 0 .. 64 instead of the CAN 'data length code'. The data length code was a 1:1 mapping to the payload length in the legacy CAN frames anyway. The payload length to the bus-relevant DLC mapping is only performed inside the CAN drivers, preferably with the helper -functions can_dlc2len() and can_len2dlc(). +functions can_fd_dlc2len() and can_fd_len2dlc(). The CAN netdevice driver capabilities can be distinguished by the network devices maximum transfer unit (MTU):: MTU = 16 (CAN_MTU) => sizeof(struct can_frame) => 'legacy' CAN device diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 566501a02b91..7878544184b9 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -29,15 +29,15 @@ MODULE_AUTHOR("Wolfgang Grandegger "); 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 */ 10, 10, 10, 10, /* 13 - 16 */ 11, 11, 11, 11, /* 17 - 20 */ @@ -47,18 +47,18 @@ static const u8 len2dlc[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, /* 0 - 8 */ 14, 14, 14, 14, 14, 14, 14, 14, /* 41 - 48 */ 15, 15, 15, 15, 15, 15, 15, 15, /* 49 - 56 */ 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 */ /* Bit-timing calculation derived from: diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index e76fb1500fa1..5542290d29f5 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -742,11 +742,11 @@ static netdev_tx_t flexcan_start_xmit(struct sk_buff *skb, struct net_device *de { const struct flexcan_priv *priv = netdev_priv(dev); 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)) return NETDEV_TX_OK; @@ -996,11 +996,11 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload, cfd->can_id = ((reg_id >> 0) & CAN_EFF_MASK) | CAN_EFF_FLAG; else 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; } else { cfd->len = can_cc_dlc2len((reg_ctrl >> 16) & 0xf); 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 @@ -269,11 +269,11 @@ 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); rxid = readl(priv->base + IFI_CANFD_RXFIFO_ID); id = (rxid >> IFI_CANFD_RXFIFO_ID_ID_OFFSET); @@ -898,11 +898,11 @@ static netdev_tx_t ifi_canfd_start_xmit(struct sk_buff *skb, txid |= IFI_CANFD_TXFIFO_ID_IDE; } else { 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) txdlc |= IFI_CANFD_TXFIFO_DLC_BRS; } diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 8b5f75209b09..118c6d7b38ac 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -738,11 +738,11 @@ static int kvaser_pciefd_prepare_tx_packet(struct kvaser_pciefd_tx_packet *p, if (cf->can_id & CAN_EFF_FLAG) 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)) { p->header[1] |= KVASER_PCIEFD_RPACKET_FDF; if (cf->flags & CANFD_BRS) @@ -1172,11 +1172,11 @@ static int kvaser_pciefd_handle_data_packet(struct kvaser_pciefd *pcie, cf->can_id = p->header[0] & CAN_EFF_MASK; 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; else memcpy(cf->data, data, cf->len); @@ -1598,11 +1598,11 @@ static int kvaser_pciefd_read_packet(struct kvaser_pciefd *pcie, int *start_pos, case KVASER_PCIEFD_PACK_TYPE_DATA: ret = kvaser_pciefd_handle_data_packet(pcie, p, &buffer[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); } break; diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index e753c5f636bb..18a0f41bd90a 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -455,11 +455,11 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs) stats->rx_dropped++; return; } 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); id = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_ID); if (id & RX_BUF_XTD) @@ -1482,11 +1482,11 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev) netif_stop_queue(dev); /* 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, M_CAN_FIFO_DATA(i / 4), *(u32 *)(cf->data + i)); @@ -1550,11 +1550,11 @@ static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev) * sending the correct echo frame */ 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) m_can_fifo_write(cdev, putidx, M_CAN_FIFO_DATA(i / 4), *(u32 *)(cf->data + i)); 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 @@ -255,11 +255,11 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv, struct sk_buff *skb; const u16 rx_msg_flags = le16_to_cpu(msg->flags); 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)); /* if this frame is an echo, */ if (rx_msg_flags & PUCAN_MSG_LOOPED_BACK) { @@ -680,11 +680,11 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, msg->can_id = cpu_to_le32(cf->can_id & CAN_SFF_MASK); } 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; if (cf->flags & CANFD_BRS) msg_flags |= PUCAN_MSG_BITRATE_SWITCH; 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 @@ -1355,11 +1355,11 @@ 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, RCANFD_F_CFID(ch, RCANFD_CFFIFO_IDX), id); rcar_canfd_write(priv->base, @@ -1444,11 +1444,11 @@ static void rcar_canfd_rx_pkt(struct rcar_canfd_channel *priv) else cf->can_id = id & CAN_SFF_MASK; 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)); if (sts & RCANFD_RFFDSTS_RFESI) { cf->flags |= CANFD_ESI; 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 @@ -1403,11 +1403,11 @@ mcp251xfd_hw_rx_obj_to_skb(const struct mcp251xfd_priv *priv, if (hw_rx_obj->flags & MCP251XFD_OBJ_FLAGS_BRS) 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; cfd->len = can_cc_dlc2len(FIELD_GET(MCP251XFD_OBJ_FLAGS_DLC, @@ -2242,11 +2242,11 @@ mcp251xfd_tx_obj_from_skb(const struct mcp251xfd_priv *priv, /* Use the MCP2518FD mask even on the MCP2517FD. It doesn't * 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); if (cfd->can_id & CAN_RTR_FLAG) flags |= MCP251XFD_OBJ_FLAGS_RTR; @@ -2271,19 +2271,19 @@ mcp251xfd_tx_obj_from_skb(const struct mcp251xfd_priv *priv, put_unaligned_le32(id, &hw_tx_obj->id); put_unaligned_le32(flags, &hw_tx_obj->flags); /* 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); /* 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)); if (priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_TX) { u16 crc; 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 fea87398e5b7..b8e0e2a88326 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -1118,11 +1118,11 @@ static void kvaser_usb_hydra_tx_acknowledge(const struct kvaser_usb *dev, context = &priv->tx_contexts[transid % dev->max_tx_urbs]; if (!one_shot_fail) { 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); can_get_echo_skb(priv->netdev, context->echo_index); @@ -1249,11 +1249,11 @@ static void kvaser_usb_hydra_rx_msg_ext(const struct kvaser_usb *dev, if (flags & KVASER_USB_HYDRA_CF_FLAG_OVERRUN) 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) cf->flags |= CANFD_ESI; } else { @@ -1349,11 +1349,11 @@ kvaser_usb_hydra_frame_to_cmd_ext(const struct kvaser_usb_net_priv *priv, int *cmd_len, u16 transid) { 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; u32 kcan_id; u32 kcan_header; 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 @@ -490,11 +490,11 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if, cfd->flags |= CANFD_BRS; 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); if (!skb) return -ENOMEM; @@ -754,11 +754,11 @@ static int pcan_usb_fd_encode_msg(struct peak_usb_device *dev, tx_msg->can_id = cpu_to_le32(cfd->can_id & CAN_SFF_MASK); } 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; if (cfd->flags & CANFD_BRS) tx_msg_flags |= PUCAN_MSG_BITRATE_SWITCH; 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 @@ -581,11 +581,11 @@ static void xcan_write_frame(struct net_device *ndev, struct sk_buff *skb, if (cf->can_id & CAN_RTR_FLAG) /* Standard frames remote TX request */ 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; dlc |= XCAN_DLCR_EDL_MASK; } @@ -830,11 +830,11 @@ static int xcanfd_rx(struct net_device *ndev, int frame_base) /* Change Xilinx CANFD data length format to socketCAN data * 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) >> XCAN_DLCR_DLC_SHIFT); diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 77da061c21c9..e767a96ae075 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -184,14 +184,14 @@ static inline void can_set_static_ctrlmode(struct net_device *dev, if (static_mode & CAN_CTRLMODE_FD) dev->mtu = CANFD_MTU; } /* get data length from raw data length code (DLC) */ -u8 can_dlc2len(u8 dlc); +u8 can_fd_dlc2len(u8 dlc); /* map the sanitized data length to an appropriate data length code */ -u8 can_len2dlc(u8 len); +u8 can_fd_len2dlc(u8 len); struct net_device *alloc_candev_mqs(int sizeof_priv, unsigned int echo_skb_max, unsigned int txqs, unsigned int rxqs); #define alloc_candev(sizeof_priv, echo_skb_max) \ alloc_candev_mqs(sizeof_priv, echo_skb_max, 1, 1)