From patchwork Tue Nov 10 10:18:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oliver Hartkopp X-Patchwork-Id: 321970 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=ham 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 5C03DC4741F for ; Tue, 10 Nov 2020 10:19:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF332207BB for ; Tue, 10 Nov 2020 10:19:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=hartkopp.net header.i=@hartkopp.net header.b="jNDJFkAI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731114AbgKJKTf (ORCPT ); Tue, 10 Nov 2020 05:19:35 -0500 Received: from mo4-p02-ob.smtp.rzone.de ([85.215.255.81]:25031 "EHLO mo4-p02-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731929AbgKJKTe (ORCPT ); Tue, 10 Nov 2020 05:19:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1605003552; 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=EkNKXZdCL8KK1xWoczcIILGeC3lzAUpD2xgDrjicOPM=; b=jNDJFkAIZHdkKxSomPFVA9QcfpnXLnmXrKn6Hf9w0LOe3OorhYHher2Ivg1cnWc7u1 2u0LtS8i60+3lTK2FmhVcT4kA//Mm7Ghwb+ksfWMo0uCITqFQsFsmGoJHX2I0Lw7TpiC k5fvn1k4MwXZrQMjsbmXYnz5mYdmM1YDIolfX2I92LnHZozmZEKG9UikVZhk8OWrlSWB g56xQvJr+FBmapbV1Yl+dP6PZNN8cd01CNEyRLAenTRZgdyg6fLq6/M3RtnhjVuQ9nKh Etvj0DgCCo8wvuUjx+sLqvChV1xofbmK5ew1XAaCOXRzFCQwJRZE2zOINvQMMZd5lUdZ pEJg== 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 V0298cwAAAJ2AQg (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Tue, 10 Nov 2020 11:19:02 +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 4/8] can: replace can_dlc as variable/element for payload length Date: Tue, 10 Nov 2020 11:18:48 +0100 Message-Id: <20201110101852.1973-5-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 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 --- drivers/net/can/at91_can.c | 14 ++++---- drivers/net/can/c_can/c_can.c | 20 ++++++------ drivers/net/can/cc770/cc770.c | 14 ++++---- drivers/net/can/dev.c | 10 +++--- drivers/net/can/grcan.c | 10 +++--- drivers/net/can/ifi_canfd/ifi_canfd.c | 4 +-- drivers/net/can/janz-ican3.c | 20 ++++++------ drivers/net/can/kvaser_pciefd.c | 4 +-- drivers/net/can/m_can/m_can.c | 4 +-- drivers/net/can/mscan/mscan.c | 20 ++++++------ drivers/net/can/pch_can.c | 12 +++---- drivers/net/can/peak_canfd/peak_canfd.c | 12 +++---- drivers/net/can/rcar/rcar_can.c | 14 ++++---- drivers/net/can/rcar/rcar_canfd.c | 4 +-- drivers/net/can/rx-offload.c | 2 +- drivers/net/can/sja1000/sja1000.c | 10 +++--- drivers/net/can/slcan.c | 32 +++++++++---------- drivers/net/can/softing/softing_fw.c | 2 +- drivers/net/can/softing/softing_main.c | 14 ++++---- drivers/net/can/spi/hi311x.c | 20 ++++++------ drivers/net/can/spi/mcp251x.c | 18 +++++------ drivers/net/can/sun4i_can.c | 10 +++--- drivers/net/can/ti_hecc.c | 8 ++--- drivers/net/can/usb/ems_usb.c | 16 +++++----- drivers/net/can/usb/esd_usb2.c | 16 +++++----- drivers/net/can/usb/gs_usb.c | 14 ++++---- .../net/can/usb/kvaser_usb/kvaser_usb_core.c | 2 +- .../net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 16 +++++----- .../net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 22 ++++++------- drivers/net/can/usb/mcba_usb.c | 10 +++--- drivers/net/can/usb/peak_usb/pcan_usb.c | 14 ++++---- drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 10 +++--- drivers/net/can/usb/peak_usb/pcan_usb_pro.c | 14 ++++---- drivers/net/can/usb/ucan.c | 14 ++++---- drivers/net/can/usb/usb_8dev.c | 14 ++++---- drivers/net/can/xilinx_can.c | 10 +++--- include/linux/can/dev.h | 4 +-- net/can/af_can.c | 2 +- net/can/gw.c | 2 +- net/can/j1939/main.c | 4 +-- 40 files changed, 231 insertions(+), 231 deletions(-) diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index db06254f8eb7..5284f0ab3b06 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -466,11 +466,11 @@ static netdev_tx_t at91_start_xmit(struct sk_buff *skb, struct net_device *dev) netdev_err(dev, "BUG! TX buffer full when queue awake!\n"); return NETDEV_TX_BUSY; } reg_mid = at91_can_id_to_reg_mid(cf->can_id); reg_mcr = ((cf->can_id & CAN_RTR_FLAG) ? AT91_MCR_MRTR : 0) | - (cf->can_dlc << 16) | AT91_MCR_MTCR; + (cf->len << 16) | AT91_MCR_MTCR; /* disable MB while writing ID (see datasheet) */ set_mb_mode(priv, mb, AT91_MB_MODE_DISABLED); at91_write(priv, AT91_MID(mb), reg_mid); set_mb_mode_prio(priv, mb, AT91_MB_MODE_TX, prio); @@ -479,11 +479,11 @@ static netdev_tx_t at91_start_xmit(struct sk_buff *skb, struct net_device *dev) at91_write(priv, AT91_MDH(mb), *(u32 *)(cf->data + 4)); /* This triggers transmission */ at91_write(priv, AT91_MCR(mb), reg_mcr); - stats->tx_bytes += cf->can_dlc; + stats->tx_bytes += cf->len; /* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */ can_put_echo_skb(skb, dev, mb - get_mb_tx_first(priv)); /* @@ -552,11 +552,11 @@ static void at91_rx_overflow_err(struct net_device *dev) cf->can_id |= CAN_ERR_CRTL; cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); } /** * at91_read_mb - read CAN msg from mailbox (lowlevel impl) @@ -578,11 +578,11 @@ static void at91_read_mb(struct net_device *dev, unsigned int mb, cf->can_id = ((reg_mid >> 0) & CAN_EFF_MASK) | CAN_EFF_FLAG; else cf->can_id = (reg_mid >> 18) & CAN_SFF_MASK; reg_msr = at91_read(priv, AT91_MSR(mb)); - cf->can_dlc = can_cc_dlc2len((reg_msr >> 16) & 0xf); + cf->len = can_cc_dlc2len((reg_msr >> 16) & 0xf); if (reg_msr & AT91_MSR_MRTR) cf->can_id |= CAN_RTR_FLAG; else { *(u32 *)(cf->data + 0) = at91_read(priv, AT91_MDL(mb)); @@ -617,11 +617,11 @@ static void at91_read_msg(struct net_device *dev, unsigned int mb) } at91_read_mb(dev, mb, cf); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); can_led_event(dev, CAN_LED_EVENT_RX); } @@ -778,11 +778,11 @@ static int at91_poll_err(struct net_device *dev, int quota, u32 reg_sr) return 0; at91_poll_err_frame(dev, cf, reg_sr); dev->stats.rx_packets++; - dev->stats.rx_bytes += cf->can_dlc; + dev->stats.rx_bytes += cf->len; netif_receive_skb(skb); return 1; } @@ -1045,11 +1045,11 @@ static void at91_irq_err(struct net_device *dev) return; at91_irq_err_state(dev, cf, new_state); dev->stats.rx_packets++; - dev->stats.rx_bytes += cf->can_dlc; + dev->stats.rx_bytes += cf->len; netif_rx(skb); priv->can.state = new_state; } diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 56cc705959ea..0420f09f2b70 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -304,11 +304,11 @@ static void c_can_inval_msg_object(struct net_device *dev, int iface, int obj) static void c_can_setup_tx_object(struct net_device *dev, int iface, struct can_frame *frame, int idx) { struct c_can_priv *priv = netdev_priv(dev); - u16 ctrl = IF_MCONT_TX | frame->can_dlc; + u16 ctrl = IF_MCONT_TX | frame->len; bool rtr = frame->can_id & CAN_RTR_FLAG; u32 arb = IF_ARB_MSGVAL; int i; if (frame->can_id & CAN_EFF_FLAG) { @@ -337,19 +337,19 @@ static void c_can_setup_tx_object(struct net_device *dev, int iface, priv->write_reg(priv, C_CAN_IFACE(MSGCTRL_REG, iface), ctrl); if (priv->type == BOSCH_D_CAN) { u32 data = 0, dreg = C_CAN_IFACE(DATA1_REG, iface); - for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) { + for (i = 0; i < frame->len; i += 4, dreg += 2) { data = (u32)frame->data[i]; data |= (u32)frame->data[i + 1] << 8; data |= (u32)frame->data[i + 2] << 16; data |= (u32)frame->data[i + 3] << 24; priv->write_reg32(priv, dreg, data); } } else { - for (i = 0; i < frame->can_dlc; i += 2) { + for (i = 0; i < frame->len; i += 2) { priv->write_reg(priv, C_CAN_IFACE(DATA1_REG, iface) + i / 2, frame->data[i] | (frame->data[i + 1] << 8)); } @@ -395,11 +395,11 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, u32 ctrl) if (!skb) { stats->rx_dropped++; return -ENOMEM; } - frame->can_dlc = can_cc_dlc2len(ctrl & 0x0F); + frame->len = can_cc_dlc2len(ctrl & 0x0F); arb = priv->read_reg32(priv, C_CAN_IFACE(ARB1_REG, iface)); if (arb & IF_ARB_MSGXTD) frame->can_id = (arb & CAN_EFF_MASK) | CAN_EFF_FLAG; @@ -410,28 +410,28 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, u32 ctrl) frame->can_id |= CAN_RTR_FLAG; } else { int i, dreg = C_CAN_IFACE(DATA1_REG, iface); if (priv->type == BOSCH_D_CAN) { - for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) { + for (i = 0; i < frame->len; i += 4, dreg += 2) { data = priv->read_reg32(priv, dreg); frame->data[i] = data; frame->data[i + 1] = data >> 8; frame->data[i + 2] = data >> 16; frame->data[i + 3] = data >> 24; } } else { - for (i = 0; i < frame->can_dlc; i += 2, dreg++) { + for (i = 0; i < frame->len; i += 2, dreg++) { data = priv->read_reg(priv, dreg); frame->data[i] = data; frame->data[i + 1] = data >> 8; } } } stats->rx_packets++; - stats->rx_bytes += frame->can_dlc; + stats->rx_bytes += frame->len; netif_receive_skb(skb); return 0; } @@ -473,11 +473,11 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb, * Store the message in the interface so we can call * can_put_echo_skb(). We must do this before we enable * transmit as we might race against do_tx(). */ c_can_setup_tx_object(dev, IF_TX, frame, idx); - priv->dlc[idx] = frame->can_dlc; + priv->dlc[idx] = frame->len; can_put_echo_skb(skb, dev, idx); /* Update the active bits */ atomic_add((1 << idx), &priv->tx_active); /* Start transmission */ @@ -975,11 +975,11 @@ static int c_can_handle_state_change(struct net_device *dev, default: break; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } @@ -1045,11 +1045,11 @@ static int c_can_handle_bus_err(struct net_device *dev, default: break; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } static int c_can_poll(struct napi_struct *napi, int quota) diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index 3fd2a276dd93..8d9f332c35e0 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -388,11 +388,11 @@ static void cc770_tx(struct net_device *dev, int mo) struct can_frame *cf = (struct can_frame *)priv->tx_skb->data; u8 dlc, rtr; u32 id; int i; - dlc = cf->can_dlc; + dlc = cf->len; id = cf->can_id; rtr = cf->can_id & CAN_RTR_FLAG ? 0 : MSGCFG_DIR; cc770_write_reg(priv, msgobj[mo].ctrl0, MSGVAL_RES | TXIE_RES | RXIE_RES | INTPND_RES); @@ -468,11 +468,11 @@ static void cc770_rx(struct net_device *dev, unsigned int mo, u8 ctrl1) * frame. Therefore we set it to 0. */ cf->can_id = CAN_RTR_FLAG; if (config & MSGCFG_XTD) cf->can_id |= CAN_EFF_FLAG; - cf->can_dlc = 0; + cf->len = 0; } else { if (config & MSGCFG_XTD) { id = cc770_read_reg(priv, msgobj[mo].id[3]); id |= cc770_read_reg(priv, msgobj[mo].id[2]) << 8; id |= cc770_read_reg(priv, msgobj[mo].id[1]) << 16; @@ -484,17 +484,17 @@ static void cc770_rx(struct net_device *dev, unsigned int mo, u8 ctrl1) id |= cc770_read_reg(priv, msgobj[mo].id[0]) << 8; id >>= 5; } cf->can_id = id; - cf->can_dlc = can_cc_dlc2len((config & 0xf0) >> 4); - for (i = 0; i < cf->can_dlc; i++) + cf->len = can_cc_dlc2len((config & 0xf0) >> 4); + for (i = 0; i < cf->len; i++) cf->data[i] = cc770_read_reg(priv, msgobj[mo].data[i]); } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static int cc770_err(struct net_device *dev, u8 status) { @@ -570,11 +570,11 @@ static int cc770_err(struct net_device *dev, u8 status) } } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); return 0; } @@ -697,11 +697,11 @@ static void cc770_tx_interrupt(struct net_device *dev, unsigned int o) cc770_tx(dev, mo); return; } cf = (struct can_frame *)priv->tx_skb->data; - stats->tx_bytes += cf->can_dlc; + stats->tx_bytes += cf->len; stats->tx_packets++; can_put_echo_skb(priv->tx_skb, dev, 0); can_get_echo_skb(dev, 0); priv->tx_skb = NULL; diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 6dee4f8f2024..566501a02b91 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -28,14 +28,14 @@ MODULE_AUTHOR("Wolfgang Grandegger "); /* CAN DLC to real data length conversion helpers */ static const u8 dlc2len[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 20, 24, 32, 48, 64}; -/* get data length from can_dlc with sanitized can_dlc */ -u8 can_dlc2len(u8 can_dlc) +/* get data length from raw data length code (DLC) */ +u8 can_dlc2len(u8 dlc) { - return dlc2len[can_dlc & 0x0F]; + return dlc2len[dlc & 0x0F]; } EXPORT_SYMBOL_GPL(can_dlc2len); static const u8 len2dlc[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, /* 0 - 8 */ 9, 9, 9, 9, /* 9 - 12 */ @@ -593,11 +593,11 @@ static void can_restart(struct net_device *dev) cf->can_id |= CAN_ERR_RESTARTED; netif_rx(skb); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; restart: netdev_dbg(dev, "restarted\n"); priv->can_stats.restarts++; @@ -735,11 +735,11 @@ struct sk_buff *alloc_can_err_skb(struct net_device *dev, struct can_frame **cf) skb = alloc_can_skb(dev, cf); if (unlikely(!skb)) return NULL; (*cf)->can_id = CAN_ERR_FLAG; - (*cf)->can_dlc = CAN_ERR_DLC; + (*cf)->len = CAN_ERR_DLC; return skb; } EXPORT_SYMBOL_GPL(alloc_can_err_skb); diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c index c71c9b8683d5..f5d94a692576 100644 --- a/drivers/net/can/grcan.c +++ b/drivers/net/can/grcan.c @@ -1199,25 +1199,25 @@ static int grcan_receive(struct net_device *dev, int budget) cf->can_id |= CAN_EFF_FLAG; } else { cf->can_id = ((slot[0] & GRCAN_MSG_BID) >> GRCAN_MSG_BID_BIT); } - cf->can_dlc = can_cc_dlc2len((slot[1] & GRCAN_MSG_DLC) + cf->len = can_cc_dlc2len((slot[1] & GRCAN_MSG_DLC) >> GRCAN_MSG_DLC_BIT); if (rtr) { cf->can_id |= CAN_RTR_FLAG; } else { - for (i = 0; i < cf->can_dlc; i++) { + for (i = 0; i < cf->len; i++) { j = GRCAN_MSG_DATA_SLOT_INDEX(i); shift = GRCAN_MSG_DATA_SHIFT(i); cf->data[i] = (u8)(slot[j] >> shift); } } /* Update statistics and read pointer */ stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); rd = grcan_ring_add(rd, GRCAN_MSG_SIZE, dma->rx.size); } @@ -1397,11 +1397,11 @@ static netdev_tx_t grcan_start_xmit(struct sk_buff *skb, /* Convert and write CAN message to DMA buffer */ eff = cf->can_id & CAN_EFF_FLAG; rtr = cf->can_id & CAN_RTR_FLAG; id = cf->can_id & (eff ? CAN_EFF_MASK : CAN_SFF_MASK); - dlc = cf->can_dlc; + dlc = cf->len; if (eff) tmp = (id << GRCAN_MSG_EID_BIT) & GRCAN_MSG_EID; else tmp = (id << GRCAN_MSG_BID_BIT) & GRCAN_MSG_BID; slot[0] = (eff ? GRCAN_MSG_IDE : 0) | (rtr ? GRCAN_MSG_RTR : 0) | tmp; @@ -1445,11 +1445,11 @@ static netdev_tx_t grcan_start_xmit(struct sk_buff *skb, * as ownership of the skb is passed on by calling can_put_echo_skb. * Returning NETDEV_TX_BUSY or accessing skb or cf after a call to * can_put_echo_skb would be an error unless other measures are * taken. */ - priv->txdlc[slotindex] = cf->can_dlc; /* Store dlc for statistics */ + priv->txdlc[slotindex] = cf->len; /* Store dlc for statistics */ can_put_echo_skb(skb, dev, slotindex); /* Make sure everything is written before allowing hardware to * read from the memory */ diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index cc790354a8ee..3df55b0e4ef3 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -429,11 +429,11 @@ static int ifi_canfd_handle_lec_err(struct net_device *ndev) writel(IFI_CANFD_INTERRUPT_ERROR_COUNTER, priv->base + IFI_CANFD_INTERRUPT); writel(IFI_CANFD_ERROR_CTR_ER_ENABLE, priv->base + IFI_CANFD_ERROR_CTR); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } @@ -521,11 +521,11 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev, default: break; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 6a21af05ba27..2a6c918186c0 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -914,14 +914,14 @@ static void ican3_to_can_frame(struct ican3_dev *mod, if (desc->data[1] & ICAN3_SFF_RTR) cf->can_id |= CAN_RTR_FLAG; cf->can_id |= desc->data[0] << 3; cf->can_id |= (desc->data[1] & 0xe0) >> 5; - cf->can_dlc = can_cc_dlc2len(desc->data[1] & ICAN3_CAN_DLC_MASK); - memcpy(cf->data, &desc->data[2], cf->can_dlc); + cf->len = can_cc_dlc2len(desc->data[1] & ICAN3_CAN_DLC_MASK); + memcpy(cf->data, &desc->data[2], cf->len); } else { - cf->can_dlc = can_cc_dlc2len(desc->data[0] & ICAN3_CAN_DLC_MASK); + cf->len = can_cc_dlc2len(desc->data[0] & ICAN3_CAN_DLC_MASK); if (desc->data[0] & ICAN3_EFF_RTR) cf->can_id |= CAN_RTR_FLAG; if (desc->data[0] & ICAN3_EFF) { cf->can_id |= CAN_EFF_FLAG; @@ -932,11 +932,11 @@ static void ican3_to_can_frame(struct ican3_dev *mod, } else { cf->can_id |= desc->data[2] << 3; /* 10-3 */ cf->can_id |= desc->data[3] >> 5; /* 2-0 */ } - memcpy(cf->data, &desc->data[6], cf->can_dlc); + memcpy(cf->data, &desc->data[6], cf->len); } } static void can_frame_to_ican3(struct ican3_dev *mod, struct can_frame *cf, @@ -945,11 +945,11 @@ static void can_frame_to_ican3(struct ican3_dev *mod, /* clear out any stale data in the descriptor */ memset(desc->data, 0, sizeof(desc->data)); /* we always use the extended format, with the ECHO flag set */ desc->command = ICAN3_CAN_TYPE_EFF; - desc->data[0] |= cf->can_dlc; + desc->data[0] |= cf->len; desc->data[1] |= ICAN3_ECHO; /* support single transmission (no retries) mode */ if (mod->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT) desc->data[1] |= ICAN3_SNGL; @@ -968,11 +968,11 @@ static void can_frame_to_ican3(struct ican3_dev *mod, desc->data[2] = (cf->can_id & 0x7F8) >> 3; /* bits 10-3 */ desc->data[3] = (cf->can_id & 0x007) << 5; /* bits 2-0 */ } /* copy the data bits into the descriptor */ - memcpy(&desc->data[6], cf->data, cf->can_dlc); + memcpy(&desc->data[6], cf->data, cf->len); } /* * Interrupt Handling */ @@ -1292,11 +1292,11 @@ static unsigned int ican3_get_echo_skb(struct ican3_dev *mod) netdev_err(mod->ndev, "BUG: echo skb not occupied\n"); return 0; } cf = (struct can_frame *)skb->data; - dlc = cf->can_dlc; + dlc = cf->len; /* check flag whether this packet has to be looped back */ if (skb->pkt_type != PACKET_LOOPBACK) { kfree_skb(skb); return dlc; @@ -1330,14 +1330,14 @@ static bool ican3_echo_skb_matches(struct ican3_dev *mod, struct sk_buff *skb) echo_cf = (struct can_frame *)echo_skb->data; if (cf->can_id != echo_cf->can_id) return false; - if (cf->can_dlc != echo_cf->can_dlc) + if (cf->len != echo_cf->len) return false; - return memcmp(cf->data, echo_cf->data, cf->can_dlc) == 0; + return memcmp(cf->data, echo_cf->data, cf->len) == 0; } /* * Check that there is room in the TX ring to transmit another skb * @@ -1419,11 +1419,11 @@ static int ican3_recv_skb(struct ican3_dev *mod) goto err_noalloc; } /* update statistics, receive the skb */ stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); err_noalloc: /* toggle the valid bit and return the descriptor to the ring */ desc.control ^= DESC_VALID; diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 6f766918211a..8b5f75209b09 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1297,11 +1297,11 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can, cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); return 0; } @@ -1496,11 +1496,11 @@ static void kvaser_pciefd_handle_nack_packet(struct kvaser_pciefd_can *can, cf->can_id |= CAN_ERR_ACK; } if (skb) { cf->can_id |= CAN_ERR_BUSERROR; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; stats->rx_packets++; netif_rx(skb); } else { stats->rx_dropped++; netdev_warn(can->can.dev, "No memory left for err_skb\n"); diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index ca040de8f909..e753c5f636bb 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -594,11 +594,11 @@ static int m_can_handle_lec_err(struct net_device *dev, default: break; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } @@ -721,11 +721,11 @@ static int m_can_handle_state_change(struct net_device *dev, default: break; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); return 1; } diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c index 95bf7338b358..5ed00a1558e1 100644 --- a/drivers/net/can/mscan/mscan.c +++ b/drivers/net/can/mscan/mscan.c @@ -248,20 +248,20 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev) if (!rtr) { void __iomem *data = ®s->tx.dsr1_0; u16 *payload = (u16 *)frame->data; - for (i = 0; i < frame->can_dlc / 2; i++) { + for (i = 0; i < frame->len / 2; i++) { out_be16(data, *payload++); data += 2 + _MSCAN_RESERVED_DSR_SIZE; } /* write remaining byte if necessary */ - if (frame->can_dlc & 1) - out_8(data, frame->data[frame->can_dlc - 1]); + if (frame->len & 1) + out_8(data, frame->data[frame->len - 1]); } - out_8(®s->tx.dlr, frame->can_dlc); + out_8(®s->tx.dlr, frame->len); out_8(®s->tx.tbpr, priv->cur_pri); /* Start transmission. */ out_8(®s->cantflg, 1 << buf_id); @@ -310,23 +310,23 @@ static void mscan_get_rx_frame(struct net_device *dev, struct can_frame *frame) frame->can_id |= can_id >> 1; if (can_id & 1) frame->can_id |= CAN_RTR_FLAG; - frame->can_dlc = can_cc_dlc2len(in_8(®s->rx.dlr) & 0xf); + frame->len = can_cc_dlc2len(in_8(®s->rx.dlr) & 0xf); if (!(frame->can_id & CAN_RTR_FLAG)) { void __iomem *data = ®s->rx.dsr1_0; u16 *payload = (u16 *)frame->data; - for (i = 0; i < frame->can_dlc / 2; i++) { + for (i = 0; i < frame->len / 2; i++) { *payload++ = in_be16(data); data += 2 + _MSCAN_RESERVED_DSR_SIZE; } /* read remaining byte if necessary */ - if (frame->can_dlc & 1) - frame->data[frame->can_dlc - 1] = in_8(data); + if (frame->len & 1) + frame->data[frame->len - 1] = in_8(data); } out_8(®s->canrflg, MSCAN_RXF); } @@ -370,11 +370,11 @@ static void mscan_get_err_frame(struct net_device *dev, struct can_frame *frame, } can_bus_off(dev); } } priv->shadow_statflg = canrflg & MSCAN_STAT_MSK; - frame->can_dlc = CAN_ERR_DLC; + frame->len = CAN_ERR_DLC; out_8(®s->canrflg, MSCAN_ERR_IF); } static int mscan_rx_poll(struct napi_struct *napi, int quota) { @@ -405,11 +405,11 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota) mscan_get_rx_frame(dev, frame); else if (canrflg & MSCAN_ERR_IF) mscan_get_err_frame(dev, frame, canrflg); stats->rx_packets++; - stats->rx_bytes += frame->can_dlc; + stats->rx_bytes += frame->len; work_done++; netif_receive_skb(skb); } if (work_done < quota) { diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 9509bac8352d..4f9e7ec192aa 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -561,11 +561,11 @@ static void pch_can_error(struct net_device *ndev, u32 status) priv->can.state = state; netif_receive_skb(skb); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; } static irqreturn_t pch_can_interrupt(int irq, void *dev_id) { struct net_device *ndev = (struct net_device *)dev_id; @@ -681,24 +681,24 @@ 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 = can_cc_dlc2len((ioread32(&priv->regs-> + cf->len = can_cc_dlc2len((ioread32(&priv->regs-> ifregs[0].mcont)) & 0xF); - for (i = 0; i < cf->can_dlc; i += 2) { + for (i = 0; i < cf->len; i += 2) { data_reg = ioread16(&priv->regs->ifregs[0].data[i / 2]); cf->data[i] = data_reg; cf->data[i + 1] = data_reg >> 8; } netif_receive_skb(skb); rcv_pkts++; stats->rx_packets++; quota--; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; pch_fifo_thresh(priv, obj_num); obj_num++; } while (quota > 0); @@ -917,19 +917,19 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev) id2 |= PCH_ID2_DIR; iowrite32(id2, &priv->regs->ifregs[1].id2); /* Copy data to register */ - for (i = 0; i < cf->can_dlc; i += 2) { + for (i = 0; i < cf->len; i += 2) { iowrite16(cf->data[i] | (cf->data[i + 1] << 8), &priv->regs->ifregs[1].data[i / 2]); } can_put_echo_skb(skb, ndev, tx_obj_no - PCH_RX_OBJ_END - 1); /* Set the size of the data. Update if2_mcont */ - iowrite32(cf->can_dlc | PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_TXRQXT | + iowrite32(cf->len | PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_TXRQXT | PCH_IF_MCONT_TXIE, &priv->regs->ifregs[1].mcont); pch_can_rw_msg_obj(&priv->regs->ifregs[1].creq, tx_obj_no); return NETDEV_TX_OK; diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index c6077e07214e..fff3a35276aa 100644 --- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -408,11 +408,11 @@ static int pucan_handle_status(struct peak_canfd_priv *priv, stats->rx_dropped++; return -ENOMEM; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; pucan_netif_rx(skb, msg->ts_low, msg->ts_high); return 0; } @@ -436,11 +436,11 @@ static int pucan_handle_cache_critical(struct peak_canfd_priv *priv) cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; cf->data[6] = priv->bec.txerr; cf->data[7] = priv->bec.rxerr; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; stats->rx_packets++; netif_rx(skb); return 0; } @@ -650,11 +650,11 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, struct pucan_tx_msg *msg; u16 msg_size, msg_flags; unsigned long flags; bool should_stop_tx_queue; int room_left; - u8 can_dlc; + u8 len; if (can_dropped_invalid_skb(ndev, skb)) return NETDEV_TX_OK; msg_size = ALIGN(sizeof(*msg) + cf->len, 4); @@ -680,22 +680,22 @@ 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 */ - can_dlc = can_len2dlc(cf->len); + len = can_len2dlc(cf->len); msg_flags |= PUCAN_MSG_EXT_DATA_LEN; if (cf->flags & CANFD_BRS) msg_flags |= PUCAN_MSG_BITRATE_SWITCH; if (cf->flags & CANFD_ESI) msg_flags |= PUCAN_MSG_ERROR_STATE_IND; } else { /* CAN 2.0 frame format */ - can_dlc = cf->len; + len = cf->len; if (cf->can_id & CAN_RTR_FLAG) msg_flags |= PUCAN_MSG_RTR; } @@ -705,11 +705,11 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, /* set driver specific bit to differentiate with application loopback */ if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) msg_flags |= PUCAN_MSG_SELF_RECEIVE; msg->flags = cpu_to_le16(msg_flags); - msg->channel_dlc = PUCAN_MSG_CHANNEL_DLC(priv->index, can_dlc); + msg->channel_dlc = PUCAN_MSG_CHANNEL_DLC(priv->index, len); memcpy(msg->d, cf->data, cf->len); /* struct msg client field is used as an index in the echo skbs ring */ msg->client = priv->echo_idx; diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 711ef4996b48..c803327f8f79 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -362,11 +362,11 @@ static void rcar_can_error(struct net_device *ndev) } } if (skb) { stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } } static void rcar_can_tx_done(struct net_device *ndev) @@ -605,20 +605,20 @@ static netdev_tx_t rcar_can_start_xmit(struct sk_buff *skb, data = (cf->can_id & CAN_SFF_MASK) << RCAR_CAN_SID_SHIFT; if (cf->can_id & CAN_RTR_FLAG) { /* Remote transmission request */ data |= RCAR_CAN_RTR; } else { - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) writeb(cf->data[i], &priv->regs->mb[RCAR_CAN_TX_FIFO_MBX].data[i]); } writel(data, &priv->regs->mb[RCAR_CAN_TX_FIFO_MBX].id); - writeb(cf->can_dlc, &priv->regs->mb[RCAR_CAN_TX_FIFO_MBX].dlc); + writeb(cf->len, &priv->regs->mb[RCAR_CAN_TX_FIFO_MBX].dlc); - priv->tx_dlc[priv->tx_head % RCAR_CAN_FIFO_DEPTH] = cf->can_dlc; + priv->tx_dlc[priv->tx_head % RCAR_CAN_FIFO_DEPTH] = cf->len; can_put_echo_skb(skb, ndev, priv->tx_head % RCAR_CAN_FIFO_DEPTH); priv->tx_head++; /* Start Tx: write 0xff to the TFPCR register to increment * the CPU-side pointer for the transmit FIFO to the next * mailbox location @@ -657,22 +657,22 @@ static void rcar_can_rx_pkt(struct rcar_can_priv *priv) cf->can_id = (data & CAN_EFF_MASK) | CAN_EFF_FLAG; else 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 = can_cc_dlc2len(dlc); + cf->len = can_cc_dlc2len(dlc); if (data & RCAR_CAN_RTR) { cf->can_id |= CAN_RTR_FLAG; } else { - for (dlc = 0; dlc < cf->can_dlc; dlc++) + for (dlc = 0; dlc < cf->len; dlc++) cf->data[dlc] = readb(&priv->regs->mb[RCAR_CAN_RX_FIFO_MBX].data[dlc]); } can_led_event(priv->ndev, CAN_LED_EVENT_RX); - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; stats->rx_packets++; netif_receive_skb(skb); } static int rcar_can_rx_poll(struct napi_struct *napi, int quota) diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 899a3218ce5e..86c6cbdb7e53 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -1023,11 +1023,11 @@ static void rcar_canfd_error(struct net_device *ndev, u32 cerfl, /* Clear channel error interrupts that are handled */ rcar_canfd_write(priv->base, RCANFD_CERFL(ch), RCANFD_CERFL_ERR(~cerfl)); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void rcar_canfd_tx_done(struct net_device *ndev) { @@ -1132,11 +1132,11 @@ static void rcar_canfd_state_change(struct net_device *ndev, tx_state = txerr >= rxerr ? state : 0; rx_state = txerr <= rxerr ? state : 0; can_change_state(ndev, cf, tx_state, rx_state); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } } static irqreturn_t rcar_canfd_channel_interrupt(int irq, void *dev_id) diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c index 6e95193b215b..450c5cfcb3fc 100644 --- a/drivers/net/can/rx-offload.c +++ b/drivers/net/can/rx-offload.c @@ -53,11 +53,11 @@ static int can_rx_offload_napi_poll(struct napi_struct *napi, int quota) (skb = skb_dequeue(&offload->skb_queue))) { struct can_frame *cf = (struct can_frame *)skb->data; work_done++; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_receive_skb(skb); } if (work_done < quota) { napi_complete_done(napi, work_done); diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 1f188f2d126e..d55394aa0b95 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -293,11 +293,11 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb, if (can_dropped_invalid_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); - fi = dlc = cf->can_dlc; + fi = dlc = cf->len; id = cf->can_id; if (id & CAN_RTR_FLAG) fi |= SJA1000_FI_RTR; @@ -365,25 +365,25 @@ static void sja1000_rx(struct net_device *dev) dreg = SJA1000_SFF_BUF; id = (priv->read_reg(priv, SJA1000_ID1) << 3) | (priv->read_reg(priv, SJA1000_ID2) >> 5); } - cf->can_dlc = can_cc_dlc2len(fi & 0x0F); + cf->len = can_cc_dlc2len(fi & 0x0F); if (fi & SJA1000_FI_RTR) { id |= CAN_RTR_FLAG; } else { - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) cf->data[i] = priv->read_reg(priv, dreg++); } cf->can_id = id; /* release receive buffer */ sja1000_write_cmdreg(priv, CMD_RRB); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); can_led_event(dev, CAN_LED_EVENT_RX); } @@ -488,11 +488,11 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) if(state == CAN_STATE_BUS_OFF) can_bus_off(dev); } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); return 0; } diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index b4a39f0449ba..a1bd1be09548 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -104,12 +104,12 @@ static struct net_device **slcan_devs; * SLCAN ENCAPSULATION FORMAT * ************************************************************************/ /* * A CAN frame has a can_id (11 bit standard frame format OR 29 bit extended - * frame format) a data length code (can_dlc) which can be from 0 to 8 - * and up to data bytes as payload. + * frame format) a data length code (len) which can be from 0 to 8 + * and up to data bytes as payload. * Additionally a CAN frame may become a remote transmission frame if the * RTR-bit is set. This causes another ECU to send a CAN frame with the * given can_id. * * The SLCAN ASCII representation of these different frame types is: @@ -126,14 +126,14 @@ static struct net_device **slcan_devs; * The is a one byte ASCII number ('0' - '8') * The section has at much ASCII Hex bytes as defined by the * * Examples: * - * t1230 : can_id 0x123, can_dlc 0, no data - * t4563112233 : can_id 0x456, can_dlc 3, data 0x11 0x22 0x33 - * T12ABCDEF2AA55 : extended can_id 0x12ABCDEF, can_dlc 2, data 0xAA 0x55 - * r1230 : can_id 0x123, can_dlc 0, no data, remote transmission request + * t1230 : can_id 0x123, len 0, no data + * t4563112233 : can_id 0x456, len 3, data 0x11 0x22 0x33 + * T12ABCDEF2AA55 : extended can_id 0x12ABCDEF, len 2, data 0xAA 0x55 + * r1230 : can_id 0x123, len 0, no data, remote transmission request * */ /************************************************************************ * STANDARD SLCAN DECAPSULATION * @@ -154,22 +154,22 @@ static void slc_bump(struct slcan *sl) case 'r': cf.can_id = CAN_RTR_FLAG; fallthrough; case 't': /* store dlc ASCII value and terminate SFF CAN ID string */ - cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN]; + cf.len = sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN]; sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN] = 0; /* point to payload data behind the dlc */ cmd += SLC_CMD_LEN + SLC_SFF_ID_LEN + 1; break; case 'R': cf.can_id = CAN_RTR_FLAG; fallthrough; case 'T': cf.can_id |= CAN_EFF_FLAG; /* store dlc ASCII value and terminate EFF CAN ID string */ - cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN]; + cf.len = sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN]; sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN] = 0; /* point to payload data behind the dlc */ cmd += SLC_CMD_LEN + SLC_EFF_ID_LEN + 1; break; default: @@ -179,19 +179,19 @@ static void slc_bump(struct slcan *sl) if (kstrtou32(sl->rbuff + SLC_CMD_LEN, 16, &tmpid)) return; cf.can_id |= tmpid; - /* get can_dlc from sanitized ASCII value */ - if (cf.can_dlc >= '0' && cf.can_dlc < '9') - cf.can_dlc -= '0'; + /* get len from sanitized ASCII value */ + if (cf.len >= '0' && cf.len < '9') + cf.len -= '0'; else return; /* RTR frames may have a dlc > 0 but they never have any data bytes */ if (!(cf.can_id & CAN_RTR_FLAG)) { - for (i = 0; i < cf.can_dlc; i++) { + for (i = 0; i < cf.len; i++) { tmp = hex_to_bin(*cmd++); if (tmp < 0) return; cf.data[i] = (tmp << 4); tmp = hex_to_bin(*cmd++); @@ -216,11 +216,11 @@ static void slc_bump(struct slcan *sl) can_skb_prv(skb)->skbcnt = 0; skb_put_data(skb, &cf, sizeof(struct can_frame)); sl->dev->stats.rx_packets++; - sl->dev->stats.rx_bytes += cf.can_dlc; + sl->dev->stats.rx_bytes += cf.len; netif_rx_ni(skb); } /* parse tty input stream */ static void slcan_unesc(struct slcan *sl, unsigned char s) @@ -280,15 +280,15 @@ static void slc_encaps(struct slcan *sl, struct can_frame *cf) id >>= 4; } pos += (cf->can_id & CAN_EFF_FLAG) ? SLC_EFF_ID_LEN : SLC_SFF_ID_LEN; - *pos++ = cf->can_dlc + '0'; + *pos++ = cf->len + '0'; /* RTR frames may have a dlc > 0 but they never have any data bytes */ if (!(cf->can_id & CAN_RTR_FLAG)) { - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) pos = hex_byte_pack_upper(pos, cf->data[i]); } *pos++ = '\r'; @@ -302,11 +302,11 @@ static void slc_encaps(struct slcan *sl, struct can_frame *cf) */ set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); actual = sl->tty->ops->write(sl->tty, sl->xbuff, pos - sl->xbuff); sl->xleft = (pos - sl->xbuff) - actual; sl->xhead = sl->xbuff + actual; - sl->dev->stats.tx_bytes += cf->can_dlc; + sl->dev->stats.tx_bytes += cf->len; } /* Write out any remaining transmit buffer. Scheduled when tty is writable */ static void slcan_transmit(struct work_struct *work) { diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c index ccd649a8e37b..7e1536877993 100644 --- a/drivers/net/can/softing/softing_fw.c +++ b/drivers/net/can/softing/softing_fw.c @@ -622,11 +622,11 @@ int softing_startstop(struct net_device *dev, int up) * from here, no errors should occur, or the failed: part * must be reviewed */ memset(&msg, 0, sizeof(msg)); msg.can_id = CAN_ERR_FLAG | CAN_ERR_RESTARTED; - msg.can_dlc = CAN_ERR_DLC; + msg.len = CAN_ERR_DLC; for (j = 0; j < ARRAY_SIZE(card->net); ++j) { if (!(bus_bitmask_start & (1 << j))) continue; netdev = card->net[j]; if (!netdev) diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c index 39e8275ee7ba..03a68bb486fd 100644 --- a/drivers/net/can/softing/softing_main.c +++ b/drivers/net/can/softing/softing_main.c @@ -82,22 +82,22 @@ static netdev_tx_t softing_netdev_start_xmit(struct sk_buff *skb, if (cf->can_id & CAN_EFF_FLAG) *ptr |= CMD_XTD; if (priv->index) *ptr |= CMD_BUS2; ++ptr; - *ptr++ = cf->can_dlc; + *ptr++ = cf->len; *ptr++ = (cf->can_id >> 0); *ptr++ = (cf->can_id >> 8); if (cf->can_id & CAN_EFF_FLAG) { *ptr++ = (cf->can_id >> 16); *ptr++ = (cf->can_id >> 24); } else { /* increment 1, not 2 as you might think */ ptr += 1; } if (!(cf->can_id & CAN_RTR_FLAG)) - memcpy(ptr, &cf->data[0], cf->can_dlc); + memcpy(ptr, &cf->data[0], cf->len); memcpy_toio(&card->dpram[DPRAM_TX + DPRAM_TX_SIZE * fifo_wr], buf, DPRAM_TX_SIZE); if (++fifo_wr >= DPRAM_TX_CNT) fifo_wr = 0; iowrite8(fifo_wr, &card->dpram[DPRAM_TX_WR]); @@ -165,11 +165,11 @@ static int softing_handle_1(struct softing *card) int j; /* reset condition */ iowrite8(0, &card->dpram[DPRAM_RX_LOST]); /* prepare msg */ msg.can_id = CAN_ERR_FLAG | CAN_ERR_CRTL; - msg.can_dlc = CAN_ERR_DLC; + msg.len = CAN_ERR_DLC; msg.data[1] = CAN_ERR_CRTL_RX_OVERFLOW; /* * service to all buses, we don't know which it was applicable * but only service buses that are online */ @@ -216,11 +216,11 @@ static int softing_handle_1(struct softing *card) uint8_t can_state, state; state = *ptr++; msg.can_id = CAN_ERR_FLAG; - msg.can_dlc = CAN_ERR_DLC; + msg.len = CAN_ERR_DLC; if (state & SF_MASK_BUSOFF) { can_state = CAN_STATE_BUS_OFF; msg.can_id |= CAN_ERR_BUSOFF; state = STATE_BUSOFF; @@ -259,11 +259,11 @@ static int softing_handle_1(struct softing *card) } } else { if (cmd & CMD_RTR) msg.can_id |= CAN_RTR_FLAG; - msg.can_dlc = can_cc_dlc2len(*ptr++); + msg.len = can_cc_dlc2len(*ptr++); if (cmd & CMD_XTD) { msg.can_id |= CAN_EFF_FLAG; msg.can_id |= le32_to_cpup((void *)ptr); ptr += 4; } else { @@ -292,19 +292,19 @@ static int softing_handle_1(struct softing *card) --priv->tx.pending; if (card->tx.pending) --card->tx.pending; ++netdev->stats.tx_packets; if (!(msg.can_id & CAN_RTR_FLAG)) - netdev->stats.tx_bytes += msg.can_dlc; + netdev->stats.tx_bytes += msg.len; } else { int ret; ret = softing_netdev_rx(netdev, &msg, ktime); if (ret == NET_RX_SUCCESS) { ++netdev->stats.rx_packets; if (!(msg.can_id & CAN_RTR_FLAG)) - netdev->stats.rx_bytes += msg.can_dlc; + netdev->stats.rx_bytes += msg.len; } else { ++netdev->stats.rx_dropped; } } } diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index 728f34b696a7..f9455de94786 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -275,31 +275,31 @@ static void hi3110_hw_tx(struct spi_device *spi, struct can_frame *frame) (frame->can_id & CAN_EFF_MASK) >> 7; buf[HI3110_FIFO_ID_OFF + 3] = ((frame->can_id & CAN_EFF_MASK) << 1) | ((frame->can_id & CAN_RTR_FLAG) ? 1 : 0); - buf[HI3110_FIFO_EXT_DLC_OFF] = frame->can_dlc; + buf[HI3110_FIFO_EXT_DLC_OFF] = frame->len; memcpy(buf + HI3110_FIFO_EXT_DATA_OFF, - frame->data, frame->can_dlc); + frame->data, frame->len); hi3110_hw_tx_frame(spi, buf, HI3110_TX_EXT_BUF_LEN - - (HI3110_CAN_MAX_DATA_LEN - frame->can_dlc)); + (HI3110_CAN_MAX_DATA_LEN - frame->len)); } else { /* Standard frame */ buf[HI3110_FIFO_ID_OFF] = (frame->can_id & CAN_SFF_MASK) >> 3; buf[HI3110_FIFO_ID_OFF + 1] = ((frame->can_id & CAN_SFF_MASK) << 5) | ((frame->can_id & CAN_RTR_FLAG) ? (1 << 4) : 0); - buf[HI3110_FIFO_STD_DLC_OFF] = frame->can_dlc; + buf[HI3110_FIFO_STD_DLC_OFF] = frame->len; memcpy(buf + HI3110_FIFO_STD_DATA_OFF, - frame->data, frame->can_dlc); + frame->data, frame->len); hi3110_hw_tx_frame(spi, buf, HI3110_TX_STD_BUF_LEN - - (HI3110_CAN_MAX_DATA_LEN - frame->can_dlc)); + (HI3110_CAN_MAX_DATA_LEN - frame->len)); } } static void hi3110_hw_rx_frame(struct spi_device *spi, u8 *buf) { @@ -339,20 +339,20 @@ static void hi3110_hw_rx(struct spi_device *spi) (buf[HI3110_FIFO_WOTIME_ID_OFF] << 3) | ((buf[HI3110_FIFO_WOTIME_ID_OFF + 1] & 0xE0) >> 5); } /* Data length */ - frame->can_dlc = can_cc_dlc2len(buf[HI3110_FIFO_WOTIME_DLC_OFF] & 0x0F); + frame->len = 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; else memcpy(frame->data, buf + HI3110_FIFO_WOTIME_DAT_OFF, - frame->can_dlc); + frame->len); priv->net->stats.rx_packets++; - priv->net->stats.rx_bytes += frame->can_dlc; + priv->net->stats.rx_bytes += frame->len; can_led_event(priv->net, CAN_LED_EVENT_RX); netif_rx_ni(skb); } @@ -583,11 +583,11 @@ static void hi3110_tx_work_handler(struct work_struct *ws) if (priv->can.state == CAN_STATE_BUS_OFF) { hi3110_clean(net); } else { frame = (struct can_frame *)priv->tx_skb->data; hi3110_hw_tx(spi, frame); - priv->tx_len = 1 + frame->can_dlc; + priv->tx_len = 1 + frame->len; can_put_echo_skb(priv->tx_skb, net, 0); priv->tx_skb = NULL; } } mutex_unlock(&priv->hi3110_lock); diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index 6ddebb1c4a24..25859d16d06f 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -642,13 +642,13 @@ static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame, buf[TXBSIDL_OFF] = ((sid & SIDL_SID_MASK) << SIDL_SID_SHIFT) | (exide << SIDL_EXIDE_SHIFT) | ((eid >> SIDL_EID_SHIFT) & SIDL_EID_MASK); buf[TXBEID8_OFF] = GET_BYTE(eid, 1); buf[TXBEID0_OFF] = GET_BYTE(eid, 0); - buf[TXBDLC_OFF] = (rtr << DLC_RTR_SHIFT) | frame->can_dlc; - memcpy(buf + TXBDAT_OFF, frame->data, frame->can_dlc); - mcp251x_hw_tx_frame(spi, buf, frame->can_dlc, tx_buf_idx); + buf[TXBDLC_OFF] = (rtr << DLC_RTR_SHIFT) | frame->len; + memcpy(buf + TXBDAT_OFF, frame->data, frame->len); + mcp251x_hw_tx_frame(spi, buf, frame->len, tx_buf_idx); /* use INSTRUCTION_RTS, to avoid "repeated frame problem" */ priv->spi_tx_buf[0] = INSTRUCTION_RTS(1 << tx_buf_idx); mcp251x_spi_trans(priv->spi, 1); } @@ -718,15 +718,15 @@ static void mcp251x_hw_rx(struct spi_device *spi, int buf_idx) (buf[RXBSIDL_OFF] >> RXBSIDL_SHIFT); if (buf[RXBSIDL_OFF] & RXBSIDL_SRR) frame->can_id |= CAN_RTR_FLAG; } /* Data length */ - frame->can_dlc = can_cc_dlc2len(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); - memcpy(frame->data, buf + RXBDAT_OFF, frame->can_dlc); + frame->len = can_cc_dlc2len(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK); + memcpy(frame->data, buf + RXBDAT_OFF, frame->len); priv->net->stats.rx_packets++; - priv->net->stats.rx_bytes += frame->can_dlc; + priv->net->stats.rx_bytes += frame->len; can_led_event(priv->net, CAN_LED_EVENT_RX); netif_rx_ni(skb); } @@ -996,14 +996,14 @@ static void mcp251x_tx_work_handler(struct work_struct *ws) if (priv->can.state == CAN_STATE_BUS_OFF) { mcp251x_clean(net); } else { frame = (struct can_frame *)priv->tx_skb->data; - if (frame->can_dlc > CAN_FRAME_MAX_DATA_LEN) - frame->can_dlc = CAN_FRAME_MAX_DATA_LEN; + if (frame->len > CAN_FRAME_MAX_DATA_LEN) + frame->len = CAN_FRAME_MAX_DATA_LEN; mcp251x_hw_tx(spi, frame, 0); - priv->tx_len = 1 + frame->can_dlc; + priv->tx_len = 1 + frame->len; can_put_echo_skb(priv->tx_skb, net, 0); priv->tx_skb = NULL; } } mutex_unlock(&priv->mcp_lock); diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index 0e2569779895..098cc9670f0f 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -422,11 +422,11 @@ static netdev_tx_t sun4ican_start_xmit(struct sk_buff *skb, struct net_device *d return NETDEV_TX_OK; netif_stop_queue(dev); id = cf->can_id; - dlc = cf->can_dlc; + dlc = cf->len; msg_flag_n = dlc; if (id & CAN_RTR_FLAG) msg_flag_n |= SUN4I_MSG_RTR_FLAG; @@ -473,11 +473,11 @@ static void sun4i_can_rx(struct net_device *dev) skb = alloc_can_skb(dev, &cf); if (!skb) return; fi = readl(priv->base + SUN4I_REG_BUF0_ADDR); - cf->can_dlc = can_cc_dlc2len(fi & 0x0F); + cf->len = 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) | (readl(priv->base + SUN4I_REG_BUF2_ADDR) << 13) | (readl(priv->base + SUN4I_REG_BUF3_ADDR) << 5) | @@ -491,19 +491,19 @@ static void sun4i_can_rx(struct net_device *dev) /* remote frame ? */ if (fi & SUN4I_MSG_RTR_FLAG) id |= CAN_RTR_FLAG; else - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) cf->data[i] = readl(priv->base + dreg + i * 4); cf->can_id = id; sun4i_can_write_cmdreg(priv, SUN4I_CMD_RELEASE_RBUF); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); can_led_event(dev, CAN_LED_EVENT_RX); } @@ -623,11 +623,11 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) can_bus_off(dev); } if (likely(skb)) { stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } else { return -ENOMEM; } diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 060ce0b16cdc..16cf5ded781f 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -494,11 +494,11 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) return NETDEV_TX_BUSY; } spin_unlock_irqrestore(&priv->mbx_lock, flags); /* Prepare mailbox for transmission */ - data = cf->can_dlc | (get_tx_head_prio(priv) << 8); + data = cf->len | (get_tx_head_prio(priv) << 8); if (cf->can_id & CAN_RTR_FLAG) /* Remote transmission request */ data |= HECC_CANMCF_RTR; hecc_write_mbx(priv, mbxno, HECC_CANMCF, data); if (cf->can_id & CAN_EFF_FLAG) /* Extended frame format */ @@ -506,11 +506,11 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) else /* Standard frame format */ data = (cf->can_id & CAN_SFF_MASK) << 18; hecc_write_mbx(priv, mbxno, HECC_CANMID, data); hecc_write_mbx(priv, mbxno, HECC_CANMDL, be32_to_cpu(*(__be32 *)(cf->data))); - if (cf->can_dlc > 4) + if (cf->len > 4) hecc_write_mbx(priv, mbxno, HECC_CANMDH, be32_to_cpu(*(__be32 *)(cf->data + 4))); else *(u32 *)(cf->data + 4) = 0; can_put_echo_skb(skb, ndev, mbxno); @@ -564,15 +564,15 @@ static struct sk_buff *ti_hecc_mailbox_read(struct can_rx_offload *offload, cf->can_id = (data >> 18) & CAN_SFF_MASK; data = hecc_read_mbx(priv, mbxno, HECC_CANMCF); if (data & HECC_CANMCF_RTR) cf->can_id |= CAN_RTR_FLAG; - cf->can_dlc = can_cc_dlc2len(data & 0xF); + cf->len = can_cc_dlc2len(data & 0xF); data = hecc_read_mbx(priv, mbxno, HECC_CANMDL); *(__be32 *)(cf->data) = cpu_to_be32(data); - if (cf->can_dlc > 4) { + if (cf->len > 4) { data = hecc_read_mbx(priv, mbxno, HECC_CANMDH); *(__be32 *)(cf->data + 4) = cpu_to_be32(data); } *timestamp = hecc_read_stamp(priv, mbxno); diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 288781934149..25eee4466364 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -304,26 +304,26 @@ static void ems_usb_rx_can_msg(struct ems_usb *dev, struct ems_cpc_msg *msg) skb = alloc_can_skb(dev->netdev, &cf); if (skb == NULL) return; cf->can_id = le32_to_cpu(msg->msg.can_msg.id); - cf->can_dlc = can_cc_dlc2len(msg->msg.can_msg.length & 0xF); + cf->len = 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) cf->can_id |= CAN_EFF_FLAG; if (msg->type == CPC_MSG_TYPE_RTR_FRAME || msg->type == CPC_MSG_TYPE_EXT_RTR_FRAME) { 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.can_msg.msg[i]; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) { @@ -394,11 +394,11 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) stats->rx_over_errors++; stats->rx_errors++; } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } /* * callback for bulk IN urb @@ -753,25 +753,25 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne } msg = (struct ems_cpc_msg *)&buf[CPC_HEADER_SIZE]; msg->msg.can_msg.id = cpu_to_le32(cf->can_id & CAN_ERR_MASK); - msg->msg.can_msg.length = cf->can_dlc; + msg->msg.can_msg.length = cf->len; if (cf->can_id & CAN_RTR_FLAG) { msg->type = cf->can_id & CAN_EFF_FLAG ? CPC_CMD_TYPE_EXT_RTR_FRAME : CPC_CMD_TYPE_RTR_FRAME; msg->length = CPC_CAN_MSG_MIN_SIZE; } else { msg->type = cf->can_id & CAN_EFF_FLAG ? CPC_CMD_TYPE_EXT_CAN_FRAME : CPC_CMD_TYPE_CAN_FRAME; - for (i = 0; i < cf->can_dlc; i++) + for (i = 0; i < cf->len; i++) msg->msg.can_msg.msg[i] = cf->data[i]; - msg->length = CPC_CAN_MSG_MIN_SIZE + cf->can_dlc; + msg->length = CPC_CAN_MSG_MIN_SIZE + cf->len; } for (i = 0; i < MAX_TX_URBS; i++) { if (dev->tx_contexts[i].echo_index == MAX_TX_URBS) { context = &dev->tx_contexts[i]; @@ -792,11 +792,11 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne return NETDEV_TX_BUSY; } context->dev = dev; context->echo_index = i; - context->dlc = cf->can_dlc; + context->dlc = cf->len; usb_fill_bulk_urb(urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), buf, size, ems_usb_write_bulk_callback, context); urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; usb_anchor_urb(urb, &dev->tx_submitted); 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 @@ -290,11 +290,11 @@ static void esd_usb2_rx_event(struct esd_usb2_net_priv *priv, priv->bec.txerr = txerr; priv->bec.rxerr = rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } } static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv, @@ -319,24 +319,24 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv, stats->rx_dropped++; return; } 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; 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); } return; } @@ -735,23 +735,23 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb, msg = (struct esd_usb2_msg *)buf; 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) msg->msg.tx.dlc |= ESD_RTR; 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) { context = &priv->tx_contexts[i]; break; @@ -767,11 +767,11 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb, goto releasebuf; } 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 */ usb_fill_bulk_urb(urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), buf, diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index b1729b208788..940589667a7f 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -133,11 +133,11 @@ struct gs_device_bt_const { struct gs_host_frame { u32 echo_id; u32 can_id; - u8 can_dlc; + u8 len; u8 channel; u8 flags; u8 reserved; u8 data[8]; @@ -329,19 +329,19 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) if (!skb) return; cf->can_id = hf->can_id; - cf->can_dlc = can_cc_dlc2len(hf->can_dlc); + cf->len = can_cc_dlc2len(hf->len); memcpy(cf->data, hf->data, 8); /* ERROR frames tell us information about the controller */ if (hf->can_id & CAN_ERR_FLAG) gs_update_state(dev, cf); netdev->stats.rx_packets++; - netdev->stats.rx_bytes += hf->can_dlc; + netdev->stats.rx_bytes += hf->len; netif_rx(skb); } else { /* echo_id == hf->echo_id */ if (hf->echo_id >= GS_MAX_TX_URBS) { netdev_err(netdev, @@ -349,11 +349,11 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) hf->echo_id); goto resubmit_urb; } netdev->stats.tx_packets++; - netdev->stats.tx_bytes += hf->can_dlc; + netdev->stats.tx_bytes += hf->len; txc = gs_get_tx_context(dev, hf->echo_id); /* bad devices send bad echo_ids. */ if (!txc) { @@ -376,11 +376,11 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) skb = alloc_can_err_skb(netdev, &cf); if (!skb) goto resubmit_urb; cf->can_id |= CAN_ERR_CRTL; - cf->can_dlc = CAN_ERR_DLC; + cf->len = CAN_ERR_DLC; cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; stats->rx_over_errors++; stats->rx_errors++; netif_rx(skb); } @@ -502,12 +502,12 @@ static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, hf->channel = dev->channel; cf = (struct can_frame *)skb->data; hf->can_id = cf->can_id; - hf->can_dlc = cf->can_dlc; - memcpy(hf->data, cf->data, cf->can_dlc); + hf->len = cf->len; + memcpy(hf->data, cf->data, cf->len); usb_fill_bulk_urb(urb, dev->udev, usb_sndbulkpipe(dev->udev, GSUSB_ENDPOINT_OUT), hf, sizeof(*hf), diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c index 0f1d3e807d63..d6e18bcb1a7f 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c @@ -256,11 +256,11 @@ int kvaser_usb_can_rx_over_error(struct net_device *netdev) cf->can_id |= CAN_ERR_CRTL; cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); return 0; } 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 906a3a340131..fea87398e5b7 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -893,11 +893,11 @@ static void kvaser_usb_hydra_update_state(struct kvaser_usb_net_priv *priv, cf->data[6] = bec->txerr; cf->data[7] = bec->rxerr; stats = &netdev->stats; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void kvaser_usb_hydra_state_event(const struct kvaser_usb *dev, const struct kvaser_cmd *cmd) @@ -1047,11 +1047,11 @@ kvaser_usb_hydra_error_frame(struct kvaser_usb_net_priv *priv, cf->can_id |= CAN_ERR_BUSERROR; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); priv->bec.txerr = bec.txerr; priv->bec.rxerr = bec.rxerr; } @@ -1082,11 +1082,11 @@ static void kvaser_usb_hydra_one_shot_fail(struct kvaser_usb_net_priv *priv, priv->can.can_stats.arbitration_lost++; } stats->tx_errors++; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void kvaser_usb_hydra_tx_acknowledge(const struct kvaser_usb *dev, const struct kvaser_cmd *cmd) @@ -1178,19 +1178,19 @@ 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 = can_cc_dlc2len(cmd->rx_can.dlc); + cf->len = can_cc_dlc2len(cmd->rx_can.dlc); if (flags & KVASER_USB_HYDRA_CF_FLAG_REMOTE_FRAME) cf->can_id |= CAN_RTR_FLAG; else - memcpy(cf->data, cmd->rx_can.data, cf->can_dlc); + memcpy(cf->data, cmd->rx_can.data, cf->len); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void kvaser_usb_hydra_rx_msg_ext(const struct kvaser_usb *dev, const struct kvaser_cmd_ext *cmd) @@ -1432,11 +1432,11 @@ kvaser_usb_hydra_frame_to_cmd_std(const struct kvaser_usb_net_priv *priv, struct kvaser_cmd *cmd; struct can_frame *cf = (struct can_frame *)skb->data; u32 flags; u32 id; - *frame_len = cf->can_dlc; + *frame_len = cf->len; cmd = kcalloc(1, sizeof(struct kvaser_cmd), GFP_ATOMIC); if (!cmd) return NULL; @@ -1453,11 +1453,11 @@ kvaser_usb_hydra_frame_to_cmd_std(const struct kvaser_usb_net_priv *priv, id |= KVASER_USB_HYDRA_EXTENDED_FRAME_ID; } else { id = cf->can_id & CAN_SFF_MASK; } - cmd->tx_can.dlc = cf->can_dlc; + cmd->tx_can.dlc = cf->len; flags = (cf->can_id & CAN_EFF_FLAG ? KVASER_USB_HYDRA_CF_FLAG_EXTENDED_ID : 0); if (cf->can_id & CAN_RTR_FLAG) 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 916ab994cce4..98c016ef0607 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -348,11 +348,11 @@ kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv, struct kvaser_usb *dev = priv->dev; struct kvaser_cmd *cmd; u8 *cmd_tx_can_flags = NULL; /* GCC */ struct can_frame *cf = (struct can_frame *)skb->data; - *frame_len = cf->can_dlc; + *frame_len = cf->len; cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC); if (cmd) { cmd->u.tx_can.tid = transid & 0xff; cmd->len = *cmd_len = CMD_HEADER_LEN + @@ -381,12 +381,12 @@ kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv, cmd->id = CMD_TX_STD_MESSAGE; cmd->u.tx_can.data[0] = (cf->can_id >> 6) & 0x1f; cmd->u.tx_can.data[1] = cf->can_id & 0x3f; } - cmd->u.tx_can.data[5] = cf->can_dlc; - memcpy(&cmd->u.tx_can.data[6], cf->data, cf->can_dlc); + cmd->u.tx_can.data[5] = cf->len; + memcpy(&cmd->u.tx_can.data[6], cf->data, cf->len); if (cf->can_id & CAN_RTR_FLAG) *cmd_tx_can_flags |= MSG_FLAG_REMOTE_FRAME; } return cmd; @@ -574,11 +574,11 @@ static void kvaser_usb_leaf_tx_acknowledge(const struct kvaser_usb *dev, skb = alloc_can_err_skb(priv->netdev, &cf); if (skb) { cf->can_id |= CAN_ERR_RESTARTED; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } else { netdev_err(priv->netdev, "No memory left for err_skb\n"); } @@ -692,11 +692,11 @@ kvaser_usb_leaf_rx_error_update_can_state(struct kvaser_usb_net_priv *priv, static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev, const struct kvaser_usb_err_summary *es) { struct can_frame *cf; struct can_frame tmp_cf = { .can_id = CAN_ERR_FLAG, - .can_dlc = CAN_ERR_DLC }; + .len = CAN_ERR_DLC }; struct sk_buff *skb; struct net_device_stats *stats; struct kvaser_usb_net_priv *priv; enum can_state old_state, new_state; @@ -776,11 +776,11 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev, cf->data[6] = es->txerr; cf->data[7] = es->rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } /* For USBCAN, report error to userspace if the channels's errors counter * has changed, or we're the only channel seeing a bus error state. @@ -976,17 +976,17 @@ static void kvaser_usb_leaf_rx_can_msg(const struct kvaser_usb *dev, if (cf->can_id & KVASER_EXTENDED_FRAME) cf->can_id &= CAN_EFF_MASK | CAN_EFF_FLAG; else cf->can_id &= CAN_SFF_MASK; - cf->can_dlc = can_cc_dlc2len(cmd->u.leaf.log_message.dlc); + cf->len = 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; else memcpy(cf->data, &cmd->u.leaf.log_message.data, - cf->can_dlc); + cf->len); } else { cf->can_id = ((rx_data[0] & 0x1f) << 6) | (rx_data[1] & 0x3f); if (cmd->id == CMD_RX_EXT_MESSAGE) { cf->can_id <<= 18; @@ -994,20 +994,20 @@ static void kvaser_usb_leaf_rx_can_msg(const struct kvaser_usb *dev, ((rx_data[3] & 0xff) << 6) | (rx_data[4] & 0x3f); cf->can_id |= CAN_EFF_FLAG; } - cf->can_dlc = can_cc_dlc2len(rx_data[5]); + cf->len = can_cc_dlc2len(rx_data[5]); if (cmd->u.rx_can_header.flag & MSG_FLAG_REMOTE_FRAME) cf->can_id |= CAN_RTR_FLAG; else - memcpy(cf->data, &rx_data[6], cf->can_dlc); + memcpy(cf->data, &rx_data[6], cf->len); } stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } static void kvaser_usb_leaf_start_chip_reply(const struct kvaser_usb *dev, const struct kvaser_cmd *cmd) diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 0e6d180597f3..2f2bd18d5a10 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -182,11 +182,11 @@ static inline struct mcba_usb_ctx *mcba_usb_get_free_ctx(struct mcba_priv *priv, ctx = &priv->tx_context[i]; ctx->ndx = i; if (cf) { ctx->can = true; - ctx->dlc = cf->can_dlc; + ctx->dlc = cf->len; } else { ctx->can = false; ctx->dlc = 0; } @@ -348,11 +348,11 @@ static netdev_tx_t mcba_usb_start_xmit(struct sk_buff *skb, put_unaligned_be16((cf->can_id & CAN_SFF_MASK) << 5, &usb_msg.sid); usb_msg.eid = 0; } - usb_msg.dlc = cf->can_dlc; + usb_msg.dlc = cf->len; memcpy(usb_msg.data, cf->data, usb_msg.dlc); if (cf->can_id & CAN_RTR_FLAG) usb_msg.dlc |= MCBA_DLC_RTR_MASK; @@ -449,16 +449,16 @@ 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 = can_cc_dlc2len(msg->dlc & MCBA_DLC_MASK); + cf->len = can_cc_dlc2len(msg->dlc & MCBA_DLC_MASK); - memcpy(cf->data, msg->data, cf->can_dlc); + memcpy(cf->data, msg->data, cf->len); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; can_led_event(priv->netdev, CAN_LED_EVENT_RX); netif_rx(skb); } diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c index f7fc82203489..ec34f87cc02c 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb.c @@ -594,11 +594,11 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n, peak_usb_get_ts_time(&mc->pdev->time_ref, mc->ts16, &hwts->hwtstamp); } mc->netdev->stats.rx_packets++; - mc->netdev->stats.rx_bytes += cf->can_dlc; + mc->netdev->stats.rx_bytes += cf->len; netif_rx(skb); return 0; } @@ -732,11 +732,11 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len) mc->ptr += 2; cf->can_id = le16_to_cpu(tmp16) >> 5; } - cf->can_dlc = can_cc_dlc2len(rec_len); + cf->len = can_cc_dlc2len(rec_len); /* Only first packet timestamp is a word */ if (pcan_usb_decode_ts(mc, !mc->rec_ts_idx)) goto decode_failed; @@ -749,21 +749,21 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len) cf->can_id |= CAN_RTR_FLAG; } else { if ((mc->ptr + rec_len) > mc->end) goto decode_failed; - memcpy(cf->data, mc->ptr, cf->can_dlc); + memcpy(cf->data, mc->ptr, cf->len); mc->ptr += rec_len; } /* convert timestamp into kernel time */ hwts = skb_hwtstamps(skb); peak_usb_get_ts_time(&mc->pdev->time_ref, mc->ts16, &hwts->hwtstamp); /* update statistics */ mc->netdev->stats.rx_packets++; - mc->netdev->stats.rx_bytes += cf->can_dlc; + mc->netdev->stats.rx_bytes += cf->len; /* push the skb */ netif_rx(skb); return 0; @@ -836,11 +836,11 @@ static int pcan_usb_encode_msg(struct peak_usb_device *dev, struct sk_buff *skb, obuf[1] = 1; pc = obuf + PCAN_USB_MSG_HEADER_LEN; /* status/len byte */ - *pc = cf->can_dlc; + *pc = cf->len; if (cf->can_id & CAN_RTR_FLAG) *pc |= PCAN_USB_STATUSLEN_RTR; /* can id */ if (cf->can_id & CAN_EFF_FLAG) { @@ -856,12 +856,12 @@ static int pcan_usb_encode_msg(struct peak_usb_device *dev, struct sk_buff *skb, pc += 2; } /* can data */ if (!(cf->can_id & CAN_RTR_FLAG)) { - memcpy(pc, cf->data, cf->can_dlc); - pc += cf->can_dlc; + memcpy(pc, cf->data, cf->len); + pc += cf->len; } obuf[(*size)-1] = (u8)(stats->tx_packets & 0xff); return 0; 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 1233ef20646a..922280692a8f 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c @@ -579,11 +579,11 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if, return -ENOMEM; peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(sm->ts_low)); netdev->stats.rx_packets++; - netdev->stats.rx_bytes += cf->can_dlc; + netdev->stats.rx_bytes += cf->len; return 0; } /* handle uCAN error message */ @@ -735,11 +735,11 @@ static int pcan_usb_fd_encode_msg(struct peak_usb_device *dev, struct sk_buff *skb, u8 *obuf, size_t *size) { struct pucan_tx_msg *tx_msg = (struct pucan_tx_msg *)obuf; struct canfd_frame *cfd = (struct canfd_frame *)skb->data; u16 tx_msg_size, tx_msg_flags; - u8 can_dlc; + u8 len; if (cfd->len > CANFD_MAX_DLEN) return -EINVAL; tx_msg_size = ALIGN(sizeof(struct pucan_tx_msg) + cfd->len, 4); @@ -754,29 +754,29 @@ 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 */ - can_dlc = can_len2dlc(cfd->len); + len = can_len2dlc(cfd->len); tx_msg_flags |= PUCAN_MSG_EXT_DATA_LEN; if (cfd->flags & CANFD_BRS) tx_msg_flags |= PUCAN_MSG_BITRATE_SWITCH; if (cfd->flags & CANFD_ESI) tx_msg_flags |= PUCAN_MSG_ERROR_STATE_IND; } else { /* CAND 2.0 frames */ - can_dlc = cfd->len; + len = cfd->len; if (cfd->can_id & CAN_RTR_FLAG) tx_msg_flags |= PUCAN_MSG_RTR; } tx_msg->flags = cpu_to_le16(tx_msg_flags); - tx_msg->channel_dlc = PUCAN_MSG_CHANNEL_DLC(dev->ctrl_idx, can_dlc); + tx_msg->channel_dlc = PUCAN_MSG_CHANNEL_DLC(dev->ctrl_idx, len); memcpy(tx_msg->d, cfd->data, cfd->len); /* add null size message to tag the end (messages are 32-bits aligned) */ tx_msg = (struct pucan_tx_msg *)(obuf + tx_msg_size); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index c7564773fb2b..275087c39602 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -530,26 +530,26 @@ static int pcan_usb_pro_handle_canmsg(struct pcan_usb_pro_interface *usb_if, skb = alloc_can_skb(netdev, &can_frame); if (!skb) return -ENOMEM; can_frame->can_id = le32_to_cpu(rx->id); - can_frame->can_dlc = rx->len & 0x0f; + can_frame->len = rx->len & 0x0f; if (rx->flags & PCAN_USBPRO_EXT) can_frame->can_id |= CAN_EFF_FLAG; if (rx->flags & PCAN_USBPRO_RTR) can_frame->can_id |= CAN_RTR_FLAG; else - memcpy(can_frame->data, rx->data, can_frame->can_dlc); + memcpy(can_frame->data, rx->data, can_frame->len); hwts = skb_hwtstamps(skb); peak_usb_get_ts_time(&usb_if->time_ref, le32_to_cpu(rx->ts32), &hwts->hwtstamp); netdev->stats.rx_packets++; - netdev->stats.rx_bytes += can_frame->can_dlc; + netdev->stats.rx_bytes += can_frame->len; netif_rx(skb); return 0; } @@ -660,11 +660,11 @@ static int pcan_usb_pro_handle_error(struct pcan_usb_pro_interface *usb_if, dev->can.state = new_state; hwts = skb_hwtstamps(skb); peak_usb_get_ts_time(&usb_if->time_ref, le32_to_cpu(er->ts32), &hwts->hwtstamp); netdev->stats.rx_packets++; - netdev->stats.rx_bytes += can_frame->can_dlc; + netdev->stats.rx_bytes += can_frame->len; netif_rx(skb); return 0; } @@ -765,18 +765,18 @@ static int pcan_usb_pro_encode_msg(struct peak_usb_device *dev, u8 data_type, len, flags; struct pcan_usb_pro_msg usb_msg; pcan_msg_init_empty(&usb_msg, obuf, *size); - if ((cf->can_id & CAN_RTR_FLAG) || (cf->can_dlc == 0)) + if ((cf->can_id & CAN_RTR_FLAG) || (cf->len == 0)) data_type = PCAN_USBPRO_TXMSG0; - else if (cf->can_dlc <= 4) + else if (cf->len <= 4) data_type = PCAN_USBPRO_TXMSG4; else data_type = PCAN_USBPRO_TXMSG8; - len = (dev->ctrl_idx << 4) | (cf->can_dlc & 0x0f); + len = (dev->ctrl_idx << 4) | (cf->len & 0x0f); flags = 0; if (cf->can_id & CAN_EFF_FLAG) flags |= 0x02; if (cf->can_id & CAN_RTR_FLAG) diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c index 072058c6f6e8..7d92da8954fe 100644 --- a/drivers/net/can/usb/ucan.c +++ b/drivers/net/can/usb/ucan.c @@ -612,19 +612,19 @@ static void ucan_rx_can_msg(struct ucan_priv *up, struct ucan_message_in *m) /* fill the can frame */ cf->can_id = canid; /* compute DLC taking RTR_FLAG into account */ - cf->can_dlc = ucan_can_cc_dlc2len(&m->msg.can_msg, len); + cf->len = 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)) - memcpy(cf->data, m->msg.can_msg.data, cf->can_dlc); + memcpy(cf->data, m->msg.can_msg.data, cf->len); /* don't count error frames as real packets */ stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; /* pass it to Linux */ netif_rx(skb); } @@ -1076,19 +1076,19 @@ static struct urb *ucan_prepare_tx_urb(struct ucan_priv *up, if (cf->can_id & CAN_RTR_FLAG) { mlen = UCAN_OUT_HDR_SIZE + offsetof(struct ucan_can_msg, dlc) + sizeof(m->msg.can_msg.dlc); - m->msg.can_msg.dlc = cf->can_dlc; + m->msg.can_msg.dlc = cf->len; } else { mlen = UCAN_OUT_HDR_SIZE + - sizeof(m->msg.can_msg.id) + cf->can_dlc; - memcpy(m->msg.can_msg.data, cf->data, cf->can_dlc); + sizeof(m->msg.can_msg.id) + cf->len; + memcpy(m->msg.can_msg.data, cf->data, cf->len); } m->len = cpu_to_le16(mlen); - context->dlc = cf->can_dlc; + context->dlc = cf->len; m->subtype = echo_index; /* build the urb */ usb_fill_bulk_urb(urb, up->udev, diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 216c58f8df6e..6517aaeb4bc0 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -447,11 +447,11 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv, priv->bec.txerr = txerr; priv->bec.rxerr = rxerr; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } /* Read data and status frames */ static void usb_8dev_rx_can_msg(struct usb_8dev_priv *priv, @@ -468,22 +468,22 @@ static void usb_8dev_rx_can_msg(struct usb_8dev_priv *priv, skb = alloc_can_skb(priv->netdev, &cf); if (!skb) return; cf->can_id = be32_to_cpu(msg->id); - cf->can_dlc = can_cc_dlc2len(msg->dlc & 0xF); + cf->len = can_cc_dlc2len(msg->dlc & 0xF); if (msg->flags & USB_8DEV_EXTID) cf->can_id |= CAN_EFF_FLAG; if (msg->flags & USB_8DEV_RTR) cf->can_id |= CAN_RTR_FLAG; else - memcpy(cf->data, msg->data, cf->can_dlc); + memcpy(cf->data, msg->data, cf->len); stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); can_led_event(priv->netdev, CAN_LED_EVENT_RX); } else { netdev_warn(priv->netdev, "frame type %d unknown", @@ -635,12 +635,12 @@ static netdev_tx_t usb_8dev_start_xmit(struct sk_buff *skb, if (cf->can_id & CAN_EFF_FLAG) msg->flags |= USB_8DEV_EXTID; msg->id = cpu_to_be32(cf->can_id & CAN_ERR_MASK); - msg->dlc = cf->can_dlc; - memcpy(msg->data, cf->data, cf->can_dlc); + msg->dlc = cf->len; + memcpy(msg->data, cf->data, cf->len); msg->end = USB_8DEV_DATA_END; for (i = 0; i < MAX_TX_URBS; i++) { if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) { context = &priv->tx_contexts[i]; @@ -654,11 +654,11 @@ static netdev_tx_t usb_8dev_start_xmit(struct sk_buff *skb, if (!context) goto nofreecontext; context->priv = priv; context->echo_index = i; - context->dlc = cf->can_dlc; + context->dlc = cf->len; usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, USB_8DEV_ENDP_DATA_TX), buf, size, usb_8dev_write_bulk_callback, context); urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 73e8b1df1071..88831ce0f2f8 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -757,11 +757,11 @@ static int xcan_rx(struct net_device *ndev, int frame_base) id_xcan = priv->read_reg(priv, XCAN_FRAME_ID_OFFSET(frame_base)); dlc = priv->read_reg(priv, XCAN_FRAME_DLC_OFFSET(frame_base)) >> XCAN_DLCR_DLC_SHIFT; /* Change Xilinx CAN data length format to socketCAN data format */ - cf->can_dlc = can_cc_dlc2len(dlc); + cf->len = can_cc_dlc2len(dlc); /* Change Xilinx CAN ID format to socketCAN ID format */ if (id_xcan & XCAN_IDR_IDE_MASK) { /* The received frame is an Extended format frame */ cf->can_id = (id_xcan & XCAN_IDR_ID1_MASK) >> 3; @@ -782,17 +782,17 @@ static int xcan_rx(struct net_device *ndev, int frame_base) data[0] = priv->read_reg(priv, XCAN_FRAME_DW1_OFFSET(frame_base)); data[1] = priv->read_reg(priv, XCAN_FRAME_DW2_OFFSET(frame_base)); if (!(cf->can_id & CAN_RTR_FLAG)) { /* Change Xilinx CAN data format to socketCAN data format */ - if (cf->can_dlc > 0) + if (cf->len > 0) *(__be32 *)(cf->data) = cpu_to_be32(data[0]); - if (cf->can_dlc > 4) + if (cf->len > 4) *(__be32 *)(cf->data + 4) = cpu_to_be32(data[1]); } - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; stats->rx_packets++; netif_receive_skb(skb); return 1; } @@ -968,11 +968,11 @@ static void xcan_update_error_state_after_rxtx(struct net_device *ndev) if (skb) { struct net_device_stats *stats = &ndev->stats; stats->rx_packets++; - stats->rx_bytes += cf->can_dlc; + stats->rx_bytes += cf->len; netif_rx(skb); } } } diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 802606e36b58..77da061c21c9 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -183,12 +183,12 @@ static inline void can_set_static_ctrlmode(struct net_device *dev, /* override MTU which was set by default in can_setup()? */ if (static_mode & CAN_CTRLMODE_FD) dev->mtu = CANFD_MTU; } -/* get data length from can_dlc with sanitized can_dlc */ -u8 can_dlc2len(u8 can_dlc); +/* get data length from raw data length code (DLC) */ +u8 can_dlc2len(u8 dlc); /* map the sanitized data length to an appropriate data length code */ u8 can_len2dlc(u8 len); struct net_device *alloc_candev_mqs(int sizeof_priv, unsigned int echo_skb_max, diff --git a/net/can/af_can.c b/net/can/af_can.c index 6373ab9c5507..fd558e4df8bb 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -868,11 +868,11 @@ static struct pernet_operations can_pernet_ops __read_mostly = { static __init int can_init(void) { int err; /* check for correct padding to be able to use the structs similarly */ - BUILD_BUG_ON(offsetof(struct can_frame, can_dlc) != + BUILD_BUG_ON(offsetof(struct can_frame, len) != offsetof(struct canfd_frame, len) || offsetof(struct can_frame, data) != offsetof(struct canfd_frame, data)); pr_info("can: controller area network core\n"); diff --git a/net/can/gw.c b/net/can/gw.c index 6b790b6ff8d2..de5e8859ec9b 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -205,11 +205,11 @@ static void canframecpy(struct canfd_frame *dst, struct can_frame *src) * data are copied in the 3 bytes hole of the struct. This is needed * to make easy compares of the data in the struct cf_mod. */ dst->can_id = src->can_id; - dst->len = src->can_dlc; + dst->len = src->len; *(u64 *)dst->data = *(u64 *)src->data; } static void canfdframecpy(struct canfd_frame *dst, struct canfd_frame *src) { diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c index 137054bff9ec..bb914d8b4216 100644 --- a/net/can/j1939/main.c +++ b/net/can/j1939/main.c @@ -60,11 +60,11 @@ static void j1939_can_recv(struct sk_buff *iskb, void *data) */ cf = (void *)skb->data; skb_pull(skb, J1939_CAN_HDR); /* fix length, set to dlc, with 8 maximum */ - skb_trim(skb, min_t(uint8_t, cf->can_dlc, 8)); + skb_trim(skb, min_t(uint8_t, cf->len, 8)); /* set addr */ skcb = j1939_skb_to_cb(skb); memset(skcb, 0, sizeof(*skcb)); @@ -333,11 +333,11 @@ int j1939_send_one(struct j1939_priv *priv, struct sk_buff *skb) skcb->addr.sa; if (j1939_pgn_is_pdu1(skcb->addr.pgn)) canid |= skcb->addr.da << 8; cf->can_id = canid; - cf->can_dlc = dlc; + cf->len = dlc; return can_send(skb, 1); failed: kfree_skb(skb);