diff options
Diffstat (limited to 'drivers/net/can')
41 files changed, 96 insertions, 90 deletions
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index 3a2d109a3792..199cb200f2bd 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -452,7 +452,7 @@ static netdev_tx_t at91_start_xmit(struct sk_buff *skb, struct net_device *dev) unsigned int mb, prio; u32 reg_mid, reg_mcr; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; mb = get_tx_next_mb(priv); diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index d6605dbb7737..c63f7fc1e691 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -457,7 +457,7 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb, struct c_can_tx_ring *tx_ring = &priv->tx; u32 idx, obj, cmd = IF_COMM_TX; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; if (c_can_tx_busy(priv, tx_ring)) diff --git a/drivers/net/can/can327.c b/drivers/net/can/can327.c index 0aa1af31d0fe..ed3d0b8989a0 100644 --- a/drivers/net/can/can327.c +++ b/drivers/net/can/can327.c @@ -263,8 +263,10 @@ static void can327_feed_frame_to_netdev(struct can327 *elm, struct sk_buff *skb) { lockdep_assert_held(&elm->lock); - if (!netif_running(elm->dev)) + if (!netif_running(elm->dev)) { + kfree_skb(skb); return; + } /* Queue for NAPI pickup. * rx-offload will update stats and LEDs for us. @@ -813,7 +815,7 @@ static netdev_tx_t can327_netdev_start_xmit(struct sk_buff *skb, struct can327 *elm = netdev_priv(dev); struct can_frame *frame = (struct can_frame *)skb->data; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; /* We shouldn't get here after a hardware fault: diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index 0b9dfc76e769..30909f3aab57 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -429,7 +429,7 @@ static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev) struct cc770_priv *priv = netdev_priv(dev); unsigned int mo = obj2msgobj(CC770_OBJ_TX); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/cc770/cc770_isa.c b/drivers/net/can/cc770/cc770_isa.c index 194c86e0f340..8f6dccd5a587 100644 --- a/drivers/net/can/cc770/cc770_isa.c +++ b/drivers/net/can/cc770/cc770_isa.c @@ -264,22 +264,24 @@ static int cc770_isa_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "couldn't register device (err=%d)\n", err); - goto exit_unmap; + goto exit_free; } dev_info(&pdev->dev, "device registered (reg_base=0x%p, irq=%d)\n", priv->reg_base, dev->irq); return 0; - exit_unmap: +exit_free: + free_cc770dev(dev); +exit_unmap: if (mem[idx]) iounmap(base); - exit_release: +exit_release: if (mem[idx]) release_mem_region(mem[idx], iosize); else release_region(port[idx], iosize); - exit: +exit: return err; } diff --git a/drivers/net/can/ctucanfd/ctucanfd_base.c b/drivers/net/can/ctucanfd/ctucanfd_base.c index b8da15ea6ad9..64c349fd4600 100644 --- a/drivers/net/can/ctucanfd/ctucanfd_base.c +++ b/drivers/net/can/ctucanfd/ctucanfd_base.c @@ -600,7 +600,7 @@ static netdev_tx_t ctucan_start_xmit(struct sk_buff *skb, struct net_device *nde bool ok; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (unlikely(!CTU_CAN_FD_TXTNF(priv))) { diff --git a/drivers/net/can/dev/skb.c b/drivers/net/can/dev/skb.c index 791a51e2f5d6..241ec636e91f 100644 --- a/drivers/net/can/dev/skb.c +++ b/drivers/net/can/dev/skb.c @@ -5,7 +5,6 @@ */ #include <linux/can/dev.h> -#include <linux/can/netlink.h> #include <linux/module.h> #define MOD_DESC "CAN device driver interface" @@ -337,8 +336,6 @@ static bool can_skb_headroom_valid(struct net_device *dev, struct sk_buff *skb) /* Drop a given socketbuffer if it does not contain a valid CAN frame. */ bool can_dropped_invalid_skb(struct net_device *dev, struct sk_buff *skb) { - struct can_priv *priv = netdev_priv(dev); - switch (ntohs(skb->protocol)) { case ETH_P_CAN: if (!can_is_can_skb(skb)) @@ -359,13 +356,8 @@ bool can_dropped_invalid_skb(struct net_device *dev, struct sk_buff *skb) goto inval_skb; } - if (!can_skb_headroom_valid(dev, skb)) { + if (!can_skb_headroom_valid(dev, skb)) goto inval_skb; - } else if (priv->ctrlmode & CAN_CTRLMODE_LISTENONLY) { - netdev_info_once(dev, - "interface in listen only mode, dropping skb\n"); - goto inval_skb; - } return false; diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c index 5ee38e586fd8..9bdadd716f4e 100644 --- a/drivers/net/can/flexcan/flexcan-core.c +++ b/drivers/net/can/flexcan/flexcan-core.c @@ -742,7 +742,7 @@ static netdev_tx_t flexcan_start_xmit(struct sk_buff *skb, struct net_device *de u32 ctrl = FLEXCAN_MB_CODE_TX_DATA | ((can_fd_len2dlc(cfd->len)) << 16); int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c index 6c37aab93eb3..4bedcc3eea0d 100644 --- a/drivers/net/can/grcan.c +++ b/drivers/net/can/grcan.c @@ -1345,7 +1345,7 @@ static netdev_tx_t grcan_start_xmit(struct sk_buff *skb, unsigned long flags; u32 oneshotmode = priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; /* Trying to transmit in silent mode will generate error interrupts, but diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 8d42b7e6661f..07eaf724a572 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -860,7 +860,7 @@ static netdev_tx_t ifi_canfd_start_xmit(struct sk_buff *skb, u32 txst, txid, txdlc; int i; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; /* Check if the TX buffer is full */ diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 71a2caae0757..0732a5092141 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1693,7 +1693,7 @@ static netdev_tx_t ican3_xmit(struct sk_buff *skb, struct net_device *ndev) void __iomem *desc_addr; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; spin_lock_irqsave(&mod->lock, flags); diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 4e9680c8eb34..bcad11709bc9 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -772,7 +772,7 @@ static netdev_tx_t kvaser_pciefd_start_xmit(struct sk_buff *skb, int nwords; u8 count; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; nwords = kvaser_pciefd_prepare_tx_packet(&packet, can, skb); diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index dcb582563d5e..e5575d2755e4 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1721,7 +1721,7 @@ static netdev_tx_t m_can_start_xmit(struct sk_buff *skb, { struct m_can_classdev *cdev = netdev_priv(dev); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; if (cdev->is_peripheral) { @@ -1909,7 +1909,7 @@ int m_can_class_get_clocks(struct m_can_classdev *cdev) cdev->hclk = devm_clk_get(cdev->dev, "hclk"); cdev->cclk = devm_clk_get(cdev->dev, "cclk"); - if (IS_ERR(cdev->cclk)) { + if (IS_ERR(cdev->hclk) || IS_ERR(cdev->cclk)) { dev_err(cdev->dev, "no clock found\n"); ret = -ENODEV; } diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index 8f184a852a0a..f2219aa2824b 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -120,7 +120,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_ALL_TYPES); if (ret < 0) - return ret; + goto err_free_dev; mcan_class->dev = &pci->dev; mcan_class->net->irq = pci_irq_vector(pci, 0); @@ -132,7 +132,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) ret = m_can_class_register(mcan_class); if (ret) - goto err; + goto err_free_irq; /* Enable interrupt control at CAN wrapper IP */ writel(0x1, base + CTL_CSR_INT_CTL_OFFSET); @@ -144,8 +144,10 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) return 0; -err: +err_free_irq: pci_free_irq_vectors(pci); +err_free_dev: + m_can_class_free_dev(mcan_class->net); return ret; } @@ -161,6 +163,7 @@ static void m_can_pci_remove(struct pci_dev *pci) writel(0x0, priv->base + CTL_CSR_INT_CTL_OFFSET); m_can_class_unregister(mcan_class); + m_can_class_free_dev(mcan_class->net); pci_free_irq_vectors(pci); } diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index c469b2f3e57d..b0ed798ae70f 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -322,14 +322,14 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev) &mscan_clksrc); if (!priv->can.clock.freq) { dev_err(&ofdev->dev, "couldn't get MSCAN clock properties\n"); - goto exit_free_mscan; + goto exit_put_clock; } err = register_mscandev(dev, mscan_clksrc); if (err) { dev_err(&ofdev->dev, "registering %s failed (err=%d)\n", DRV_NAME, err); - goto exit_free_mscan; + goto exit_put_clock; } dev_info(&ofdev->dev, "MSCAN at 0x%p, irq %d, clock %d Hz\n", @@ -337,7 +337,9 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev) return 0; -exit_free_mscan: +exit_put_clock: + if (data->put_clock) + data->put_clock(ofdev); free_candev(dev); exit_dispose_irq: irq_dispose_mapping(irq); diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c index 2119fbb287ef..a6829cdc0e81 100644 --- a/drivers/net/can/mscan/mscan.c +++ b/drivers/net/can/mscan/mscan.c @@ -191,7 +191,7 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev) int i, rtr, buf_id; u32 can_id; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; out_8(®s->cantier, 0); diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 0558ff67ec6a..2a44b2803e55 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -882,7 +882,7 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev) int i; u32 id2; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; tx_obj_no = priv->tx_obj; diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index f8420cc1d907..31c9c127e24b 100644 --- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -651,7 +651,7 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, int room_left; u8 len; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; msg_size = ALIGN(sizeof(*msg) + cf->len, 4); diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 6ee968c59ac9..cc43c9c5e38c 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -590,7 +590,7 @@ static netdev_tx_t rcar_can_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; u32 data, i; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (cf->can_id & CAN_EFF_FLAG) /* Extended frame format */ diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 567620d215f8..b306cf554634 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -81,8 +81,7 @@ enum rcanfd_chip_id { /* RSCFDnCFDGERFL / RSCFDnGERFL */ #define RCANFD_GERFL_EEF0_7 GENMASK(23, 16) -#define RCANFD_GERFL_EEF1 BIT(17) -#define RCANFD_GERFL_EEF0 BIT(16) +#define RCANFD_GERFL_EEF(ch) BIT(16 + (ch)) #define RCANFD_GERFL_CMPOF BIT(3) /* CAN FD only */ #define RCANFD_GERFL_THLES BIT(2) #define RCANFD_GERFL_MES BIT(1) @@ -90,7 +89,7 @@ enum rcanfd_chip_id { #define RCANFD_GERFL_ERR(gpriv, x) \ ((x) & (reg_v3u(gpriv, RCANFD_GERFL_EEF0_7, \ - RCANFD_GERFL_EEF0 | RCANFD_GERFL_EEF1) | \ + RCANFD_GERFL_EEF(0) | RCANFD_GERFL_EEF(1)) | \ RCANFD_GERFL_MES | \ ((gpriv)->fdmode ? RCANFD_GERFL_CMPOF : 0))) @@ -936,12 +935,8 @@ static void rcar_canfd_global_error(struct net_device *ndev) u32 ridx = ch + RCANFD_RFFIFO_IDX; gerfl = rcar_canfd_read(priv->base, RCANFD_GERFL); - if ((gerfl & RCANFD_GERFL_EEF0) && (ch == 0)) { - netdev_dbg(ndev, "Ch0: ECC Error flag\n"); - stats->tx_dropped++; - } - if ((gerfl & RCANFD_GERFL_EEF1) && (ch == 1)) { - netdev_dbg(ndev, "Ch1: ECC Error flag\n"); + if (gerfl & RCANFD_GERFL_EEF(ch)) { + netdev_dbg(ndev, "Ch%u: ECC Error flag\n", ch); stats->tx_dropped++; } if (gerfl & RCANFD_GERFL_MES) { @@ -1157,11 +1152,13 @@ static void rcar_canfd_handle_global_receive(struct rcar_canfd_global *gpriv, u3 { struct rcar_canfd_channel *priv = gpriv->ch[ch]; u32 ridx = ch + RCANFD_RFFIFO_IDX; - u32 sts; + u32 sts, cc; /* Handle Rx interrupts */ sts = rcar_canfd_read(priv->base, RCANFD_RFSTS(gpriv, ridx)); - if (likely(sts & RCANFD_RFSTS_RFIF)) { + cc = rcar_canfd_read(priv->base, RCANFD_RFCC(gpriv, ridx)); + if (likely(sts & RCANFD_RFSTS_RFIF && + cc & RCANFD_RFCC_RFIE)) { if (napi_schedule_prep(&priv->napi)) { /* Disable Rx FIFO interrupts */ rcar_canfd_clear_bit(priv->base, @@ -1244,11 +1241,9 @@ static void rcar_canfd_handle_channel_tx(struct rcar_canfd_global *gpriv, u32 ch static irqreturn_t rcar_canfd_channel_tx_interrupt(int irq, void *dev_id) { - struct rcar_canfd_global *gpriv = dev_id; - u32 ch; + struct rcar_canfd_channel *priv = dev_id; - for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) - rcar_canfd_handle_channel_tx(gpriv, ch); + rcar_canfd_handle_channel_tx(priv->gpriv, priv->channel); return IRQ_HANDLED; } @@ -1276,11 +1271,9 @@ static void rcar_canfd_handle_channel_err(struct rcar_canfd_global *gpriv, u32 c static irqreturn_t rcar_canfd_channel_err_interrupt(int irq, void *dev_id) { - struct rcar_canfd_global *gpriv = dev_id; - u32 ch; + struct rcar_canfd_channel *priv = dev_id; - for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) - rcar_canfd_handle_channel_err(gpriv, ch); + rcar_canfd_handle_channel_err(priv->gpriv, priv->channel); return IRQ_HANDLED; } @@ -1483,7 +1476,7 @@ static netdev_tx_t rcar_canfd_start_xmit(struct sk_buff *skb, unsigned long flags; u32 ch = priv->channel; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (cf->can_id & CAN_EFF_FLAG) { @@ -1721,6 +1714,7 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch, priv->ndev = ndev; priv->base = gpriv->base; priv->channel = ch; + priv->gpriv = gpriv; priv->can.clock.freq = fcan_freq; dev_info(&pdev->dev, "can_clk rate is %u\n", priv->can.clock.freq); @@ -1749,7 +1743,7 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch, } err = devm_request_irq(&pdev->dev, err_irq, rcar_canfd_channel_err_interrupt, 0, - irq_name, gpriv); + irq_name, priv); if (err) { dev_err(&pdev->dev, "devm_request_irq CH Err(%d) failed, error %d\n", err_irq, err); @@ -1763,7 +1757,7 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch, } err = devm_request_irq(&pdev->dev, tx_irq, rcar_canfd_channel_tx_interrupt, 0, - irq_name, gpriv); + irq_name, priv); if (err) { dev_err(&pdev->dev, "devm_request_irq Tx (%d) failed, error %d\n", tx_irq, err); @@ -1789,7 +1783,6 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch, priv->can.do_set_mode = rcar_canfd_do_set_mode; priv->can.do_get_berr_counter = rcar_canfd_get_berr_counter; - priv->gpriv = gpriv; SET_NETDEV_DEV(ndev, &pdev->dev); netif_napi_add_weight(ndev, &priv->napi, rcar_canfd_rx_poll, diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 1bb1129b0450..aac5956e4a53 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -291,7 +291,7 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb, u8 cmd_reg_val = 0x00; int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/sja1000/sja1000_isa.c b/drivers/net/can/sja1000/sja1000_isa.c index d513fac50718..db3e767d5320 100644 --- a/drivers/net/can/sja1000/sja1000_isa.c +++ b/drivers/net/can/sja1000/sja1000_isa.c @@ -202,22 +202,24 @@ static int sja1000_isa_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "registering %s failed (err=%d)\n", DRV_NAME, err); - goto exit_unmap; + goto exit_free; } dev_info(&pdev->dev, "%s device registered (reg_base=0x%p, irq=%d)\n", DRV_NAME, priv->reg_base, dev->irq); return 0; - exit_unmap: +exit_free: + free_sja1000dev(dev); +exit_unmap: if (mem[idx]) iounmap(base); - exit_release: +exit_release: if (mem[idx]) release_mem_region(mem[idx], iosize); else release_region(port[idx], iosize); - exit: +exit: return err; } diff --git a/drivers/net/can/slcan/slcan-core.c b/drivers/net/can/slcan/slcan-core.c index 8d13fdf8c28a..fbb34139daa1 100644 --- a/drivers/net/can/slcan/slcan-core.c +++ b/drivers/net/can/slcan/slcan-core.c @@ -594,7 +594,7 @@ static netdev_tx_t slcan_netdev_xmit(struct sk_buff *skb, { struct slcan *sl = netdev_priv(dev); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; spin_lock(&sl->lock); diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c index a5ef57f415f7..c72f505d29fe 100644 --- a/drivers/net/can/softing/softing_main.c +++ b/drivers/net/can/softing/softing_main.c @@ -60,7 +60,7 @@ static netdev_tx_t softing_netdev_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; uint8_t buf[DPRAM_TX_SIZE]; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; spin_lock(&card->spin); diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index b87dc420428d..e1b8533a602e 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -373,7 +373,7 @@ static netdev_tx_t hi3110_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } - if (can_dropped_invalid_skb(net, skb)) + if (can_dev_dropped_skb(net, skb)) return NETDEV_TX_OK; netif_stop_queue(net); diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index c320de474f40..79c4bab5f724 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -789,7 +789,7 @@ static netdev_tx_t mcp251x_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } - if (can_dropped_invalid_skb(net, skb)) + if (can_dev_dropped_skb(net, skb)) return NETDEV_TX_OK; netif_stop_queue(net); @@ -1415,11 +1415,14 @@ static int mcp251x_can_probe(struct spi_device *spi) ret = mcp251x_gpio_setup(priv); if (ret) - goto error_probe; + goto out_unregister_candev; netdev_info(net, "MCP%x successfully initialized.\n", priv->model); return 0; +out_unregister_candev: + unregister_candev(net); + error_probe: destroy_workqueue(priv->wq); priv->wq = NULL; diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c index ffb6c36b7d9b..160528d3cc26 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c @@ -172,7 +172,7 @@ netdev_tx_t mcp251xfd_start_xmit(struct sk_buff *skb, u8 tx_head; int err; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (mcp251xfd_tx_busy(priv, tx_ring)) diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index 525309da1320..2b78f9197681 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -429,7 +429,7 @@ static netdev_tx_t sun4ican_start_xmit(struct sk_buff *skb, struct net_device *d canid_t id; int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index b218fb3c6b76..27700f72eac2 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -470,7 +470,7 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) u32 mbxno, mbx_mask, data; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; mbxno = get_tx_head_mb(priv); diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index d31191686a54..050c0b49938a 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -747,7 +747,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne size_t size = CPC_HEADER_SIZE + CPC_MSG_HEADER_LEN + sizeof(struct cpc_can_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c index 1bcfad11b1e4..81b88e9e5bdc 100644 --- a/drivers/net/can/usb/esd_usb.c +++ b/drivers/net/can/usb/esd_usb.c @@ -725,7 +725,7 @@ static netdev_tx_t esd_usb_start_xmit(struct sk_buff *skb, int ret = NETDEV_TX_OK; size_t size = sizeof(struct esd_usb_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.c b/drivers/net/can/usb/etas_es58x/es58x_core.c index 51294b717040..ddb7c5735c9a 100644 --- a/drivers/net/can/usb/etas_es58x/es58x_core.c +++ b/drivers/net/can/usb/etas_es58x/es58x_core.c @@ -1913,7 +1913,7 @@ static netdev_tx_t es58x_start_xmit(struct sk_buff *skb, unsigned int frame_len; int ret; - if (can_dropped_invalid_skb(netdev, skb)) { + if (can_dev_dropped_skb(netdev, skb)) { if (priv->tx_urb) goto xmit_commit; return NETDEV_TX_OK; @@ -2091,8 +2091,11 @@ static int es58x_init_netdev(struct es58x_device *es58x_dev, int channel_idx) netdev->dev_port = channel_idx; ret = register_candev(netdev); - if (ret) + if (ret) { + es58x_dev->netdev[channel_idx] = NULL; + free_candev(netdev); return ret; + } netdev_queue_set_dql_min_limit(netdev_get_tx_queue(netdev, 0), es58x_dev->param->dql_min_limit); diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index f0065d40eb24..9c2c25fde3d1 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -723,7 +723,7 @@ static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, unsigned int idx; struct gs_tx_context *txc; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* find an empty context to keep track of transmission */ 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 e91648ed7386..802e27c0eced 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c @@ -570,7 +570,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, unsigned int i; unsigned long flags; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; urb = usb_alloc_urb(0, GFP_ATOMIC); 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 7b52fda73d82..66f672ea631b 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -1875,7 +1875,7 @@ static int kvaser_usb_hydra_start_chip(struct kvaser_usb_net_priv *priv) { int err; - init_completion(&priv->start_comp); + reinit_completion(&priv->start_comp); err = kvaser_usb_hydra_send_simple_cmd(priv->dev, CMD_START_CHIP_REQ, priv->channel); @@ -1893,7 +1893,7 @@ static int kvaser_usb_hydra_stop_chip(struct kvaser_usb_net_priv *priv) { int err; - init_completion(&priv->stop_comp); + reinit_completion(&priv->stop_comp); /* Make sure we do not report invalid BUS_OFF from CMD_CHIP_STATE_EVENT * see comment in kvaser_usb_hydra_update_state() 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 50f2ac8319ff..19958037720f 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -1320,7 +1320,7 @@ static int kvaser_usb_leaf_start_chip(struct kvaser_usb_net_priv *priv) { int err; - init_completion(&priv->start_comp); + reinit_completion(&priv->start_comp); err = kvaser_usb_leaf_send_simple_cmd(priv->dev, CMD_START_CHIP, priv->channel); @@ -1338,7 +1338,7 @@ static int kvaser_usb_leaf_stop_chip(struct kvaser_usb_net_priv *priv) { int err; - init_completion(&priv->stop_comp); + reinit_completion(&priv->stop_comp); err = kvaser_usb_leaf_send_simple_cmd(priv->dev, CMD_STOP_CHIP, priv->channel); diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 69346c63021f..47619e9cb005 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -47,6 +47,10 @@ #define MCBA_VER_REQ_USB 1 #define MCBA_VER_REQ_CAN 2 +/* Drive the CAN_RES signal LOW "0" to activate R24 and R25 */ +#define MCBA_VER_TERMINATION_ON 0 +#define MCBA_VER_TERMINATION_OFF 1 + #define MCBA_SIDL_EXID_MASK 0x8 #define MCBA_DLC_MASK 0xf #define MCBA_DLC_RTR_MASK 0x40 @@ -311,7 +315,7 @@ static netdev_tx_t mcba_usb_start_xmit(struct sk_buff *skb, .cmd_id = MBCA_CMD_TRANSMIT_MESSAGE_EV }; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; ctx = mcba_usb_get_free_ctx(priv, cf); @@ -463,7 +467,7 @@ static void mcba_usb_process_ka_usb(struct mcba_priv *priv, priv->usb_ka_first_pass = false; } - if (msg->termination_state) + if (msg->termination_state == MCBA_VER_TERMINATION_ON) priv->can.termination = MCBA_TERMINATION_ENABLED; else priv->can.termination = MCBA_TERMINATION_DISABLED; @@ -785,9 +789,9 @@ static int mcba_set_termination(struct net_device *netdev, u16 term) }; if (term == MCBA_TERMINATION_ENABLED) - usb_msg.termination = 1; + usb_msg.termination = MCBA_VER_TERMINATION_ON; else - usb_msg.termination = 0; + usb_msg.termination = MCBA_VER_TERMINATION_OFF; mcba_usb_xmit_cmd(priv, (struct mcba_usb_msg *)&usb_msg); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c index 225697d70a9a..1d996d3320fe 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c @@ -351,7 +351,7 @@ static netdev_tx_t peak_usb_ndo_start_xmit(struct sk_buff *skb, int i, err; size_t size = dev->adapter->tx_buffer_size; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; for (i = 0; i < PCAN_USB_MAX_TX_URBS; i++) diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c index 7c35f50fda4e..67c2ff407d06 100644 --- a/drivers/net/can/usb/ucan.c +++ b/drivers/net/can/usb/ucan.c @@ -1120,7 +1120,7 @@ static netdev_tx_t ucan_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; /* check skb */ - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* allocate a context and slow down tx path, if fifo state is low */ diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 64c00abe91cf..8a5596ce4e46 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -602,7 +602,7 @@ static netdev_tx_t usb_8dev_start_xmit(struct sk_buff *skb, int i, err; size_t size = sizeof(struct usb_8dev_tx_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 5d3172795ad0..43c812ea1de0 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -743,7 +743,7 @@ static netdev_tx_t xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev) struct xcan_priv *priv = netdev_priv(ndev); int ret; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (priv->devtype.flags & XCAN_FLAG_TX_MAILBOXES) |