Merge tag 'linux-can-next-for-4.16-20180105' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2017-12-01,Re: pull-request: can-next

this is a pull request of 7 patches for net-next/master.

All patches are by me. Patch 6 is for the "can_raw" protocol and add
error checking to the bind() function. All other patches clean up the
coding style and remove unused parameters in various CAN drivers and
infrastructure.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/can/rx-offload.c

@@ -256,7 +256,7 @@ int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *
 		weight = offload->mb_first - offload->mb_last;
 	}
 
-	return can_rx_offload_init_queue(dev, offload, weight);;
+	return can_rx_offload_init_queue(dev, offload, weight);
 }
 EXPORT_SYMBOL_GPL(can_rx_offload_add_timestamp);
 

drivers/net/can/slcan.c

@@ -508,7 +508,7 @@ static void slc_sync(void)
 }
 
 /* Find a free SLCAN channel, and link in this `tty' line. */
-static struct slcan *slc_alloc(dev_t line)
+static struct slcan *slc_alloc(void)
 {
 	int i;
 	char name[IFNAMSIZ];
@@ -583,7 +583,7 @@ static int slcan_open(struct tty_struct *tty)
 
 	/* OK.  Find a free SLCAN channel to use. */
 	err = -ENFILE;
-	sl = slc_alloc(tty_devnum(tty));
+	sl = slc_alloc();
 	if (sl == NULL)
 		goto err_exit;
 

drivers/net/can/spi/mcp251x.c

@@ -612,8 +612,7 @@ static int mcp251x_do_set_bittiming(struct net_device *net)
 	return 0;
 }
 
-static int mcp251x_setup(struct net_device *net, struct mcp251x_priv *priv,
-			 struct spi_device *spi)
+static int mcp251x_setup(struct net_device *net, struct spi_device *spi)
 {
 	mcp251x_do_set_bittiming(net);
 
@@ -775,7 +774,7 @@ static void mcp251x_restart_work_handler(struct work_struct *ws)
 	mutex_lock(&priv->mcp_lock);
 	if (priv->after_suspend) {
 		mcp251x_hw_reset(spi);
-		mcp251x_setup(net, priv, spi);
+		mcp251x_setup(net, spi);
 		if (priv->after_suspend & AFTER_SUSPEND_RESTART) {
 			mcp251x_set_normal_mode(spi);
 		} else if (priv->after_suspend & AFTER_SUSPEND_UP) {
@@ -971,7 +970,7 @@ static int mcp251x_open(struct net_device *net)
 		mcp251x_open_clean(net);
 		goto open_unlock;
 	}
-	ret = mcp251x_setup(net, priv, spi);
+	ret = mcp251x_setup(net, spi);
 	if (ret) {
 		mcp251x_open_clean(net);
 		goto open_unlock;

drivers/net/can/usb/gs_usb.c

@@ -243,7 +243,7 @@ static struct gs_tx_context *gs_get_tx_context(struct gs_can *dev,
 	return NULL;
 }
 
-static int gs_cmd_reset(struct gs_usb *gsusb, struct gs_can *gsdev)
+static int gs_cmd_reset(struct gs_can *gsdev)
 {
 	struct gs_device_mode *dm;
 	struct usb_interface *intf = gsdev->iface;
@@ -709,7 +709,7 @@ static int gs_can_close(struct net_device *netdev)
 	atomic_set(&dev->active_tx_urbs, 0);
 
 	/* reset the device */
-	rc = gs_cmd_reset(parent, dev);
+	rc = gs_cmd_reset(dev);
 	if (rc < 0)
 		netdev_warn(netdev, "Couldn't shutdown device (err=%d)", rc);
 

drivers/net/can/usb/peak_usb/pcan_usb_core.c

@@ -158,7 +158,7 @@ void peak_usb_get_ts_time(struct peak_time_ref *time_ref, u32 ts, ktime_t *time)
  * post received skb after having set any hw timestamp
  */
 int peak_usb_netif_rx(struct sk_buff *skb,
-		      struct peak_time_ref *time_ref, u32 ts_low, u32 ts_high)
+		      struct peak_time_ref *time_ref, u32 ts_low)
 {
 	struct skb_shared_hwtstamps *hwts = skb_hwtstamps(skb);
 

drivers/net/can/usb/peak_usb/pcan_usb_core.h

@@ -153,7 +153,7 @@ void peak_usb_update_ts_now(struct peak_time_ref *time_ref, u32 ts_now);
 void peak_usb_set_ts_now(struct peak_time_ref *time_ref, u32 ts_now);
 void peak_usb_get_ts_time(struct peak_time_ref *time_ref, u32 ts, ktime_t *tv);
 int peak_usb_netif_rx(struct sk_buff *skb,
-		      struct peak_time_ref *time_ref, u32 ts_low, u32 ts_high);
+		      struct peak_time_ref *time_ref, u32 ts_low);
 void peak_usb_async_complete(struct urb *urb);
 void peak_usb_restart_complete(struct peak_usb_device *dev);
 

drivers/net/can/usb/peak_usb/pcan_usb_fd.c

@@ -513,8 +513,7 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if,
 	else
 		memcpy(cfd->data, rm->d, cfd->len);
 
-	peak_usb_netif_rx(skb, &usb_if->time_ref,
-			  le32_to_cpu(rm->ts_low), le32_to_cpu(rm->ts_high));
+	peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(rm->ts_low));
 
 	netdev->stats.rx_packets++;
 	netdev->stats.rx_bytes += cfd->len;
@@ -574,8 +573,7 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if,
 	if (!skb)
 		return -ENOMEM;
 
-	peak_usb_netif_rx(skb, &usb_if->time_ref,
-			  le32_to_cpu(sm->ts_low), le32_to_cpu(sm->ts_high));
+	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;
@@ -617,8 +615,7 @@ static int pcan_usb_fd_decode_overrun(struct pcan_usb_fd_if *usb_if,
 	cf->can_id |= CAN_ERR_CRTL;
 	cf->data[1] |= CAN_ERR_CRTL_RX_OVERFLOW;
 
-	peak_usb_netif_rx(skb, &usb_if->time_ref,
-			  le32_to_cpu(ov->ts_low), le32_to_cpu(ov->ts_high));
+	peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(ov->ts_low));
 
 	netdev->stats.rx_over_errors++;
 	netdev->stats.rx_errors++;

include/net/netns/can.h

@@ -8,7 +8,7 @@
 
 #include <linux/spinlock.h>
 
-struct dev_rcv_lists;
+struct can_dev_rcv_lists;
 struct s_stats;
 struct s_pstats;
 
@@ -28,7 +28,7 @@ struct netns_can {
 #endif
 
 	/* receive filters subscribed for 'all' CAN devices */
-	struct dev_rcv_lists *can_rx_alldev_list;
+	struct can_dev_rcv_lists *can_rx_alldev_list;
 	spinlock_t can_rcvlists_lock;
 	struct timer_list can_stattimer;/* timer for statistics update */
 	struct s_stats *can_stats;	/* packet statistics */

net/can/af_can.c

@@ -321,13 +321,13 @@ EXPORT_SYMBOL(can_send);
  * af_can rx path
  */
 
-static struct dev_rcv_lists *find_dev_rcv_lists(struct net *net,
+static struct can_dev_rcv_lists *find_dev_rcv_lists(struct net *net,
 						struct net_device *dev)
 {
 	if (!dev)
 		return net->can.can_rx_alldev_list;
 	else
-		return (struct dev_rcv_lists *)dev->ml_priv;
+		return (struct can_dev_rcv_lists *)dev->ml_priv;
 }
 
 /**
@@ -381,7 +381,7 @@ static unsigned int effhash(canid_t can_id)
  *  Reduced can_id to have a preprocessed filter compare value.
  */
 static struct hlist_head *find_rcv_list(canid_t *can_id, canid_t *mask,
-					struct dev_rcv_lists *d)
+					struct can_dev_rcv_lists *d)
 {
 	canid_t inv = *can_id & CAN_INV_FILTER; /* save flag before masking */
 
@@ -464,7 +464,7 @@ int can_rx_register(struct net *net, struct net_device *dev, canid_t can_id,
 {
 	struct receiver *r;
 	struct hlist_head *rl;
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 	struct s_pstats *can_pstats = net->can.can_pstats;
 	int err = 0;
 
@@ -542,7 +542,7 @@ void can_rx_unregister(struct net *net, struct net_device *dev, canid_t can_id,
 	struct receiver *r = NULL;
 	struct hlist_head *rl;
 	struct s_pstats *can_pstats = net->can.can_pstats;
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 
 	if (dev && dev->type != ARPHRD_CAN)
 		return;
@@ -615,7 +615,7 @@ static inline void deliver(struct sk_buff *skb, struct receiver *r)
 	r->matches++;
 }
 
-static int can_rcv_filter(struct dev_rcv_lists *d, struct sk_buff *skb)
+static int can_rcv_filter(struct can_dev_rcv_lists *d, struct sk_buff *skb)
 {
 	struct receiver *r;
 	int matches = 0;
@@ -682,7 +682,7 @@ static int can_rcv_filter(struct dev_rcv_lists *d, struct sk_buff *skb)
 
 static void can_receive(struct sk_buff *skb, struct net_device *dev)
 {
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 	struct net *net = dev_net(dev);
 	struct s_stats *can_stats = net->can.can_stats;
 	int matches;
@@ -829,7 +829,7 @@ static int can_notifier(struct notifier_block *nb, unsigned long msg,
 			void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 
 	if (dev->type != ARPHRD_CAN)
 		return NOTIFY_DONE;
@@ -874,7 +874,7 @@ static int can_pernet_init(struct net *net)
 {
 	spin_lock_init(&net->can.can_rcvlists_lock);
 	net->can.can_rx_alldev_list =
-		kzalloc(sizeof(struct dev_rcv_lists), GFP_KERNEL);
+		kzalloc(sizeof(struct can_dev_rcv_lists), GFP_KERNEL);
 	if (!net->can.can_rx_alldev_list)
 		goto out;
 	net->can.can_stats = kzalloc(sizeof(struct s_stats), GFP_KERNEL);
@@ -920,7 +920,7 @@ static void can_pernet_exit(struct net *net)
 	rcu_read_lock();
 	for_each_netdev_rcu(net, dev) {
 		if (dev->type == ARPHRD_CAN && dev->ml_priv) {
-			struct dev_rcv_lists *d = dev->ml_priv;
+			struct can_dev_rcv_lists *d = dev->ml_priv;
 
 			BUG_ON(d->entries);
 			kfree(d);

net/can/af_can.h

@@ -67,7 +67,7 @@ struct receiver {
 enum { RX_ERR, RX_ALL, RX_FIL, RX_INV, RX_MAX };
 
 /* per device receive filters linked at dev->ml_priv */
-struct dev_rcv_lists {
+struct can_dev_rcv_lists {
 	struct hlist_head rx[RX_MAX];
 	struct hlist_head rx_sff[CAN_SFF_RCV_ARRAY_SZ];
 	struct hlist_head rx_eff[CAN_EFF_RCV_ARRAY_SZ];

net/can/proc.c

@@ -338,7 +338,7 @@ static const struct file_operations can_version_proc_fops = {
 
 static inline void can_rcvlist_proc_show_one(struct seq_file *m, int idx,
 					     struct net_device *dev,
-					     struct dev_rcv_lists *d)
+					     struct can_dev_rcv_lists *d)
 {
 	if (!hlist_empty(&d->rx[idx])) {
 		can_print_recv_banner(m);
@@ -353,7 +353,7 @@ static int can_rcvlist_proc_show(struct seq_file *m, void *v)
 	/* double cast to prevent GCC warning */
 	int idx = (int)(long)PDE_DATA(m->file->f_inode);
 	struct net_device *dev;
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 	struct net *net = m->private;
 
 	seq_printf(m, "\nreceive list '%s':\n", rx_list_name[idx]);
@@ -417,7 +417,7 @@ static inline void can_rcvlist_proc_show_array(struct seq_file *m,
 static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v)
 {
 	struct net_device *dev;
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 	struct net *net = m->private;
 
 	/* RX_SFF */
@@ -461,7 +461,7 @@ static const struct file_operations can_rcvlist_sff_proc_fops = {
 static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v)
 {
 	struct net_device *dev;
-	struct dev_rcv_lists *d;
+	struct can_dev_rcv_lists *d;
 	struct net *net = m->private;
 
 	/* RX_EFF */

net/can/raw.c

@@ -401,6 +401,8 @@ static int raw_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 
 	if (len < sizeof(*addr))
 		return -EINVAL;
+	if (addr->can_family != AF_CAN)
+		return -EINVAL;
 
 	lock_sock(sk);