--- zzzz-none-000/linux-3.10.107/net/can/proc.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/net/can/proc.c	2021-02-04 17:41:59.000000000 +0000
@@ -80,7 +80,6 @@
 	[RX_ALL] = "rx_all",
 	[RX_FIL] = "rx_fil",
 	[RX_INV] = "rx_inv",
-	[RX_EFF] = "rx_eff",
 };
 
 /*
@@ -389,25 +388,26 @@
 	.release	= single_release,
 };
 
-static inline void can_rcvlist_sff_proc_show_one(struct seq_file *m,
-						 struct net_device *dev,
-						 struct dev_rcv_lists *d)
+static inline void can_rcvlist_proc_show_array(struct seq_file *m,
+					       struct net_device *dev,
+					       struct hlist_head *rcv_array,
+					       unsigned int rcv_array_sz)
 {
-	int i;
+	unsigned int i;
 	int all_empty = 1;
 
 	/* check whether at least one list is non-empty */
-	for (i = 0; i < 0x800; i++)
-		if (!hlist_empty(&d->rx_sff[i])) {
+	for (i = 0; i < rcv_array_sz; i++)
+		if (!hlist_empty(&rcv_array[i])) {
 			all_empty = 0;
 			break;
 		}
 
 	if (!all_empty) {
 		can_print_recv_banner(m);
-		for (i = 0; i < 0x800; i++) {
-			if (!hlist_empty(&d->rx_sff[i]))
-				can_print_rcvlist(m, &d->rx_sff[i], dev);
+		for (i = 0; i < rcv_array_sz; i++) {
+			if (!hlist_empty(&rcv_array[i]))
+				can_print_rcvlist(m, &rcv_array[i], dev);
 		}
 	} else
 		seq_printf(m, "  (%s: no entry)\n", DNAME(dev));
@@ -425,12 +425,15 @@
 
 	/* sff receive list for 'all' CAN devices (dev == NULL) */
 	d = &can_rx_alldev_list;
-	can_rcvlist_sff_proc_show_one(m, NULL, d);
+	can_rcvlist_proc_show_array(m, NULL, d->rx_sff, ARRAY_SIZE(d->rx_sff));
 
 	/* sff receive list for registered CAN devices */
 	for_each_netdev_rcu(&init_net, dev) {
-		if (dev->type == ARPHRD_CAN && dev->ml_priv)
-			can_rcvlist_sff_proc_show_one(m, dev, dev->ml_priv);
+		if (dev->type == ARPHRD_CAN && dev->ml_priv) {
+			d = dev->ml_priv;
+			can_rcvlist_proc_show_array(m, dev, d->rx_sff,
+						    ARRAY_SIZE(d->rx_sff));
+		}
 	}
 
 	rcu_read_unlock();
@@ -452,6 +455,49 @@
 	.release	= single_release,
 };
 
+
+static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v)
+{
+	struct net_device *dev;
+	struct dev_rcv_lists *d;
+
+	/* RX_EFF */
+	seq_puts(m, "\nreceive list 'rx_eff':\n");
+
+	rcu_read_lock();
+
+	/* eff receive list for 'all' CAN devices (dev == NULL) */
+	d = &can_rx_alldev_list;
+	can_rcvlist_proc_show_array(m, NULL, d->rx_eff, ARRAY_SIZE(d->rx_eff));
+
+	/* eff receive list for registered CAN devices */
+	for_each_netdev_rcu(&init_net, dev) {
+		if (dev->type == ARPHRD_CAN && dev->ml_priv) {
+			d = dev->ml_priv;
+			can_rcvlist_proc_show_array(m, dev, d->rx_eff,
+						    ARRAY_SIZE(d->rx_eff));
+		}
+	}
+
+	rcu_read_unlock();
+
+	seq_putc(m, '\n');
+	return 0;
+}
+
+static int can_rcvlist_eff_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, can_rcvlist_eff_proc_show, NULL);
+}
+
+static const struct file_operations can_rcvlist_eff_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= can_rcvlist_eff_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*
  * proc utility functions
  */
@@ -491,8 +537,8 @@
 					   &can_rcvlist_proc_fops, (void *)RX_FIL);
 	pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, can_dir,
 					   &can_rcvlist_proc_fops, (void *)RX_INV);
-	pde_rcvlist_eff = proc_create_data(CAN_PROC_RCVLIST_EFF, 0644, can_dir,
-					   &can_rcvlist_proc_fops, (void *)RX_EFF);
+	pde_rcvlist_eff = proc_create(CAN_PROC_RCVLIST_EFF, 0644, can_dir,
+				      &can_rcvlist_eff_proc_fops);
 	pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, can_dir,
 				      &can_rcvlist_sff_proc_fops);
 }