Merge branch '5.15-2.2.x-imx' into toradex_5.15-2.2.x-imxtoradex_5.15-2.2.x-imx

Conflicts:
	drivers/tty/serial/fsl_lpuart.c

Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>

6 files changed, 144 insertions, 100 deletions

diff --git a/net/can/af_can.c b/net/can/af_can.c
index 4e728b3da40b..edf01b73d287 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -288,8 +288,8 @@ int can_send(struct sk_buff *skb, int loop)
 		netif_rx_ni(newskb);
 
 	/* update statistics */
-	pkg_stats->tx_frames++;
-	pkg_stats->tx_frames_delta++;
+	atomic_long_inc(&pkg_stats->tx_frames);
+	atomic_long_inc(&pkg_stats->tx_frames_delta);
 
 	return 0;
 
@@ -649,8 +649,8 @@ static void can_receive(struct sk_buff *skb, struct net_device *dev)
 	int matches;
 
 	/* update statistics */
-	pkg_stats->rx_frames++;
-	pkg_stats->rx_frames_delta++;
+	atomic_long_inc(&pkg_stats->rx_frames);
+	atomic_long_inc(&pkg_stats->rx_frames_delta);
 
 	/* create non-zero unique skb identifier together with *skb */
 	while (!(can_skb_prv(skb)->skbcnt))
@@ -671,8 +671,8 @@ static void can_receive(struct sk_buff *skb, struct net_device *dev)
 	consume_skb(skb);
 
 	if (matches > 0) {
-		pkg_stats->matches++;
-		pkg_stats->matches_delta++;
+		atomic_long_inc(&pkg_stats->matches);
+		atomic_long_inc(&pkg_stats->matches_delta);
 	}
 }
 
diff --git a/net/can/af_can.h b/net/can/af_can.h
index 7c2d9161e224..22f3352c77fe 100644
--- a/net/can/af_can.h
+++ b/net/can/af_can.h
@@ -66,9 +66,9 @@ struct receiver {
 struct can_pkg_stats {
 	unsigned long jiffies_init;
 
-	unsigned long rx_frames;
-	unsigned long tx_frames;
-	unsigned long matches;
+	atomic_long_t rx_frames;
+	atomic_long_t tx_frames;
+	atomic_long_t matches;
 
 	unsigned long total_rx_rate;
 	unsigned long total_tx_rate;
@@ -82,9 +82,9 @@ struct can_pkg_stats {
 	unsigned long max_tx_rate;
 	unsigned long max_rx_match_ratio;
 
-	unsigned long rx_frames_delta;
-	unsigned long tx_frames_delta;
-	unsigned long matches_delta;
+	atomic_long_t rx_frames_delta;
+	atomic_long_t tx_frames_delta;
+	atomic_long_t matches_delta;
 };
 
 /* persistent statistics */
diff --git a/net/can/gw.c b/net/can/gw.c
index d8861e862f15..c48e8cf5e650 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -130,7 +130,7 @@ struct cgw_job {
 	u32 handled_frames;
 	u32 dropped_frames;
 	u32 deleted_frames;
-	struct cf_mod mod;
+	struct cf_mod __rcu *cf_mod;
 	union {
 		/* CAN frame data source */
 		struct net_device *dev;
@@ -459,6 +459,7 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data)
 	struct cgw_job *gwj = (struct cgw_job *)data;
 	struct canfd_frame *cf;
 	struct sk_buff *nskb;
+	struct cf_mod *mod;
 	int modidx = 0;
 
 	/* process strictly Classic CAN or CAN FD frames */
@@ -506,7 +507,8 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data)
 	 * When there is at least one modification function activated,
 	 * we need to copy the skb as we want to modify skb->data.
 	 */
-	if (gwj->mod.modfunc[0])
+	mod = rcu_dereference(gwj->cf_mod);
+	if (mod->modfunc[0])
 		nskb = skb_copy(skb, GFP_ATOMIC);
 	else
 		nskb = skb_clone(skb, GFP_ATOMIC);
@@ -529,8 +531,8 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data)
 	cf = (struct canfd_frame *)nskb->data;
 
 	/* perform preprocessed modification functions if there are any */
-	while (modidx < MAX_MODFUNCTIONS && gwj->mod.modfunc[modidx])
-		(*gwj->mod.modfunc[modidx++])(cf, &gwj->mod);
+	while (modidx < MAX_MODFUNCTIONS && mod->modfunc[modidx])
+		(*mod->modfunc[modidx++])(cf, mod);
 
 	/* Has the CAN frame been modified? */
 	if (modidx) {
@@ -546,11 +548,11 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data)
 		}
 
 		/* check for checksum updates */
-		if (gwj->mod.csumfunc.crc8)
-			(*gwj->mod.csumfunc.crc8)(cf, &gwj->mod.csum.crc8);
+		if (mod->csumfunc.crc8)
+			(*mod->csumfunc.crc8)(cf, &mod->csum.crc8);
 
-		if (gwj->mod.csumfunc.xor)
-			(*gwj->mod.csumfunc.xor)(cf, &gwj->mod.csum.xor);
+		if (mod->csumfunc.xor)
+			(*mod->csumfunc.xor)(cf, &mod->csum.xor);
 	}
 
 	/* clear the skb timestamp if not configured the other way */
@@ -577,6 +579,24 @@ static inline void cgw_unregister_filter(struct net *net, struct cgw_job *gwj)
 			  gwj->ccgw.filter.can_mask, can_can_gw_rcv, gwj);
 }
 
+static void cgw_job_free_rcu(struct rcu_head *rcu_head)
+{
+	struct cgw_job *gwj = container_of(rcu_head, struct cgw_job, rcu);
+
+	/* cgw_job::cf_mod is always accessed from the same cgw_job object within
+	 * the same RCU read section. Once cgw_job is scheduled for removal,
+	 * cf_mod can also be removed without mandating an additional grace period.
+	 */
+	kfree(rcu_access_pointer(gwj->cf_mod));
+	kmem_cache_free(cgw_cache, gwj);
+}
+
+/* Return cgw_job::cf_mod with RTNL protected section */
+static struct cf_mod *cgw_job_cf_mod(struct cgw_job *gwj)
+{
+	return rcu_dereference_protected(gwj->cf_mod, rtnl_is_locked());
+}
+
 static int cgw_notifier(struct notifier_block *nb,
 			unsigned long msg, void *ptr)
 {
@@ -596,8 +616,7 @@ static int cgw_notifier(struct notifier_block *nb,
 			if (gwj->src.dev == dev || gwj->dst.dev == dev) {
 				hlist_del(&gwj->list);
 				cgw_unregister_filter(net, gwj);
-				synchronize_rcu();
-				kmem_cache_free(cgw_cache, gwj);
+				call_rcu(&gwj->rcu, cgw_job_free_rcu);
 			}
 		}
 	}
@@ -610,6 +629,7 @@ static int cgw_put_job(struct sk_buff *skb, struct cgw_job *gwj, int type,
 {
 	struct rtcanmsg *rtcan;
 	struct nlmsghdr *nlh;
+	struct cf_mod *mod;
 
 	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*rtcan), flags);
 	if (!nlh)
@@ -644,82 +664,83 @@ static int cgw_put_job(struct sk_buff *skb, struct cgw_job *gwj, int type,
 			goto cancel;
 	}
 
+	mod = cgw_job_cf_mod(gwj);
 	if (gwj->flags & CGW_FLAGS_CAN_FD) {
 		struct cgw_fdframe_mod mb;
 
-		if (gwj->mod.modtype.and) {
-			memcpy(&mb.cf, &gwj->mod.modframe.and, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.and;
+		if (mod->modtype.and) {
+			memcpy(&mb.cf, &mod->modframe.and, sizeof(mb.cf));
+			mb.modtype = mod->modtype.and;
 			if (nla_put(skb, CGW_FDMOD_AND, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.or) {
-			memcpy(&mb.cf, &gwj->mod.modframe.or, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.or;
+		if (mod->modtype.or) {
+			memcpy(&mb.cf, &mod->modframe.or, sizeof(mb.cf));
+			mb.modtype = mod->modtype.or;
 			if (nla_put(skb, CGW_FDMOD_OR, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.xor) {
-			memcpy(&mb.cf, &gwj->mod.modframe.xor, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.xor;
+		if (mod->modtype.xor) {
+			memcpy(&mb.cf, &mod->modframe.xor, sizeof(mb.cf));
+			mb.modtype = mod->modtype.xor;
 			if (nla_put(skb, CGW_FDMOD_XOR, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.set) {
-			memcpy(&mb.cf, &gwj->mod.modframe.set, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.set;
+		if (mod->modtype.set) {
+			memcpy(&mb.cf, &mod->modframe.set, sizeof(mb.cf));
+			mb.modtype = mod->modtype.set;
 			if (nla_put(skb, CGW_FDMOD_SET, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 	} else {
 		struct cgw_frame_mod mb;
 
-		if (gwj->mod.modtype.and) {
-			memcpy(&mb.cf, &gwj->mod.modframe.and, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.and;
+		if (mod->modtype.and) {
+			memcpy(&mb.cf, &mod->modframe.and, sizeof(mb.cf));
+			mb.modtype = mod->modtype.and;
 			if (nla_put(skb, CGW_MOD_AND, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.or) {
-			memcpy(&mb.cf, &gwj->mod.modframe.or, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.or;
+		if (mod->modtype.or) {
+			memcpy(&mb.cf, &mod->modframe.or, sizeof(mb.cf));
+			mb.modtype = mod->modtype.or;
 			if (nla_put(skb, CGW_MOD_OR, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.xor) {
-			memcpy(&mb.cf, &gwj->mod.modframe.xor, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.xor;
+		if (mod->modtype.xor) {
+			memcpy(&mb.cf, &mod->modframe.xor, sizeof(mb.cf));
+			mb.modtype = mod->modtype.xor;
 			if (nla_put(skb, CGW_MOD_XOR, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 
-		if (gwj->mod.modtype.set) {
-			memcpy(&mb.cf, &gwj->mod.modframe.set, sizeof(mb.cf));
-			mb.modtype = gwj->mod.modtype.set;
+		if (mod->modtype.set) {
+			memcpy(&mb.cf, &mod->modframe.set, sizeof(mb.cf));
+			mb.modtype = mod->modtype.set;
 			if (nla_put(skb, CGW_MOD_SET, sizeof(mb), &mb) < 0)
 				goto cancel;
 		}
 	}
 
-	if (gwj->mod.uid) {
-		if (nla_put_u32(skb, CGW_MOD_UID, gwj->mod.uid) < 0)
+	if (mod->uid) {
+		if (nla_put_u32(skb, CGW_MOD_UID, mod->uid) < 0)
 			goto cancel;
 	}
 
-	if (gwj->mod.csumfunc.crc8) {
+	if (mod->csumfunc.crc8) {
 		if (nla_put(skb, CGW_CS_CRC8, CGW_CS_CRC8_LEN,
-			    &gwj->mod.csum.crc8) < 0)
+			    &mod->csum.crc8) < 0)
 			goto cancel;
 	}
 
-	if (gwj->mod.csumfunc.xor) {
+	if (mod->csumfunc.xor) {
 		if (nla_put(skb, CGW_CS_XOR, CGW_CS_XOR_LEN,
-			    &gwj->mod.csum.xor) < 0)
+			    &mod->csum.xor) < 0)
 			goto cancel;
 	}
 
@@ -1053,7 +1074,7 @@ static int cgw_create_job(struct sk_buff *skb,  struct nlmsghdr *nlh,
 	struct net *net = sock_net(skb->sk);
 	struct rtcanmsg *r;
 	struct cgw_job *gwj;
-	struct cf_mod mod;
+	struct cf_mod *mod;
 	struct can_can_gw ccgw;
 	u8 limhops = 0;
 	int err = 0;
@@ -1072,37 +1093,48 @@ static int cgw_create_job(struct sk_buff *skb,  struct nlmsghdr *nlh,
 	if (r->gwtype != CGW_TYPE_CAN_CAN)
 		return -EINVAL;
 
-	err = cgw_parse_attr(nlh, &mod, CGW_TYPE_CAN_CAN, &ccgw, &limhops);
+	mod = kmalloc(sizeof(*mod), GFP_KERNEL);
+	if (!mod)
+		return -ENOMEM;
+
+	err = cgw_parse_attr(nlh, mod, CGW_TYPE_CAN_CAN, &ccgw, &limhops);
 	if (err < 0)
-		return err;
+		goto out_free_cf;
 
-	if (mod.uid) {
+	if (mod->uid) {
 		ASSERT_RTNL();
 
 		/* check for updating an existing job with identical uid */
 		hlist_for_each_entry(gwj, &net->can.cgw_list, list) {
-			if (gwj->mod.uid != mod.uid)
+			struct cf_mod *old_cf;
+
+			old_cf = cgw_job_cf_mod(gwj);
+			if (old_cf->uid != mod->uid)
 				continue;
 
 			/* interfaces & filters must be identical */
-			if (memcmp(&gwj->ccgw, &ccgw, sizeof(ccgw)))
-				return -EINVAL;
+			if (memcmp(&gwj->ccgw, &ccgw, sizeof(ccgw))) {
+				err = -EINVAL;
+				goto out_free_cf;
+			}
 
-			/* update modifications with disabled softirq & quit */
-			local_bh_disable();
-			memcpy(&gwj->mod, &mod, sizeof(mod));
-			local_bh_enable();
+			rcu_assign_pointer(gwj->cf_mod, mod);
+			kfree_rcu_mightsleep(old_cf);
 			return 0;
 		}
 	}
 
 	/* ifindex == 0 is not allowed for job creation */
-	if (!ccgw.src_idx || !ccgw.dst_idx)
-		return -ENODEV;
+	if (!ccgw.src_idx || !ccgw.dst_idx) {
+		err = -ENODEV;
+		goto out_free_cf;
+	}
 
 	gwj = kmem_cache_alloc(cgw_cache, GFP_KERNEL);
-	if (!gwj)
-		return -ENOMEM;
+	if (!gwj) {
+		err = -ENOMEM;
+		goto out_free_cf;
+	}
 
 	gwj->handled_frames = 0;
 	gwj->dropped_frames = 0;
@@ -1112,7 +1144,7 @@ static int cgw_create_job(struct sk_buff *skb,  struct nlmsghdr *nlh,
 	gwj->limit_hops = limhops;
 
 	/* insert already parsed information */
-	memcpy(&gwj->mod, &mod, sizeof(mod));
+	RCU_INIT_POINTER(gwj->cf_mod, mod);
 	memcpy(&gwj->ccgw, &ccgw, sizeof(ccgw));
 
 	err = -ENODEV;
@@ -1139,9 +1171,11 @@ static int cgw_create_job(struct sk_buff *skb,  struct nlmsghdr *nlh,
 	if (!err)
 		hlist_add_head_rcu(&gwj->list, &net->can.cgw_list);
 out:
-	if (err)
+	if (err) {
 		kmem_cache_free(cgw_cache, gwj);
-
+out_free_cf:
+		kfree(mod);
+	}
 	return err;
 }
 
@@ -1155,8 +1189,7 @@ static void cgw_remove_all_jobs(struct net *net)
 	hlist_for_each_entry_safe(gwj, nx, &net->can.cgw_list, list) {
 		hlist_del(&gwj->list);
 		cgw_unregister_filter(net, gwj);
-		synchronize_rcu();
-		kmem_cache_free(cgw_cache, gwj);
+		call_rcu(&gwj->rcu, cgw_job_free_rcu);
 	}
 }
 
@@ -1202,19 +1235,22 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	/* remove only the first matching entry */
 	hlist_for_each_entry_safe(gwj, nx, &net->can.cgw_list, list) {
+		struct cf_mod *cf_mod;
+
 		if (gwj->flags != r->flags)
 			continue;
 
 		if (gwj->limit_hops != limhops)
 			continue;
 
+		cf_mod = cgw_job_cf_mod(gwj);
 		/* we have a match when uid is enabled and identical */
-		if (gwj->mod.uid || mod.uid) {
-			if (gwj->mod.uid != mod.uid)
+		if (cf_mod->uid || mod.uid) {
+			if (cf_mod->uid != mod.uid)
 				continue;
 		} else {
 			/* no uid => check for identical modifications */
-			if (memcmp(&gwj->mod, &mod, sizeof(mod)))
+			if (memcmp(cf_mod, &mod, sizeof(mod)))
 				continue;
 		}
 
@@ -1224,8 +1260,7 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 		hlist_del(&gwj->list);
 		cgw_unregister_filter(net, gwj);
-		synchronize_rcu();
-		kmem_cache_free(cgw_cache, gwj);
+		call_rcu(&gwj->rcu, cgw_job_free_rcu);
 		err = 0;
 		break;
 	}
diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c
index da538c29c749..d8ba84828f23 100644
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -1130,7 +1130,7 @@ static int j1939_sk_send_loop(struct j1939_priv *priv,  struct sock *sk,
 
 	todo_size = size;
 
-	while (todo_size) {
+	do {
 		struct j1939_sk_buff_cb *skcb;
 
 		segment_size = min_t(size_t, J1939_MAX_TP_PACKET_SIZE,
@@ -1175,7 +1175,7 @@ static int j1939_sk_send_loop(struct j1939_priv *priv,  struct sock *sk,
 
 		todo_size -= segment_size;
 		session->total_queued_size += segment_size;
-	}
+	} while (todo_size);
 
 	switch (ret) {
 	case 0: /* OK */
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index a58f6f5dfcf8..76d625c668e0 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -382,8 +382,9 @@ sk_buff *j1939_session_skb_get_by_offset(struct j1939_session *session,
 	skb_queue_walk(&session->skb_queue, do_skb) {
 		do_skcb = j1939_skb_to_cb(do_skb);
 
-		if (offset_start >= do_skcb->offset &&
-		    offset_start < (do_skcb->offset + do_skb->len)) {
+		if ((offset_start >= do_skcb->offset &&
+		     offset_start < (do_skcb->offset + do_skb->len)) ||
+		     (offset_start == 0 && do_skcb->offset == 0 && do_skb->len == 0)) {
 			skb = do_skb;
 		}
 	}
diff --git a/net/can/proc.c b/net/can/proc.c
index b3099f0a3cb8..0533a3c4ff0e 100644
--- a/net/can/proc.c
+++ b/net/can/proc.c
@@ -118,6 +118,13 @@ void can_stat_update(struct timer_list *t)
 	struct can_pkg_stats *pkg_stats = net->can.pkg_stats;
 	unsigned long j = jiffies; /* snapshot */
 
+	long rx_frames = atomic_long_read(&pkg_stats->rx_frames);
+	long tx_frames = atomic_long_read(&pkg_stats->tx_frames);
+	long matches = atomic_long_read(&pkg_stats->matches);
+	long rx_frames_delta = atomic_long_read(&pkg_stats->rx_frames_delta);
+	long tx_frames_delta = atomic_long_read(&pkg_stats->tx_frames_delta);
+	long matches_delta = atomic_long_read(&pkg_stats->matches_delta);
+
 	/* restart counting in timer context on user request */
 	if (user_reset)
 		can_init_stats(net);
@@ -127,35 +134,33 @@ void can_stat_update(struct timer_list *t)
 		can_init_stats(net);
 
 	/* prevent overflow in calc_rate() */
-	if (pkg_stats->rx_frames > (ULONG_MAX / HZ))
+	if (rx_frames > (LONG_MAX / HZ))
 		can_init_stats(net);
 
 	/* prevent overflow in calc_rate() */
-	if (pkg_stats->tx_frames > (ULONG_MAX / HZ))
+	if (tx_frames > (LONG_MAX / HZ))
 		can_init_stats(net);
 
 	/* matches overflow - very improbable */
-	if (pkg_stats->matches > (ULONG_MAX / 100))
+	if (matches > (LONG_MAX / 100))
 		can_init_stats(net);
 
 	/* calc total values */
-	if (pkg_stats->rx_frames)
-		pkg_stats->total_rx_match_ratio = (pkg_stats->matches * 100) /
-			pkg_stats->rx_frames;
+	if (rx_frames)
+		pkg_stats->total_rx_match_ratio = (matches * 100) / rx_frames;
 
 	pkg_stats->total_tx_rate = calc_rate(pkg_stats->jiffies_init, j,
-					    pkg_stats->tx_frames);
+					    tx_frames);
 	pkg_stats->total_rx_rate = calc_rate(pkg_stats->jiffies_init, j,
-					    pkg_stats->rx_frames);
+					    rx_frames);
 
 	/* calc current values */
-	if (pkg_stats->rx_frames_delta)
+	if (rx_frames_delta)
 		pkg_stats->current_rx_match_ratio =
-			(pkg_stats->matches_delta * 100) /
-			pkg_stats->rx_frames_delta;
+			(matches_delta * 100) /	rx_frames_delta;
 
-	pkg_stats->current_tx_rate = calc_rate(0, HZ, pkg_stats->tx_frames_delta);
-	pkg_stats->current_rx_rate = calc_rate(0, HZ, pkg_stats->rx_frames_delta);
+	pkg_stats->current_tx_rate = calc_rate(0, HZ, tx_frames_delta);
+	pkg_stats->current_rx_rate = calc_rate(0, HZ, rx_frames_delta);
 
 	/* check / update maximum values */
 	if (pkg_stats->max_tx_rate < pkg_stats->current_tx_rate)
@@ -168,9 +173,9 @@ void can_stat_update(struct timer_list *t)
 		pkg_stats->max_rx_match_ratio = pkg_stats->current_rx_match_ratio;
 
 	/* clear values for 'current rate' calculation */
-	pkg_stats->tx_frames_delta = 0;
-	pkg_stats->rx_frames_delta = 0;
-	pkg_stats->matches_delta   = 0;
+	atomic_long_set(&pkg_stats->tx_frames_delta, 0);
+	atomic_long_set(&pkg_stats->rx_frames_delta, 0);
+	atomic_long_set(&pkg_stats->matches_delta, 0);
 
 	/* restart timer (one second) */
 	mod_timer(&net->can.stattimer, round_jiffies(jiffies + HZ));
@@ -214,9 +219,12 @@ static int can_stats_proc_show(struct seq_file *m, void *v)
 	struct can_rcv_lists_stats *rcv_lists_stats = net->can.rcv_lists_stats;
 
 	seq_putc(m, '\n');
-	seq_printf(m, " %8ld transmitted frames (TXF)\n", pkg_stats->tx_frames);
-	seq_printf(m, " %8ld received frames (RXF)\n", pkg_stats->rx_frames);
-	seq_printf(m, " %8ld matched frames (RXMF)\n", pkg_stats->matches);
+	seq_printf(m, " %8ld transmitted frames (TXF)\n",
+		   atomic_long_read(&pkg_stats->tx_frames));
+	seq_printf(m, " %8ld received frames (RXF)\n",
+		   atomic_long_read(&pkg_stats->rx_frames));
+	seq_printf(m, " %8ld matched frames (RXMF)\n",
+		   atomic_long_read(&pkg_stats->matches));
 
 	seq_putc(m, '\n');