Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 31 insertions, 37 deletions

diff --git a/net/appletalk/Kconfig b/net/appletalk/Kconfig
new file mode 100644
index 0000000000..041141abf9
--- /dev/null
+++ b/net/appletalk/Kconfig
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Appletalk configuration
+#
+config ATALK
+	tristate "Appletalk protocol support"
+	select LLC
+	help
+	  AppleTalk is the protocol that Apple computers can use to communicate
+	  on a network.  If your Linux box is connected to such a network and you
+	  wish to connect to it, say Y.  You will need to use the netatalk package
+	  so that your Linux box can act as a print and file server for Macs as
+	  well as access AppleTalk printers.  Check out
+	  <http://www.zettabyte.net/netatalk/> on the WWW for details.
+	  EtherTalk is the name used for AppleTalk over Ethernet and the
+	  cheaper and slower LocalTalk is AppleTalk over a proprietary Apple
+	  network using serial links.  EtherTalk and LocalTalk are fully
+	  supported by Linux.
+
+	  General information about how to connect Linux, Windows machines and
+	  Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.  The
+	  NET3-4-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>, contains valuable
+	  information as well.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called appletalk. You almost certainly want to compile it as a
+	  module so you can restart your AppleTalk stack without rebooting
+	  your machine. I hear that the GNU boycott of Apple is over, so
+	  even politically correct people are allowed to say Y here.
diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c
index c7236daa24..9fa0b24690 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -664,7 +664,7 @@ out_unlock:
 
 sendit:
 	if (skb->sk)
-		skb->priority = skb->sk->sk_priority;
+		skb->priority = READ_ONCE(skb->sk->sk_priority);
 	if (dev_queue_xmit(skb))
 		goto drop;
 sent:
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index b070a89912..a852ec093f 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1284,39 +1284,6 @@ out:
 	return err;
 }
 
-#if IS_ENABLED(CONFIG_IPDDP)
-static __inline__ int is_ip_over_ddp(struct sk_buff *skb)
-{
-	return skb->data[12] == 22;
-}
-
-static int handle_ip_over_ddp(struct sk_buff *skb)
-{
-	struct net_device *dev = __dev_get_by_name(&init_net, "ipddp0");
-	struct net_device_stats *stats;
-
-	/* This needs to be able to handle ipddp"N" devices */
-	if (!dev) {
-		kfree_skb(skb);
-		return NET_RX_DROP;
-	}
-
-	skb->protocol = htons(ETH_P_IP);
-	skb_pull(skb, 13);
-	skb->dev   = dev;
-	skb_reset_transport_header(skb);
-
-	stats = netdev_priv(dev);
-	stats->rx_packets++;
-	stats->rx_bytes += skb->len + 13;
-	return netif_rx(skb);  /* Send the SKB up to a higher place. */
-}
-#else
-/* make it easy for gcc to optimize this test out, i.e. kill the code */
-#define is_ip_over_ddp(skb) 0
-#define handle_ip_over_ddp(skb) 0
-#endif
-
 static int atalk_route_packet(struct sk_buff *skb, struct net_device *dev,
 			      struct ddpehdr *ddp, __u16 len_hops, int origlen)
 {
@@ -1480,9 +1447,6 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
 		return atalk_route_packet(skb, dev, ddp, len_hops, origlen);
 	}
 
-	/* if IP over DDP is not selected this code will be optimized out */
-	if (is_ip_over_ddp(skb))
-		return handle_ip_over_ddp(skb);
 	/*
 	 * Which socket - atalk_search_socket() looks for a *full match*
 	 * of the <net, node, port> tuple.