kernel: Copy patches from kernel 4.14 to 4.19

This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 152 insertions, 0 deletions

diff --git a/target/linux/generic/pending-4.19/680-NET-skip-GRO-for-foreign-MAC-addresses.patch b/target/linux/generic/pending-4.19/680-NET-skip-GRO-for-foreign-MAC-addresses.patch
new file mode 100644
index 0000000000..236a7833d2
--- /dev/null
+++ b/target/linux/generic/pending-4.19/680-NET-skip-GRO-for-foreign-MAC-addresses.patch
@@ -0,0 +1,152 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: net: replace GRO optimization patch with a new one that supports VLANs/bridges with different MAC addresses
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ include/linux/netdevice.h |  2 ++
+ include/linux/skbuff.h    |  3 ++-
+ net/core/dev.c            | 48 +++++++++++++++++++++++++++++++++++++++++++++++
+ net/ethernet/eth.c        | 18 +++++++++++++++++-
+ 4 files changed, 69 insertions(+), 2 deletions(-)
+
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1763,6 +1763,8 @@ struct net_device {
+ 	struct netdev_hw_addr_list	mc;
+ 	struct netdev_hw_addr_list	dev_addrs;
+ 
++	unsigned char		local_addr_mask[MAX_ADDR_LEN];
++
+ #ifdef CONFIG_SYSFS
+ 	struct kset		*queues_kset;
+ #endif
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -782,6 +782,7 @@ struct sk_buff {
+ 	__u8			tc_redirected:1;
+ 	__u8			tc_from_ingress:1;
+ #endif
++	__u8			gro_skip:1;
+ 
+ #ifdef CONFIG_NET_SCHED
+ 	__u16			tc_index;	/* traffic control index */
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -4805,6 +4805,9 @@ static enum gro_result dev_gro_receive(s
+ 	enum gro_result ret;
+ 	int grow;
+ 
++	if (skb->gro_skip)
++		goto normal;
++
+ 	if (netif_elide_gro(skb->dev))
+ 		goto normal;
+ 
+@@ -6279,6 +6282,48 @@ static void __netdev_adjacent_dev_unlink
+ 					   &upper_dev->adj_list.lower);
+ }
+ 
++static void __netdev_addr_mask(unsigned char *mask, const unsigned char *addr,
++			       struct net_device *dev)
++{
++	int i;
++
++	for (i = 0; i < dev->addr_len; i++)
++		mask[i] |= addr[i] ^ dev->dev_addr[i];
++}
++
++static void __netdev_upper_mask(unsigned char *mask, struct net_device *dev,
++				struct net_device *lower)
++{
++	struct net_device *cur;
++	struct list_head *iter;
++
++	netdev_for_each_upper_dev_rcu(dev, cur, iter) {
++		__netdev_addr_mask(mask, cur->dev_addr, lower);
++		__netdev_upper_mask(mask, cur, lower);
++	}
++}
++
++static void __netdev_update_addr_mask(struct net_device *dev)
++{
++	unsigned char mask[MAX_ADDR_LEN];
++	struct net_device *cur;
++	struct list_head *iter;
++
++	memset(mask, 0, sizeof(mask));
++	__netdev_upper_mask(mask, dev, dev);
++	memcpy(dev->local_addr_mask, mask, dev->addr_len);
++
++	netdev_for_each_lower_dev(dev, cur, iter)
++		__netdev_update_addr_mask(cur);
++}
++
++static void netdev_update_addr_mask(struct net_device *dev)
++{
++	rcu_read_lock();
++	__netdev_update_addr_mask(dev);
++	rcu_read_unlock();
++}
++
+ static int __netdev_upper_dev_link(struct net_device *dev,
+ 				   struct net_device *upper_dev, bool master,
+ 				   void *upper_priv, void *upper_info)
+@@ -6317,6 +6362,7 @@ static int __netdev_upper_dev_link(struc
+ 	if (ret)
+ 		return ret;
+ 
++	netdev_update_addr_mask(dev);
+ 	ret = call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ 					    &changeupper_info.info);
+ 	ret = notifier_to_errno(ret);
+@@ -6394,6 +6440,7 @@ void netdev_upper_dev_unlink(struct net_
+ 
+ 	__netdev_adjacent_dev_unlink_neighbour(dev, upper_dev);
+ 
++	netdev_update_addr_mask(dev);
+ 	call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ 				      &changeupper_info.info);
+ }
+@@ -6966,6 +7013,7 @@ int dev_set_mac_address(struct net_devic
+ 	if (err)
+ 		return err;
+ 	dev->addr_assign_type = NET_ADDR_SET;
++	netdev_update_addr_mask(dev);
+ 	call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+ 	add_device_randomness(dev->dev_addr, dev->addr_len);
+ 	return 0;
+--- a/net/ethernet/eth.c
++++ b/net/ethernet/eth.c
+@@ -144,6 +144,18 @@ u32 eth_get_headlen(void *data, unsigned
+ }
+ EXPORT_SYMBOL(eth_get_headlen);
+ 
++static inline bool
++eth_check_local_mask(const void *addr1, const void *addr2, const void *mask)
++{
++	const u16 *a1 = addr1;
++	const u16 *a2 = addr2;
++	const u16 *m = mask;
++
++	return (((a1[0] ^ a2[0]) & ~m[0]) |
++		((a1[1] ^ a2[1]) & ~m[1]) |
++		((a1[2] ^ a2[2]) & ~m[2]));
++}
++
+ /**
+  * eth_type_trans - determine the packet's protocol ID.
+  * @skb: received socket data
+@@ -172,8 +184,12 @@ __be16 eth_type_trans(struct sk_buff *sk
+ 			skb->pkt_type = PACKET_MULTICAST;
+ 	}
+ 	else if (unlikely(!ether_addr_equal_64bits(eth->h_dest,
+-						   dev->dev_addr)))
++						   dev->dev_addr))) {
+ 		skb->pkt_type = PACKET_OTHERHOST;
++		if (eth_check_local_mask(eth->h_dest, dev->dev_addr,
++					 dev->local_addr_mask))
++			skb->gro_skip = 1;
++	}
+ 
+ 	/*
+ 	 * Some variants of DSA tagging don't have an ethertype field