kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 149 deletions

diff --git a/target/linux/generic/pending-5.4/680-NET-skip-GRO-for-foreign-MAC-addresses.patch b/target/linux/generic/pending-5.4/680-NET-skip-GRO-for-foreign-MAC-addresses.patch
deleted file mode 100644
index 9795a99bb5..0000000000
--- a/target/linux/generic/pending-5.4/680-NET-skip-GRO-for-foreign-MAC-addresses.patch
+++ /dev/null
@@ -1,149 +0,0 @@
-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
-@@ -1927,6 +1927,8 @@ 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
-@@ -824,6 +824,7 @@ struct sk_buff {
- #ifdef CONFIG_TLS_DEVICE
- 	__u8			decrypted: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
-@@ -5541,6 +5541,9 @@ static enum gro_result dev_gro_receive(s
- 	int same_flow;
- 	int grow;
- 
-+	if (skb->gro_skip)
-+		goto normal;
-+
- 	if (netif_elide_gro(skb->dev))
- 		goto normal;
- 
-@@ -7484,6 +7487,48 @@ 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,
-@@ -7534,6 +7579,7 @@ static int __netdev_upper_dev_link(struc
- 	if (ret)
- 		return ret;
- 
-+	netdev_update_addr_mask(dev);
- 	ret = call_netdevice_notifiers_info(NETDEV_CHANGEUPPER,
- 					    &changeupper_info.info);
- 	ret = notifier_to_errno(ret);
-@@ -7627,6 +7673,7 @@ 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,
- 				      &changeupper_info.info);
- 
-@@ -8357,6 +8404,7 @@ 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
-@@ -143,6 +143,18 @@ u32 eth_get_headlen(const struct net_dev
- }
- 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
-@@ -174,6 +186,10 @@ __be16 eth_type_trans(struct sk_buff *sk
- 		} else {
- 			skb->pkt_type = PACKET_OTHERHOST;
- 		}
-+
-+		if (eth_check_local_mask(eth->h_dest, dev->dev_addr,
-+					 dev->local_addr_mask))
-+			skb->gro_skip = 1;
- 	}
- 
- 	/*