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, 177 deletions

diff --git a/target/linux/generic/pending-5.4/710-bridge-add-knob-for-filtering-rx-tx-BPDU-pack.patch b/target/linux/generic/pending-5.4/710-bridge-add-knob-for-filtering-rx-tx-BPDU-pack.patch
deleted file mode 100644
index 90e0d0de83..0000000000
--- a/target/linux/generic/pending-5.4/710-bridge-add-knob-for-filtering-rx-tx-BPDU-pack.patch
+++ /dev/null
@@ -1,177 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Fri, 27 Aug 2021 12:22:32 +0200
-Subject: [PATCH] bridge: add knob for filtering rx/tx BPDU packets on a port
-
-Some devices (e.g. wireless APs) can't have devices behind them be part of
-a bridge topology with redundant links, due to address limitations.
-Additionally, broadcast traffic on these devices is somewhat expensive, due to
-the low data rate and wakeups of clients in powersave mode.
-This knob can be used to ensure that BPDU packets are never sentor forwarded
-to/from these devices
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/include/linux/if_bridge.h
-+++ b/include/linux/if_bridge.h
-@@ -47,6 +47,7 @@ struct br_ip_list {
- #define BR_BCAST_FLOOD		BIT(14)
- #define BR_NEIGH_SUPPRESS	BIT(15)
- #define BR_ISOLATED		BIT(16)
-+#define BR_BPDU_FILTER		BIT(17)
- 
- #define BR_DEFAULT_AGEING_TIME	(300 * HZ)
- 
---- a/net/bridge/br_forward.c
-+++ b/net/bridge/br_forward.c
-@@ -191,6 +191,7 @@ out:
- void br_flood(struct net_bridge *br, struct sk_buff *skb,
- 	      enum br_pkt_type pkt_type, bool local_rcv, bool local_orig)
- {
-+	const unsigned char *dest = eth_hdr(skb)->h_dest;
- 	struct net_bridge_port *prev = NULL;
- 	struct net_bridge_port *p;
- 
-@@ -206,6 +207,10 @@ void br_flood(struct net_bridge *br, str
- 		case BR_PKT_MULTICAST:
- 			if (!(p->flags & BR_MCAST_FLOOD) && skb->dev != br->dev)
- 				continue;
-+			if ((p->flags & BR_BPDU_FILTER) &&
-+			    unlikely(is_link_local_ether_addr(dest) &&
-+				     dest[5] == 0))
-+				continue;
- 			break;
- 		case BR_PKT_BROADCAST:
- 			if (!(p->flags & BR_BCAST_FLOOD) && skb->dev != br->dev)
---- a/net/bridge/br_input.c
-+++ b/net/bridge/br_input.c
-@@ -300,6 +300,8 @@ rx_handler_result_t br_handle_frame(stru
- 		fwd_mask |= p->group_fwd_mask;
- 		switch (dest[5]) {
- 		case 0x00:	/* Bridge Group Address */
-+			if (p->flags & BR_BPDU_FILTER)
-+				goto drop;
- 			/* If STP is turned off,
- 			   then must forward to keep loop detection */
- 			if (p->br->stp_enabled == BR_NO_STP ||
---- a/net/bridge/br_sysfs_if.c
-+++ b/net/bridge/br_sysfs_if.c
-@@ -233,6 +233,7 @@ BRPORT_ATTR_FLAG(multicast_flood, BR_MCA
- BRPORT_ATTR_FLAG(broadcast_flood, BR_BCAST_FLOOD);
- BRPORT_ATTR_FLAG(neigh_suppress, BR_NEIGH_SUPPRESS);
- BRPORT_ATTR_FLAG(isolated, BR_ISOLATED);
-+BRPORT_ATTR_FLAG(bpdu_filter, BR_BPDU_FILTER);
- 
- #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
-@@ -285,6 +286,7 @@ static const struct brport_attribute *br
- 	&brport_attr_group_fwd_mask,
- 	&brport_attr_neigh_suppress,
- 	&brport_attr_isolated,
-+	&brport_attr_bpdu_filter,
- 	&brport_attr_backup_port,
- 	NULL
- };
---- a/net/bridge/br_stp_bpdu.c
-+++ b/net/bridge/br_stp_bpdu.c
-@@ -80,7 +80,8 @@ void br_send_config_bpdu(struct net_brid
- {
- 	unsigned char buf[35];
- 
--	if (p->br->stp_enabled != BR_KERNEL_STP)
-+	if (p->br->stp_enabled != BR_KERNEL_STP ||
-+	    (p->flags & BR_BPDU_FILTER))
- 		return;
- 
- 	buf[0] = 0;
-@@ -125,7 +126,8 @@ void br_send_tcn_bpdu(struct net_bridge_
- {
- 	unsigned char buf[4];
- 
--	if (p->br->stp_enabled != BR_KERNEL_STP)
-+	if (p->br->stp_enabled != BR_KERNEL_STP ||
-+	    (p->flags & BR_BPDU_FILTER))
- 		return;
- 
- 	buf[0] = 0;
-@@ -168,6 +170,9 @@ void br_stp_rcv(const struct stp_proto *
- 	if (!(br->dev->flags & IFF_UP))
- 		goto out;
- 
-+	if (p->flags & BR_BPDU_FILTER)
-+		goto out;
-+
- 	if (p->state == BR_STATE_DISABLED)
- 		goto out;
- 
---- a/include/uapi/linux/if_link.h
-+++ b/include/uapi/linux/if_link.h
-@@ -340,6 +340,7 @@ enum {
- 	IFLA_BRPORT_NEIGH_SUPPRESS,
- 	IFLA_BRPORT_ISOLATED,
- 	IFLA_BRPORT_BACKUP_PORT,
-+	IFLA_BRPORT_BPDU_FILTER,
- 	__IFLA_BRPORT_MAX
- };
- #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
---- a/net/bridge/br_netlink.c
-+++ b/net/bridge/br_netlink.c
-@@ -137,6 +137,7 @@ static inline size_t br_port_info_size(v
- 		+ nla_total_size(1)	/* IFLA_BRPORT_VLAN_TUNNEL */
- 		+ nla_total_size(1)	/* IFLA_BRPORT_NEIGH_SUPPRESS */
- 		+ nla_total_size(1)	/* IFLA_BRPORT_ISOLATED */
-+		+ nla_total_size(1)	/* IFLA_BRPORT_BPDU_FILTER */
- 		+ nla_total_size(sizeof(struct ifla_bridge_id))	/* IFLA_BRPORT_ROOT_ID */
- 		+ nla_total_size(sizeof(struct ifla_bridge_id))	/* IFLA_BRPORT_BRIDGE_ID */
- 		+ nla_total_size(sizeof(u16))	/* IFLA_BRPORT_DESIGNATED_PORT */
-@@ -214,7 +215,8 @@ static int br_port_fill_attrs(struct sk_
- 	    nla_put_u16(skb, IFLA_BRPORT_GROUP_FWD_MASK, p->group_fwd_mask) ||
- 	    nla_put_u8(skb, IFLA_BRPORT_NEIGH_SUPPRESS,
- 		       !!(p->flags & BR_NEIGH_SUPPRESS)) ||
--	    nla_put_u8(skb, IFLA_BRPORT_ISOLATED, !!(p->flags & BR_ISOLATED)))
-+	    nla_put_u8(skb, IFLA_BRPORT_ISOLATED, !!(p->flags & BR_ISOLATED)) ||
-+	    nla_put_u8(skb, IFLA_BRPORT_BPDU_FILTER, !!(p->flags & BR_BPDU_FILTER)))
- 		return -EMSGSIZE;
- 
- 	timerval = br_timer_value(&p->message_age_timer);
-@@ -676,6 +678,7 @@ static const struct nla_policy br_port_p
- 	[IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 },
- 	[IFLA_BRPORT_ISOLATED]	= { .type = NLA_U8 },
- 	[IFLA_BRPORT_BACKUP_PORT] = { .type = NLA_U32 },
-+	[IFLA_BRPORT_BPDU_FILTER] = { .type = NLA_U8 },
- };
- 
- /* Change the state of the port and notify spanning tree */
-@@ -774,6 +777,10 @@ static int br_setport(struct net_bridge_
- 	if (err)
- 		return err;
- 
-+	err = br_set_port_flag(p, tb, IFLA_BRPORT_BPDU_FILTER, BR_BPDU_FILTER);
-+	if (err)
-+		return err;
-+
- 	br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
- 	err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
- 	if (err)
---- a/net/core/rtnetlink.c
-+++ b/net/core/rtnetlink.c
-@@ -55,7 +55,7 @@
- #include <net/net_namespace.h>
- 
- #define RTNL_MAX_TYPE		50
--#define RTNL_SLAVE_MAX_TYPE	36
-+#define RTNL_SLAVE_MAX_TYPE	37
- 
- struct rtnl_link {
- 	rtnl_doit_func		doit;
-@@ -4373,7 +4373,9 @@ int ndo_dflt_bridge_getlink(struct sk_bu
- 	    brport_nla_put_flag(skb, flags, mask,
- 				IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD) ||
- 	    brport_nla_put_flag(skb, flags, mask,
--				IFLA_BRPORT_PROXYARP, BR_PROXYARP)) {
-+				IFLA_BRPORT_PROXYARP, BR_PROXYARP) ||
-+	    brport_nla_put_flag(skb, flags, mask,
-+				IFLA_BRPORT_BPDU_FILTER, BR_BPDU_FILTER)) {
- 		nla_nest_cancel(skb, protinfo);
- 		goto nla_put_failure;
- 	}