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, 158 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0271-net-mscc-ocelot-use-skb-queue-instead-of-skbs-list.patch b/target/linux/layerscape/patches-5.4/701-net-0271-net-mscc-ocelot-use-skb-queue-instead-of-skbs-list.patch
deleted file mode 100644
index 4ed7c26770..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0271-net-mscc-ocelot-use-skb-queue-instead-of-skbs-list.patch
+++ /dev/null
@@ -1,158 +0,0 @@
-From e7e0b3b89da97e3186fbe3774a1ca9b77402d893 Mon Sep 17 00:00:00 2001
-From: Yangbo Lu <yangbo.lu@nxp.com>
-Date: Wed, 27 Nov 2019 15:27:57 +0800
-Subject: [PATCH] net: mscc: ocelot: use skb queue instead of skbs list
-
-Convert to use skb queue instead of the list of skbs.
-The skb queue could provide protection with lock.
-
-Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/ethernet/mscc/ocelot.c | 54 +++++++++++++-------------------------
- include/soc/mscc/ocelot.h          |  9 +------
- 2 files changed, 19 insertions(+), 44 deletions(-)
-
---- a/drivers/net/ethernet/mscc/ocelot.c
-+++ b/drivers/net/ethernet/mscc/ocelot.c
-@@ -583,18 +583,10 @@ int ocelot_port_add_txtstamp_skb(struct
- 
- 	if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP &&
- 	    ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
--		struct ocelot_skb *oskb =
--			kzalloc(sizeof(struct ocelot_skb), GFP_ATOMIC);
--
--		if (unlikely(!oskb))
--			return -ENOMEM;
--
- 		shinfo->tx_flags |= SKBTX_IN_PROGRESS;
--
--		oskb->skb = skb;
--		oskb->id = ocelot_port->ts_id % 4;
--
--		list_add_tail(&oskb->head, &ocelot_port->skbs);
-+		/* Store timestamp ID in cb[0] of sk_buff */
-+		skb->cb[0] = ocelot_port->ts_id % 4;
-+		skb_queue_tail(&ocelot_port->tx_skbs, skb);
- 		return 0;
- 	}
- 	return -ENODATA;
-@@ -704,12 +696,11 @@ void ocelot_get_txtstamp(struct ocelot *
- 	int budget = OCELOT_PTP_QUEUE_SZ;
- 
- 	while (budget--) {
-+		struct sk_buff *skb, *skb_tmp, *skb_match = NULL;
- 		struct skb_shared_hwtstamps shhwtstamps;
--		struct list_head *pos, *tmp;
--		struct sk_buff *skb = NULL;
--		struct ocelot_skb *entry;
- 		struct ocelot_port *port;
- 		struct timespec64 ts;
-+		unsigned long flags;
- 		u32 val, id, txport;
- 
- 		val = ocelot_read(ocelot, SYS_PTP_STATUS);
-@@ -727,22 +718,22 @@ void ocelot_get_txtstamp(struct ocelot *
- 		/* Retrieve its associated skb */
- 		port = ocelot->ports[txport];
- 
--		list_for_each_safe(pos, tmp, &port->skbs) {
--			entry = list_entry(pos, struct ocelot_skb, head);
--			if (entry->id != id)
--				continue;
-+		spin_lock_irqsave(&port->tx_skbs.lock, flags);
- 
--			skb = entry->skb;
--
--			list_del(pos);
--			kfree(entry);
-+		skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) {
-+			if (skb->cb[0] != id)
-+				continue;
-+			__skb_unlink(skb, &port->tx_skbs);
-+			skb_match = skb;
- 			break;
- 		}
- 
-+		spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
-+
- 		/* Next ts */
- 		ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT);
- 
--		if (unlikely(!skb))
-+		if (unlikely(!skb_match))
- 			continue;
- 
- 		/* Get the h/w timestamp */
-@@ -751,9 +742,9 @@ void ocelot_get_txtstamp(struct ocelot *
- 		/* Set the timestamp into the skb */
- 		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
- 		shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
--		skb_tstamp_tx(skb, &shhwtstamps);
-+		skb_tstamp_tx(skb_match, &shhwtstamps);
- 
--		dev_kfree_skb_any(skb);
-+		dev_kfree_skb_any(skb_match);
- 	}
- }
- EXPORT_SYMBOL(ocelot_get_txtstamp);
-@@ -2205,7 +2196,7 @@ void ocelot_init_port(struct ocelot *oce
- {
- 	struct ocelot_port *ocelot_port = ocelot->ports[port];
- 
--	INIT_LIST_HEAD(&ocelot_port->skbs);
-+	skb_queue_head_init(&ocelot_port->tx_skbs);
- 
- 	/* Basic L2 initialization */
- 
-@@ -2490,9 +2481,7 @@ EXPORT_SYMBOL(ocelot_init);
- 
- void ocelot_deinit(struct ocelot *ocelot)
- {
--	struct list_head *pos, *tmp;
- 	struct ocelot_port *port;
--	struct ocelot_skb *entry;
- 	int i;
- 
- 	cancel_delayed_work(&ocelot->stats_work);
-@@ -2504,14 +2493,7 @@ void ocelot_deinit(struct ocelot *ocelot
- 
- 	for (i = 0; i < ocelot->num_phys_ports; i++) {
- 		port = ocelot->ports[i];
--
--		list_for_each_safe(pos, tmp, &port->skbs) {
--			entry = list_entry(pos, struct ocelot_skb, head);
--
--			list_del(pos);
--			dev_kfree_skb_any(entry->skb);
--			kfree(entry);
--		}
-+		skb_queue_purge(&port->tx_skbs);
- 	}
- }
- EXPORT_SYMBOL(ocelot_deinit);
---- a/include/soc/mscc/ocelot.h
-+++ b/include/soc/mscc/ocelot.h
-@@ -406,13 +406,6 @@ struct ocelot_ops {
- 	int (*reset)(struct ocelot *ocelot);
- };
- 
--struct ocelot_skb {
--	struct list_head head;
--	struct sk_buff *skb;
--	u8 id;
--};
--
--
- struct ocelot_port {
- 	struct ocelot			*ocelot;
- 
-@@ -425,7 +418,7 @@ struct ocelot_port {
- 	u16				vid;
- 
- 	u8				ptp_cmd;
--	struct list_head		skbs;
-+	struct sk_buff_head		tx_skbs;
- 	u8				ts_id;
- };
-