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, 55 deletions

diff --git a/target/linux/bcm63xx/patches-5.4/040-v5.12-bcm63xx_enet-batch-process-rx-path.patch b/target/linux/bcm63xx/patches-5.4/040-v5.12-bcm63xx_enet-batch-process-rx-path.patch
deleted file mode 100644
index ab1a4a91e1..0000000000
--- a/target/linux/bcm63xx/patches-5.4/040-v5.12-bcm63xx_enet-batch-process-rx-path.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-From 9cbfea02c1dbee0afb9128f065e6e793672b9ff7 Mon Sep 17 00:00:00 2001
-From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
-Date: Wed, 6 Jan 2021 22:42:02 +0800
-Subject: [PATCH 1/7] bcm63xx_enet: batch process rx path
-
-Use netif_receive_skb_list to batch process rx skb.
-Tested on BCM6328 320 MHz using iperf3 -M 512, increasing performance
-by 12.5%.
-
-Before:
-[ ID] Interval           Transfer     Bandwidth       Retr
-[  4]   0.00-30.00  sec   120 MBytes  33.7 Mbits/sec  277         sender
-[  4]   0.00-30.00  sec   120 MBytes  33.5 Mbits/sec            receiver
-
-After:
-[ ID] Interval           Transfer     Bandwidth       Retr
-[  4]   0.00-30.00  sec   136 MBytes  37.9 Mbits/sec  203         sender
-[  4]   0.00-30.00  sec   135 MBytes  37.7 Mbits/sec            receiver
-
-Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
-Acked-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Jakub Kicinski <kuba@kernel.org>
----
- drivers/net/ethernet/broadcom/bcm63xx_enet.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
---- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-@@ -298,10 +298,12 @@ static void bcm_enet_refill_rx_timer(str
- static int bcm_enet_receive_queue(struct net_device *dev, int budget)
- {
- 	struct bcm_enet_priv *priv;
-+	struct list_head rx_list;
- 	struct device *kdev;
- 	int processed;
- 
- 	priv = netdev_priv(dev);
-+	INIT_LIST_HEAD(&rx_list);
- 	kdev = &priv->pdev->dev;
- 	processed = 0;
- 
-@@ -392,10 +394,12 @@ static int bcm_enet_receive_queue(struct
- 		skb->protocol = eth_type_trans(skb, dev);
- 		dev->stats.rx_packets++;
- 		dev->stats.rx_bytes += len;
--		netif_receive_skb(skb);
-+		list_add_tail(&skb->list, &rx_list);
- 
- 	} while (--budget > 0);
- 
-+	netif_receive_skb_list(&rx_list);
-+
- 	if (processed || !priv->rx_desc_count) {
- 		bcm_enet_refill_rx(dev);
-