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, 40 deletions

diff --git a/target/linux/bcm63xx/patches-5.4/046-v5.12-bcm63xx_enet-improve-rx-loop.patch b/target/linux/bcm63xx/patches-5.4/046-v5.12-bcm63xx_enet-improve-rx-loop.patch
deleted file mode 100644
index 65d3e2571a..0000000000
--- a/target/linux/bcm63xx/patches-5.4/046-v5.12-bcm63xx_enet-improve-rx-loop.patch
+++ /dev/null
@@ -1,40 +0,0 @@
-From ae2259eebeacb7753e3043278957b45840123972 Mon Sep 17 00:00:00 2001
-From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
-Date: Wed, 6 Jan 2021 22:42:08 +0800
-Subject: [PATCH 7/7] bcm63xx_enet: improve rx loop
-
-Use existing rx processed count to track against budget, thereby making
-budget decrement operation redundant.
-
-rx_desc_count can be calculated outside the rx loop, making the loop a
-bit smaller.
-
-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 | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
---- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-@@ -340,7 +340,6 @@ static int bcm_enet_receive_queue(struct
- 		priv->rx_curr_desc++;
- 		if (priv->rx_curr_desc == priv->rx_ring_size)
- 			priv->rx_curr_desc = 0;
--		priv->rx_desc_count--;
- 
- 		/* if the packet does not have start of packet _and_
- 		 * end of packet flag set, then just recycle it */
-@@ -405,9 +404,10 @@ static int bcm_enet_receive_queue(struct
- 		dev->stats.rx_bytes += len;
- 		list_add_tail(&skb->list, &rx_list);
- 
--	} while (--budget > 0);
-+	} while (processed < budget);
- 
- 	netif_receive_skb_list(&rx_list);
-+	priv->rx_desc_count -= processed;
- 
- 	if (processed || !priv->rx_desc_count) {
- 		bcm_enet_refill_rx(dev, true);