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, 136 deletions

diff --git a/target/linux/layerscape/patches-5.4/809-jailhouse-0003-ivshmem-net-fix-race-in-state-machine.patch b/target/linux/layerscape/patches-5.4/809-jailhouse-0003-ivshmem-net-fix-race-in-state-machine.patch
deleted file mode 100644
index ae6f839011..0000000000
--- a/target/linux/layerscape/patches-5.4/809-jailhouse-0003-ivshmem-net-fix-race-in-state-machine.patch
+++ /dev/null
@@ -1,136 +0,0 @@
-From 0af5d7d021bb899d9c3880415267e178a20fb7a9 Mon Sep 17 00:00:00 2001
-From: Mans Rullgard <mans@mansr.com>
-Date: Thu, 24 Nov 2016 18:46:41 +0000
-Subject: [PATCH] ivshmem-net: fix race in state machine
-
-(cherry picked from commit 5d663baed6a89d09bae4446f6509f9957c780bc7)
----
- drivers/net/ivshmem-net.c | 60 ++++++++++++++++++++++++-----------------------
- 1 file changed, 31 insertions(+), 29 deletions(-)
-
---- a/drivers/net/ivshmem-net.c
-+++ b/drivers/net/ivshmem-net.c
-@@ -36,6 +36,8 @@
- #define IVSHM_NET_STATE_READY	2
- #define IVSHM_NET_STATE_RUN	3
- 
-+#define IVSHM_NET_FLAG_RUN	0
-+
- #define IVSHM_NET_MTU_MIN 256
- #define IVSHM_NET_MTU_MAX 65535
- #define IVSHM_NET_MTU_DEF 16384
-@@ -96,6 +98,8 @@ struct ivshm_net {
- 	u32 lstate;
- 	u32 rstate;
- 
-+	unsigned long flags;
-+
- 	struct workqueue_struct *state_wq;
- 	struct work_struct state_work;
- 
-@@ -529,12 +533,32 @@ static void ivshm_net_run(struct net_dev
- {
- 	struct ivshm_net *in = netdev_priv(ndev);
- 
-+	if (in->lstate < IVSHM_NET_STATE_READY)
-+		return;
-+
-+	if (!netif_running(ndev))
-+		return;
-+
-+	if (test_and_set_bit(IVSHM_NET_FLAG_RUN, &in->flags))
-+		return;
-+
- 	netif_start_queue(ndev);
- 	napi_enable(&in->napi);
- 	napi_schedule(&in->napi);
- 	ivshm_net_set_state(in, IVSHM_NET_STATE_RUN);
- }
- 
-+static void ivshm_net_do_stop(struct net_device *ndev)
-+{
-+	struct ivshm_net *in = netdev_priv(ndev);
-+
-+	if (!test_and_clear_bit(IVSHM_NET_FLAG_RUN, &in->flags))
-+		return;
-+
-+	netif_stop_queue(ndev);
-+	napi_disable(&in->napi);
-+}
-+
- static void ivshm_net_state_change(struct work_struct *work)
- {
- 	struct ivshm_net *in = container_of(work, struct ivshm_net, state_work);
-@@ -560,21 +584,13 @@ static void ivshm_net_state_change(struc
- 		break;
- 
- 	case IVSHM_NET_STATE_READY:
-+	case IVSHM_NET_STATE_RUN:
- 		if (rstate >= IVSHM_NET_STATE_READY) {
- 			netif_carrier_on(ndev);
--			if (ndev->flags & IFF_UP)
--				ivshm_net_run(ndev);
-+			ivshm_net_run(ndev);
- 		} else {
- 			netif_carrier_off(ndev);
--			ivshm_net_set_state(in, IVSHM_NET_STATE_RESET);
--		}
--		break;
--
--	case IVSHM_NET_STATE_RUN:
--		if (rstate < IVSHM_NET_STATE_READY) {
--			netif_stop_queue(ndev);
--			napi_disable(&in->napi);
--			netif_carrier_off(ndev);
-+			ivshm_net_do_stop(ndev);
- 			ivshm_net_set_state(in, IVSHM_NET_STATE_RESET);
- 		}
- 		break;
-@@ -584,18 +600,13 @@ static void ivshm_net_state_change(struc
- 	WRITE_ONCE(in->rstate, rstate);
- }
- 
--static bool ivshm_net_check_state(struct net_device *ndev)
-+static void ivshm_net_check_state(struct net_device *ndev)
- {
- 	struct ivshm_net *in = netdev_priv(ndev);
- 	u32 rstate = readl(&in->ivshm_regs->rstate);
- 
--	if (rstate != READ_ONCE(in->rstate) ||
--	    in->lstate != IVSHM_NET_STATE_RUN) {
-+	if (rstate != in->rstate || !test_bit(IVSHM_NET_FLAG_RUN, &in->flags))
- 		queue_work(in->state_wq, &in->state_work);
--		return false;
--	}
--
--	return true;
- }
- 
- static irqreturn_t ivshm_net_int(int irq, void *data)
-@@ -617,24 +628,15 @@ static int ivshm_net_open(struct net_dev
- 
- 	netdev_reset_queue(ndev);
- 	ndev->operstate = IF_OPER_UP;
--
--	if (in->lstate == IVSHM_NET_STATE_READY)
--		ivshm_net_run(ndev);
-+	ivshm_net_run(ndev);
- 
- 	return 0;
- }
- 
- static int ivshm_net_stop(struct net_device *ndev)
- {
--	struct ivshm_net *in = netdev_priv(ndev);
--
- 	ndev->operstate = IF_OPER_DOWN;
--
--	if (in->lstate == IVSHM_NET_STATE_RUN) {
--		napi_disable(&in->napi);
--		netif_stop_queue(ndev);
--		ivshm_net_set_state(in, IVSHM_NET_STATE_READY);
--	}
-+	ivshm_net_do_stop(ndev);
- 
- 	return 0;
- }