From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp

---
 kernel/drivers/acpi/irq.c |   35 +++++++++++++++++++++++++++++------
 1 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/kernel/drivers/acpi/irq.c b/kernel/drivers/acpi/irq.c
index 7c352cb..e209081 100644
--- a/kernel/drivers/acpi/irq.c
+++ b/kernel/drivers/acpi/irq.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ACPI GSI IRQ layer
  *
  * Copyright (C) 2015 ARM Ltd.
  * Author: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/acpi.h>
 #include <linux/irq.h>
@@ -196,7 +193,7 @@
 		fwnode = acpi_gsi_domain_id;
 		acpi_irq_parse_one_match(fwnode, irq->interrupts[ctx->index],
 					 irq->triggering, irq->polarity,
-					 irq->sharable, ctx);
+					 irq->shareable, ctx);
 		return AE_CTRL_TERMINATE;
 	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 		eirq = &ares->data.extended_irq;
@@ -209,7 +206,7 @@
 		fwnode = acpi_get_irq_source_fwhandle(&eirq->resource_source);
 		acpi_irq_parse_one_match(fwnode, eirq->interrupts[ctx->index],
 					 eirq->triggering, eirq->polarity,
-					 eirq->sharable, ctx);
+					 eirq->shareable, ctx);
 		return AE_CTRL_TERMINATE;
 	}
 
@@ -295,3 +292,29 @@
 	acpi_irq_model = model;
 	acpi_gsi_domain_id = fwnode;
 }
+
+/**
+ * acpi_irq_create_hierarchy - Create a hierarchical IRQ domain with the default
+ *                             GSI domain as its parent.
+ * @flags:      Irq domain flags associated with the domain
+ * @size:       Size of the domain.
+ * @fwnode:     Optional fwnode of the interrupt controller
+ * @ops:        Pointer to the interrupt domain callbacks
+ * @host_data:  Controller private data pointer
+ */
+struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
+					     unsigned int size,
+					     struct fwnode_handle *fwnode,
+					     const struct irq_domain_ops *ops,
+					     void *host_data)
+{
+	struct irq_domain *d = irq_find_matching_fwnode(acpi_gsi_domain_id,
+							DOMAIN_BUS_ANY);
+
+	if (!d)
+		return NULL;
+
+	return irq_domain_create_hierarchy(d, flags, size, fwnode, ops,
+					   host_data);
+}
+EXPORT_SYMBOL_GPL(acpi_irq_create_hierarchy);

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