enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/arm/mach-footbridge/isa-irq.c
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@@ -1,11 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  linux/arch/arm/mach-footbridge/irq.c
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  *
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  *  Copyright (C) 1996-2000 Russell King
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  *  Changelog:
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  *   22-Aug-1998 RMK	Restructured IRQ routines
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@@ -99,11 +96,6 @@
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 	generic_handle_irq(isa_irq);
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 }
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-static struct irqaction irq_cascade = {
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-	.handler = no_action,
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-	.name = "cascade",
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-};
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-
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 static struct resource pic1_resource = {
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 	.name	= "pic1",
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 	.start	= 0x20,
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@@ -163,7 +155,10 @@
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 		request_resource(&ioport_resource, &pic1_resource);
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 		request_resource(&ioport_resource, &pic2_resource);
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-		setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
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+
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+		irq = IRQ_ISA_CASCADE;
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+		if (request_irq(irq, no_action, 0, "cascade", NULL))
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+			pr_err("Failed to request irq %u (cascade)\n", irq);
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 		irq_set_chained_handler(host_irq, isa_irq_handler);
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