kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/mips/loongson32/common/irq.c
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@@ -1,10 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
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- *
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- * This program is free software; you can redistribute	it and/or modify it
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- * under  the terms of	the GNU General	 Public License as published by the
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- * Free Software Foundation;  either version 2 of the  License, or (at your
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- * option) any later version.
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  */
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 #include <linux/interrupt.h>
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@@ -153,12 +149,6 @@
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 }
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-static struct irqaction cascade_irqaction = {
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-	.handler = no_action,
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-	.name = "cascade",
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-	.flags = IRQF_NO_THREAD,
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-};
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-
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 static void __init ls1x_irq_init(int base)
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 {
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 	int n;
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@@ -180,12 +170,17 @@
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 					 handle_level_irq);
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 	}
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-	setup_irq(INT0_IRQ, &cascade_irqaction);
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-	setup_irq(INT1_IRQ, &cascade_irqaction);
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-	setup_irq(INT2_IRQ, &cascade_irqaction);
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-	setup_irq(INT3_IRQ, &cascade_irqaction);
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+	if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
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+		pr_err("Failed to request irq %d (cascade)\n", INT0_IRQ);
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+	if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
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+		pr_err("Failed to request irq %d (cascade)\n", INT1_IRQ);
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+	if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
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+		pr_err("Failed to request irq %d (cascade)\n", INT2_IRQ);
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+	if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
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+		pr_err("Failed to request irq %d (cascade)\n", INT3_IRQ);
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 #if defined(CONFIG_LOONGSON1_LS1C)
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-	setup_irq(INT4_IRQ, &cascade_irqaction);
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+	if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
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+		pr_err("Failed to request irq %d (cascade)\n", INT4_IRQ);
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 #endif
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 }
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