add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/sh/kernel/nmi_debug.c
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@@ -1,9 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Copyright (C) 2007 Atmel Corporation
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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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 #include <linux/delay.h>
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 #include <linux/kdebug.h>
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@@ -52,7 +49,7 @@
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 	register_die_notifier(&nmi_debug_nb);
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 	if (*str != '=')
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-		return 0;
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+		return 1;
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 	for (p = str + 1; *p; p = sep + 1) {
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 		sep = strchr(p, ',');
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@@ -73,6 +70,6 @@
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 			break;
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 	}
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-	return 0;
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+	return 1;
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 }
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 __setup("nmi_debug", nmi_debug_setup);