disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/powerpc/platforms/powermac/udbg_scc.c
..
..
@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * udbg for zilog scc ports as found on Apple PowerMacs
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  *
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  * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
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- *
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- *      This program is free software; you can redistribute it and/or
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- *      modify it under the terms of the GNU General Public License
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- *      as published by the Free Software Foundation; either version
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- *      2 of the License, or (at your option) any later version.
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  */
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 #include <linux/types.h>
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 #include <asm/udbg.h>
..
..
@@ -84,10 +80,10 @@
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 	path = of_get_property(of_chosen, "linux,stdout-path", NULL);
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 	if (path != NULL)
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 		stdout = of_find_node_by_path(path);
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-	for (ch = NULL; (ch = of_get_next_child(escc, ch)) != NULL;) {
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+	for_each_child_of_node(escc, ch) {
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 		if (ch == stdout)
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 			ch_def = of_node_get(ch);
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-		if (strcmp(ch->name, "ch-a") == 0)
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+		if (of_node_name_eq(ch, "ch-a"))
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 			ch_a = of_node_get(ch);
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 	}
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 	if (ch_def == NULL && !force_scc)