kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/arc/kernel/kgdb.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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  * kgdb support for ARC
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  *
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  * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
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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/kgdb.h>
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@@ -192,19 +189,13 @@
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 	instruction_pointer(regs) = ip;
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 }
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-static void kgdb_call_nmi_hook(void *ignored)
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+void kgdb_call_nmi_hook(void *ignored)
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 {
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+	/* Default implementation passes get_irq_regs() but we don't */
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 	kgdb_nmicallback(raw_smp_processor_id(), NULL);
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 }
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-void kgdb_roundup_cpus(unsigned long flags)
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-{
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-	local_irq_enable();
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-	smp_call_function(kgdb_call_nmi_hook, NULL, 0);
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-	local_irq_disable();
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-}
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-
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-struct kgdb_arch arch_kgdb_ops = {
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+const struct kgdb_arch arch_kgdb_ops = {
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 	/* breakpoint instruction: TRAP_S 0x3 */
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 #ifdef CONFIG_CPU_BIG_ENDIAN
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 	.gdb_bpt_instr		= {0x78, 0x7e},