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arm/cpu: Add unreachable() to arch_cpu_idle_dead()

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arch_cpu_idle_dead() doesn't return.  Make that visible to the compiler
with an unreachable() code annotation.

Link: https://lkml.kernel.org/r/20230216183851.s5bnvniomq44rytu@treble
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Josh Poimboeuf 2023-02-16 10:38:55 -08:00
parent 550db6795e
commit b40c7d6d31
1 changed files with 2 additions and 0 deletions
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2
arch/arm/kernel/smp.c
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@ -382,6 +382,8 @@ void arch_cpu_idle_dead(void)
: "r" (task_stack_page(current) + THREAD_SIZE - 8),
"r" (current)
: "r0");
unreachable();
}
#endif /* CONFIG_HOTPLUG_CPU */