Date:   Thu, 16 Feb 2023 10:38:51 -0800
From:   Josh Poimboeuf <jpoimboe@kernel.org>
To:     "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc:     linux-kernel@vger.kernel.org, jgross@suse.com,
        richard.henderson@linaro.org, ink@jurassic.park.msu.ru,
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Subject: [PATCH v2.1 03/24] arm/cpu: Add unreachable() to arch_cpu_idle_dead()
Message-ID: <20230216183851.s5bnvniomq44rytu@treble>
References: <cover.1676358308.git.jpoimboe@kernel.org>
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arch_cpu_idle_dead() doesn't return.  Make that visible to the compiler
with an unreachable() code annotation.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
 arch/arm/kernel/smp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 0b8c25763adc..441ea5cff390 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -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 */
 
-- 
2.39.1