[PATCH 05/22] csky/cpu: Make sure arch_cpu_idle_dead() doesn't return
From: Josh Poimboeuf <jpoimboe@kernel.org>
Date: 2023-02-03 22:06:06
Also in:
linux-alpha, linux-arm-kernel, linux-mips, linux-sh, lkml, loongarch, sparclinux
Subsystem:
c-sky architecture, the rest · Maintainers:
Guo Ren, Linus Torvalds
arch_cpu_idle_dead() doesn't return. Make that more explicit with a BUG(). BUG() is preferable to unreachable() because BUG() is a more explicit failure mode and avoids undefined behavior like falling off the edge of the function into whatever code happens to be next. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> --- arch/csky/kernel/smp.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index b45d1073307f..0ec20efaf5fd 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c@@ -317,5 +317,7 @@ void arch_cpu_idle_dead(void) "jmpi csky_start_secondary" : : "r" (secondary_stack)); + + BUG(); } #endif
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2.39.0