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    Subject[PATCH v2 02/24] alpha/cpu: Make sure arch_cpu_idle_dead() doesn't return
    Date
    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/alpha/kernel/process.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
    index d1f2e8b6b107..d0ff06eda8fa 100644
    --- a/arch/alpha/kernel/process.c
    +++ b/arch/alpha/kernel/process.c
    @@ -63,6 +63,7 @@ void arch_cpu_idle(void)
    void arch_cpu_idle_dead(void)
    {
    wtint(INT_MAX);
    + BUG();
    }
    #endif /* ALPHA_WTINT */

    --
    2.39.1
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