linux-kernel - Re: [PATCH v2 10/24] mips/cpu: Make sure play

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Date:   Tue, 14 Feb 2023 08:50:33 +0100
From:   Philippe Mathieu-Daudé <philmd@...aro.org>
To:     Josh Poimboeuf <jpoimboe@...nel.org>, linux-kernel@...r.kernel.org
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Subject: Re: [PATCH v2 10/24] mips/cpu: Make sure play_dead() doesn't return

On 14/2/23 08:05, Josh Poimboeuf wrote:
> play_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.
> 
> Acked-by: Florian Fainelli <f.fainelli@...il.com>
> Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
> ---
>   arch/mips/kernel/smp-bmips.c | 2 ++
>   arch/mips/loongson64/smp.c   | 1 +
>   2 files changed, 3 insertions(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@...aro.org>