linux-kernel - Re: [PATCH] power: hibernate: optimize function structure

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Message-ID: <CAJZ5v0gunKQKOtMz4wOWAkyn1_Q5fGFtyqOWd7Y7=FedWAJikw@mail.gmail.com>
Date:   Fri, 20 Jan 2023 17:45:59 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Li kunyu <kunyu@...china.com>
Cc:     rafael@...nel.org, pavel@....cz, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] power: hibernate: optimize function structure

On Thu, Jan 12, 2023 at 6:25 AM Li kunyu <kunyu@...china.com> wrote:
>
> The goto statement jump is not required at the end of the if statement
> block, because it will be executed to the lower part of the goto
> statement.
>
> Signed-off-by: Li kunyu <kunyu@...china.com>

The patch itself is OK, but its subject should be something like "PM:
hibernate: x86: Drop unneeded goto statement from arch_resume_nosmt()"
and the changelog should be more precise, for example:

"The last goto statement in arch_resume_nosmt() is not necessary,
because the target label is right next to it."

Please update.

> ---
>  arch/x86/power/hibernate.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/x86/power/hibernate.c b/arch/x86/power/hibernate.c
> index 6f955eb1e163..936558c4e821 100644
> --- a/arch/x86/power/hibernate.c
> +++ b/arch/x86/power/hibernate.c
> @@ -210,8 +210,6 @@ int arch_resume_nosmt(void)
>                 if (ret)
>                         goto out;
>                 ret = cpuhp_smt_disable(old);
> -               if (ret)
> -                       goto out;
>         }
>  out:
>         cpu_hotplug_disable();
> --
> 2.18.2
>