linux-kernel - Re: [PATCH] cpufreq: remove unnecessary unlikely()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <2593189.gyA7ZCrH2V@aspire.rjw.lan>
Date:   Fri, 14 Sep 2018 10:31:14 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Igor Stoppa <igor.stoppa@...il.com>
Cc:     "Srivatsa S . Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
        Igor Stoppa <igor.stoppa@...wei.com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: remove unnecessary unlikely()

On Friday, September 7, 2018 6:09:55 PM CEST Igor Stoppa wrote:
> WARN_ON() already contains an unlikely(), so it's not necessary to wrap it
> into another.
> 
> Signed-off-by: Igor Stoppa <igor.stoppa@...wei.com>
> Cc: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> Cc: linux-pm@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  drivers/cpufreq/cpufreq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index f53fb41efb7b..7aa3dcad2175 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -403,7 +403,7 @@ EXPORT_SYMBOL_GPL(cpufreq_freq_transition_begin);
>  void cpufreq_freq_transition_end(struct cpufreq_policy *policy,
>  		struct cpufreq_freqs *freqs, int transition_failed)
>  {
> -	if (unlikely(WARN_ON(!policy->transition_ongoing)))
> +	if (WARN_ON(!policy->transition_ongoing))
>  		return;
>  
>  	cpufreq_notify_post_transition(policy, freqs, transition_failed);
> 

Applied, thanks!