linux-kernel - Re: [PATCH RESEND] cpufreq: Use list_is_last() to check last entry of the policy list

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

Message-ID: <20160127063611.GM3322@vireshk>
Date:	Wed, 27 Jan 2016 12:06:11 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
Cc:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>,
	"Juri Lelli <Lelli" <juri.lelli@....com>
Subject: Re: [PATCH RESEND] cpufreq: Use list_is_last() to check last entry
 of the policy list

On 27-01-16, 12:02, Gautham R. Shenoy wrote:
> Currently next_policy() explicitly checks if a policy is the last
> policy in the cpufreq_policy_list. Use the standard list_is_last
> primitive instead.
> 
> Cc: Viresh Kumar <viresh.kumar@...aro.org>
> Signed-off-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
> ---
> The earlier version one was based on an Juri's experimental branch. 
> I have based this one on linux-pm.git linux-next branch.
> 
>  drivers/cpufreq/cpufreq.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index c35e7da..e979ec7 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -48,11 +48,11 @@ static struct cpufreq_policy *next_policy(struct cpufreq_policy *policy,
>  					  bool active)
>  {
>  	do {
> -		policy = list_next_entry(policy, policy_list);
> -
>  		/* No more policies in the list */
> -		if (&policy->policy_list == &cpufreq_policy_list)
> +		if (list_is_last(&policy->policy_list, &cpufreq_policy_list))
>  			return NULL;
> +
> +		policy = list_next_entry(policy, policy_list);
>  	} while (!suitable_policy(policy, active));
>  
>  	return policy;

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh