Linux Power Management development
 help / color / mirror / Atom feed
From: "zhenglifeng (A)" <zhenglifeng1@huawei.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: <rafael@kernel.org>, <linux-pm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linuxarm@huawei.com>,
	<jonathan.cameron@huawei.com>, <zhanjie9@hisilicon.com>,
	<lihuisong@huawei.com>, <yubowen8@huawei.com>,
	<zhangpengjie2@huawei.com>, <wangzhi12@huawei.com>,
	<linhongye@h-partners.com>
Subject: Re: [PATCH v2 2/2] cpufreq: cpufreq_boost_trigger_state() optimization
Date: Tue, 2 Dec 2025 09:32:37 +0800	[thread overview]
Message-ID: <3f51db20-3822-4be7-ba13-e858aab25dad@huawei.com> (raw)
In-Reply-To: <3t6quaz6j5mbzewgrszuzmjmv74bzqrskx5k4ewgsfbaijmoli@y7goctaq35mj>

On 2025/12/1 11:42, Viresh Kumar wrote:
> On 28-11-25, 17:13, Lifeng Zheng wrote:
>> Simplify the error handling branch code in cpufreq_boost_trigger_state().
>>
>> Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
>> ---
>>  drivers/cpufreq/cpufreq.c | 11 +++--------
>>  1 file changed, 3 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
>> index a4399e5490da..a725747572c9 100644
>> --- a/drivers/cpufreq/cpufreq.c
>> +++ b/drivers/cpufreq/cpufreq.c
>> @@ -2824,18 +2824,13 @@ static int cpufreq_boost_trigger_state(int state)
>>  
>>  		ret = policy_set_boost(policy, state);
>>  		if (ret)
>> -			goto err_reset_state;
>> +			break;
>>  	}
>>  
>> -	if (ret)
>> -		goto err_reset_state;
>> -
>>  	cpus_read_unlock();
>>  
>> -	return 0;
>> -
>> -err_reset_state:
>> -	cpus_read_unlock();
>> +	if (!ret)
> 
> Maybe we can make this `if (likely(!ret))`

For the platforms which are not boost supported, this will never be
matched. Is `likely` OK in this situation?

> 
>> +		return 0;
>>  
>>  	write_lock_irqsave(&cpufreq_driver_lock, flags);
>>  	cpufreq_driver->boost_enabled = !state;
> 
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> 


  reply	other threads:[~2025-12-02  1:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-28  9:13 [PATCH v2 0/2] cpufreq: Return -EOPNOTSUPP if no policy is boost supported Lifeng Zheng
2025-11-28  9:13 ` [PATCH v2 1/2] " Lifeng Zheng
2025-12-01  3:43   ` Viresh Kumar
2025-11-28  9:13 ` [PATCH v2 2/2] cpufreq: cpufreq_boost_trigger_state() optimization Lifeng Zheng
2025-12-01  3:42   ` Viresh Kumar
2025-12-02  1:32     ` zhenglifeng (A) [this message]
2025-12-02  4:58       ` Viresh Kumar
2025-12-02  6:24         ` zhenglifeng (A)
2025-12-02  6:46           ` Viresh Kumar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3f51db20-3822-4be7-ba13-e858aab25dad@huawei.com \
    --to=zhenglifeng1@huawei.com \
    --cc=jonathan.cameron@huawei.com \
    --cc=lihuisong@huawei.com \
    --cc=linhongye@h-partners.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=linuxarm@huawei.com \
    --cc=rafael@kernel.org \
    --cc=viresh.kumar@linaro.org \
    --cc=wangzhi12@huawei.com \
    --cc=yubowen8@huawei.com \
    --cc=zhangpengjie2@huawei.com \
    --cc=zhanjie9@hisilicon.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox