linux-kernel - Re: [PATCH] power: cpupower: utils: Optimize print_online_cpus and print_offline

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Message-Id: <20221013020121.2874-1-kunyu@nfschina.com>
Date:   Thu, 13 Oct 2022 10:01:20 +0800
From:   Li kunyu <kunyu@...china.com>
To:     skhan@...uxfoundation.org
Cc:     kunyu@...china.com, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, ray.huang@....com, shuah@...nel.org,
        trenn@...e.com
Subject: Re: [PATCH] power: cpupower: utils: Optimize print_online_cpus and print_offline_cpus function

I'm glad to get your reply. In previous tests, it was found that variable initialization and assignment use mov related instructions. Therefore, when I analyze the code and find that removing some variable initialization and assignment does not affect the function and security, I will try to remove variable initialization.

Find the malloc function and find that its return value is void * type, so it does not need to cast.

thanks,
kunyu