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From:   Li kunyu <kunyu@nfschina.com>
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Subject: Re: [PATCH] mm: Functions may simplify the use of return values
Date:   Mon,  9 May 2022 19:39:19 +0800
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I estimate that this function should not add code in the next year or two.
I consider and optimize this function in terms of code execution efficiency.
There may be a better way.