linux-kernel - Re: [PATCH] lib/string.c: make strncmp() smaller

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Message-ID: <20190209130207.GA11988@avx2>
Date:   Sat, 9 Feb 2019 16:02:07 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Joe Perches <joe@...ches.com>
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] lib/string.c: make strncmp() smaller

On Fri, Feb 08, 2019 at 01:31:49AM -0800, Joe Perches wrote:
> On Fri, 2019-02-08 at 10:34 +0300, Alexey Dobriyan wrote:

> > -			return c1 < c2 ? -1 : 1;
> > +			return c1 - c2;
> 
> This does change the return value for most comparisons.

It does.

> Wasn't there a specific reason for -1 and 1?

Maybe. Spec says anything positive or negative works.