linux-kernel - Re: [PATCH] x86: bpf_jit_comp: simplify trivial boolean return

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Message-ID: <1417685187.2721.1.camel@perches.com>
Date:	Thu, 04 Dec 2014 01:26:27 -0800
From:	Joe Perches <joe@...ches.com>
To:	Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:	David Laight <David.Laight@...LAB.COM>,
	Quentin Lambert <lambert.quentin@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: bpf_jit_comp: simplify trivial boolean return

On Thu, 2014-11-27 at 10:49 -0800, Joe Perches wrote:
> On Thu, 2014-11-27 at 12:25 +0000, David Laight wrote:
> > Why the change in data?
> 
> btw: without gcov and using -O2
> 
> $ size arch/x86/net/bpf_jit_comp.o*
>    text	   data	    bss	    dec	    hex	filename
>    9671	      4	      0	   9675	   25cb	arch/x86/net/bpf_jit_comp.o.new
>   10679	      4	      0	  10683	   29bb	arch/x86/net/bpf_jit_comp.o.old

Alexei?

Is this 10% reduction in size a good reason to change the code?

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