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Date: Sat, 31 Jan 2015 22:52:50 +0100
From: SF Markus Elfring <elfring@users.sourceforge.net>
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To: Lino Sanfilippo <LinoSanfilippo@gmx.de>,
        "David S. Miller" <davem@davemloft.net>,
        Jamal Hadi Salim <jhs@mojatatu.com>, netdev@vger.kernel.org
CC: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org,
        Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH] net: sched: One function call less in em_meta_change()
 after error detection
References: <5307CAA2.8060406@users.sourceforge.net> <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6> <530A086E.8010901@users.sourceforge.net> <alpine.DEB.2.02.1402231635510.1985@localhost6.localdomain6> <530A72AA.3000601@users.sourceforge.net> <alpine.DEB.2.02.1402240658210.2090@localhost6.localdomain6> <530B5FB6.6010207@users.sourceforge.net> <alpine.DEB.2.10.1402241710370.2074@hadrien> <530C5E18.1020800@users.sourceforge.net> <alpine.DEB.2.10.1402251014170.2080@hadrien> <530CD2C4.4050903@users.sourceforge.net> <alpine.DEB.2.10.1402251840450.7035@hadrien> <530CF8FF.8080600@users.sourceforge.net> <alpine.DEB.2.02.1402252117150.2047@localhost6.localdomain6> <530DD06F.4090703@users.sourceforge.net> <alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6> <5317A59D.4@users.sourceforge.net> <54CD042E.6030606@users.sourceforge.net> <54CD15EE.5040401@gmx.de>
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>> -errout:
>> -	if (err && meta)
>> -		meta_delete(meta);
> 
> Since this patch seems to be about optimization and cleanup you should
> probably also remove the now unnecessary initialization of "meta" with
> NULL at the beginning of the function...

Will the optimiser of the C compiler drop any remaining unnecessary
variable initialisations?

Do you want another update step here?

Regards,
Markus