From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <stephen@networkplumber.org>
Received: from mail-pg0-f52.google.com (mail-pg0-f52.google.com [74.125.83.52])
by dpdk.org (Postfix) with ESMTP id A678C7CFD
for <dev@dpdk.org>; Tue, 22 Aug 2017 05:59:13 +0200 (CEST)
Received: by mail-pg0-f52.google.com with SMTP id m133so28327460pga.5
for <dev@dpdk.org>; Mon, 21 Aug 2017 20:59:13 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=networkplumber-org.20150623.gappssmtp.com; s=20150623;
h=date:from:to:cc:subject:message-id:in-reply-to:references
:mime-version:content-transfer-encoding;
bh=2nVjOv9PsLdyhWbCu4TjcFSRCs0DUv8ReOK+2kXR4Uw=;
b=2OIj79oOnUXdAUD66Dypa9uWdtVJvm6pZfGwThNOdcCMHlC9p6uqo7uJRIzvTDY+31
/zUz6Xa1HOtEc3EV1BsMvJxiydvUZC29FNCddetI4sw3apmnawVtCCFvm62BqUWvjHJD
15yYPweoJOSdY/gexQ7zeYFIS1yiFTKjxPyGnLjrzFMGPg8OnsYJAdUfTZXHX1+lqHzC
GICYIB/bpQjRFAFmPGABvm0g2Mmh+NzjJxrrL3+qgj1dUTqh7+S8/9C2GDu8Yt6VM9/R
6hhm2BsMjy4KALPTjqrKtEzb+E9OfIIltg9EZQRCQCZIxwk4KT4yGyduNlPw1iAAyYTy
yUVg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to
:references:mime-version:content-transfer-encoding;
bh=2nVjOv9PsLdyhWbCu4TjcFSRCs0DUv8ReOK+2kXR4Uw=;
b=Z38KDAC9LR/km+tRN5Do1JocIgvuiM+SiimQNk8U1tanTTvPHPtgJTbCman8WZA2V9
qULQnICpTQc1iYxKGw6bRdNYStX8pRNnIwJrwhBzRTdeLRfK3qOZ7EsbPEvXhAcsKKic
HK4zIrrFEQ188lQtnoAenslJsMlevhBy+NiumFe4ClOJPU7GDHTQY29fg+PXvezk6CtX
SvalLqHdvc4c8yzIhPi7//EhZwt5/4cSQv888A3EBJaGBFzuOnJhHlr8Xi5IS8Llcizq
B2JI7woul0wJVEuY9aZPRyr94VfMhgoCjjba7eDJ55ib+XE/T7PHhJqOhV+T3/G8g0RW
V+RA==
X-Gm-Message-State: AHYfb5j4hBOzixmx0hvAZDRKFXn1QSsL6t+WVx0QUyGLIba6tyg+2NP6
xjl5zoNRfk7rJ+4K
X-Received: by 10.99.120.68 with SMTP id t65mr19727013pgc.104.1503374352911;
Mon, 21 Aug 2017 20:59:12 -0700 (PDT)
Received: from xeon-e3 (76-14-207-240.or.wavecable.com. [76.14.207.240])
by smtp.gmail.com with ESMTPSA id t14sm23230788pgr.94.2017.08.21.20.59.12
(version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256);
Mon, 21 Aug 2017 20:59:12 -0700 (PDT)
Date: Mon, 21 Aug 2017 20:59:05 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: Yipeng Wang <yipeng1.wang@intel.com>
Cc: vincent.jardin@6wind.com, bruce.richardson@intel.com,
konstantin.ananyev@intel.com, thomas@monjalon.net, dev@dpdk.org,
charlie.tai@intel.com, sameh.gobriel@intel.com, ren.wang@intel.com
Message-ID: <20170821205905.1704ec88@xeon-e3>
In-Reply-To: <1503361193-36699-2-git-send-email-yipeng1.wang@intel.com>
References: <1503361193-36699-1-git-send-email-yipeng1.wang@intel.com>
<1503361193-36699-2-git-send-email-yipeng1.wang@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Subject: Re: [dpdk-dev] [PATCH 1/7] member: implement main API
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
<mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
<mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Tue, 22 Aug 2017 03:59:14 -0000
On Mon, 21 Aug 2017 17:19:47 -0700
Yipeng Wang <yipeng1.wang@intel.com> wrote:
> +int
> +rte_member_lookup(const void *ss, const void *key,
> + MEMBER_SET_TYPE *set_id)
> +{
> + const struct rte_member_setsum *setsum = ss;
> + if (setsum == NULL || key == NULL || set_id == NULL)
> + return -EINVAL;
> +
> + int ret = 0;
Don't needlessly initialize all variable.
In all code paths, ret is set.
In fact you could just make all cases of the switch into return
and compiler could optimize it as a tail call.