From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <stephen@networkplumber.org>
Received: from mail-pf1-f172.google.com (mail-pf1-f172.google.com
 [209.85.210.172]) by dpdk.org (Postfix) with ESMTP id 842781B4C5
 for <dev@dpdk.org>; Fri,  4 Jan 2019 20:27:22 +0100 (CET)
Received: by mail-pf1-f172.google.com with SMTP id b85so18735892pfc.3
 for <dev@dpdk.org>; Fri, 04 Jan 2019 11:27:22 -0800 (PST)
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=s/BJh7PbXY3lg4HyyCnYNd38atit2MaT9ocJsU43dXQ=;
 b=XtiYwR8mAHlWz/jxZ6ZxH0wTHqs3MhkbCCu/YZaWwsC87e2x0oVbe196upB+goApF3
 lyB+OH7tDDd6GiVCU7/42w+ycf3RxMzqQNPayYTc6YQ6MlDsX03TSMtu4nvnCEeZC2W1
 CpH8walAy0z431QStSQiM79rPUiglJLjrdWTMAUzYP3Gf8CjOA92cPSKtE/VIOLQi3jJ
 SAOTgIc/m561XY8U8jCY3szt3n1kwHM64eEHhEHPrfcwThsnL4nKhJKEBdWkLrITDJZz
 hL7yeR884Ji0imhLREYWzXAM1ui5CsAYCsrAeOsqWKvy1XBRZPSQU9h1FINhgfDLW7Up
 P2Qg==
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=s/BJh7PbXY3lg4HyyCnYNd38atit2MaT9ocJsU43dXQ=;
 b=VZqh/zvXaZq6BBnU0a26Ovbzu8m8cLxApt89ni/KrYY5/7b23uqiLeV1uiDAPSdNg8
 7yaGucXHiaNC4gCqxMCXRbJGUtSg2C9OJai1zytGWronFhbblRyiOOWtTG2AKnk+JvTw
 osAOW0smitR3h7+Ux+YR5iO8eXuDtUxC/9yRolH5Tn8d9UklLD7wqe6ulrQ/GLWik2Za
 MTmMhp4f3EmhNkORK+ri9Wzt72ZJdZauiMUh+9KhZGPkiOMOvMHkqRs1Q3SEb64r3lMY
 NI587hKqKVuUd06K/RqRZsp+fYd2OuxBnEeSUT9ClQ52CQhexXDoDzScqwss6gOyb4BB
 fVYA==
X-Gm-Message-State: AJcUukccd9eEOnxOeam8MF+1Um1T1q4zexl/A2TzARa4MJWlUcGlb6iD
 1IIGcBYBcsw2bviz8aK62PP4Ew==
X-Google-Smtp-Source: ALg8bN6spvvYhhAXg0pR9a3fAE/YAE63HfbSGyIycRgfTVi8Wcc9LoJ8XwOatQxwsSk1GiaOCBGC4g==
X-Received: by 2002:a63:902:: with SMTP id 2mr2526006pgj.219.1546630041590;
 Fri, 04 Jan 2019 11:27:21 -0800 (PST)
Received: from hermes.lan (204-195-22-127.wavecable.com. [204.195.22.127])
 by smtp.gmail.com with ESMTPSA id 202sm117718214pfy.87.2019.01.04.11.27.21
 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256);
 Fri, 04 Jan 2019 11:27:21 -0800 (PST)
Date: Fri, 4 Jan 2019 11:27:19 -0800
From: Stephen Hemminger <stephen@networkplumber.org>
To: Jakub Grajciar <jgrajcia@cisco.com>
Cc: <dev@dpdk.org>
Message-ID: <20190104112719.65841efb@hermes.lan>
In-Reply-To: <20181213133051.18779-1-jgrajcia@cisco.com>
References: <20181213133051.18779-1-jgrajcia@cisco.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Subject: Re: [dpdk-dev] [RFC v3] /net: memory interface (memif)
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Fri, 04 Jan 2019 19:27:22 -0000

On Thu, 13 Dec 2018 14:30:51 +0100
Jakub Grajciar <jgrajcia@cisco.com> wrote:

> +static ssize_t
> +memif_msg_send(int fd, memif_msg_t *msg, int afd)
> +{
> +	struct msghdr mh = { 0 };
> +	struct iovec iov[1];
> +	char ctl[CMSG_SPACE(sizeof(int))];
> +
> +	iov[0].iov_base = (void *)msg;

Since iov_base is of type void * the cast is unnecessary in C.