From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 72049A0096 for <public@inbox.dpdk.org>; Fri, 12 Apr 2019 19:13:24 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 342D51B277; Fri, 12 Apr 2019 19:13:23 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id CDB9F1B1FE; Fri, 12 Apr 2019 19:13:21 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Apr 2019 10:13:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,342,1549958400"; d="scan'208";a="163914093" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga001.fm.intel.com with ESMTP; 12 Apr 2019 10:13:17 -0700 To: Thomas Monjalon <thomas@monjalon.net>, David Christensen <drc@linux.vnet.ibm.com> Cc: arybchenko@solarflare.com, dev@dpdk.org, radhika.chirra@ibm.com, stable@dpdk.org, Vivian Kong <vivkong@ca.ibm.com> References: <1554927376-93022-1-git-send-email-drc@linux.vnet.ibm.com> <1741590.oPye4Mstr3@xps> <a8c995fe-d809-be32-9222-c48a14ac36a7@linux.vnet.ibm.com> <1832941.R5tAQzo2FV@xps> From: Ferruh Yigit <ferruh.yigit@intel.com> Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1832941.R5tAQzo2FV@xps> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH] ethdev: missing typecast from void in eth_dev_pci_specific_init 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> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> Message-ID: <20190412171316.yzzIFr8hRh-I8eemOf9eCtpg4gM5OTQV7AhsdVyXVWc@z> On 4/10/2019 10:14 PM, Thomas Monjalon wrote: > 10/04/2019 22:58, David Christensen: >>> This is a duplicate of this patch: >>> >>> https://patches.dpdk.org/patch/52505/ >>> >>> You are from 2 different Linux teams at IBM, >>> you hit the same issue at the same time, >>> you both miss to give an explanation, >>> funny. >> >> We both work for infrastructure teams who are supporting a project team >> that is developing a DPDK application that runs across multiple CPU >> architectures and encountered the error. >> >> The error comes from g++ (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0: >> >> [CXX] g++ -o utils/pcap_handle.o -c utils/pcap_handle.cc -g3 >> -ggdb3 -mcpu=native -mtune=native -isystem >> /home/rchirra/gen/io/ppc64include -std=gnu++11 -flax-vector-conversions >> -Werror -isystem /home/rchirra/gen/io >> >> In file included from drivers/pmd.cc:7:0: >> /home/rchirra/gen/io/deps/dpdk/build/include/rte_ethdev_pci.h: >> In function ‘int eth_dev_pci_specific_init(rte_eth_dev*, void*)’: >> /home/rchirra/gen/io/deps/dpdk/build/include/rte_ethdev_pci.h:75:35: >> error: invalid conversion from ‘void*’ to ‘rte_pci_device*’ [-fpermissive] >> struct rte_pci_device *pci_dev = bus_device; >> ^~~~~~~~~~ >> make[1]: *** [drivers/pmd.o] Error 1 >> >> Do you believe that more permissive compiler flags are the better answer? > > No, we should not force any compiler flag of the application. > We are even trying to support pedantic flags in the app. > So it seems we must fix it. > > We just need to change the title to mention it fixes the build for C++, > and add the error message in the body. > I agree our public headers should be usable from c++ applications, but this header is not a public header. Is the DPDK driver compiled with c++ in this case? If so do we support (or have a target for support) that DPDK library itself can be compiled by c++ compiler?