From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id D79737F88 for ; Wed, 29 Oct 2014 09:08:47 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 29 Oct 2014 01:11:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,808,1406617200"; d="scan'208";a="613282588" Received: from pgsmsx103.gar.corp.intel.com ([10.221.44.82]) by fmsmga001.fm.intel.com with ESMTP; 29 Oct 2014 01:17:36 -0700 Received: from kmsmsx151.gar.corp.intel.com (172.21.73.86) by PGSMSX103.gar.corp.intel.com (10.221.44.82) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 29 Oct 2014 16:16:34 +0800 Received: from shsmsx103.ccr.corp.intel.com (10.239.4.69) by KMSMSX151.gar.corp.intel.com (172.21.73.86) with Microsoft SMTP Server (TLS) id 14.3.195.1; Wed, 29 Oct 2014 16:16:34 +0800 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.202]) by SHSMSX103.ccr.corp.intel.com ([169.254.4.207]) with mapi id 14.03.0195.001; Wed, 29 Oct 2014 16:16:33 +0800 From: "Fu, JingguoX" To: "Ouyang, Changchun" , "dev@dpdk.org" Thread-Topic: [dpdk-dev] [PATCH] librte_vhost: Fix compilation issue Thread-Index: AQHP80M7Kh8PTMKBhkalxzhIyXPd95xGr7fA Date: Wed, 29 Oct 2014 08:16:32 +0000 Message-ID: <6BD6202160B55B409D42329311582262565924@SHSMSX101.ccr.corp.intel.com> References: <1414564778-25056-1-git-send-email-changchun.ouyang@intel.com> In-Reply-To: <1414564778-25056-1-git-send-email-changchun.ouyang@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH] librte_vhost: Fix compilation issue X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Oct 2014 08:08:49 -0000 Patch name: librte_vhost: Fix compilation issue Brief description: to fix compilation error on ubuntu14.04 for vhost lib a= nd example Test Flag: Tested-by Tester name: jingguox.fu@intel.com Commit ID: 1ab07743b21b785a71fa334641ab58e779532600 Result summary: total 3 cases, 3 passed, 0 failed Test Case 1: =09 Name: compile vhost on fc20 with gcc 4.8.3 x86_64 =09 Environment: OS: Fedora20 3.11.10-301.fc20.x86_64 GCC: gcc 4.8.3 CPU: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz NIC: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection [= 8086:10fb] Excepted: compilation success Test result: PASSED Test Case 2: =09 Name: compile vhost on fc20 with icc 14.0.2 x86_64 =09 Environment: OS: Fedora20 3.11.10-301.fc20.x86_64 ICC: icc 14.0.2 CPU: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz NIC: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection [= 8086:10fb] Excepted: compilation success Test result: PASSED Test Case 3: =09 Name: compile vhost on UB14.04 with gcc 4.8.2 x86_64 =09 Environment: OS: Ubuntu14.04 3.13.0-24-generic x86_64 GCC: gcc 4.8.2 CPU: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz NIC: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection [= 8086:10fb] Excepted: compilation success Test result: PASSED -----Original Message----- From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Ouyang Changchun Sent: Wednesday, October 29, 2014 14:40 To: dev@dpdk.org Subject: [dpdk-dev] [PATCH] librte_vhost: Fix compilation issue It fixes this compilation complain: "error: ignoring return value of 'realp= ath',=20 declared with attribute warn_unused_result [-Werror=3Dunused-result]" Signed-off-by: Changchun Ouyang --- lib/librte_vhost/virtio-net.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c index 27ba175..8015dd8 100644 --- a/lib/librte_vhost/virtio-net.c +++ b/lib/librte_vhost/virtio-net.c @@ -133,6 +133,7 @@ host_memory_map(struct virtio_net *dev, struct virtio_m= emory *mem, char mapfile[PATH_MAX]; char procdir[PATH_MAX]; char resolved_path[PATH_MAX]; + char *path =3D NULL; FILE *fmap; void *map; uint8_t found =3D 0; @@ -235,9 +236,11 @@ host_memory_map(struct virtio_net *dev, struct virtio_= memory *mem, while (NULL !=3D (dptr =3D readdir(dp))) { snprintf(memfile, PATH_MAX, "/proc/%u/fd/%s", pid, dptr->d_name); - realpath(memfile, resolved_path); - if (resolved_path =3D=3D NULL) { - RTE_LOG(ERR, VHOST_CONFIG, "(%"PRIu64") Failed to resolve fd directory\= n", dev->device_fh); + path =3D realpath(memfile, resolved_path); + if (path =3D=3D NULL) { + RTE_LOG(ERR, VHOST_CONFIG, + "(%"PRIu64") Failed to resolve fd directory\n", + dev->device_fh); closedir(dp); return -1; } --=20 1.8.4.2