From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <xiaolong.ye@intel.com>
Received: from mga09.intel.com (mga09.intel.com [134.134.136.24])
by dpdk.org (Postfix) with ESMTP id D1A4D4F91;
Thu, 4 Apr 2019 08:52:21 +0200 (CEST)
X-Amp-Result: UNSCANNABLE
X-Amp-File-Uploaded: False
Received: from fmsmga001.fm.intel.com ([10.253.24.23])
by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;
03 Apr 2019 23:52:20 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.60,306,1549958400"; d="scan'208";a="161266356"
Received: from yexl-server.sh.intel.com (HELO localhost) ([10.67.110.206])
by fmsmga001.fm.intel.com with ESMTP; 03 Apr 2019 23:52:18 -0700
Date: Thu, 4 Apr 2019 14:47:24 +0800
From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Tiwei Bie <tiwei.bie@intel.com>
Cc: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>, dev@dpdk.org,
maxime.coquelin@redhat.com, zhihong.wang@intel.com, stable@dpdk.org
Message-ID: <20190404064724.GA33544@intel.com>
References: <20190403160823.1337-1-mohammad.abdul.awal@intel.com>
<20190404060354.GA5423@dpdk-tbie.sh.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20190404060354.GA5423@dpdk-tbie.sh.intel.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Subject: Re: [dpdk-dev] [PATCH 3/3] vhost: fix null pointer checking
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: Thu, 04 Apr 2019 06:52:22 -0000
Hi, Tiwei,
On 04/04, Tiwei Bie wrote:
[snip]
>> @@ -515,7 +515,7 @@ rte_vhost_get_ifname(int vid, char *buf, size_t len)
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (dev == NULL)
>> + if (dev == NULL || !buf)
>
>It would be better to do the check in this way: (!dev || !buf)
>for consistency.
>
According to DPDK coding conventions 1.8.1 on NULL pointers [1], shouldn't it be
if (dev == NULL || buf == NULL)?
[1] https://doc.dpdk.org/guides/contributing/coding_style.html#null-pointers
Thanks,
Xiaolong
>Thanks for the work!
>Tiwei
>
>
>> return -1;
>>
>> len = RTE_MIN(len, sizeof(dev->ifname));
>> @@ -532,7 +532,7 @@ rte_vhost_get_negotiated_features(int vid, uint64_t *features)
>> struct virtio_net *dev;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !features)
>> return -1;
>>
>> *features = dev->features;
>> @@ -547,7 +547,7 @@ rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
>> size_t size;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !mem)
>> return -1;
>>
>> size = dev->mem->nregions * sizeof(struct rte_vhost_mem_region);
>> @@ -570,7 +570,7 @@ rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,
>> struct vhost_virtqueue *vq;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !vring)
>> return -1;
>>
>> if (vring_idx >= VHOST_MAX_VRING)
>> @@ -763,7 +763,7 @@ int rte_vhost_get_log_base(int vid, uint64_t *log_base,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !log_base || !log_size)
>> return -1;
>>
>> *log_base = dev->log_base;
>> @@ -777,7 +777,7 @@ int rte_vhost_get_vring_base(int vid, uint16_t queue_id,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !last_avail_idx || !last_used_idx)
>> return -1;
>>
>> *last_avail_idx = dev->virtqueue[queue_id]->last_avail_idx;
>> @@ -805,7 +805,7 @@ int rte_vhost_extern_callback_register(int vid,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !ops)
>> return -1;
>>
>> dev->extern_ops = *ops;
>> --
>> 2.17.1
>>
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 DE679A0679
for <public@inbox.dpdk.org>; Thu, 4 Apr 2019 08:52:25 +0200 (CEST)
Received: from [92.243.14.124] (localhost [127.0.0.1])
by dpdk.org (Postfix) with ESMTP id 2CBEB5323;
Thu, 4 Apr 2019 08:52:24 +0200 (CEST)
Received: from mga09.intel.com (mga09.intel.com [134.134.136.24])
by dpdk.org (Postfix) with ESMTP id D1A4D4F91;
Thu, 4 Apr 2019 08:52:21 +0200 (CEST)
X-Amp-Result: UNSCANNABLE
X-Amp-File-Uploaded: False
Received: from fmsmga001.fm.intel.com ([10.253.24.23])
by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;
03 Apr 2019 23:52:20 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.60,306,1549958400"; d="scan'208";a="161266356"
Received: from yexl-server.sh.intel.com (HELO localhost) ([10.67.110.206])
by fmsmga001.fm.intel.com with ESMTP; 03 Apr 2019 23:52:18 -0700
Date: Thu, 4 Apr 2019 14:47:24 +0800
From: Ye Xiaolong <xiaolong.ye@intel.com>
To: Tiwei Bie <tiwei.bie@intel.com>
Cc: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>, dev@dpdk.org,
maxime.coquelin@redhat.com, zhihong.wang@intel.com, stable@dpdk.org
Message-ID: <20190404064724.GA33544@intel.com>
References: <20190403160823.1337-1-mohammad.abdul.awal@intel.com>
<20190404060354.GA5423@dpdk-tbie.sh.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Disposition: inline
In-Reply-To: <20190404060354.GA5423@dpdk-tbie.sh.intel.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Subject: Re: [dpdk-dev] [PATCH 3/3] vhost: fix null pointer checking
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: <20190404064724.lpPcTBX9N85tX80ANeShYeJesZGOYazo47uFZ8skvac@z>
Hi, Tiwei,
On 04/04, Tiwei Bie wrote:
[snip]
>> @@ -515,7 +515,7 @@ rte_vhost_get_ifname(int vid, char *buf, size_t len)
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (dev == NULL)
>> + if (dev == NULL || !buf)
>
>It would be better to do the check in this way: (!dev || !buf)
>for consistency.
>
According to DPDK coding conventions 1.8.1 on NULL pointers [1], shouldn't it be
if (dev == NULL || buf == NULL)?
[1] https://doc.dpdk.org/guides/contributing/coding_style.html#null-pointers
Thanks,
Xiaolong
>Thanks for the work!
>Tiwei
>
>
>> return -1;
>>
>> len = RTE_MIN(len, sizeof(dev->ifname));
>> @@ -532,7 +532,7 @@ rte_vhost_get_negotiated_features(int vid, uint64_t *features)
>> struct virtio_net *dev;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !features)
>> return -1;
>>
>> *features = dev->features;
>> @@ -547,7 +547,7 @@ rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
>> size_t size;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !mem)
>> return -1;
>>
>> size = dev->mem->nregions * sizeof(struct rte_vhost_mem_region);
>> @@ -570,7 +570,7 @@ rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,
>> struct vhost_virtqueue *vq;
>>
>> dev = get_device(vid);
>> - if (!dev)
>> + if (!dev || !vring)
>> return -1;
>>
>> if (vring_idx >= VHOST_MAX_VRING)
>> @@ -763,7 +763,7 @@ int rte_vhost_get_log_base(int vid, uint64_t *log_base,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !log_base || !log_size)
>> return -1;
>>
>> *log_base = dev->log_base;
>> @@ -777,7 +777,7 @@ int rte_vhost_get_vring_base(int vid, uint16_t queue_id,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !last_avail_idx || !last_used_idx)
>> return -1;
>>
>> *last_avail_idx = dev->virtqueue[queue_id]->last_avail_idx;
>> @@ -805,7 +805,7 @@ int rte_vhost_extern_callback_register(int vid,
>> {
>> struct virtio_net *dev = get_device(vid);
>>
>> - if (!dev)
>> + if (!dev || !ops)
>> return -1;
>>
>> dev->extern_ops = *ops;
>> --
>> 2.17.1
>>