From: roopa <roopa@cumulusnetworks.com>
To: David Miller <davem@davemloft.net>
Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org, jhs@mojatatu.com,
tgraf@suug.ch, nicolas.dichtel@6wind.com
Subject: Re: [PATCH net-next v5] rtnetlink: add new RTM_GETSTATS message to dump link stats
Date: Mon, 18 Apr 2016 19:30:02 -0700 [thread overview]
Message-ID: <5715982A.7000801@cumulusnetworks.com> (raw)
In-Reply-To: <20160418.205755.87909888849343438.davem@davemloft.net>
On 4/18/16, 5:57 PM, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Mon, 18 Apr 2016 14:35:56 -0700
>
>> On Mon, 2016-04-18 at 14:10 -0700, Roopa Prabhu wrote:
>>
>>> + if (filter_mask & IFLA_STATS_FILTER_BIT(IFLA_STATS_LINK_64)) {
>>> + struct rtnl_link_stats64 *sp;
>>> +
>>> + attr = nla_reserve(skb, IFLA_STATS_LINK_64,
>>> + sizeof(struct rtnl_link_stats64));
>>> + if (!attr)
>>> + goto nla_put_failure;
>>> +
>>> + sp = nla_data(attr);
>> Are you sure we have a guarantee that sp is aligned to u64 fields ?
>>
>> x86 does not care, but some arches would have a potential misalign
>> access here.
> I'll do some testing on sparc and deal with any fallout.
Thanks David. I will be happy to respin if you see problems.
next prev parent reply other threads:[~2016-04-19 2:30 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-18 21:10 [PATCH net-next v5] rtnetlink: add new RTM_GETSTATS message to dump link stats Roopa Prabhu
2016-04-18 21:35 ` Eric Dumazet
2016-04-19 0:57 ` David Miller
2016-04-19 1:48 ` David Miller
2016-04-19 2:22 ` Eric Dumazet
2016-04-19 2:40 ` Roopa Prabhu
2016-04-19 3:49 ` David Miller
2016-04-19 3:52 ` David Miller
2016-04-19 10:09 ` Johannes Berg
2016-04-19 10:48 ` Emmanuel Grumbach
2016-04-19 18:23 ` David Miller
2016-04-19 19:41 ` Johannes Berg
2016-04-20 1:53 ` David Ahern
2016-04-20 7:32 ` Johannes Berg
2016-04-20 12:48 ` Jiri Benc
2016-04-20 13:17 ` Johannes Berg
2016-04-20 13:34 ` Jiri Benc
2016-04-20 20:13 ` Johannes Berg
2016-04-19 2:30 ` roopa [this message]
2016-04-19 3:41 ` David Miller
2016-04-19 4:17 ` Eric Dumazet
2016-04-19 4:32 ` Eric Dumazet
2016-04-19 5:03 ` David Miller
2016-04-19 18:31 ` David Miller
2016-04-19 18:45 ` Eric Dumazet
2016-04-19 18:47 ` Eric Dumazet
2016-04-19 19:08 ` Nicolas Dichtel
2016-04-19 23:50 ` David Miller
2016-04-20 3:54 ` Roopa Prabhu
2016-04-20 8:57 ` [PATCH net-next 0/4] libnl: enhance API to ease 64bit alignment for attribute Nicolas Dichtel
2016-04-20 8:57 ` [PATCH net-next 1/4] netlink: fix test alignment in nla_align_64bit() Nicolas Dichtel
2016-04-20 9:33 ` Eric Dumazet
2016-04-20 9:44 ` Nicolas Dichtel
2016-04-20 9:57 ` Eric Dumazet
2016-04-20 10:14 ` Nicolas Dichtel
2016-04-20 14:31 ` [PATCH net-next] net: fix HAVE_EFFICIENT_UNALIGNED_ACCESS typos Eric Dumazet
2016-04-20 15:03 ` David Miller
2016-04-20 8:57 ` [PATCH net-next 2/4] libnl: add more helpers to align attribute on 64-bit Nicolas Dichtel
2016-04-20 8:57 ` [PATCH net-next 3/4] ipmr: align RTA_MFC_STATS " Nicolas Dichtel
2016-04-20 8:57 ` [PATCH net-next 4/4] ip6mr: " Nicolas Dichtel
2016-04-21 16:58 ` [PATCH net-next v2 0/4] libnl: enhance API to ease 64bit alignment for attribute Nicolas Dichtel
2016-04-21 16:58 ` [PATCH net-next v2 1/4] libnl: add more helpers to align attributes on 64-bit Nicolas Dichtel
2016-04-21 16:58 ` [PATCH net-next v2 2/4] rtnl: use the new API to align IFLA_STATS* Nicolas Dichtel
2016-04-21 16:58 ` [PATCH net-next v2 3/4] ipmr: align RTA_MFC_STATS on 64-bit Nicolas Dichtel
2016-04-21 16:58 ` [PATCH net-next v2 4/4] ip6mr: " Nicolas Dichtel
2016-04-21 18:28 ` [PATCH net-next v2 0/4] libnl: enhance API to ease 64bit alignment for attribute David Miller
2016-04-21 22:00 ` Nicolas Dichtel
2016-04-22 5:31 ` David Miller
2016-04-19 19:05 ` [PATCH net-next v5] rtnetlink: add new RTM_GETSTATS message to dump link stats Roopa Prabhu
2016-04-19 22:49 ` David Miller
2016-04-20 3:53 ` Roopa Prabhu
2016-04-19 4:43 ` Roopa Prabhu
2016-04-19 7:45 ` Nicolas Dichtel
2016-04-19 16:00 ` David Miller
2016-04-19 8:26 ` Nicolas Dichtel
2016-04-19 19:55 ` Paul Moore
2016-04-19 20:40 ` Roopa Prabhu
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