From: Eric Dumazet <[email protected]>
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.
