From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] sctp: change to use uint<size>_t in uapi
 sctp.h
Date: Tue, 14 Feb 2017 11:26:04 -0500 (EST)
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From: Xin Long <lucien.xin@gmail.com>
Date: Tue, 14 Feb 2017 16:23:48 +0800

> All structures in uapi sctp.h are exported for userspace, their members'
> types should use uint<size>_t instead of __u<size>.

This is not true.

__u<size> is in fact preferred for userspace exported datastructures.