From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] netlink: not trim skb for mmaped socket when dump
Date: Fri, 29 Jan 2016 20:25:42 -0800 (PST)
Message-ID: <20160129.202542.2079689880141524449.davem@davemloft.net>
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From: Ken-ichirou MATSUZAWA <chamaken@gmail.com>
Date: Fri, 29 Jan 2016 10:45:50 +0900

> We should not trim skb for mmaped socket since its buf size is fixed
> and userspace will read as frame which data equals head. mmaped
> socket will not call recvmsg, means max_recvmsg_len is 0,
> skb_reserve was not called before commit: db65a3aaf29e.
> 
> Fixes: db65a3aaf29e (netlink: Trim skb to alloc size to avoid MSG_TRUNC)
> Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>

Applied, thank you.