From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: [PATCH net-next] net: Reflect RX hash for transmit
Date: Sun, 15 Feb 2015 20:59:29 +0100
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To: Tom Herbert <therbert@google.com>, davem@davemloft.net,
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On 02/15/2015 07:37 PM, Tom Herbert wrote:
> This patch allows a driver to request that the receive hash it provides
> to the stack is reflected back in skb->hash for packets transmitted
> on the associated connection.
[...]
> +	if (unlikely(skb->reflect_hash && sk->sk_txhash != skb->hash))
> +		sk->sk_txhash = skb->hash;

Is there also an initial user setting this somewhere?