netdev - Re: [PATCH] Set DF bit for IPv4 GRE tunnels with fixed TTL

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Message-Id: <20151206.223714.1293196518780536858.davem@davemloft.net>
Date:	Sun, 06 Dec 2015 22:37:14 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	konstantin@...myak.com
Cc:	netdev@...r.kernel.org, hannes@...essinduktion.org,
	pshelar@...ira.com
Subject: Re: [PATCH] Set DF bit for IPv4 GRE tunnels with fixed TTL

From: Konstantin Shemyak <konstantin@...myak.com>
Date: Sat, 5 Dec 2015 22:55:13 +0200

> The DF bit on IPv4 GRE tunnels with fixed TTL is enforced in order
> to prevent networking loops. This was the original behavior of GRE
> tunnels, lost in the refactoring.
> 
> Signed-off-by: Konstantin Shemyak <konstantin@...myak.com>

Like Pravin said, ip_tunnel_ioctl() does this already, the code
you are adding is superfluous.
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