netdev - Re: [PATCH v1 1/6] net: Generalize udp based tunnel offload

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Date:	Fri, 04 Dec 2015 21:02:46 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Tom Herbert <tom@...bertland.com>
Cc:	"John W. Linville" <linville@...driver.com>,
	Jesse Gross <jesse@...nel.org>,
	David Miller <davem@...emloft.net>,
	Anjali Singhai Jain <anjali.singhai@...el.com>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	Kiran Patil <kiran.patil@...el.com>
Subject: Re: [PATCH v1 1/6] net: Generalize udp based tunnel offload



On Fri, Dec 4, 2015, at 20:59, Hannes Frederic Sowa wrote:
> And then filling out those fields using the offsetof and sizeof of the
> headers, but this seemed to be very difficult a) because they use
> bitmasks (which of course could be converted) or in case of IPv6 a
> schema would have to be specified how to walk down the IPv6 extensions.
> This seems also to be true for NSH. Maybe gcc could help with
> compile-time introspection with bitfields in the future but I doubt that
> for now. Duplicating and maintaining two header structs for one
> tunneling protoco

Seems like I accidentally removed something here:

I wanted to write that maintaining multiple descriptions of tunneling
headers seems not worthwhile for now.

Bye,
Hannes
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