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Subject: Re: irq_fpu_usable() is false in ndo_start_xmit() for UDP packets
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 16 Nov 2015 22:28:52 +0100

> I'm making a simpler replacement for IPSec that operates as an
> device driver on the interface level

Someone already did a Linux implemenation of exactly that two decades
ago, we rejected that design and did what we did.