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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v12 net-next 03/11] bpf: add
 lookup/update/delete/iterate methods to BPF maps
Date: Tue, 16 Sep 2014 17:49:01 -0400 (EDT)
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From: Alexei Starovoitov <ast@plumgrid.com>
Date: Tue, 16 Sep 2014 14:23:27 -0700

> no compat layer and type checking will be done
> by syscall wrappers. Ok?

Why are you against using strong typing just for everything other
than the user pointer blobs?

I don't understand the resistence to my suggestion to just use
aligned_u64 instead of "void __user *" in the union members.