From 8f2ddaac302a8ca364cb04efb19cd3b5cd058910 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 21 Mar 2015 14:14:03 +1100
Subject: [PATCH] netlink: Remove netlink_compare_arg.trailer

Instead of computing the offset from trailer, this patch computes
netlink_compare_arg_len from the offset of portid and then adds 4
to it.  This allows trailer to be removed.

Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed