From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: [PATCH nft 0/3] fix ether address formatting
Date: Fri,  9 Sep 2016 14:43:13 +0200
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ether addresses were listed as HOST_ENDIAN.
This did not show up for plain payload expressions because
the payload expression postprocessing contained a byteorder
conversion for HOST_ENDIAN.

It also did not show up when testing payload statements
because test suite conveniently used ff:ff:ff ...

So,
1. switch the data type to BIG_ENDIAN
2. fix test case to catch bogus formatting
3. remove the payload byte order conversion, I do not think
   it is required (all tests pass without it after patch #1).