Hi Dave:

Here is a patch that replaces all occurrences of dst_pmtu in the TCP
stack.  As a result we no longer need ext2_header_len.

This has a nice synergetic effect with Arnaldo's latest change to
linux/tcp.h :)

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

I'll be removing other users of dst->path/dst_pmtu next.

Cheers,
-- 
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