IMHO the TSO stuff has mostly settled down now.  As a result
tcp_pcount_t is now more of a liability in that it reduces the
readability of the code.

So here is a patch to remove it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>