net: add doc for in4_pton()
authorAmerigo Wang <amwang@redhat.com>
Thu, 11 Oct 2012 21:06:17 +0000 (21:06 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 12 Oct 2012 17:56:52 +0000 (13:56 -0400)
It is not easy to use in4_pton() correctly without reading
its definition, so add some doc for it.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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