[IPV6]: Use bitfields for hop_limit and mcast_hops.
authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Mon, 10 Mar 2008 14:56:55 +0000 (10:56 -0400)
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Tue, 25 Mar 2008 01:24:01 +0000 (10:24 +0900)
Save some bits for future extensions.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

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