<dec f='src/src/sys/sys/mbuf.h' l='401'/>
<use f='src/src/sys/kern/uipc_socket.c' l='2189' u='c'/>
<use f='src/src/sys/netinet/ip_input.c' l='1227' u='c'/>
<use f='src/src/sys/netinet/ip_output.c' l='1355' u='c'/>
