-diff -urN linux-2.6.21.1.old/include/linux/rtnetlink.h linux-2.6.21.1.dev/include/linux/rtnetlink.h
---- linux-2.6.21.1.old/include/linux/rtnetlink.h 2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1.dev/include/linux/rtnetlink.h 2007-05-26 20:46:11.883321560 +0200