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authorPavel Emelyanov <xemul@openvz.org>2008-01-10 22:37:16 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:01:43 -0800
commit39971554d3469b48154f34257ad4a35081b7ee40 (patch)
treec58af51601f8197d87894a916c8592a8c5555175 /include/net
parent9993e7d313e80bdc005d09c7def91903e0068f07 (diff)
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[NEIGH]: Add a comment describing what a NUD stands for.
When I studied the neighbor code I puzzled over what the NUD can mean for quite a long time. Finally I asked Alexey and he said that this was smth like "neighbor unreachability detection". Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/neighbour.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 09f9fc60a77..a0d42a54cfb 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -26,6 +26,10 @@
#include <linux/sysctl.h>
#include <net/rtnetlink.h>
+/*
+ * NUD stands for "neighbor unreachability detection"
+ */
+
#define NUD_IN_TIMER (NUD_INCOMPLETE|NUD_REACHABLE|NUD_DELAY|NUD_PROBE)
#define NUD_VALID (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE|NUD_PROBE|NUD_STALE|NUD_DELAY)
#define NUD_CONNECTED (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE)