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[ Upstream commite2b224abd9] There is a shift wrapping bug in this code so anything thing above 31 will return false. Fixes:35c55c9877("tipc: add neighbor monitoring framework") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>