Author: Julia Lawall <julia@diku.dk> for_each_node_by_name binds its first argument to a non-null value, and thus any null test on the value of that argument is superfluous. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ iterator I; expression x,E; @@ I(x,…) { } // Signed-off-by: Julia Lawall Signed-off-by: Benjamin Herrenschmidt — …