Author: Julia Lawall <Julia.Lawall@lip6.fr> The result of netdev_priv is already implicitly cast to the type of the left side of the assignment. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // @@ type T; T *x; @@ x = – (T *) netdev_priv(…) // Signed-off-by: Julia Lawall Signed-off-by: Greg Kroah-Hartman — drivers/tty/n_gsm.c …