Author: Peter Senna Tschudin <peter.senna@gmail.com> The variable rc is only assigned the values true and false. The function bnx2x_prev_is_path_marked already returns bool. Change rc type to bool. The simplified semantic patch that find this problem is as follows (http://coccinelle.lip6.fr/): @exists@ type T; identifier b; @@ – T + bool b = …; … when any …