Author: Peter Senna Tschudin <peter.senna@gmail.com> The variable vco_select is only assigned the values true and false. Change its 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 b = \(true\|false\) Signed-off-by: Peter Senna …