This header uses 'bool', but it does not include any header by itself. So, it could cause unknown type name error, depending on the header include order, although probably <linux/types.h> has been included by someone else. Include <linux/types.h> to make it self-contained. Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- include/linux/pinctrl/pinconf.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h index eb16a1e0bcfa..f8a8215e9021 100644 --- a/include/linux/pinctrl/pinconf.h +++ b/include/linux/pinctrl/pinconf.h @@ -11,6 +11,8 @@ #ifndef __LINUX_PINCTRL_PINCONF_H #define __LINUX_PINCTRL_PINCONF_H +#include <linux/types.h> + struct pinctrl_dev; struct seq_file; -- 2.17.1