… > +++ b/drivers/misc/mikrobus/mikrobus_core.h … > +#ifndef __MIKROBUS_H > +#define __MIKROBUS_H … I suggest to avoid the specification of leading underscores for include guards. See also: https://wiki.sei.cmu.edu/confluence/display/c/DCL37-C.+Do+not+declare+or+define+a+reserved+identifier#DCL37C.Donotdeclareordefineareservedidentifier-NoncompliantCodeExample%28IncludeGuard%29 Regards, Markus
