diff --git a/sys/kern/subr_xxx.c b/sys/kern/subr_xxx.c
index 094b67c22fc4..7eb169c08a48 100644
--- a/sys/kern/subr_xxx.c
+++ b/sys/kern/subr_xxx.c
@@ -51,17 +51,6 @@ eopnotsupp()
 	return (EOPNOTSUPP);
 }
 
-/*
- * Return error for an inval operation
- * on a specific object or file type.
- */
-int
-einval()
-{
-
-	return (EINVAL);
-}
-
 /*
  * Generic null operation, always returns success.
  */
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
index 37ace10d2b1a..60e2a33914ae 100644
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -113,7 +113,6 @@ void	Debugger __P((const char *msg));
 int	dumpstatus __P((vm_offset_t addr, off_t count));
 int	nullop __P((void));
 int	eopnotsupp __P((void));
-int	einval __P((void));
 int	seltrue __P((dev_t dev, int which, struct thread *td));
 int	ureadc __P((int, struct uio *));
 void	*hashinit __P((int count, struct malloc_type *type, u_long *hashmask));