module: mark arguments used

Reviewed-by: Alejandro Colomar <alx.manpages@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13110

module/os/freebsd/spl/callb.c

@@ -338,10 +338,10 @@ callb_generic_cpr(void *arg, int code)
  * The generic callback function associated with kernel threads which
  * are always considered safe.
  */
-/* ARGSUSED */
 boolean_t
 callb_generic_cpr_safe(void *arg, int code)
 {
+	(void) arg, (void) code;
 	return (B_TRUE);
 }
 /*

module/os/freebsd/spl/spl_zlib.c

@@ -40,19 +40,17 @@ __FBSDID("$FreeBSD$");
 #include <sys/kobj.h>
 
 
-/*ARGSUSED*/
 static void *
 zcalloc(void *opaque, uint_t items, uint_t size)
 {
-
+	(void) opaque;
 	return (malloc((size_t)items*size, M_SOLARIS, M_NOWAIT));
 }
 
-/*ARGSUSED*/
 static void
 zcfree(void *opaque, void *ptr)
 {
-
+	(void) opaque;
 	free(ptr, M_SOLARIS);
 }