module: zfs: fix unused, remove argsused

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12844

module/zfs/vdev.c

@@ -263,11 +263,12 @@ vdev_get_mg(vdev_t *vd, metaslab_class_t *mc)
 		return (vd->vdev_mg);
 }
 
-/* ARGSUSED */
 void
 vdev_default_xlate(vdev_t *vd, const range_seg64_t *logical_rs,
     range_seg64_t *physical_rs, range_seg64_t *remain_rs)
 {
+	(void) vd, (void) remain_rs;
+
 	physical_rs->rs_start = logical_rs->rs_start;
 	physical_rs->rs_end = logical_rs->rs_end;
 }
@@ -1778,6 +1779,7 @@ vdev_uses_zvols(vdev_t *vd)
 static boolean_t
 vdev_default_open_children_func(vdev_t *vd)
 {
+	(void) vd;
 	return (B_TRUE);
 }
 
@@ -2859,6 +2861,8 @@ boolean_t
 vdev_default_need_resilver(vdev_t *vd, const dva_t *dva, size_t psize,
     uint64_t phys_birth)
 {
+	(void) dva, (void) psize;
+
 	/* Set by sequential resilver. */
 	if (phys_birth == TXG_UNKNOWN)
 		return (B_TRUE);
@@ -4308,6 +4312,8 @@ vdev_get_child_stat(vdev_t *cvd, vdev_stat_t *vs, vdev_stat_t *cvs)
 static void
 vdev_get_child_stat_ex(vdev_t *cvd, vdev_stat_ex_t *vsx, vdev_stat_ex_t *cvsx)
 {
+	(void) cvd;
+
 	int t, b;
 	for (t = 0; t < ZIO_TYPES; t++) {
 		for (b = 0; b < ARRAY_SIZE(vsx->vsx_disk_histo[0]); b++)
@@ -4743,6 +4749,7 @@ void
 vdev_space_update(vdev_t *vd, int64_t alloc_delta, int64_t defer_delta,
     int64_t space_delta)
 {
+	(void) defer_delta;
 	int64_t dspace_delta;
 	spa_t *spa = vd->vdev_spa;
 	vdev_t *rvd = spa->spa_root_vdev;