Resolve newly revealed unused vars and symbols caused by topic branch.

cmd/zfs/zfs_main.c

@@ -817,7 +817,9 @@ out:
 static int
 destroy_callback(zfs_handle_t *zhp, void *data)
 {
+#ifdef HAVE_ZPL
 	destroy_cbdata_t *cbp = data;
+#endif
 
 	/*
 	 * Ignore pools (which we've already flagged as an error before getting
@@ -4152,7 +4154,9 @@ main(int argc, char **argv)
 {
 	int ret;
 	int i;
+#ifdef HAVE_ZPL
 	char *progname;
+#endif
 	char *cmdname;
 
 	(void) setlocale(LC_ALL, "");

cmd/zpool/zpool_main.c

@@ -697,7 +697,9 @@ zpool_do_create(int argc, char **argv)
 	    (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
 	    strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
 		char buf[MAXPATHLEN];
+#ifdef HAVE_ZPL
 		DIR *dirp;
+#endif
 
 		if (mountpoint && mountpoint[0] != '/') {
 			(void) fprintf(stderr, gettext("invalid mountpoint "

module/zfs/zfs_ioctl.c

@@ -616,6 +616,7 @@ zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
 	return (error);
 }
 
+#ifdef HAVE_ZPL
 static int
 zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
 {
@@ -627,6 +628,7 @@ zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
 	}
 	return (error);
 }
+#endif /* HAVE_ZPL */
 
 /*
  * Policy for pool operations - create/destroy pools, add vdevs, etc.  Requires
@@ -1869,6 +1871,7 @@ zfs_ioc_remove_minor(zfs_cmd_t *zc)
 	return (zvol_remove_minor(zc->zc_name));
 }
 
+#ifdef HAVE_ZPL
 /*
  * Search the vfs list for a specified resource.  Returns a pointer to it
  * or NULL if no suitable entry is found. The caller of this routine
@@ -1877,7 +1880,6 @@ zfs_ioc_remove_minor(zfs_cmd_t *zc)
 static vfs_t *
 zfs_get_vfs(const char *resource)
 {
-#ifdef HAVE_ZPL
 	struct vfs *vfsp;
 	struct vfs *vfs_found = NULL;
 
@@ -1893,10 +1895,8 @@ zfs_get_vfs(const char *resource)
 	} while (vfsp != rootvfs);
 	vfs_list_unlock();
 	return (vfs_found);
-#else
-	return NULL;
-#endif /* HAVE_ZPL */
 }
+#endif /* HAVE_ZPL */
 
 /* ARGSUSED */
 static void