--- zzzz-none-000/linux-4.19.183/include/linux/device-mapper.h	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/include/linux/device-mapper.h	2023-06-28 08:54:20.000000000 +0000
@@ -12,6 +12,9 @@
 #include <linux/blkdev.h>
 #include <linux/math64.h>
 #include <linux/ratelimit.h>
+#if defined(CONFIG_BCM_KF_DM_CREATE_BACKPORT)
+#include <linux/dm-ioctl.h>
+#endif //defined(CONFIG_BCM_KF_DM_CREATE_BACKPORT)
 
 struct dm_dev;
 struct dm_target;
@@ -431,6 +434,16 @@
 			  sector_t start);
 union map_info *dm_get_rq_mapinfo(struct request *rq);
 
+#if defined(CONFIG_BCM_KF_DM_CREATE_BACKPORT)
+/*
+ * Device mapper functions to parse and create devices specified by the
+ * parameter "dm-mod.create="
+ */
+int __init dm_early_create(struct dm_ioctl *dmi,
+			   struct dm_target_spec **spec_array,
+			   char **target_params_array);
+#endif //defined(CONFIG_BCM_KF_DM_CREATE_BACKPORT)
+
 struct queue_limits *dm_get_queue_limits(struct mapped_device *md);
 
 /*