diff --git a/drivers/cxl/core/regs.c b/drivers/cxl/core/regs.c
index 39a129c57d40ee93361aac78f42ce8c14042d28d..6522931df3f734ee5f01c9fc6a06fc094b0c0e19 100644
--- a/drivers/cxl/core/regs.c
+++ b/drivers/cxl/core/regs.c
@@ -7,6 +7,8 @@
 #include <cxlmem.h>
 #include <cxlpci.h>
 
+#include "core.h"
+
 /**
  * DOC: cxl registers
  *
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index ac75554b5d763da282479f8e2331a37b424ad7b4..a3a4f18b25f229ec5cb31c481c60d7821a76bf66 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -218,8 +218,6 @@ int cxl_map_device_regs(struct pci_dev *pdev,
 enum cxl_regloc_type;
 int cxl_find_regblock(struct pci_dev *pdev, enum cxl_regloc_type type,
 		      struct cxl_register_map *map);
-void __iomem *devm_cxl_iomap_block(struct device *dev, resource_size_t addr,
-				   resource_size_t length);
 
 #define CXL_RESOURCE_NONE ((resource_size_t) -1)
 #define CXL_TARGET_STRLEN 20