diff --git a/arch/arm64/include/asm/mem_encrypt.h b/arch/arm64/include/asm/mem_encrypt.h
index a2a1eeb36d4b..314b2b52025f 100644
--- a/arch/arm64/include/asm/mem_encrypt.h
+++ b/arch/arm64/include/asm/mem_encrypt.h
@@ -4,6 +4,8 @@
 
 #include <asm/rsi.h>
 
+struct device;
+
 struct arm64_mem_crypt_ops {
 	int (*encrypt)(unsigned long addr, int numpages);
 	int (*decrypt)(unsigned long addr, int numpages);
diff --git a/arch/arm64/include/asm/rsi_cmds.h b/arch/arm64/include/asm/rsi_cmds.h
index e6a211001bd3..2c8763876dfb 100644
--- a/arch/arm64/include/asm/rsi_cmds.h
+++ b/arch/arm64/include/asm/rsi_cmds.h
@@ -7,6 +7,8 @@
 #define __ASM_RSI_CMDS_H
 
 #include <linux/arm-smccc.h>
+#include <linux/string.h>
+#include <asm/memory.h>
 
 #include <asm/rsi_smc.h>