diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index 7c9e4bb84059..8c9c6054dec1 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -17,7 +17,7 @@ extern u64  e820_update_range(u64 start, u64 size, unsigned old_type, unsigned n
 extern u64  e820_remove_range(u64 start, u64 size, unsigned old_type, int checktype);
 extern void update_e820(void);
 extern void e820_setup_gap(void);
-extern void parse_e820_ext(u64 phys_addr, u32 data_len);
+extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
 extern unsigned long e820_end_of_ram_pfn(void);
 extern unsigned long e820_end_of_low_ram_pfn(void);
 extern u64  early_reserve_e820(u64 sizet, u64 align);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 5f8ba898e29d..d24c0f2b4a1c 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -665,7 +665,7 @@ __init void e820_reallocate_tables(void)
  * the remaining (if any) entries are passed via the SETUP_E820_EXT node of
  * struct setup_data, which is parsed here.
  */
-void __init parse_e820_ext(u64 phys_addr, u32 data_len)
+void __init e820__memory_setup_extended(u64 phys_addr, u32 data_len)
 {
 	int entries;
 	struct e820_entry *extmap;
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 838e4b5707ae..4451c3a818db 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -426,7 +426,7 @@ static void __init parse_setup_data(void)
 
 		switch (data_type) {
 		case SETUP_E820_EXT:
-			parse_e820_ext(pa_data, data_len);
+			e820__memory_setup_extended(pa_data, data_len);
 			break;
 		case SETUP_DTB:
 			add_dtb(pa_data);