extern int  sanitize_e820_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map);
 extern u64  e820_update_range(u64 start, u64 size, unsigned old_type, unsigned new_type);
 extern u64  e820_remove_range(u64 start, u64 size, unsigned old_type, int checktype);
-extern void update_e820(void);
+extern void e820__update_table_print(void);
 extern void e820_setup_gap(void);
 extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
 extern unsigned long e820_end_of_ram_pfn(void);
 
 void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)
 {
        e820_add_region(addr, size, E820_ACPI);
-       update_e820();
+       e820__update_table_print();
 }
 
                        pr_info("e820: reserve [mem %#010Lx-%#010Lx] for GART\n",
                                aper_base, aper_base + aper_size - 1);
                        e820_add_region(aper_base, aper_size, E820_RESERVED);
-                       update_e820();
+                       e820__update_table_print();
                }
        }
 
 
                        WARN_ON(1);
 
                pr_info("update e820 for mtrr\n");
-               update_e820();
+               e820__update_table_print();
 
                return 1;
        }
 
        return real_removed_size;
 }
 
-void __init update_e820(void)
+void __init e820__update_table_print(void)
 {
        if (sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries))
                return;
        e820_print_map("modified");
 }
 
-static void __init update_e820_table_firmware(void)
+static void __init e820__update_table_firmware(void)
 {
        sanitize_e820_table(e820_table_firmware->entries, ARRAY_SIZE(e820_table_firmware->entries), &e820_table_firmware->nr_entries);
 }
        if (addr) {
                e820_update_range_firmware(addr, size, E820_RAM, E820_RESERVED);
                pr_info("e820: update e820_table_firmware for e820__memblock_alloc_reserved()\n");
-               update_e820_table_firmware();
+               e820__update_table_firmware();
        }
 
        return addr;