diff --git a/cpu-all.h b/cpu-all.h
index e8cccc6..0df54b6 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -917,8 +917,6 @@
                            CPUWriteMemoryFunc **mem_write,
                            void *opaque);
 void cpu_unregister_io_memory(int table_address);
-CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index);
-CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index);
 
 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
                             int len, int is_write);
diff --git a/exec.c b/exec.c
index 23013fb..2effd04 100644
--- a/exec.c
+++ b/exec.c
@@ -3016,8 +3016,7 @@
 
 /* mem_read and mem_write are arrays of functions containing the
    function to access byte (index 0), word (index 1) and dword (index
-   2). Functions can be omitted with a NULL function pointer. The
-   registered functions may be modified dynamically later.
+   2). Functions can be omitted with a NULL function pointer.
    If io_index is non zero, the corresponding io zone is
    modified. If it is zero, a new io zone is allocated. The return
    value can be used with cpu_register_physical_memory(). (-1) is
@@ -3061,16 +3060,6 @@
     io_mem_used[io_index] = 0;
 }
 
-CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index)
-{
-    return io_mem_write[io_index >> IO_MEM_SHIFT];
-}
-
-CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index)
-{
-    return io_mem_read[io_index >> IO_MEM_SHIFT];
-}
-
 #endif /* !defined(CONFIG_USER_ONLY) */
 
 /* physical memory access (slow version, mainly for debug) */