Privatize register_ioport_read/write

No more users outside of ioport.c.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/exec/ioport.h

@@ -39,10 +39,6 @@ typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
 typedef void (IOPortDestructor)(void *opaque);
 
 void ioport_register(IORange *iorange);
-int register_ioport_read(pio_addr_t start, int length, int size,
-                         IOPortReadFunc *func, void *opaque);
-int register_ioport_write(pio_addr_t start, int length, int size,
-                          IOPortWriteFunc *func, void *opaque);
 void isa_unassign_ioport(pio_addr_t start, int length);
 bool isa_is_ioport_assigned(pio_addr_t start);
 

ioport.c

@@ -139,8 +139,8 @@ static int ioport_bsize(int size, int *bsize)
 }
 
 /* size is the word size in byte */
-int register_ioport_read(pio_addr_t start, int length, int size,
-                         IOPortReadFunc *func, void *opaque)
+static int register_ioport_read(pio_addr_t start, int length, int size,
+                                IOPortReadFunc *func, void *opaque)
 {
     int i, bsize;
 
@@ -159,8 +159,8 @@ int register_ioport_read(pio_addr_t start, int length, int size,
 }
 
 /* size is the word size in byte */
-int register_ioport_write(pio_addr_t start, int length, int size,
-                          IOPortWriteFunc *func, void *opaque)
+static int register_ioport_write(pio_addr_t start, int length, int size,
+                                 IOPortWriteFunc *func, void *opaque)
 {
     int i, bsize;