pc-dimm: remove pc_dimm_get_free_slot() from header

Not used outside of pc-dimm.c and there shouldn't be other users. If
other devices (e.g. memory devices) ever have to also use slots, then we
will have to factor this out.
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20180619134141.29478-5-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

hw/mem/pc-dimm.c

@@ -27,6 +27,8 @@
 #include "sysemu/numa.h"
 #include "trace.h"
 
+static int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);
+
 void pc_dimm_plug(DeviceState *dev, MachineState *machine, uint64_t align,
                   Error **errp)
 {
@@ -111,7 +113,7 @@ static int pc_dimm_slot2bitmap(Object *obj, void *opaque)
     return 0;
 }
 
-int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp)
+static int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp)
 {
     unsigned long *bitmap;
     int slot = 0;

include/hw/mem/pc-dimm.h

@@ -76,8 +76,6 @@ typedef struct PCDIMMDeviceClass {
     MemoryRegion *(*get_vmstate_memory_region)(PCDIMMDevice *dimm);
 } PCDIMMDeviceClass;
 
-int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);
-
 void pc_dimm_plug(DeviceState *dev, MachineState *machine, uint64_t align,
                   Error **errp);
 void pc_dimm_unplug(DeviceState *dev, MachineState *machine);