[PATCH 2/8] hw/arm/raspi: Use memory_region_add_subregion() when priority is 0

[Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>]

It is pointless to overlap a memory subregion with priority 0.
Use the simpler memory_region_add_subregion() function.

This patch was produced with the following spatch script:

    @@
    expression region;
    expression offset;
    expression subregion;
    @@
    -memory_region_add_subregion_overlap(region, offset, subregion, 0)
    +memory_region_add_subregion(region, offset, subregion)

Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
---
 hw/arm/bcm2835_peripherals.c | 4 ++--
 hw/arm/raspi.c               | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
index 17207ae07e..f792bd6bb1 100644
--- a/hw/arm/bcm2835_peripherals.c
+++ b/hw/arm/bcm2835_peripherals.c
@@ -160,8 +160,8 @@ static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp)
     for (n = 0; n < 4; n++) {
         memory_region_init_alias(&s->ram_alias[n], OBJECT(s),
                                  "bcm2835-gpu-ram-alias[*]", ram, 0, ram_size);
-        memory_region_add_subregion_overlap(&s->gpu_bus_mr, (hwaddr)n << 30,
-                                            &s->ram_alias[n], 0);
+        memory_region_add_subregion(&s->gpu_bus_mr, (hwaddr)n << 30,
+                                    &s->ram_alias[n]);
     }
 
     /* Interrupt Controller */
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
index 6a510aafc1..3649b75449 100644
--- a/hw/arm/raspi.c
+++ b/hw/arm/raspi.c
@@ -187,7 +187,7 @@ static void raspi_init(MachineState *machine, int version)
     memory_region_allocate_system_memory(&s->ram, OBJECT(machine), "ram",
                                          machine->ram_size);
     /* FIXME: Remove when we have custom CPU address space support */
-    memory_region_add_subregion_overlap(get_system_memory(), 0, &s->ram, 0);
+    memory_region_add_subregion(get_system_memory(), 0, &s->ram);
 
     /* Setup the SOC */
     object_property_add_const_link(OBJECT(&s->soc), "ram", OBJECT(&s->ram),
-- 
2.21.0