haraldwolff/qemu-patch-raspberry4
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memory: Simplify mr_add_subregion() if-else

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This if else is not needed. The previous call to memory_region_add
(whether _overlap or not) will always set priority and may_overlap
to desired values. And its not possible to get here without having
called memory_region_add_subregion due to the null guard on parent.
So we can just directly call memory_region_add_subregion_common.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Crosthwaite 2014-05-12 01:13:47 -07:00 committed by Paolo Bonzini
parent 4dc5615223
commit 3fb5bf5730
1 changed files with 1 additions and 7 deletions
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8
memory.c
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@ -1514,8 +1514,6 @@ void memory_region_set_enabled(MemoryRegion *mr, bool enabled)
void memory_region_set_address(MemoryRegion *mr, hwaddr addr)
{
MemoryRegion *parent = mr->parent;
int priority = mr->priority;
bool may_overlap = mr->may_overlap;
if (addr == mr->addr || !parent) {
mr->addr = addr;
@ -1525,11 +1523,7 @@ void memory_region_set_address(MemoryRegion *mr, hwaddr addr)
memory_region_transaction_begin();
memory_region_ref(mr);
memory_region_del_subregion(parent, mr);
if (may_overlap) {
memory_region_add_subregion_overlap(parent, addr, mr, priority);
} else {
memory_region_add_subregion(parent, addr, mr);
}
memory_region_add_subregion_common(parent, addr, mr);
memory_region_unref(mr);
memory_region_transaction_commit();
}