Re: [Qemu-devel] [PATCH 3/3] memory-device: break the loop if tmp exceed the hinted range

[David Hildenbrand]

On 28.07.19 15:13, Wei Yang wrote:
> The memory-device list built by memory_device_build_list is ordered by
> its address, this means if the tmp range exceed the hinted range, all
> the following range will not overlap with it.
> 
> Signed-off-by: Wei Yang <address@hidden>
> ---
>  hw/mem/memory-device.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
> index 413b514586..aea47ab3e8 100644
> --- a/hw/mem/memory-device.c
> +++ b/hw/mem/memory-device.c
> @@ -180,7 +180,7 @@ static uint64_t memory_device_get_free_addr(MachineState 
> *ms,
>                  range_make_empty(&new);
>                  break;
>              }
> -        } else if (!hint) {
> +        } else if (!hint || range_lob(&tmp) > range_upb(&new)) {
>              break;
>          }
>      }
> 

Lower bound is inclusive, upper bound is exclusive. Shouldn't this be

range_lob(&tmp) >= range_upb(&new)

Also, I wonder if patch #2 is now really needed?

-- 

Thanks,

David / dhildenb