Hi Jiang,
After applied your patch, the iomem tree structure a bit changed
on my machine. The entry of "f0000000-f3ffffff : pnp 00:02" has gone.
This is because the order of insert_resource has changed, in my mind.
After applied your patch, "PCI MMCONFIG 0000" is inserted before
"pnp 00:02", so inserting "pnp 00:02" failed.
* /proc/iomem (before)
...
efee0000-efeecfff : ACPI Tables
efeed000-efefffff : ACPI Non-volatile Storage
eff00000-f3ffffff : reserved
f0000000-f3ffffff : pnp 00:02 <---
f0000000-f13fffff : PCI MMCONFIG 0000 [bus 00-13]
f4000000-f41fffff : PCI Bus 0000:01
f4000000-f41fffff : PCI Bus 0000:02
f4000000-f40fffff : 0000:02:05.0
f4100000-f413ffff : 0000:02:09.0
f4140000-f417ffff : 0000:02:09.1
....
* /proc/iomem (after)
...
efee0000-efeecfff : ACPI Tables
efeed000-efefffff : ACPI Non-volatile Storage
eff00000-f3ffffff : reserved
f0000000-f13fffff : PCI MMCONFIG 0000 [bus 00-13]
f4000000-f41fffff : PCI Bus 0000:01
f4000000-f41fffff : PCI Bus 0000:02
f4000000-f40fffff : 0000:02:05.0
f4100000-f413ffff : 0000:02:09.0
f4140000-f417ffff : 0000:02:09.1
...
Best regards,
Taku Izumi
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