Re: [PATCH] arm64: dts: marvell: armada-37xx: Set linux,pci-domain to zero
From: Andrew Lunn
Date: Sat Apr 17 2021 - 11:20:15 EST
> Currently this code is implemented in pci_bus_find_domain_nr() function.
> IIRC domain number is 16bit integer, so plain bitmap would consume 8 kB
> of memory. I'm not sure if it is fine or some other tree-based structure
> for allocated domain numbers is needed.
Hi Pali
Have a look at lib/idr.c
Andrew