Re: [PATCH] arm64: dts: marvell: armada-37xx: Set linux,pci-domain to zero

[Pali Rohár]

On Saturday 17 April 2021 17:19:38 Andrew Lunn wrote:
> > 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

Great! So number allocation is already implemented in kernel (via radix trees).