Re: [Qemu-ppc] [Qemu-devel] [RFC PATCH 2/5] ppc: Express dependencies of the 'prep' and '40p' machines with kconfig

[Thomas Huth]

On 2019-01-30 11:25, Thomas Huth wrote:
> On 2019-01-30 11:17, Paolo Bonzini wrote:
>> On 30/01/19 10:43, Thomas Huth wrote:
>>> +    select LSI_SCSI_PCI
>>
>> Should NE2000_ISA and LSI_SCSI_PCI be handled the same?  Either rely on
>> "default y" for both, or select both (I think I prefer the former).
> 
> Yes. IMHO we should use "select XXX" if the machine has a hard
> requirement for a device, and "default y" if it can also somehow work
> without the device. In this case, I did not look carefully enough, since
> it is apparently possible to use the 40p machine also without the LSI
> controller when you specify "-nodefaults". So I'll remove this in v2 and
> rely on the "default y" instead.

Scratch that. The "select LSI_SCSI_PCI" is currently a hard requirement
here, otherwise I get a linker error like this:

 hw/ppc/prep.c:705: undefined reference to `lsi53c8xx_handle_legacy_cmdline'

So I think we should keep this patch in its current shape. Of course
we still can clean that up later, but this should not be part of the
initial Kconfig patch series (which is already big enough).

 Thomas