[BISECTED REGRESSION] b43legacy broken on G4 PowerBook

[Aaro Koskinen]

Hi,

On Thu, Jun 06, 2019 at 10:54:51AM +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2019-06-06 at 01:50 +0300, Aaro Koskinen wrote:
> > Hi,
> > 
> > When upgrading from v5.0 -> v5.1 on G4 PowerBook, I noticed WLAN does
> > not work anymore:
> > 
> > [   42.004303] b43legacy-phy0: Loading firmware version 0x127, patch level 14 (2005-04-18 02:36:27)
> > [   42.184837] b43legacy-phy0 debug: Chip initialized
> > [   42.184873] b43legacy-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask
> > 
> > The same happens with the current mainline.
> 
> How much RAM do you have ?

The system has 1129 MB RAM. Booting with mem=1G makes it work.

A.