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 ? Ben. > > Bisected to: > > commit 65a21b71f948406201e4f62e41f06513350ca390 > Author: Christoph Hellwig <hch@xxxxxx> > Date: Wed Feb 13 08:01:26 2019 +0100 > > powerpc/dma: remove dma_nommu_dma_supported > > This function is largely identical to the generic version used > everywhere else. Replace it with the generic version. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Tested-by: Christian Zigotzky <chzigotzky@xxxxxxxxxxx> > Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> > > A.
