The pasemi driver never set a DMA mask, and given that the powerpc DMA mapping routines never check it this worked ok so far. But the generic dma-direct code which I plan to switch on for powerpc checks the DMA mask and fails unsupported mapping requests, so we need to make sure the proper 64-bit mask is set.
Reported-by: Christian Zigotzky <chzigot...@xenosoft.de> Signed-off-by: Christoph Hellwig <h...@lst.de> Tested-by: Christian Zigotzky <chzigot...@xenosoft.de> --- drivers/net/ethernet/pasemi/pasemi_mac.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c index d21041554507..a5bf46310f60 100644 --- a/drivers/net/ethernet/pasemi/pasemi_mac.c +++ b/drivers/net/ethernet/pasemi/pasemi_mac.c @@ -1716,6 +1716,7 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = -ENODEV; goto out; } + dma_set_mask(&mac->dma_pdev->dev, DMA_BIT_MASK(64)); mac->iob_pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL); if (!mac->iob_pdev) { -- 2.20.1