From: Christoph Hellwig <hch@lst.de>
Date: Wed, 13 Feb 2019 07:01:02 +0000 (+0100)
Subject: net: pasemi: set a 64-bit DMA mask on the DMA device
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=74ebe3e733b791f37415b3a1b917ee5035bc7364;p=linux.git

net: pasemi: set a 64-bit DMA mask on the DMA device

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 <chzigotzky@xenosoft.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index d210415545071..a5bf46310f60d 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) {