lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 13 Feb 2019 08:01:02 +0100
From:   Christoph Hellwig <>
To:     Benjamin Herrenschmidt <>,
        Paul Mackerras <>,
        Michael Ellerman <>,
        Olof Johansson <>
        Christian Zigotzky <>
Subject: [PATCH 01/32] 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 <>
Signed-off-by: Christoph Hellwig <>
Tested-by: Christian Zigotzky <>
 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) {

Powered by blists - more mailing lists