rt2x00: Restrict DMA to 32-bit addresses.

None of the rt2x00 PCI devices support 64-bit DMA addresses (they all
only accept 32-bit buffer addresses). Hence it makes no sense to try to
enable 64-bit DMA addresses. Only try to enable 32-bit DMA addresses.

Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 971af25..60893de 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -412,8 +412,7 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
        if (pci_set_mwi(pci_dev))
                ERROR_PROBE("MWI not available.\n");
 
-       if (pci_set_dma_mask(pci_dev, DMA_64BIT_MASK) &&
-           pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
+       if (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
                ERROR_PROBE("PCI DMA not supported.\n");
                retval = -EIO;
                goto exit_disable_device;