iwlwifi: support 64 bit DMA masks

This patch adds consistent DMA masks for 64 bit

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 6309f08c3a13..028523af0104 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -7440,13 +7440,19 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
         pci_set_master(pdev);
 
-        err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+        err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
         if (!err)
-                err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+                err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+        if (err) {
+                err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+                if (!err)
+                        err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+                /* both attempts failed: */
                 if (err) {
-                        printk(KERN_WARNING DRV_NAME
-                                ": No suitable DMA available.\n");
+                        printk(KERN_WARNING "%s: No suitable DMA available.\n",
+                                DRV_NAME);
                         goto out_pci_disable_device;
+                }
         }
 
         err = pci_request_regions(pdev, DRV_NAME);