From: Ron Rindjunsky <ron.rindjunsky@intel.com>
Date: Mon, 21 Apr 2008 22:41:59 +0000 (-0700)
Subject: iwlwifi: support 64 bit DMA masks
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=cc2a8ea82ef869532cb7764b9eac30338773fe88;p=deliverable%2Flinux.git

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>
---

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);