diff mbox

pci: print out DMA mask info

Message ID 4B0C9468.4070504@kernel.org (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Yinghai Lu Nov. 25, 2009, 2:20 a.m. UTC
None
diff mbox

Patch

Index: linux-2.6/drivers/pci/pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci.c
+++ linux-2.6/drivers/pci/pci.c
@@ -2101,6 +2101,8 @@  pci_set_dma_mask(struct pci_dev *dev, u6
 		return -EIO;
 
 	dev->dma_mask = mask;
+	dev_printk(KERN_DEBUG, &dev->dev, "using %dbit DMA mask\n",
+		 fls64(mask));
 
 	return 0;
 }
@@ -2112,6 +2114,8 @@  pci_set_consistent_dma_mask(struct pci_d
 		return -EIO;
 
 	dev->dev.coherent_dma_mask = mask;
+	dev_printk(KERN_DEBUG, &dev->dev, "using %dbit consistent DMA mask\n",
+		 fls64(mask));
 
 	return 0;
 }