diff -pruN ../orig-linux-2.6.18/drivers/ide/ide-lib.c ./drivers/ide/ide-lib.c
--- ../orig-linux-2.6.18/drivers/ide/ide-lib.c	2006-09-20 04:42:06.000000000 +0100
+++ ./drivers/ide/ide-lib.c	2007-01-12 16:07:37.000000000 +0000
@@ -408,10 +408,10 @@ void ide_toggle_bounce(ide_drive_t *driv
 {
 	u64 addr = BLK_BOUNCE_HIGH;	/* dma64_addr_t */
 
-	if (!PCI_DMA_BUS_IS_PHYS) {
-		addr = BLK_BOUNCE_ANY;
-	} else if (on && drive->media == ide_disk) {
-		if (HWIF(drive)->pci_dev)
+	if (on && drive->media == ide_disk) {
+		if (!PCI_DMA_BUS_IS_PHYS)
+			addr = BLK_BOUNCE_ANY;
+		else if (HWIF(drive)->pci_dev)
 			addr = HWIF(drive)->pci_dev->dma_mask;
 	}