linux-kernel - [PATCH 5/8] ide: always set DMA masks in ide_pci_setup

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Date:	Sun, 06 Jan 2008 18:02:55 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/8] ide: always set DMA masks in ide_pci_setup_ports()

Always set DMA masks in ide_pci_setup_ports() to make sure that the valid
masks for a host are set.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
+34 bytes
 drivers/ide/setup-pci.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

Index: b/drivers/ide/setup-pci.c
===================================================================
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -556,10 +556,15 @@ void ide_pci_setup_ports(struct pci_dev 
 			hwif->drives[1].unmask = 1;
 		}
 
-		if (hwif->dma_base) {
-			hwif->swdma_mask = d->swdma_mask;
-			hwif->mwdma_mask = d->mwdma_mask;
-			hwif->ultra_mask = d->udma_mask;
+		hwif->swdma_mask = d->swdma_mask;
+		hwif->mwdma_mask = d->mwdma_mask;
+		hwif->ultra_mask = d->udma_mask;
+
+		if ((d->host_flags && IDE_HFLAG_NO_DMA) == 0 &&
+		    hwif->dma_base == 0) {
+			hwif->swdma_mask = 0;
+			hwif->mwdma_mask = 0;
+			hwif->ultra_mask = 0;
 		}
 
 		hwif->drives[0].autotune = 1;
--
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