---

yaml --- r: 142957 b: refs/heads/master c: edafcf7 h: refs/heads/master i: 142955: 4448d89 v: v3
git-mirror · Apr 8, 2009 · 7cfb827 · 7cfb827
1 parent 6a98799
commit 7cfb827
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Showing 3 changed files with 4 additions and 9 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d18812070efc658267f7573eec5ce7810128bfeb
+refs/heads/master: edafcf73dca2f9531c78eec130df84a8c9654b3b
diff --git a/trunk/drivers/ide/ide-dma-sff.c b/trunk/drivers/ide/ide-dma-sff.c
@@ -277,16 +277,14 @@ void ide_dma_start(ide_drive_t *drive)
 		dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
 		outb(dma_cmd | ATA_DMA_START, hwif->dma_base + ATA_DMA_CMD);
 	}
-
-	wmb();
 }
 EXPORT_SYMBOL_GPL(ide_dma_start);
 
 /* returns 1 on error, 0 otherwise */
 int ide_dma_end(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	u8 dma_stat = 0, dma_cmd = 0, mask;
+	u8 dma_stat = 0, dma_cmd = 0;
 
 	/* stop DMA */
 	if (hwif->host_flags & IDE_HFLAG_MMIO) {
@@ -304,11 +302,10 @@ int ide_dma_end(ide_drive_t *drive)
 	/* clear INTR & ERROR bits */
 	ide_dma_sff_write_status(hwif, dma_stat | ATA_DMA_ERR | ATA_DMA_INTR);
 
-	wmb();
+#define CHECK_DMA_MASK (ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR)
 
 	/* verify good DMA status */
-	mask = ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR;
-	if ((dma_stat & mask) != ATA_DMA_INTR)
+	if ((dma_stat & CHECK_DMA_MASK) != ATA_DMA_INTR)
 		return 0x10 | dma_stat;
 	return 0;
 }

diff --git a/trunk/drivers/ide/scc_pata.c b/trunk/drivers/ide/scc_pata.c
@@ -337,7 +337,6 @@ static void scc_dma_start(ide_drive_t *drive)
 
 	/* start DMA */
 	scc_ide_outb(dma_cmd | 1, hwif->dma_base);
-	wmb();
 }
 
 static int __scc_dma_end(ide_drive_t *drive)
@@ -354,7 +353,6 @@ static int __scc_dma_end(ide_drive_t *drive)
 	/* clear the INTR & ERROR bits */
 	scc_ide_outb(dma_stat | 6, hwif->dma_base + 4);
 	/* verify good DMA status */
-	wmb();
 	return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0;
 }