1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 63c743baf920..f2184276539d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1,7 +1,7 @@
 /*
  *  libata-core.c - helper library for ATA
  *
- *  Maintained by:  Jeff Garzik <jgarzik@pobox.com>
+ *  Maintained by:  Tejun Heo <tj@kernel.org>
  *                  Please ALWAYS copy linux-ide@vger.kernel.org
  *                  on emails.
  *
@@ -1602,6 +1602,12 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
         qc->tf = *tf;
         if (cdb)
                 memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
+
+        /* some SATA bridges need us to indicate data xfer direction */
+        if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) &&
+            dma_dir == DMA_FROM_DEVICE)
+                qc->tf.feature |= ATAPI_DMADIR;
+
         qc->flags |= ATA_QCFLAG_RESULT_TF;
         qc->dma_dir = dma_dir;
         if (dma_dir != DMA_NONE) {