[PATCH] libata: add FIXME above ata_dev_xfermask()

Add FIXME above ata_dev_xfermask noting that the current
implementation limits all transfer modes to the fastest of the slowest
device on a port which isn't necessary.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 64f71df19ed19d78b614227cb5e430ee3828035a..1cb9813753233ac52d7daba5b5030ed5c1cdbf65 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2633,6 +2633,10 @@ static int ata_dma_blacklisted(const struct ata_device *dev)
  *     known limits including host controller limits, device
  *     blacklist, etc...
  *
+ *     FIXME: The current implementation limits all transfer modes to
+ *     the fastest of the lowested device on the port.  This is not
+ *     required on most controllers. 
+ *
  *     LOCKING:
  *     None.
  */