2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Tejun Heo commit d89293abd95bfd7dd9229087d6c30c1464c5ac83 upstream. The dev->pio_mode > XFER_PIO_0 test is there to avoid unnecessary speed down warning messages but it accidentally disabled SATA link spd down during configuration phase after reset where PIO mode is always zero. This patch fixes the problem by moving the test where it belongs. This makes libata probing sequence behave better when the connection is flaky at higher link speeds which isn't too uncommon for eSATA devices. [cebbert@redhat.com: trivial backport to 2.6.27] Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik Cc: Chuck Ebbert Signed-off-by: Greg Kroah-Hartman --- drivers/ata/libata-eh.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2694,12 +2694,13 @@ static int ata_eh_handle_dev_fail(struct /* give it just one more chance */ ehc->tries[dev->devno] = min(ehc->tries[dev->devno], 1); case -EIO: - if (ehc->tries[dev->devno] == 1 && dev->pio_mode > XFER_PIO_0) { + if (ehc->tries[dev->devno] == 1) { /* This is the last chance, better to slow * down than lose it. */ sata_down_spd_limit(dev->link); - ata_down_xfermask_limit(dev, ATA_DNXFER_PIO); + if (dev->pio_mode > XFER_PIO_0) + ata_down_xfermask_limit(dev, ATA_DNXFER_PIO); } } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/