powerpc/eeh: Make permanently failed devices non-actionable

If a device is torn down by a hotplug slot driver it's marked as removed
and marked as permaantly failed. There's no point in trying to recover a
permernantly failed device so it should be considered un-actionable.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190903101605.2890-4-oohall@gmail.com

arch/powerpc/kernel/eeh_driver.c

@@ -96,8 +96,16 @@ static bool eeh_dev_removed(struct eeh_dev *edev)
 
 static bool eeh_edev_actionable(struct eeh_dev *edev)
 {
-	return (edev->pdev && !eeh_dev_removed(edev) &&
-		!eeh_pe_passed(edev->pe));
+	if (!edev->pdev)
+		return false;
+	if (edev->pdev->error_state == pci_channel_io_perm_failure)
+		return false;
+	if (eeh_dev_removed(edev))
+		return false;
+	if (eeh_pe_passed(edev->pe))
+		return false;
+
+	return true;
 }
 
 /**