libata-eh: fix slave link EH action mask handling

Slave link action mask is transferred to master link and all the EH
actions are taken by the master link.  ata_eh_about_to_do() and
ata_eh_done() are called with ATA_EH_ALL_ACTIONS to clear the slave
link actions during transfer.  This always sets ATA_PFLAG_RECOVERED
flag causing spurious "EH complete" messages.

Don't set ATA_PFLAG_RECOVERED for slave link actions.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index d2409a8..7ccd0ce 100644 (file)
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1206,7 +1206,10 @@ void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
 
        ata_eh_clear_action(link, dev, ehi, action);
 
-       if (!(ehc->i.flags & ATA_EHI_QUIET))
+       /* About to take EH action, set RECOVERED.  Ignore actions on
+        * slave links as master will do them again.
+        */
+       if (!(ehc->i.flags & ATA_EHI_QUIET) && link != ap->slave_link)
                ap->pflags |= ATA_PFLAG_RECOVERED;
 
        spin_unlock_irqrestore(ap->lock, flags);