[PATCH] ata: libata-core: Fix ata_pci_shutdown_one()

[Damien Le Moal <dlemoal@kernel.org>]

Commit 5b6fba546da2 ("ata: libata-core: Detach a port devices on
shutdown") modified the function ata_pci_shutdown_one() to stop
(suspend) devices attached to the ports of a PCI AHCI adapter to ensure
that drives are spun down before shutting down a system. However, this
is done only for PCI adapters and not for other types of adapters. This
limitation was addressed with commit 24eca2dce0f8 ("scsi: sd: Introduce
manage_shutdown device flag"). With this, all ATA disks are spun down on
system shutdown.

This reverts commit 5b6fba546da2 as the change introduced is now
useless.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
---
 drivers/ata/libata-core.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 6fb4e8dc8c3c..09ed67772fae 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6180,24 +6180,10 @@ EXPORT_SYMBOL_GPL(ata_pci_remove_one);
 void ata_pci_shutdown_one(struct pci_dev *pdev)
 {
 	struct ata_host *host = pci_get_drvdata(pdev);
-	struct ata_port *ap;
-	unsigned long flags;
 	int i;
 
-	/* Tell EH to disable all devices */
-	for (i = 0; i < host->n_ports; i++) {
-		ap = host->ports[i];
-		spin_lock_irqsave(ap->lock, flags);
-		ap->pflags |= ATA_PFLAG_UNLOADING;
-		ata_port_schedule_eh(ap);
-		spin_unlock_irqrestore(ap->lock, flags);
-	}
-
 	for (i = 0; i < host->n_ports; i++) {
-		ap = host->ports[i];
-
-		/* Wait for EH to complete before freezing the port */
-		ata_port_wait_eh(ap);
+		struct ata_port *ap = host->ports[i];
 
 		ap->pflags |= ATA_PFLAG_FROZEN;
 
-- 
2.41.0