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ata: libata-core: Fix ata_pci_shutdown_one()

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This reverts commit 5b6fba546d.

Commit 5b6fba546d ("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 24eca2dce0 ("scsi: sd: Introduce
manage_shutdown device flag"). With this, all ATA disks are spun down on
system shutdown, which make the changes introduced with 5b6fba546d
useless.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
This commit is contained in:
Damien Le Moal 2023-11-06 13:00:49 +09:00
parent 13d88ac54d
commit fd3a6837d8
1 changed files with 1 additions and 15 deletions
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16
drivers/ata/libata-core.c
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@ -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;