| Message ID | 20240626180031.4050226-28-cassel@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | ata,libsas: Assign the unique id used for printing earlier | expand |
On 6/26/24 20:00, Niklas Cassel wrote: > Add a debug print that tells us if LPM is not getting enabled because the > port is external. > > Reviewed-by: Damien Le Moal <dlemoal@kernel.org> > Signed-off-by: Niklas Cassel <cassel@kernel.org> > --- > drivers/ata/ahci.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c > index fc6fd583faf8..a05c17249448 100644 > --- a/drivers/ata/ahci.c > +++ b/drivers/ata/ahci.c > @@ -1732,8 +1732,10 @@ static void ahci_update_initial_lpm_policy(struct ata_port *ap) > * Management Interaction in AHCI 1.3.1. Therefore, do not enable > * LPM if the port advertises itself as an external port. > */ > - if (ap->pflags & ATA_PFLAG_EXTERNAL) > + if (ap->pflags & ATA_PFLAG_EXTERNAL) { > + ata_port_dbg(ap, "external port, not enabling LPM\n"); > return; > + } > > /* If no LPM states are supported by the HBA, do not bother with LPM */ > if ((ap->host->flags & ATA_HOST_NO_PART) && Reviewed-by: Hannes Reinecke <hare@suse.de> Cheers, Hannes
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index fc6fd583faf8..a05c17249448 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1732,8 +1732,10 @@ static void ahci_update_initial_lpm_policy(struct ata_port *ap) * Management Interaction in AHCI 1.3.1. Therefore, do not enable * LPM if the port advertises itself as an external port. */ - if (ap->pflags & ATA_PFLAG_EXTERNAL) + if (ap->pflags & ATA_PFLAG_EXTERNAL) { + ata_port_dbg(ap, "external port, not enabling LPM\n"); return; + } /* If no LPM states are supported by the HBA, do not bother with LPM */ if ((ap->host->flags & ATA_HOST_NO_PART) &&