path: root/drivers/ata/libata-core.c
diff options
authorAndy Whitcroft <apw@canonical.com>2012-05-04 22:15:10 +0100
committerJeff Garzik <jgarzik@redhat.com>2012-05-07 15:32:23 -0400
commitdb63a4c8115a0bb904496e1cdd3e7488e68b0d06 (patch)
tree326448b28bf8de7c6205ed9e598070111e8a5020 /drivers/ata/libata-core.c
parentd48b97b403d23f6df0b990cee652bdf9a52337a3 (diff)
libata: add a host flag to ignore detected ATA devices
Where devices are visible via more than one host we sometimes wish to indicate that cirtain devices should be ignored on a specific host. Add a host flag indicating that this host wishes to ignore ATA specific devices. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 23763a1ec570..d31ee557b395 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1973,6 +1973,12 @@ retry:
if (class == ATA_DEV_ATA) {
if (!ata_id_is_ata(id) && !ata_id_is_cfa(id))
goto err_out;
+ if (ap->host->flags & ATA_HOST_IGNORE_ATA &&
+ ata_id_is_ata(id)) {
+ ata_dev_dbg(dev,
+ "host indicates ignore ATA devices, ignored\n");
+ return -ENOENT;
+ }
} else {
if (ata_id_is_ata(id))
goto err_out;