diff options
Diffstat (limited to 'drivers/scsi/libsas/sas_expander.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 505ffe358293..f3f693b772ac 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -244,6 +244,11 @@ static int sas_ex_phy_discover_helper(struct domain_device *dev, u8 *disc_req, * dev to host FIS as described in section G.5 of * sas-2 r 04b */ dr = &((struct smp_resp *)disc_resp)->disc; + if (memcmp(dev->sas_addr, dr->attached_sas_addr, + SAS_ADDR_SIZE) == 0) { + sas_printk("Found loopback topology, just ignore it!\n"); + return 0; + } if (!(dr->attached_dev_type == 0 && dr->attached_sata_dev)) break; |