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[SCSI] libsas: delete device on sas address changed 

If the phy is attached to a new sas address unregister the first address
before processing the new attachment.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams 2012-01-19 18:43:08 -08:00 committed by James Bottomley
parent 354cf82980
commit c666aae691
1 changed files with 9 additions and 0 deletions
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9
drivers/scsi/libsas/sas_expander.c
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@ -2005,6 +2005,15 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last)
return res;
}
/* delete the old link */
if (SAS_ADDR(phy->attached_sas_addr) &&
SAS_ADDR(sas_addr) != SAS_ADDR(phy->attached_sas_addr)) {
SAS_DPRINTK("ex %016llx phy 0x%x replace %016llx\n",
SAS_ADDR(dev->sas_addr), phy_id,
SAS_ADDR(phy->attached_sas_addr));
sas_unregister_devs_sas_addr(dev, phy_id, last);
}
return sas_discover_new(dev, phy_id);
}