From c666aae6919114d6cff789d79f80cfa85f3a7339 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 19 Jan 2012 18:43:08 -0800 Subject: [PATCH] [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 Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_expander.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 7e2d3c4c617..d63f0fbcd10 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -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); }