[PATCH v6 5/7] libsas: delete device on sas address changed
From: Dan Williams <hidden>
Date: 2012-01-21 01:51:05
Also in:
linux-scsi
Subsystem:
scsi libsas subsystem, scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
If the phy is attached to a new sas address unregister the first address before processing the new attachment. Signed-off-by: Dan Williams <redacted> --- drivers/scsi/libsas/sas_expander.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index dc6bba5..3d6ba30 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c@@ -1997,6 +1997,15 @@ 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); }