From bc6d4c3b78d1320606f99905e2a9fa86b246b449 Mon Sep 17 00:00:00 2001
From: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Date: Thu, 25 Jul 2013 11:31:12 +0530
Subject: [PATCH] [SCSI] mpt2sas: when Async scanning is enabled then while
scanning, devices are removed but their transport layer entries are not
removed
When Async scanning mode is enabled and device scanning is in progress then
devices should not be removed. But in actuality, devices are removed but
their transport layer entries are not removed. This causes error to add
the same device to the transport layer after host reset or diagnostic
reset.
So, in this patch, modified the code in such a way that device is not removed
when Async scanning mode is enabled and device scanning is in progress.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
drivers/scsi/mpt2sas/mpt2sas_scsih.c | 23 +++++++++++++----------
1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 9854385deadf..481afe60bc91 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -628,11 +628,12 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
* devices while scanning is turned on due to an oops in
* scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
*/
- if (!ioc->is_driver_loading)
+ if (!ioc->is_driver_loading) {
mpt2sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
- _scsih_sas_device_remove(ioc, sas_device);
+ _scsih_sas_device_remove(ioc, sas_device);
+ }
}
}
@@ -7916,10 +7917,12 @@ _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
sas_device->sas_address_parent)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
- if (!ioc->is_driver_loading)
- mpt2sas_transport_port_remove(ioc, sas_address,
+ if (!ioc->is_driver_loading) {
+ mpt2sas_transport_port_remove(ioc,
+ sas_address,
sas_address_parent);
- _scsih_sas_device_remove(ioc, sas_device);
+ _scsih_sas_device_remove(ioc, sas_device);
+ }
}
}
}
@@ -7972,14 +7975,14 @@ _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
kfree(sas_device);
continue;
} else if (!sas_device->starget) {
- if (!ioc->is_driver_loading)
+ if (!ioc->is_driver_loading) {
mpt2sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent);
- list_del(&sas_device->list);
- kfree(sas_device);
- continue;
-
+ list_del(&sas_device->list);
+ kfree(sas_device);
+ continue;
+ }
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_move_tail(&sas_device->list, &ioc->sas_device_list);