[PATCH v2 4/4] mptsas: ask for deferred probe

[Luis R. Rodriguez]

From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>

Its reported that mptsas can at times take over 30 seconds
to recognize SCSI storage devices [0], this is done on the
driver's probe path. Use the the deferred probe workqueue
to allow long init sequences to complete.

[0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1276705

Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>
Cc: One Thousand Gnomes <gnomes@xxxxxxxxxxxxxxxxxxx>
Cc: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
Cc: Pierre Fersing <pierre-fersing@xxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Benjamin Poirier <bpoirier@xxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandigama@xxxxxxxxxxxxx>
Cc: Praveen Krishnamoorthy <praveen.krishnamoorthy@xxxxxxxxxxxxx>
Cc: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxxx>
Cc: Abhijit Mahajan <abhijit.mahajan@xxxxxxxxxxxxx>
Cc: Hariprasad S <hariprasad@xxxxxxxxxxx>
Cc: Santosh Rastapur <santosh@xxxxxxxxxxx>
Cc: MPT-FusionLinux.pdl@xxxxxxxxxxxxx
Cc: linux-scsi@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx>
---
 drivers/message/fusion/mptsas.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 711fcb5..3859ac3 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -5382,6 +5382,9 @@ MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
 
 
 static struct pci_driver mptsas_driver = {
+	.driver = {
+		.delay_probe = true,
+	},
 	.name		= "mptsas",
 	.id_table	= mptsas_pci_table,
 	.probe		= mptsas_probe,
-- 
2.0.1

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