This patch introduces the match function for emc device handler.
Included check for TPGS bit before proceeding further.
The match function was introduced by this patch
http://www.spinics.net/lists/linux-scsi/msg54284.html

Signed-off-by: Babu Moger <babu.moger@netapp.com>
---

--- linux-d211858/drivers/scsi/device_handler/scsi_dh_emc.c.orig 2011-11-02 14:17:15.000000000 -0500
+++ linux-d211858/drivers/scsi/device_handler/scsi_dh_emc.c 2011-11-02 15:13:51.000000000 -0500
@@ -628,6 +628,24 @@ static const struct scsi_dh_devlist clar
{NULL, NULL},
};

+static bool clariion_match(struct scsi_device *sdev)
+{
+ int i;
+
+ if (scsi_device_tpgs(sdev))
+ return false;
+
+ for (i = 0; clariion_dev_list[i].vendor; i++) {
+ if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
+ strlen(clariion_dev_list[i].vendor)) &&
+ !strncmp(sdev->model, clariion_dev_list[i].model,
+ strlen(clariion_dev_list[i].model))) {
+ return true;
+ }
+ }
+ return false;
+}
+
static int clariion_bus_attach(struct scsi_device *sdev);
static void clariion_bus_detach(struct scsi_device *sdev);

@@ -641,6 +659,7 @@ static struct scsi_device_handler clarii
.activate = clariion_activate,
.prep_fn = clariion_prep_fn,
.set_params = clariion_set_params,
+ .match = clariion_match,
};

static int clariion_bus_attach(struct scsi_device *sdev)



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