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[SCSI] scsi_dh_emc: Add a match function for emc device handler 

This patch introduces the match function for emc device handler.  Included
check for TPGS bit before proceeding further.  The match function was
introduced by commit 6c3633d08a

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Moger, Babu 2011-12-01 15:01:16 -05:00 committed by James Bottomley
parent a878185c3b
commit 4f10143f6e
1 changed files with 19 additions and 0 deletions
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19
drivers/scsi/device_handler/scsi_dh_emc.c
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@ -629,6 +629,24 @@ static const struct scsi_dh_devlist clariion_dev_list[] = {
{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);
@ -642,6 +660,7 @@ static struct scsi_device_handler clariion_dh = {
.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)