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Commit bee89eae authored by Moger, Babu's avatar Moger, Babu Committed by James Bottomley
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[SCSI] scsi_dh_rdac: Adding the match function for rdac device handler 



This patch introduces the match function for rdac device handler. Without
this, sometimes handler attach fails during the device_add. Included check for
TPGS bit before proceeding further. The match function was introduced by
commit 6c3633d0

Signed-off-by: default avatarBabu Moger <babu.moger@netapp.com>
Acked-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent a315969e

drivers/scsi/device_handler/scsi_dh_rdac.c

+19 −0
Original line number Diff line number Diff line
@@ -820,6 +820,24 @@ static const struct scsi_dh_devlist rdac_dev_list[] = { 
	{NULL, NULL},

};



static bool rdac_match(struct scsi_device *sdev)

{

	int i;



	if (scsi_device_tpgs(sdev))

		return false;



	for (i = 0; rdac_dev_list[i].vendor; i++) {

		if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor,

			strlen(rdac_dev_list[i].vendor)) &&

		    !strncmp(sdev->model, rdac_dev_list[i].model,

			strlen(rdac_dev_list[i].model))) {

			return true;

		}

	}

	return false;

}



static int rdac_bus_attach(struct scsi_device *sdev);

static void rdac_bus_detach(struct scsi_device *sdev);
@@ -832,6 +850,7 @@ static struct scsi_device_handler rdac_dh = { 
	.attach = rdac_bus_attach,

	.detach = rdac_bus_detach,

	.activate = rdac_activate,

	.match = rdac_match,

};



static int rdac_bus_attach(struct scsi_device *sdev)