Commit fd7ff36d authored by Huajun Li's avatar Huajun Li Committed by Greg Kroah-Hartman
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usb: Re-enable usb-storage support dynamic id



Enable usb-storage support dynamic id again by using a fixed id entry
that describes a device using the Bulk-Only transport with the
Transparent SCSI protocol.

Signed-off-by: default avatarHuajun Li <huajun.li.lee@gmail.com>
Reviewed-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent e73b2db6
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+18 −3
Original line number Diff line number Diff line
@@ -125,6 +125,9 @@ static struct us_unusual_dev us_unusual_dev_list[] = {
	{ }		/* Terminating entry */
};

static struct us_unusual_dev for_dynamic_ids =
		USUAL_DEV(USB_SC_SCSI, USB_PR_BULK, 0);

#undef UNUSUAL_DEV
#undef COMPLIANT_DEV
#undef USUAL_DEV
@@ -1027,8 +1030,10 @@ EXPORT_SYMBOL_GPL(usb_stor_disconnect);
static int storage_probe(struct usb_interface *intf,
			 const struct usb_device_id *id)
{
	struct us_unusual_dev *unusual_dev;
	struct us_data *us;
	int result;
	int size;

	/*
	 * If libusual is configured, let it decide whether a standard
@@ -1047,8 +1052,19 @@ static int storage_probe(struct usb_interface *intf,
	 * table, so we use the index of the id entry to find the
	 * corresponding unusual_devs entry.
	 */
	result = usb_stor_probe1(&us, intf, id,
			(id - usb_storage_usb_ids) + us_unusual_dev_list);

	size = ARRAY_SIZE(us_unusual_dev_list);
	if (id >= usb_storage_usb_ids && id < usb_storage_usb_ids + size) {
		unusual_dev = (id - usb_storage_usb_ids) + us_unusual_dev_list;
	} else {
		unusual_dev = &for_dynamic_ids;

		US_DEBUGP("%s %s 0x%04x 0x%04x\n", "Use Bulk-Only transport",
			"with the Transparent SCSI protocol for dynamic id:",
			id->idVendor, id->idProduct);
	}

	result = usb_stor_probe1(&us, intf, id, unusual_dev);
	if (result)
		return result;

@@ -1074,7 +1090,6 @@ static struct usb_driver usb_storage_driver = {
	.id_table =	usb_storage_usb_ids,
	.supports_autosuspend = 1,
	.soft_unbind =	1,
	.no_dynamic_id = 1,
};

static int __init usb_stor_init(void)