kbuild: rust: keep Rust objects out of Clang LTO with inline helpersgrafted

Under `CONFIG_LTO_CLANG` + `CONFIG_RUST_INLINE_HELPERS`, one may hit
`objtool` errors such as:

    vmlinux.o: error: objtool: _R..._3Gsp4boot+0xd6a:
    can't find jump dest instruction at .text._R..._3Gsp4boot+0x1dfd

The reason is that in such builds, the Clang invocation that compiles
the combined Rust plus helpers bitcode emits LLVM bitcode (again) --
the final code generation happens in the linker's LTO step, which the
`-mllvm` trap options passed to Clang do not reach.

This, in turn, means that unreachable traps are missing, and the
impossible paths do not merely fallthrough to the next symbol, but past
the end of their own section, since LTO builds place each function in
its own section.

Thus filter `CC_FLAGS_LTO` out of the Clang invocation, so that it always
emits machine code directly, with the traps in place.

Assisted-by: LLM
Cc: Gary Guo <gary@garyguo.net>
Cc: Boqun Feng <boqun@kernel.org>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Matthew Maurer <mmaurer@google.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Fixes: 3a2486cc1da5 ("kbuild: rust: provide an option to inline C helpers into Rust")
Acked-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260816133233.197500-2-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

1 files changed, 724 insertions, 0 deletions

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
new file mode 100644
index 000000000..8df310983
--- /dev/null
+++ b/drivers/bluetooth/bfusb.c
@@ -0,0 +1,724 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ *  AVM BlueFRITZ! USB driver
+ *
+ *  Copyright (C) 2003-2006  Marcel Holtmann <marcel@holtmann.org>
+ */
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/skbuff.h>
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#define VERSION "1.2"
+
+static struct usb_driver bfusb_driver;
+
+static const struct usb_device_id bfusb_table[] = {
+	/* AVM BlueFRITZ! USB */
+	{ USB_DEVICE(0x057c, 0x2200) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bfusb_table);
+
+#define BFUSB_MAX_BLOCK_SIZE	256
+
+#define BFUSB_BLOCK_TIMEOUT	3000
+
+#define BFUSB_TX_PROCESS	1
+#define BFUSB_TX_WAKEUP		2
+
+#define BFUSB_MAX_BULK_TX	2
+#define BFUSB_MAX_BULK_RX	2
+
+struct bfusb_data {
+	struct hci_dev		*hdev;
+
+	unsigned long		state;
+
+	struct usb_device	*udev;
+
+	unsigned int		bulk_in_ep;
+	unsigned int		bulk_out_ep;
+	unsigned int		bulk_pkt_size;
+
+	rwlock_t		lock;
+
+	struct sk_buff_head	transmit_q;
+
+	struct sk_buff		*reassembly;
+
+	atomic_t		pending_tx;
+	struct sk_buff_head	pending_q;
+	struct sk_buff_head	completed_q;
+};
+
+struct bfusb_data_scb {
+	struct urb *urb;
+};
+
+static void bfusb_tx_complete(struct urb *urb);
+static void bfusb_rx_complete(struct urb *urb);
+
+static struct urb *bfusb_get_completed(struct bfusb_data *data)
+{
+	struct sk_buff *skb;
+	struct urb *urb = NULL;
+
+	BT_DBG("bfusb %p", data);
+
+	skb = skb_dequeue(&data->completed_q);
+	if (skb) {
+		urb = ((struct bfusb_data_scb *) skb->cb)->urb;
+		kfree_skb(skb);
+	}
+
+	return urb;
+}
+
+static void bfusb_unlink_urbs(struct bfusb_data *data)
+{
+	struct sk_buff *skb;
+	struct urb *urb;
+
+	BT_DBG("bfusb %p", data);
+
+	while ((skb = skb_dequeue(&data->pending_q))) {
+		urb = ((struct bfusb_data_scb *) skb->cb)->urb;
+		usb_kill_urb(urb);
+		skb_queue_tail(&data->completed_q, skb);
+	}
+
+	while ((urb = bfusb_get_completed(data)))
+		usb_free_urb(urb);
+}
+
+static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
+{
+	struct bfusb_data_scb *scb = (void *) skb->cb;
+	struct urb *urb = bfusb_get_completed(data);
+	int err, pipe;
+
+	BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
+
+	if (!urb) {
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!urb)
+			return -ENOMEM;
+	}
+
+	pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
+
+	usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len,
+			bfusb_tx_complete, skb);
+
+	scb->urb = urb;
+
+	skb_queue_tail(&data->pending_q, skb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		bt_dev_err(data->hdev, "bulk tx submit failed urb %p err %d",
+			   urb, err);
+		skb_unlink(skb, &data->pending_q);
+		usb_free_urb(urb);
+	} else
+		atomic_inc(&data->pending_tx);
+
+	return err;
+}
+
+static void bfusb_tx_wakeup(struct bfusb_data *data)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("bfusb %p", data);
+
+	if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) {
+		set_bit(BFUSB_TX_WAKEUP, &data->state);
+		return;
+	}
+
+	do {
+		clear_bit(BFUSB_TX_WAKEUP, &data->state);
+
+		while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) &&
+				(skb = skb_dequeue(&data->transmit_q))) {
+			if (bfusb_send_bulk(data, skb) < 0) {
+				skb_queue_head(&data->transmit_q, skb);
+				break;
+			}
+		}
+
+	} while (test_bit(BFUSB_TX_WAKEUP, &data->state));
+
+	clear_bit(BFUSB_TX_PROCESS, &data->state);
+}
+
+static void bfusb_tx_complete(struct urb *urb)
+{
+	struct sk_buff *skb = (struct sk_buff *) urb->context;
+	struct bfusb_data *data = (struct bfusb_data *) skb->dev;
+
+	BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len);
+
+	atomic_dec(&data->pending_tx);
+
+	if (!test_bit(HCI_RUNNING, &data->hdev->flags))
+		return;
+
+	if (!urb->status)
+		data->hdev->stat.byte_tx += skb->len;
+	else
+		data->hdev->stat.err_tx++;
+
+	read_lock(&data->lock);
+
+	skb_unlink(skb, &data->pending_q);
+	skb_queue_tail(&data->completed_q, skb);
+
+	bfusb_tx_wakeup(data);
+
+	read_unlock(&data->lock);
+}
+
+
+static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
+{
+	struct bfusb_data_scb *scb;
+	struct sk_buff *skb;
+	int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
+
+	BT_DBG("bfusb %p urb %p", data, urb);
+
+	if (!urb) {
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!urb)
+			return -ENOMEM;
+	}
+
+	skb = bt_skb_alloc(size, GFP_ATOMIC);
+	if (!skb) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	skb->dev = (void *) data;
+
+	scb = (struct bfusb_data_scb *) skb->cb;
+	scb->urb = urb;
+
+	pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep);
+
+	usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size,
+			bfusb_rx_complete, skb);
+
+	skb_queue_tail(&data->pending_q, skb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		bt_dev_err(data->hdev, "bulk rx submit failed urb %p err %d",
+			   urb, err);
+		skb_unlink(skb, &data->pending_q);
+		kfree_skb(skb);
+		usb_free_urb(urb);
+	}
+
+	return err;
+}
+
+static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len)
+{
+	BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len);
+
+	if (hdr & 0x10) {
+		bt_dev_err(data->hdev, "error in block");
+		kfree_skb(data->reassembly);
+		data->reassembly = NULL;
+		return -EIO;
+	}
+
+	if (hdr & 0x04) {
+		struct sk_buff *skb;
+		unsigned char pkt_type;
+		int pkt_len = 0;
+
+		if (data->reassembly) {
+			bt_dev_err(data->hdev, "unexpected start block");
+			kfree_skb(data->reassembly);
+			data->reassembly = NULL;
+		}
+
+		if (len < 1) {
+			bt_dev_err(data->hdev, "no packet type found");
+			return -EPROTO;
+		}
+
+		pkt_type = *buf++; len--;
+
+		switch (pkt_type) {
+		case HCI_EVENT_PKT:
+			if (len >= HCI_EVENT_HDR_SIZE) {
+				struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
+				pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
+			} else {
+				bt_dev_err(data->hdev, "event block is too short");
+				return -EILSEQ;
+			}
+			break;
+
+		case HCI_ACLDATA_PKT:
+			if (len >= HCI_ACL_HDR_SIZE) {
+				struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf;
+				pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
+			} else {
+				bt_dev_err(data->hdev, "data block is too short");
+				return -EILSEQ;
+			}
+			break;
+
+		case HCI_SCODATA_PKT:
+			if (len >= HCI_SCO_HDR_SIZE) {
+				struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf;
+				pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
+			} else {
+				bt_dev_err(data->hdev, "audio block is too short");
+				return -EILSEQ;
+			}
+			break;
+		}
+
+		skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
+		if (!skb) {
+			bt_dev_err(data->hdev, "no memory for the packet");
+			return -ENOMEM;
+		}
+
+		hci_skb_pkt_type(skb) = pkt_type;
+
+		data->reassembly = skb;
+	} else {
+		if (!data->reassembly) {
+			bt_dev_err(data->hdev, "unexpected continuation block");
+			return -EIO;
+		}
+	}
+
+	if (len > 0)
+		skb_put_data(data->reassembly, buf, len);
+
+	if (hdr & 0x08) {
+		hci_recv_frame(data->hdev, data->reassembly);
+		data->reassembly = NULL;
+	}
+
+	return 0;
+}
+
+static void bfusb_rx_complete(struct urb *urb)
+{
+	struct sk_buff *skb = (struct sk_buff *) urb->context;
+	struct bfusb_data *data = (struct bfusb_data *) skb->dev;
+	unsigned char *buf = urb->transfer_buffer;
+	int count = urb->actual_length;
+	int err, hdr, len;
+
+	BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len);
+
+	read_lock(&data->lock);
+
+	if (!test_bit(HCI_RUNNING, &data->hdev->flags))
+		goto unlock;
+
+	if (urb->status || !count)
+		goto resubmit;
+
+	data->hdev->stat.byte_rx += count;
+
+	skb_put(skb, count);
+
+	while (count) {
+		hdr = buf[0] | (buf[1] << 8);
+
+		if (hdr & 0x4000) {
+			len = 0;
+			count -= 2;
+			buf   += 2;
+		} else {
+			len = (buf[2] == 0) ? 256 : buf[2];
+			count -= 3;
+			buf   += 3;
+		}
+
+		if (count < len)
+			bt_dev_err(data->hdev, "block extends over URB buffer ranges");
+
+		if ((hdr & 0xe1) == 0xc1)
+			bfusb_recv_block(data, hdr, buf, len);
+
+		count -= len;
+		buf   += len;
+	}
+
+	skb_unlink(skb, &data->pending_q);
+	kfree_skb(skb);
+
+	bfusb_rx_submit(data, urb);
+
+	read_unlock(&data->lock);
+
+	return;
+
+resubmit:
+	urb->dev = data->udev;
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		bt_dev_err(data->hdev, "bulk resubmit failed urb %p err %d",
+			   urb, err);
+	}
+
+unlock:
+	read_unlock(&data->lock);
+}
+
+static int bfusb_open(struct hci_dev *hdev)
+{
+	struct bfusb_data *data = hci_get_drvdata(hdev);
+	unsigned long flags;
+	int i, err;
+
+	BT_DBG("hdev %p bfusb %p", hdev, data);
+
+	write_lock_irqsave(&data->lock, flags);
+
+	err = bfusb_rx_submit(data, NULL);
+	if (!err) {
+		for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
+			bfusb_rx_submit(data, NULL);
+	}
+
+	write_unlock_irqrestore(&data->lock, flags);
+
+	return err;
+}
+
+static int bfusb_flush(struct hci_dev *hdev)
+{
+	struct bfusb_data *data = hci_get_drvdata(hdev);
+
+	BT_DBG("hdev %p bfusb %p", hdev, data);
+
+	skb_queue_purge(&data->transmit_q);
+
+	return 0;
+}
+
+static int bfusb_close(struct hci_dev *hdev)
+{
+	struct bfusb_data *data = hci_get_drvdata(hdev);
+	unsigned long flags;
+
+	BT_DBG("hdev %p bfusb %p", hdev, data);
+
+	write_lock_irqsave(&data->lock, flags);
+	write_unlock_irqrestore(&data->lock, flags);
+
+	bfusb_unlink_urbs(data);
+	bfusb_flush(hdev);
+
+	return 0;
+}
+
+static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct bfusb_data *data = hci_get_drvdata(hdev);
+	struct sk_buff *nskb;
+	unsigned char buf[3];
+	int sent = 0, size, count;
+
+	BT_DBG("hdev %p skb %p type %d len %d", hdev, skb,
+	       hci_skb_pkt_type(skb), skb->len);
+
+	switch (hci_skb_pkt_type(skb)) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		break;
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		break;
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		break;
+	}
+
+	/* Prepend skb with frame type */
+	memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
+
+	count = skb->len;
+
+	/* Max HCI frame size seems to be 1511 + 1 */
+	nskb = bt_skb_alloc(count + 32, GFP_KERNEL);
+	if (!nskb) {
+		bt_dev_err(hdev, "Can't allocate memory for new packet");
+		return -ENOMEM;
+	}
+
+	nskb->dev = (void *) data;
+
+	while (count) {
+		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
+
+		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
+		buf[1] = 0x00;
+		buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
+
+		skb_put_data(nskb, buf, 3);
+		skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
+
+		sent  += size;
+		count -= size;
+	}
+
+	/* Don't send frame with multiple size of bulk max packet */
+	if ((nskb->len % data->bulk_pkt_size) == 0) {
+		buf[0] = 0xdd;
+		buf[1] = 0x00;
+		skb_put_data(nskb, buf, 2);
+	}
+
+	read_lock(&data->lock);
+
+	skb_queue_tail(&data->transmit_q, nskb);
+	bfusb_tx_wakeup(data);
+
+	read_unlock(&data->lock);
+
+	kfree_skb(skb);
+
+	return 0;
+}
+
+static int bfusb_load_firmware(struct bfusb_data *data,
+			       const unsigned char *firmware, int count)
+{
+	unsigned char *buf;
+	int err, pipe, len, size, sent = 0;
+
+	BT_DBG("bfusb %p udev %p", data, data->udev);
+
+	BT_INFO("BlueFRITZ! USB loading firmware");
+
+	buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL);
+	if (!buf) {
+		BT_ERR("Can't allocate memory chunk for firmware");
+		return -ENOMEM;
+	}
+
+	pipe = usb_sndctrlpipe(data->udev, 0);
+
+	if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
+		BT_ERR("Can't change to loading configuration");
+		kfree(buf);
+		return -EBUSY;
+	}
+
+	data->udev->toggle[0] = data->udev->toggle[1] = 0;
+
+	pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
+
+	while (count) {
+		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
+
+		memcpy(buf, firmware + sent, size);
+
+		err = usb_bulk_msg(data->udev, pipe, buf, size,
+					&len, BFUSB_BLOCK_TIMEOUT);
+
+		if (err || (len != size)) {
+			BT_ERR("Error in firmware loading");
+			goto error;
+		}
+
+		sent  += size;
+		count -= size;
+	}
+
+	err = usb_bulk_msg(data->udev, pipe, NULL, 0,
+					&len, BFUSB_BLOCK_TIMEOUT);
+	if (err < 0) {
+		BT_ERR("Error in null packet request");
+		goto error;
+	}
+
+	pipe = usb_sndctrlpipe(data->udev, 0);
+
+	err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+	if (err < 0) {
+		BT_ERR("Can't change to running configuration");
+		goto error;
+	}
+
+	data->udev->toggle[0] = data->udev->toggle[1] = 0;
+
+	BT_INFO("BlueFRITZ! USB device ready");
+
+	kfree(buf);
+	return 0;
+
+error:
+	kfree(buf);
+
+	pipe = usb_sndctrlpipe(data->udev, 0);
+
+	usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+	return err;
+}
+
+static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	const struct firmware *firmware;
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_host_endpoint *bulk_out_ep;
+	struct usb_host_endpoint *bulk_in_ep;
+	struct hci_dev *hdev;
+	struct bfusb_data *data;
+
+	BT_DBG("intf %p id %p", intf, id);
+
+	/* Check number of endpoints */
+	if (intf->cur_altsetting->desc.bNumEndpoints < 2)
+		return -EIO;
+
+	bulk_out_ep = &intf->cur_altsetting->endpoint[0];
+	bulk_in_ep  = &intf->cur_altsetting->endpoint[1];
+
+	if (!bulk_out_ep || !bulk_in_ep) {
+		BT_ERR("Bulk endpoints not found");
+		goto done;
+	}
+
+	/* Initialize control structure and load firmware */
+	data = devm_kzalloc(&intf->dev, sizeof(struct bfusb_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->udev = udev;
+	data->bulk_in_ep    = bulk_in_ep->desc.bEndpointAddress;
+	data->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
+	data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
+
+	if (!data->bulk_pkt_size)
+		goto done;
+
+	rwlock_init(&data->lock);
+
+	data->reassembly = NULL;
+
+	skb_queue_head_init(&data->transmit_q);
+	skb_queue_head_init(&data->pending_q);
+	skb_queue_head_init(&data->completed_q);
+
+	if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
+		BT_ERR("Firmware request failed");
+		goto done;
+	}
+
+	BT_DBG("firmware data %p size %zu", firmware->data, firmware->size);
+
+	if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) {
+		BT_ERR("Firmware loading failed");
+		goto release;
+	}
+
+	release_firmware(firmware);
+
+	/* Initialize and register HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		goto done;
+	}
+
+	data->hdev = hdev;
+
+	hdev->bus = HCI_USB;
+	hci_set_drvdata(hdev, data);
+	SET_HCIDEV_DEV(hdev, &intf->dev);
+
+	hdev->open  = bfusb_open;
+	hdev->close = bfusb_close;
+	hdev->flush = bfusb_flush;
+	hdev->send  = bfusb_send_frame;
+
+	hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS);
+
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		hci_free_dev(hdev);
+		goto done;
+	}
+
+	usb_set_intfdata(intf, data);
+
+	return 0;
+
+release:
+	release_firmware(firmware);
+
+done:
+	return -EIO;
+}
+
+static void bfusb_disconnect(struct usb_interface *intf)
+{
+	struct bfusb_data *data = usb_get_intfdata(intf);
+	struct hci_dev *hdev = data->hdev;
+
+	BT_DBG("intf %p", intf);
+
+	if (!hdev)
+		return;
+
+	usb_set_intfdata(intf, NULL);
+
+	bfusb_close(hdev);
+
+	hci_unregister_dev(hdev);
+	hci_free_dev(hdev);
+}
+
+static struct usb_driver bfusb_driver = {
+	.name		= "bfusb",
+	.probe		= bfusb_probe,
+	.disconnect	= bfusb_disconnect,
+	.id_table	= bfusb_table,
+	.disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(bfusb_driver);
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE("bfubase.frm");