staging: line6: drop retrieve_effects_setup sysfs attr

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/line6/pod.c

@@ -380,39 +380,6 @@ static int pod_resolve(const char *buf, short block0, short block1,
 	return 0;
 }
 
-/*
-	Send command to store channel/effects setup/amp setup to PODxt Pro.
-*/
-static ssize_t pod_send_store_command(struct device *dev, const char *buf,
-				      size_t count, short block0, short block1)
-{
-	struct usb_interface *interface = to_usb_interface(dev);
-	struct usb_line6_pod *pod = usb_get_intfdata(interface);
-	int ret;
-	int size = 3 + sizeof(pod->prog_data_buf);
-	char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_STORE, size);
-
-	if (!sysex)
-		return 0;
-
-	/* Don't know what this is good for, but PODxt Pro transmits it, so we
-	 * also do... */
-	sysex[SYSEX_DATA_OFS] = 5;
-	ret = pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS + 1);
-	if (ret) {
-		kfree(sysex);
-		return ret;
-	}
-
-	memcpy(sysex + SYSEX_DATA_OFS + 3, &pod->prog_data_buf,
-	       sizeof(pod->prog_data_buf));
-
-	line6_send_sysex_message(&pod->line6, sysex, size);
-	kfree(sysex);
-	/* needs some delay here on AMD64 platform */
-	return count;
-}
-
 /*
 	Send command to retrieve channel/effects setup/amp setup to PODxt Pro.
 */
@@ -607,16 +574,6 @@ static ssize_t pod_set_store_amp_setup(struct device *dev,
 	return pod_send_store_command(dev, buf, count, 0x0040, 0x0100);
 }
 
-/*
-	"write" request on "retrieve_effects_setup" special file.
-*/
-static ssize_t pod_set_retrieve_effects_setup(struct device *dev,
-					      struct device_attribute *attr,
-					      const char *buf, size_t count)
-{
-	return pod_send_retrieve_command(dev, buf, count, 0x0080, 0x0080);
-}
-
 /*
 	"read" request on "midi_postprocess" special file.
 */
@@ -790,8 +747,6 @@ static DEVICE_ATTR(firmware_version, S_IRUGO, pod_get_firmware_version,
 		   line6_nop_write);
 static DEVICE_ATTR(midi_postprocess, S_IWUSR | S_IRUGO,
 		   pod_get_midi_postprocess, pod_set_midi_postprocess);
-static DEVICE_ATTR(retrieve_effects_setup, S_IWUSR, line6_nop_read,
-		   pod_set_retrieve_effects_setup);
 static DEVICE_ATTR(routing, S_IWUSR | S_IRUGO, pod_get_routing,
 		   pod_set_routing);
 static DEVICE_ATTR(serial_number, S_IRUGO, pod_get_serial_number,
@@ -890,7 +845,6 @@ static int pod_create_files2(struct device *dev)
 	CHECK_RETURN(device_create_file(dev, &dev_attr_finish));
 	CHECK_RETURN(device_create_file(dev, &dev_attr_firmware_version));
 	CHECK_RETURN(device_create_file(dev, &dev_attr_midi_postprocess));
-	CHECK_RETURN(device_create_file(dev, &dev_attr_retrieve_effects_setup));
 	CHECK_RETURN(device_create_file(dev, &dev_attr_routing));
 	CHECK_RETURN(device_create_file(dev, &dev_attr_serial_number));
 	CHECK_RETURN(device_create_file(dev, &dev_attr_store_amp_setup));
@@ -1021,8 +975,6 @@ void line6_pod_disconnect(struct usb_interface *interface)
 			device_remove_file(dev, &dev_attr_finish);
 			device_remove_file(dev, &dev_attr_firmware_version);
 			device_remove_file(dev, &dev_attr_midi_postprocess);
-			device_remove_file(dev,
-					   &dev_attr_retrieve_effects_setup);
 			device_remove_file(dev, &dev_attr_routing);
 			device_remove_file(dev, &dev_attr_serial_number);
 			device_remove_file(dev, &dev_attr_store_amp_setup);