usb: gadget: midi: f_midi_alloc() can be static

[Fengguang Wu]

drivers/usb/gadget/function/f_midi.c:1072:21: sparse: symbol 'f_midi_alloc' was not declared. Should it be static?
drivers/usb/gadget/legacy/gmidi.c:118:30: sparse: symbol 'fi_midi' was not declared. Should it be static?
drivers/usb/gadget/legacy/gmidi.c:119:21: sparse: symbol 'f_midi' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 function/f_midi.c |    2 +-
 legacy/gmidi.c    |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: linux/drivers/usb/gadget/function/f_midi.c
===================================================================
--- linux.orig/drivers/usb/gadget/function/f_midi.c
+++ linux/drivers/usb/gadget/function/f_midi.c
@@ -1069,7 +1069,7 @@ static void f_midi_unbind(struct usb_con
 	usb_free_all_descriptors(f);
 }
 
-struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
+static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
 {
 	struct f_midi *midi;
 	struct f_midi_opts *opts;
Index: linux/drivers/usb/gadget/legacy/gmidi.c
===================================================================
--- linux.orig/drivers/usb/gadget/legacy/gmidi.c
+++ linux/drivers/usb/gadget/legacy/gmidi.c
@@ -115,8 +115,8 @@ static struct usb_gadget_strings *dev_st
 	NULL,
 };
 
-struct usb_function_instance *fi_midi;
-struct usb_function *f_midi;
+static struct usb_function_instance *fi_midi;
+static struct usb_function *f_midi;
 
 static int __exit midi_unbind(struct usb_composite_dev *dev)
 {
--
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