[PATCH] usb: gadget: uvc: add uvcg_warn macro

[Paul Elder]

We only have uvcg_dbg, uvcg_info, and uvcg_err, so add uvcg_warn macro
to print gadget device name and function name along with format.

Signed-off-by: Paul Elder <paul.el...@ideasonboard.com>
---
 drivers/usb/gadget/function/uvc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/function/uvc.h 
b/drivers/usb/gadget/function/uvc.h
index 1d89b1df4ba0..c381ce9bbbbe 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -56,6 +56,8 @@ extern unsigned int uvc_gadget_trace_param;
        dev_dbg(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
 #define uvcg_info(f, fmt, args...) \
        dev_info(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
+#define uvcg_warn(f, fmt, args...) \
+       dev_warn(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
 #define uvcg_err(f, fmt, args...) \
        dev_err(&(f)->config->cdev->gadget->dev, "%s: " fmt, (f)->name, ##args)
 
-- 
2.19.2