usb: Make usb_create_context() static

This function is not used anywhere outside of usb.c.

Signed-off-by: Paul Cercueil <[email protected]>

Author: pcercuei

iio-private.h

@@ -249,8 +249,6 @@ struct iio_context * local_create_context(void);
 struct iio_context * network_create_context(const char *hostname);
 struct iio_context * xml_create_context_mem(const char *xml, size_t len);
 struct iio_context * xml_create_context(const char *xml_file);
-struct iio_context * usb_create_context(unsigned int bus, uint16_t address,
-		uint16_t intrfc);
 struct iio_context * usb_create_context_from_uri(const char *uri);
 struct iio_context * serial_create_context_from_uri(const char *uri);
 

usb.c

@@ -804,8 +804,8 @@ static int usb_populate_context_attrs(struct iio_context *ctx,
 	return 0;
 }
 
-struct iio_context * usb_create_context(unsigned int bus,
-		uint16_t address, uint16_t intrfc)
+static struct iio_context * usb_create_context(unsigned int bus,
+					       uint16_t address, uint16_t intrfc)
 {
 	libusb_context *usb_ctx;
 	libusb_device_handle *hdl = NULL;