staging: comedi: comedi_buf: dont't export comedi_buf_memcpy_from()

This function is only used internally. Remove the export.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_buf.c

@@ -469,7 +469,8 @@ void comedi_buf_memcpy_to(struct comedi_subdevice *s, unsigned int offset,
 }
 EXPORT_SYMBOL_GPL(comedi_buf_memcpy_to);
 
-void comedi_buf_memcpy_from(struct comedi_subdevice *s, unsigned int offset,
+static void comedi_buf_memcpy_from(struct comedi_subdevice *s,
+				   unsigned int offset,
 				   void *dest, unsigned int nbytes)
 {
 	void *src;
@@ -495,7 +496,6 @@ void comedi_buf_memcpy_from(struct comedi_subdevice *s, unsigned int offset,
 		read_ptr = 0;
 	}
 }
-EXPORT_SYMBOL_GPL(comedi_buf_memcpy_from);
 
 /**
  * comedi_write_array_to_buffer - write data to comedi buffer

drivers/staging/comedi/comedidev.h

@@ -445,8 +445,7 @@ int comedi_buf_put(struct comedi_subdevice *s, unsigned short x);
 
 void comedi_buf_memcpy_to(struct comedi_subdevice *s, unsigned int offset,
 			  const void *source, unsigned int num_bytes);
-void comedi_buf_memcpy_from(struct comedi_subdevice *s, unsigned int offset,
-			    void *destination, unsigned int num_bytes);
+
 unsigned int comedi_write_array_to_buffer(struct comedi_subdevice *s,
 					  const void *data,
 					  unsigned int num_bytes);