staging: comedi: comedi_buf: remove export of comedi_read_array_from_buffer()

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

@@ -549,19 +549,9 @@ unsigned int comedi_write_array_to_buffer(struct comedi_subdevice *s,
 }
 EXPORT_SYMBOL_GPL(comedi_write_array_to_buffer);
 
-/**
- * comedi_read_array_from_buffer - read data from comedi buffer
- * @s: comedi_subdevice struct
- * @data: destination
- * @num_bytes: number of bytes to read
- *
- * Reads up to num_bytes bytes of data from the comedi buffer associated with
- * the subdevice, marks it as read and updates the acquisition scan progress.
- *
- * Returns the amount of data read in bytes.
- */
-unsigned int comedi_read_array_from_buffer(struct comedi_subdevice *s,
-					   void *data, unsigned int num_bytes)
+static unsigned int comedi_read_array_from_buffer(struct comedi_subdevice *s,
+						  void *data,
+						  unsigned int num_bytes)
 {
 	if (num_bytes == 0)
 		return 0;
@@ -574,7 +564,6 @@ unsigned int comedi_read_array_from_buffer(struct comedi_subdevice *s,
 
 	return num_bytes;
 }
-EXPORT_SYMBOL_GPL(comedi_read_array_from_buffer);
 
 /**
  * comedi_buf_read_samples - read sample data from comedi buffer

drivers/staging/comedi/comedidev.h

@@ -451,8 +451,6 @@ void comedi_buf_memcpy_from(struct comedi_subdevice *s, unsigned int offset,
 unsigned int comedi_write_array_to_buffer(struct comedi_subdevice *s,
 					  const void *data,
 					  unsigned int num_bytes);
-unsigned int comedi_read_array_from_buffer(struct comedi_subdevice *s,
-					   void *data, unsigned int num_bytes);
 unsigned int comedi_buf_read_samples(struct comedi_subdevice *s,
 				     void *data, unsigned int nsamples);