staging: comedi: don't expose comedi_get_{read, write}_subdevice

These two inline helper function in comedidev.h are only used in
comedi_fops.c. They return information that should only be used
by the comedi core.

Move both functions to comedi_fops.c so they aren't exposed to
the comedi drivers. Also, remove the inline tag and let the
compiler figure it out.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 91b9e93321e2..38de7f70f0b8 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -90,6 +90,26 @@ static DEFINE_SPINLOCK(comedi_file_info_table_lock);
 static struct comedi_device_file_info
 *comedi_file_info_table[COMEDI_NUM_MINORS];
 
+static struct comedi_subdevice *
+comedi_get_read_subdevice(const struct comedi_device_file_info *info)
+{
+	if (info->read_subdevice)
+		return info->read_subdevice;
+	if (info->device == NULL)
+		return NULL;
+	return info->device->read_subdev;
+}
+
+static struct comedi_subdevice *
+comedi_get_write_subdevice(const struct comedi_device_file_info *info)
+{
+	if (info->write_subdevice)
+		return info->write_subdevice;
+	if (info->device == NULL)
+		return NULL;
+	return info->device->write_subdev;
+}
+
 static int resize_async_buffer(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_async *async, unsigned new_size)