diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
index f8462024061563c5bc02e16ba27e4c49badb4c4b..61ac527f884ff70ed92f31df69200f845c0d9e08 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -488,44 +488,40 @@ u32 mite_bytes_in_transit(struct mite_channel *mite_chan)
 EXPORT_SYMBOL_GPL(mite_bytes_in_transit);
 
 /* returns lower bound for number of bytes transferred from device to memory */
-u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan)
+static u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan)
 {
 	u32 device_byte_count;
 
 	device_byte_count = mite_device_bytes_transferred(mite_chan);
 	return device_byte_count - mite_bytes_in_transit(mite_chan);
 }
-EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_lb);
 
 /* returns upper bound for number of bytes transferred from device to memory */
-u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan)
+static u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan)
 {
 	u32 in_transit_count;
 
 	in_transit_count = mite_bytes_in_transit(mite_chan);
 	return mite_device_bytes_transferred(mite_chan) - in_transit_count;
 }
-EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_ub);
 
 /* returns lower bound for number of bytes read from memory to device */
-u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan)
+static u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan)
 {
 	u32 device_byte_count;
 
 	device_byte_count = mite_device_bytes_transferred(mite_chan);
 	return device_byte_count + mite_bytes_in_transit(mite_chan);
 }
-EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_lb);
 
 /* returns upper bound for number of bytes read from memory to device */
-u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan)
+static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan)
 {
 	u32 in_transit_count;
 
 	in_transit_count = mite_bytes_in_transit(mite_chan);
 	return mite_device_bytes_transferred(mite_chan) + in_transit_count;
 }
-EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub);
 
 void mite_dma_disarm(struct mite_channel *mite_chan)
 {
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
index 90034762bc765bb866a2980dd41bde0c668187bd..583c60fa446043221e16e37f1536b04a23b5c3c6 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -98,10 +98,6 @@ int mite_sync_input_dma(struct mite_channel *mite_chan,
 			struct comedi_subdevice *s);
 int mite_sync_output_dma(struct mite_channel *mite_chan,
 			 struct comedi_subdevice *s);
-u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan);
-u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan);
-u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan);
-u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan);
 u32 mite_bytes_in_transit(struct mite_channel *mite_chan);
 unsigned int mite_get_status(struct mite_channel *mite_chan);
 int mite_done(struct mite_channel *mite_chan);