[RFC PATCH] staging: comedi: quatech_daqp_cs: daqp_ai_get_sample() can be static

[kbuild test robot <lkp@xxxxxxxxx>]

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 quatech_daqp_cs.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index 23c79e3..96471fc 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -169,8 +169,8 @@ static int daqp_ai_cancel(struct comedi_device *dev,
 	return 0;
 }
 
-unsigned int daqp_ai_get_sample(struct comedi_device *dev,
-				struct comedi_subdevice *s)
+static unsigned int daqp_ai_get_sample(struct comedi_device *dev,
+				       struct comedi_subdevice *s)
 {
 	unsigned int val;
 
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