[PATCH] staging: greybus: remove unused conn argument from loopback macro

[Hungyu Lin]

The 'conn' argument in the gb_dev_loopback_ro_attr macro is not
used in the macro body. Remove it to clean up the code and fix
the checkpatch warning.

Signed-off-by: Hungyu Lin <dennylin0707@xxxxxxxxx>
---
 drivers/staging/greybus/loopback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index aa9c73cb0..34e79e99c 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -193,7 +193,7 @@ static ssize_t field##_store(struct device *dev,			\
 }									\
 static DEVICE_ATTR_RW(field)
 
-#define gb_dev_loopback_ro_attr(field, conn)				\
+#define gb_dev_loopback_ro_attr(field)				\
 static ssize_t field##_show(struct device *dev,		\
 			    struct device_attribute *attr,		\
 			    char *buf)					\
-- 
2.34.1