refs: mark unused each_ref_fn parameters

Functions used with for_each_ref(), etc, need to conform to the
each_ref_fn interface. But most of them don't need every parameter;
let's annotate the unused ones to quiet -Wunused-parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/walker.c b/walker.c
index c5e2921979..f945d021f8 100644
--- a/walker.c
+++ b/walker.c
@@ -215,8 +215,10 @@ static int interpret_target(struct walker *walker, char *target, struct object_i
 	return -1;
 }
 
-static int mark_complete(const char *path, const struct object_id *oid,
-			 int flag, void *cb_data)
+static int mark_complete(const char *UNUSED(path),
+			 const struct object_id *oid,
+			 int UNUSED(flag),
+			 void *UNUSED(cb_data))
 {
 	struct commit *commit = lookup_commit_reference_gently(the_repository,
 							       oid, 1);