Merge branch 'jk/unused-parameter'

Mark-up unused parameters in the code so that we can eventually
enable -Wunused-parameter by default.

* jk/unused-parameter:
  t/helper: mark unused callback void data parameters
  tag: mark unused parameters in each_tag_name_fn callbacks
  rev-parse: mark unused parameter in for_each_abbrev callback
  replace: mark unused parameter in each_mergetag_fn callback
  replace: mark unused parameter in ref callback
  merge-tree: mark unused parameter in traverse callback
  fsck: mark unused parameters in various fsck callbacks
  revisions: drop unused "opt" parameter in "tweak" callbacks
  count-objects: mark unused parameter in alternates callback
  am: mark unused keep_cr parameters
  http-push: mark unused parameter in xml callback
  http: mark unused parameters in curl callbacks
  do_for_each_ref_helper(): mark unused repository parameter
  test-ref-store: drop unimplemented reflog-expire command

1 files changed, 2 insertions, 1 deletions

diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index 84b68304ed..32505255a0 100644
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -215,7 +215,8 @@ static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf)
  * Verify its reachability and validity recursively and write it out.
  */
 static int check_object(struct object *obj, enum object_type type,
-			void *data, struct fsck_options *options)
+			void *data UNUSED,
+			struct fsck_options *options UNUSED)
 {
 	struct obj_buffer *obj_buf;