refs: mark unused reflog callback parameters

Functions used with for_each_reflog_ent() need to conform to a
particular interface, but not every function needs all of the
parameters. Mark the unused ones to make -Wunused-parameter happy.

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

10 files changed, 55 insertions, 32 deletions

diff --git a/builtin/fsck.c b/builtin/fsck.c
index 36f1524..31d3da8 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -488,8 +488,9 @@ static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
 }
 
 static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid,
-		const char *email, timestamp_t timestamp, int tz,
-		const char *message, void *cb_data)
+				  const char *UNUSED(email),
+				  timestamp_t timestamp, int UNUSED(tz),
+				  const char *UNUSED(message), void *cb_data)
 {
 	const char *refname = cb_data;
 
diff --git a/builtin/stash.c b/builtin/stash.c
index 30fa101..a741b92 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -638,9 +638,12 @@ cleanup:
 	return ret;
 }
 
-static int reject_reflog_ent(struct object_id *ooid, struct object_id *noid,
-			     const char *email, timestamp_t timestamp, int tz,
-			     const char *message, void *cb_data)
+static int reject_reflog_ent(struct object_id *UNUSED(ooid),
+			     struct object_id *UNUSED(noid),
+			     const char *UNUSED(email),
+			     timestamp_t UNUSED(timestamp),
+			     int UNUSED(tz), const char *UNUSED(message),
+			     void *UNUSED(cb_data))
 {
 	return 1;
 }
diff --git a/commit.c b/commit.c
index 0db461f..cb20082 100644
--- a/commit.c
+++ b/commit.c
@@ -951,8 +951,9 @@ static void add_one_commit(struct object_id *oid, struct rev_collect *revs)
 }
 
 static int collect_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
-				  const char *ident, timestamp_t timestamp,
-				  int tz, const char *message, void *cbdata)
+				  const char *UNUSED(ident),
+				  timestamp_t UNUSED(timestamp), int UNUSED(tz),
+				  const char *UNUSED(message), void *cbdata)
 {
 	struct rev_collect *revs = cbdata;
 
diff --git a/object-name.c b/object-name.c
index 0526449..3f7fce8 100644
--- a/object-name.c
+++ b/object-name.c
@@ -1385,8 +1385,11 @@ struct grab_nth_branch_switch_cbdata {
 	struct strbuf *sb;
 };
 
-static int grab_nth_branch_switch(struct object_id *ooid, struct object_id *noid,
-				  const char *email, timestamp_t timestamp, int tz,
+static int grab_nth_branch_switch(struct object_id *UNUSED(ooid),
+				  struct object_id *UNUSED(noid),
+				  const char *UNUSED(email),
+				  timestamp_t UNUSED(timestamp),
+				  int UNUSED(tz),
 				  const char *message, void *cb_data)
 {
 	struct grab_nth_branch_switch_cbdata *cb = cb_data;
diff --git a/reflog.c b/reflog.c
index ee8aaa7..56ea3ba 100644
--- a/reflog.c
+++ b/reflog.c
@@ -240,8 +240,9 @@ static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit
  * Return true iff the specified reflog entry should be expired.
  */
 int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid,
-			     const char *email, timestamp_t timestamp, int tz,
-			     const char *message, void *cb_data)
+			     const char *UNUSED(email),
+			     timestamp_t timestamp, int UNUSED(tz),
+			     const char *UNUSED(message), void *cb_data)
 {
 	struct expire_reflog_policy_cb *cb = cb_data;
 	struct commit *old_commit, *new_commit;
@@ -379,9 +380,11 @@ void reflog_expiry_cleanup(void *cb_data)
 	}
 }
 
-int count_reflog_ent(struct object_id *ooid, struct object_id *noid,
-		     const char *email, timestamp_t timestamp, int tz,
-		     const char *message, void *cb_data)
+int count_reflog_ent(struct object_id *UNUSED(ooid),
+		     struct object_id *UNUSED(noid),
+		     const char *UNUSED(email),
+		     timestamp_t timestamp, int UNUSED(tz),
+		     const char *UNUSED(message), void *cb_data)
 {
 	struct cmd_reflog_expire_cb *cb = cb_data;
 	if (!cb->expire_total || timestamp < cb->expire_total)
diff --git a/refs.c b/refs.c
index 34373e8..38b1165 100644
--- a/refs.c
+++ b/refs.c
@@ -894,8 +894,9 @@ static void set_read_ref_cutoffs(struct read_ref_at_cb *cb,
 }
 
 static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid,
-		const char *email, timestamp_t timestamp, int tz,
-		const char *message, void *cb_data)
+			   const char *UNUSED(email),
+			   timestamp_t timestamp, int tz,
+			   const char *message, void *cb_data)
 {
 	struct read_ref_at_cb *cb = cb_data;
 	int reached_count;
@@ -950,8 +951,9 @@ static int read_ref_at_ent_newest(struct object_id *UNUSED(ooid),
 }
 
 static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid,
-				  const char *email, timestamp_t timestamp,
-				  int tz, const char *message, void *cb_data)
+				  const char *UNUSED(email),
+				  timestamp_t timestamp, int tz,
+				  const char *message, void *cb_data)
 {
 	struct read_ref_at_cb *cb = cb_data;
 
diff --git a/remote.c b/remote.c
index 723aa88..029fc63 100644
--- a/remote.c
+++ b/remote.c
@@ -2577,19 +2577,22 @@ struct check_and_collect_until_cb_data {
 };
 
 /* Get the timestamp of the latest entry. */
-static int peek_reflog(struct object_id *o_oid, struct object_id *n_oid,
-		       const char *ident, timestamp_t timestamp,
-		       int tz, const char *message, void *cb_data)
+static int peek_reflog(struct object_id *UNUSED(o_oid),
+		       struct object_id *UNUSED(n_oid),
+		       const char *UNUSED(ident),
+		       timestamp_t timestamp, int UNUSED(tz),
+		       const char *UNUSED(message), void *cb_data)
 {
 	timestamp_t *ts = cb_data;
 	*ts = timestamp;
 	return 1;
 }
 
-static int check_and_collect_until(struct object_id *o_oid,
+static int check_and_collect_until(struct object_id *UNUSED(o_oid),
 				   struct object_id *n_oid,
-				   const char *ident, timestamp_t timestamp,
-				   int tz, const char *message, void *cb_data)
+				   const char *UNUSED(ident),
+				   timestamp_t timestamp, int UNUSED(tz),
+				   const char *UNUSED(message), void *cb_data)
 {
 	struct commit *commit;
 	struct check_and_collect_until_cb_data *cb = cb_data;
diff --git a/revision.c b/revision.c
index 23c2bba..6c7250d 100644
--- a/revision.c
+++ b/revision.c
@@ -1619,8 +1619,11 @@ static void handle_one_reflog_commit(struct object_id *oid, void *cb_data)
 }
 
 static int handle_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
-		const char *email, timestamp_t timestamp, int tz,
-		const char *message, void *cb_data)
+				 const char *UNUSED(email),
+				 timestamp_t UNUSED(timestamp),
+				 int UNUSED(tz),
+				 const char *UNUSED(message),
+				 void *cb_data)
 {
 	handle_one_reflog_commit(ooid, cb_data);
 	handle_one_reflog_commit(noid, cb_data);
diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
index a98775d..8f930ad 100644
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -207,7 +207,7 @@ static int cmd_for_each_reflog(struct ref_store *refs, const char **argv)
 
 static int each_reflog(struct object_id *old_oid, struct object_id *new_oid,
 		       const char *committer, timestamp_t timestamp,
-		       int tz, const char *msg, void *cb_data)
+		       int tz, const char *msg, void *UNUSED(cb_data))
 {
 	printf("%s %s %s %" PRItime " %+05d%s%s", oid_to_hex(old_oid),
 	       oid_to_hex(new_oid), committer, timestamp, tz,
diff --git a/wt-status.c b/wt-status.c
index 867e3e4..38d0900 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -947,9 +947,11 @@ static void wt_longstatus_print_changed(struct wt_status *s)
 	wt_longstatus_print_trailer(s);
 }
 
-static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
-			    const char *email, timestamp_t timestamp, int tz,
-			    const char *message, void *cb_data)
+static int stash_count_refs(struct object_id *UNUSED(ooid),
+			    struct object_id *UNUSED(noid),
+			    const char *UNUSED(email),
+			    timestamp_t UNUSED(timestamp), int UNUSED(tz),
+			    const char *UNUSED(message), void *cb_data)
 {
 	int *c = cb_data;
 	(*c)++;
@@ -1612,8 +1614,10 @@ struct grab_1st_switch_cbdata {
 	struct object_id noid;
 };
 
-static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
-			   const char *email, timestamp_t timestamp, int tz,
+static int grab_1st_switch(struct object_id *UNUSED(ooid),
+			   struct object_id *noid,
+			   const char *UNUSED(email),
+			   timestamp_t UNUSED(timestamp), int UNUSED(tz),
 			   const char *message, void *cb_data)
 {
 	struct grab_1st_switch_cbdata *cb = cb_data;