git-compat-util.h: use "UNUSED", not "UNUSED(var)"

As reported in [1] the "UNUSED(var)" macro introduced in
2174b8c75de (Merge branch 'jk/unused-annotation' into next,
2022-08-24) breaks coccinelle's parsing of our sources in files where
it occurs.

Let's instead partially go with the approach suggested in [2] of
making this not take an argument. As noted in [1] "coccinelle" will
ignore such tokens in argument lists that it doesn't know about, and
it's less of a surprise to syntax highlighters.

This undoes the "help us notice when a parameter marked as unused is
actually use" part of 9b240347543 (git-compat-util: add UNUSED macro,
2022-08-19), a subsequent commit will further tweak the macro to
implement a replacement for that functionality.

1. https://lore.kernel.org/git/[e-mail]/
2. https://lore.kernel.org/git/[e-mail]/

Signed-off-by: Ævar Arnfjörð Bjarmason <[e-mail]>
Signed-off-by: Junio C Hamano <[e-mail]>

add-interactive.c

···
 	struct file_item *item;
 };
 
-static int pathname_entry_cmp(const void *UNUSED(cmp_data),
+static int pathname_entry_cmp(const void *cmp_data UNUSED,
 			      const struct hashmap_entry *he1,
 			      const struct hashmap_entry *he2,
 			      const void *name)

archive-tar.c

···
 }
 
 static int tar_filter_config(const char *var, const char *value,
-			     void *UNUSED(data))
+			     void *data UNUSED)
 {
 	struct archiver *ar;
 	const char *name;
···
 	return tar_filter_config(var, value, cb);
 }
 
-static int write_tar_archive(const struct archiver *UNUSED(ar),
+static int write_tar_archive(const struct archiver *ar UNUSED,
 			     struct archiver_args *args)
 {
 	int err = 0;

archive-zip.c

···
 }
 
 static int archive_zip_config(const char *var, const char *value,
-			      void *UNUSED(data))
+			      void *data UNUSED)
 {
 	return userdiff_config(var, value);
 }
 
-static int write_zip_archive(const struct archiver *UNUSED(ar),
+static int write_zip_archive(const struct archiver *ar UNUSED,
 			     struct archiver_args *args)
 {
 	int err;

archive.c

···
 	struct archiver_args *args;
 };
 
-static int reject_entry(const struct object_id *UNUSED(oid),
+static int reject_entry(const struct object_id *oid UNUSED,
 			struct strbuf *base,
 			const char *filename, unsigned mode,
 			void *context)

attr.c

···
 };
 
 /* attr_hashmap comparison function */
-static int attr_hash_entry_cmp(const void *UNUSED(cmp_data),
+static int attr_hash_entry_cmp(const void *cmp_data UNUSED,
 			       const struct hashmap_entry *eptr,
 			       const struct hashmap_entry *entry_or_key,
-			       const void *UNUSED(keydata))
+			       const void *keydata UNUSED)
 {
 	const struct attr_hash_entry *a, *b;
 

bisect.c

···
 }
 
 static int register_ref(const char *refname, const struct object_id *oid,
-			int UNUSED(flags), void *UNUSED(cb_data))
+			int flags UNUSED, void *cb_data UNUSED)
 {
 	struct strbuf good_prefix = STRBUF_INIT;
 	strbuf_addstr(&good_prefix, term_good);
···
 }
 
 static int mark_for_removal(const char *refname,
-			    const struct object_id *UNUSED(oid),
-			    int UNUSED(flag), void *cb_data)
+			    const struct object_id *oid UNUSED,
+			    int flag UNUSED, void *cb_data)
 {
 	struct string_list *refs = cb_data;
 	char *ref = xstrfmt("refs/bisect%s", refname);

bloom.c

···
 	init_bloom_filter_slab(&bloom_filters);
 }
 
-static int pathmap_cmp(const void *UNUSED(hashmap_cmp_fn_data),
+static int pathmap_cmp(const void *hashmap_cmp_fn_data UNUSED,
 		       const struct hashmap_entry *eptr,
 		       const struct hashmap_entry *entry_or_key,
-		       const void *UNUSED(keydata))
+		       const void *keydata UNUSED)
 {
 	const struct pathmap_hash_entry *e1, *e2;
 

builtin/am.c

···
 	return 0;
 }
 
-static int git_am_config(const char *k, const char *v, void *UNUSED(cb))
+static int git_am_config(const char *k, const char *v, void *cb UNUSED)
 {
 	int status;
 

builtin/bisect--helper.c

···
 	return 0;
 }
 
-static int inc_nr(const char *UNUSED(refname),
-		  const struct object_id *UNUSED(oid),
-		  int UNUSED(flag), void *cb_data)
+static int inc_nr(const char *refname UNUSED,
+		  const struct object_id *oid UNUSED,
+		  int flag UNUSED, void *cb_data)
 {
 	unsigned int *nr = (unsigned int *)cb_data;
 	(*nr)++;
···
 }
 
 static int add_bisect_ref(const char *refname, const struct object_id *oid,
-			  int UNUSED(flags), void *cb)
+			  int flags UNUSED, void *cb)
 {
 	struct add_bisect_ref_data *data = cb;
 
···
 	return res;
 }
 
-static int get_first_good(const char *UNUSED(refname),
+static int get_first_good(const char *refname UNUSED,
 			  const struct object_id *oid,
-			  int UNUSED(flag), void *cb_data)
+			  int flag UNUSED, void *cb_data)
 {
 	oidcpy(cb_data, oid);
 	return 1;

builtin/checkout.c

···
 }
 
 static int update_some(const struct object_id *oid, struct strbuf *base,
-		       const char *pathname, unsigned mode, void *UNUSED(context))
+		       const char *pathname, unsigned mode, void *context UNUSED)
 {
 	int len;
 	struct cache_entry *ce;
···
 
 static int add_pending_uninteresting_ref(const char *refname,
 					 const struct object_id *oid,
-					 int UNUSED(flags), void *cb_data)
+					 int flags UNUSED, void *cb_data)
 {
 	add_pending_oid(cb_data, refname, oid, UNINTERESTING);
 	return 0;

builtin/commit-graph.c

···
 }
 
 static int git_commit_graph_write_config(const char *var, const char *value,
-					 void *UNUSED(cb))
+					 void *cb UNUSED)
 {
 	if (!strcmp(var, "commitgraph.maxnewfilters"))
 		write_opts.max_new_filters = git_config_int(var, value);

builtin/config.c

···
 }
 
 static int show_all_config(const char *key_, const char *value_,
-			   void *UNUSED(cb))
+			   void *cb UNUSED)
 {
 	if (show_origin || show_scope) {
 		struct strbuf buf = STRBUF_INIT;
···
 static char parsed_color[COLOR_MAXLEN];
 
 static int git_get_color_config(const char *var, const char *value,
-				void *UNUSED(cb))
+				void *cb UNUSED)
 {
 	if (!strcmp(var, get_color_slot)) {
 		if (!value)
···
 static int get_diff_color_found;
 static int get_color_ui_found;
 static int git_get_colorbool_config(const char *var, const char *value,
-				    void *UNUSED(data))
+				    void *data UNUSED)
 {
 	if (!strcmp(var, get_colorbool_slot))
 		get_colorbool_found = git_config_colorbool(var, value);

builtin/describe.c

···
 	N_("head"), N_("lightweight"), N_("annotated"),
 };
 
-static int commit_name_neq(const void *UNUSED(cmp_data),
+static int commit_name_neq(const void *cmp_data UNUSED,
 			   const struct hashmap_entry *eptr,
 			   const struct hashmap_entry *entry_or_key,
 			   const void *peeled)
···
 }
 
 static int get_name(const char *path, const struct object_id *oid,
-		    int UNUSED(flag), void *UNUSED(cb_data))
+		    int flag UNUSED, void *cb_data UNUSED)
 {
 	int is_tag = 0;
 	struct object_id peeled;

builtin/difftool.c

···
 	char path[FLEX_ARRAY];
 };
 
-static int working_tree_entry_cmp(const void *UNUSED(cmp_data),
+static int working_tree_entry_cmp(const void *cmp_data UNUSED,
 				  const struct hashmap_entry *eptr,
 				  const struct hashmap_entry *entry_or_key,
-				  const void *UNUSED(keydata))
+				  const void *keydata UNUSED)
 {
 	const struct working_tree_entry *a, *b;
 
···
 	const char path[FLEX_ARRAY];
 };
 
-static int pair_cmp(const void *UNUSED(cmp_data),
+static int pair_cmp(const void *cmp_data UNUSED,
 		    const struct hashmap_entry *eptr,
 		    const struct hashmap_entry *entry_or_key,
-		    const void *UNUSED(keydata))
+		    const void *keydata UNUSED)
 {
 	const struct pair_entry *a, *b;
 
···
 	char path[FLEX_ARRAY];
 };
 
-static int path_entry_cmp(const void *UNUSED(cmp_data),
+static int path_entry_cmp(const void *cmp_data UNUSED,
 			  const struct hashmap_entry *eptr,
 			  const struct hashmap_entry *entry_or_key,
 			  const void *key)

builtin/fast-export.c

···
 	size_t orig_len;
 };
 
-static int anonymized_entry_cmp(const void *UNUSED(cmp_data),
+static int anonymized_entry_cmp(const void *cmp_data UNUSED,
 				const struct hashmap_entry *eptr,
 				const struct hashmap_entry *entry_or_key,
 				const void *keydata)

builtin/fast-import.c

···
 		depth : DEPTH_BITS;
 };
 
-static int object_entry_hashcmp(const void *UNUSED(map_data),
+static int object_entry_hashcmp(const void *map_data UNUSED,
 				const struct hashmap_entry *eptr,
 				const struct hashmap_entry *entry_or_key,
 				const void *keydata)

builtin/fetch.c

···
 	char refname[FLEX_ARRAY];
 };
 
-static int refname_hash_entry_cmp(const void *UNUSED(hashmap_cmp_fn_data),
+static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data UNUSED,
 				  const struct hashmap_entry *eptr,
 				  const struct hashmap_entry *entry_or_key,
 				  const void *keydata)
···
 
 static int add_one_refname(const char *refname,
 			   const struct object_id *oid,
-			   int UNUSED(flag), void *cbdata)
+			   int flag UNUSED, void *cbdata)
 {
 	struct hashmap *refname_map = cbdata;
 
···
 }
 
 
-static int add_oid(const char *UNUSED(refname),
+static int add_oid(const char *refname UNUSED,
 		   const struct object_id *oid,
-		   int UNUSED(flags), void *cb_data)
+		   int flags UNUSED, void *cb_data)
 {
 	struct oid_array *oids = cb_data;
 

builtin/fsck.c

···
 }
 
 static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid,
-				  const char *UNUSED(email),
-				  timestamp_t timestamp, int UNUSED(tz),
-				  const char *UNUSED(message), void *cb_data)
+				  const char *email UNUSED,
+				  timestamp_t timestamp, int tz UNUSED,
+				  const char *message UNUSED, void *cb_data)
 {
 	const char *refname = cb_data;
 
···
 }
 
 static int fsck_handle_reflog(const char *logname,
-			      const struct object_id *UNUSED(oid),
-			      int UNUSED(flag), void *cb_data)
+			      const struct object_id *oid UNUSED,
+			      int flag UNUSED, void *cb_data)
 {
 	struct strbuf refname = STRBUF_INIT;
 
···
 }
 
 static int fsck_handle_ref(const char *refname, const struct object_id *oid,
-			   int UNUSED(flag), void *UNUSED(cb_data))
+			   int flag UNUSED, void *cb_data UNUSED)
 {
 	struct object *obj;
 

builtin/gc.c

···
 	int limit;
 };
 
-static int dfs_on_ref(const char *UNUSED(refname),
+static int dfs_on_ref(const char *refname UNUSED,
 		      const struct object_id *oid,
-		      int UNUSED(flags),
+		      int flags UNUSED,
 		      void *cb_data)
 {
 	struct cg_auto_data *data = (struct cg_auto_data *)cb_data;

builtin/log.c

···
 	return 0;
 }
 
-static int show_tree_object(const struct object_id *UNUSED(oid),
-			    struct strbuf *UNUSED(base),
+static int show_tree_object(const struct object_id *oid UNUSED,
+			    struct strbuf *base UNUSED,
 			    const char *pathname, unsigned mode,
 			    void *context)
 {

builtin/ls-tree.c

···
 }
 
 static int show_tree_fmt(const struct object_id *oid, struct strbuf *base,
-			 const char *pathname, unsigned mode, void *UNUSED(context))
+			 const char *pathname, unsigned mode, void *context UNUSED)
 {
 	size_t baselen;
 	int recurse = 0;
···
 
 static int show_tree_default(const struct object_id *oid, struct strbuf *base,
 			     const char *pathname, unsigned mode,
-			     void *UNUSED(context))
+			     void *context UNUSED)
 {
 	int early;
 	int recurse;
···
 
 static int show_tree_long(const struct object_id *oid, struct strbuf *base,
 			  const char *pathname, unsigned mode,
-			  void *UNUSED(context))
+			  void *context UNUSED)
 {
 	int early;
 	int recurse;
···
 
 static int show_tree_name_only(const struct object_id *oid, struct strbuf *base,
 			       const char *pathname, unsigned mode,
-			       void *UNUSED(context))
+			       void *context UNUSED)
 {
 	int early;
 	int recurse;
···
 
 static int show_tree_object(const struct object_id *oid, struct strbuf *base,
 			    const char *pathname, unsigned mode,
-			    void *UNUSED(context))
+			    void *context UNUSED)
 {
 	int early;
 	int recurse;

builtin/multi-pack-index.c

···
 }
 
 static int git_multi_pack_index_write_config(const char *var, const char *value,
-					     void *UNUSED(cb))
+					     void *cb UNUSED)
 {
 	if (!strcmp(var, "pack.writebitmaphashcache")) {
 		if (git_config_bool(var, value))

builtin/name-rev.c

···
 }
 
 static int name_ref(const char *path, const struct object_id *oid,
-		    int UNUSED(flags), void *cb_data)
+		    int flags UNUSED, void *cb_data)
 {
 	struct object *o = parse_object(the_repository, oid);
 	struct name_ref_data *data = cb_data;

builtin/pack-objects.c

···
 	return WRITE_ONE_WRITTEN;
 }
 
-static int mark_tagged(const char *UNUSED(path), const struct object_id *oid,
-		       int UNUSED(flag), void *UNUSED(cb_data))
+static int mark_tagged(const char *path UNUSED, const struct object_id *oid,
+		       int flag UNUSED, void *cb_data UNUSED)
 {
 	struct object_id peeled;
 	struct object_entry *entry = packlist_find(&to_pack, oid);
···
 	}
 }
 
-static int add_ref_tag(const char *UNUSED(tag), const struct object_id *oid,
-		       int UNUSED(flag), void *UNUSED(cb_data))
+static int add_ref_tag(const char *tag UNUSED, const struct object_id *oid,
+		       int flag UNUSED, void *cb_data UNUSED)
 {
 	struct object_id peeled;
 
···
 
 static int mark_bitmap_preferred_tip(const char *refname,
 				     const struct object_id *oid,
-				     int UNUSED(flags),
-				     void *UNUSED(data))
+				     int flags UNUSED,
+				     void *data UNUSED)
 {
 	struct object_id peeled;
 	struct object *object;

builtin/receive-pack.c

···
 }
 
 static int show_ref_cb(const char *path_full, const struct object_id *oid,
-		       int UNUSED(flag), void *data)
+		       int flag UNUSED, void *data)
 {
 	struct oidset *seen = data;
 	const char *path = strip_namespace(path_full);
···
 	va_end(params);
 }
 
-static int copy_to_sideband(int in, int UNUSED(out), void *UNUSED(arg))
+static int copy_to_sideband(int in, int out UNUSED, void *arg UNUSED)
 {
 	char data[128];
 	int keepalive_active = 0;

builtin/reflog.c

···
 	struct string_list reflogs;
 };
 
-static int collect_reflog(const char *ref, const struct object_id *UNUSED(oid),
-			  int UNUSED(flags), void *cb_data)
+static int collect_reflog(const char *ref, const struct object_id *oid UNUSED,
+			  int flags UNUSED, void *cb_data)
 {
 	struct worktree_reflogs *cb = cb_data;
 	struct worktree *worktree = cb->worktree;

builtin/remote.c

···
 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 
 static int config_read_branches(const char *key, const char *value,
-				void *UNUSED(data))
+				void *data UNUSED)
 {
 	const char *orig_key = key;
 	char *name;
···
 };
 
 static int add_branch_for_removal(const char *refname,
-				  const struct object_id *UNUSED(oid),
-				  int UNUSED(flags), void *cb_data)
+				  const struct object_id *oid UNUSED,
+				  int flags UNUSED, void *cb_data)
 {
 	struct branches_for_remote *branches = cb_data;
 	struct refspec_item refspec;
···
 };
 
 static int read_remote_branches(const char *refname,
-				const struct object_id *UNUSED(oid),
-				int UNUSED(flags), void *cb_data)
+				const struct object_id *oid UNUSED,
+				int flags UNUSED, void *cb_data)
 {
 	struct rename_info *rename = cb_data;
 	struct strbuf buf = STRBUF_INIT;
···
 }
 
 static int append_ref_to_tracked_list(const char *refname,
-				      const struct object_id *UNUSED(oid),
+				      const struct object_id *oid UNUSED,
 				      int flags, void *cb_data)
 {
 	struct ref_states *states = cb_data;
···
 	return result;
 }
 
-static int get_remote_default(const char *key, const char *UNUSED(value), void *priv)
+static int get_remote_default(const char *key, const char *value UNUSED, void *priv)
 {
 	if (strcmp(key, "remotes.default") == 0) {
 		int *found = priv;

builtin/repack.c

···
 	int preferred;
 };
 
-static int midx_snapshot_ref_one(const char *UNUSED(refname),
+static int midx_snapshot_ref_one(const char *refname UNUSED,
 				 const struct object_id *oid,
-				 int UNUSED(flag), void *_data)
+				 int flag UNUSED, void *_data)
 {
 	struct midx_snapshot_ref_data *data = _data;
 	struct object_id peeled;

builtin/rev-parse.c

···
 }
 
 static int show_reference(const char *refname, const struct object_id *oid,
-			  int UNUSED(flag), void *UNUSED(cb_data))
+			  int flag UNUSED, void *cb_data UNUSED)
 {
 	if (ref_excluded(ref_excludes, refname))
 		return 0;
···
 }
 
 static int anti_reference(const char *refname, const struct object_id *oid,
-			  int UNUSED(flag), void *UNUSED(cb_data))
+			  int flag UNUSED, void *cb_data UNUSED)
 {
 	show_rev(REVERSED, oid, refname);
 	return 0;

builtin/show-branch.c

···
 }
 
 static int append_head_ref(const char *refname, const struct object_id *oid,
-			   int UNUSED(flag), void *UNUSED(cb_data))
+			   int flag UNUSED, void *cb_data UNUSED)
 {
 	struct object_id tmp;
 	int ofs = 11;
···
 }
 
 static int append_remote_ref(const char *refname, const struct object_id *oid,
-			     int UNUSED(flag), void *UNUSED(cb_data))
+			     int flag UNUSED, void *cb_data UNUSED)
 {
 	struct object_id tmp;
 	int ofs = 13;
···
 }
 
 static int append_tag_ref(const char *refname, const struct object_id *oid,
-			  int UNUSED(flag), void *UNUSED(cb_data))
+			  int flag UNUSED, void *cb_data UNUSED)
 {
 	if (!starts_with(refname, "refs/tags/"))
 		return 0;

builtin/show-ref.c

···
 }
 
 static int show_ref(const char *refname, const struct object_id *oid,
-		    int UNUSED(flag), void *UNUSED(cbdata))
+		    int flag UNUSED, void *cbdata UNUSED)
 {
 	if (show_head && !strcmp(refname, "HEAD"))
 		goto match;
···
 }
 
 static int add_existing(const char *refname,
-			const struct object_id *UNUSED(oid),
-			int UNUSED(flag), void *cbdata)
+			const struct object_id *oid UNUSED,
+			int flag UNUSED, void *cbdata)
 {
 	struct string_list *list = (struct string_list *)cbdata;
 	string_list_insert(list, refname);

builtin/stash.c

···
 	return ret;
 }
 
-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))
+static int reject_reflog_ent(struct object_id *ooid UNUSED,
+			     struct object_id *noid UNUSED,
+			     const char *email UNUSED,
+			     timestamp_t timestamp UNUSED,
+			     int tz UNUSED, const char *message UNUSED,
+			     void *cb_data UNUSED)
 {
 	return 1;
 }

builtin/submodule--helper.c

···
 	printf("\n");
 }
 
-static int handle_submodule_head_ref(const char *UNUSED(refname),
+static int handle_submodule_head_ref(const char *refname UNUSED,
 				     const struct object_id *oid,
-				     int UNUSED(flags),
+				     int flags UNUSED,
 				     void *cb_data)
 {
 	struct object_id *output = cb_data;

color.c

···
 	return var;
 }
 
-int git_color_config(const char *var, const char *value, void *UNUSED(cb))
+int git_color_config(const char *var, const char *value, void *cb UNUSED)
 {
 	if (!strcmp(var, "color.ui")) {
 		git_use_color_default = git_config_colorbool(var, value);

commit-graph.c

···
 	struct progress *progress;
 };
 
-static int add_ref_to_set(const char *UNUSED(refname),
+static int add_ref_to_set(const char *refname UNUSED,
 			  const struct object_id *oid,
-			  int UNUSED(flags), void *cb_data)
+			  int flags UNUSED, void *cb_data)
 {
 	struct object_id peeled;
 	struct refs_cb_data *data = (struct refs_cb_data *)cb_data;

commit.c

···
 }
 
 static int collect_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
-				  const char *UNUSED(ident),
-				  timestamp_t UNUSED(timestamp), int UNUSED(tz),
-				  const char *UNUSED(message), void *cbdata)
+				  const char *ident UNUSED,
+				  timestamp_t timestamp UNUSED, int tz UNUSED,
+				  const char *message UNUSED, void *cbdata)
 {
 	struct rev_collect *revs = cbdata;
 

compat/terminal.c

···
 	char sequence[FLEX_ARRAY];
 };
 
-static int sequence_entry_cmp(const void *UNUSED(hashmap_cmp_fn_data),
+static int sequence_entry_cmp(const void *hashmap_cmp_fn_data UNUSED,
 			      const struct escape_sequence_entry *e1,
 			      const struct escape_sequence_entry *e2,
 			      const void *keydata)

config.c

···
 	current_parsing_scope = store_scope;
 }
 
-static int forbid_remote_url(const char *var, const char *UNUSED(value),
-			     void *UNUSED(data))
+static int forbid_remote_url(const char *var, const char *value UNUSED,
+			     void *data UNUSED)
 {
 	const char *remote_name;
 	size_t remote_name_len;
···
 	return 0;
 }
 
-static int config_set_element_cmp(const void *UNUSED(cmp_data),
+static int config_set_element_cmp(const void *cmp_data UNUSED,
 				  const struct hashmap_entry *eptr,
 				  const struct hashmap_entry *entry_or_key,
-				  const void *UNUSED(keydata))
+				  const void *keydata UNUSED)
 {
 	const struct config_set_element *e1, *e2;
 

convert.c

···
 	const char *path;
 };
 
-static int filter_buffer_or_fd(int UNUSED(in), int out, void *data)
+static int filter_buffer_or_fd(int in UNUSED, int out, void *data)
 {
 	/*
 	 * Spawn cmd and feed the buffer contents through its stdin.
···
 	return 0;
 }
 
-static int read_convert_config(const char *var, const char *value, void *UNUSED(cb))
+static int read_convert_config(const char *var, const char *value, void *cb UNUSED)
 {
 	const char *key, *name;
 	size_t namelen;

delta-islands.c

···
 static unsigned int island_regexes_alloc, island_regexes_nr;
 static const char *core_island_name;
 
-static int island_config_callback(const char *k, const char *v, void *UNUSED(cb))
+static int island_config_callback(const char *k, const char *v, void *cb UNUSED)
 {
 	if (!strcmp(k, "pack.island")) {
 		struct strbuf re = STRBUF_INIT;
···
 }
 
 static int find_island_for_ref(const char *refname, const struct object_id *oid,
-			       int UNUSED(flags), void *UNUSED(data))
+			       int flags UNUSED, void *data UNUSED)
 {
 	/*
 	 * We should advertise 'ARRAY_SIZE(matches) - 2' as the max,

diff.c

···
 }
 
 int git_diff_heuristic_config(const char *var, const char *value,
-			      void *UNUSED(cb))
+			      void *cb UNUSED)
 {
 	if (!strcmp(var, "diff.indentheuristic"))
 		diff_indent_heuristic = git_config_bool(var, value);
···
 static int interned_diff_symbol_cmp(const void *hashmap_cmp_fn_data,
 				    const struct hashmap_entry *eptr,
 				    const struct hashmap_entry *entry_or_key,
-				    const void *UNUSED(keydata))
+				    const void *keydata UNUSED)
 {
 	const struct diff_options *diffopt = hashmap_cmp_fn_data;
 	const struct emitted_diff_symbol *a, *b;

dir.c

···
 	*patternlen = len;
 }
 
-int pl_hashmap_cmp(const void *UNUSED(cmp_data),
+int pl_hashmap_cmp(const void *cmp_data UNUSED,
 		   const struct hashmap_entry *a,
 		   const struct hashmap_entry *b,
-		   const void *UNUSED(key))
+		   const void *key UNUSED)
 {
 	const struct pattern_entry *ee1 =
 			container_of(a, struct pattern_entry, ent);

environment.c

···
 	setup_git_env(path);
 }
 
-static void update_relative_gitdir(const char *UNUSED(name),
+static void update_relative_gitdir(const char *name UNUSED,
 				   const char *old_cwd,
 				   const char *new_cwd,
-				   void *UNUSED(data))
+				   void *data UNUSED)
 {
 	char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir());
 	struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb();

fetch-pack.c

···
 	return 0;
 }
 
-static int rev_list_insert_ref_oid(const char *UNUSED(refname),
+static int rev_list_insert_ref_oid(const char *refname UNUSED,
 				   const struct object_id *oid,
-				   int UNUSED(flag),
+				   int flag UNUSED,
 				   void *cb_data)
 {
 	return rev_list_insert_ref(cb_data, oid);
···
 	return 0;
 }
 
-static int mark_complete_oid(const char *UNUSED(refname),
+static int mark_complete_oid(const char *refname UNUSED,
 			     const struct object_id *oid,
-			     int UNUSED(flag),
-			     void *UNUSED(cb_data))
+			     int flag UNUSED,
+			     void *cb_data UNUSED)
 {
 	return mark_complete(oid);
 }
···
 	return retval;
 }
 
-static int sideband_demux(int UNUSED(in), int out, void *data)
+static int sideband_demux(int in UNUSED, int out, void *data)
 {
 	int *xd = data;
 	int ret;

git-compat-util.h

···
 #define _SGI_SOURCE 1
 
 #if defined(__GNUC__)
-#define UNUSED(var) UNUSED_##var __attribute__((unused))
+#define UNUSED __attribute__((unused))
 #else
-#define UNUSED(var) UNUSED_##var
+#define UNUSED
 #endif
 
 #if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
···
 #endif
 
 #ifndef platform_core_config
-static inline int noop_core_config(const char *UNUSED(var),
-				   const char *UNUSED(value),
-				   void *UNUSED(cb))
+static inline int noop_core_config(const char *var UNUSED,
+				   const char *value UNUSED,
+				   void *cb UNUSED)
 {
 	return 0;
 }
···
 }
 
 static inline int is_path_owned_by_current_uid(const char *path,
-					       struct strbuf *UNUSED(report))
+					       struct strbuf *report UNUSED)
 {
 	struct stat st;
 	uid_t euid;

gpg-interface.c

···
 	configured_signing_key = xstrdup(key);
 }
 
-int git_gpg_config(const char *var, const char *value, void *UNUSED(cb))
+int git_gpg_config(const char *var, const char *value, void *cb UNUSED)
 {
 	struct gpg_format *fmt = NULL;
 	char *fmtname = NULL;

hashmap.c

···
 	return e;
 }
 
-static int always_equal(const void *UNUSED(cmp_data),
-			const struct hashmap_entry *UNUSED(entry1),
-			const struct hashmap_entry *UNUSED(entry2),
-			const void *UNUSED(keydata))
+static int always_equal(const void *cmp_data UNUSED,
+			const struct hashmap_entry *entry1 UNUSED,
+			const struct hashmap_entry *entry2 UNUSED,
+			const void *keydata UNUSED)
 {
 	return 0;
 }
···
 	unsigned char data[FLEX_ARRAY];
 };
 
-static int pool_entry_cmp(const void *UNUSED(cmp_data),
+static int pool_entry_cmp(const void *cmp_data UNUSED,
 			  const struct hashmap_entry *eptr,
 			  const struct hashmap_entry *entry_or_key,
 			  const void *keydata)

help.c

···
 };
 
 static int append_similar_ref(const char *refname,
-			      const struct object_id *UNUSED(oid),
-			      int UNUSED(flags), void *cb_data)
+			      const struct object_id *oid UNUSED,
+			      int flags UNUSED, void *cb_data)
 {
 	struct similar_ref_cb *cb = (struct similar_ref_cb *)(cb_data);
 	char *branch = strrchr(refname, '/') + 1;

http-backend.c

···
 }
 
 static int show_text_ref(const char *name, const struct object_id *oid,
-			 int UNUSED(flag), void *cb_data)
+			 int flag UNUSED, void *cb_data)
 {
 	const char *name_nons = strip_namespace(name);
 	struct strbuf *buf = cb_data;

ident.c

···
 	return 0;
 }
 
-int git_ident_config(const char *var, const char *value, void *UNUSED(data))
+int git_ident_config(const char *var, const char *value, void *data UNUSED)
 {
 	if (!strcmp(var, "user.useconfigonly")) {
 		ident_use_config_only = git_config_bool(var, value);

ll-merge.c

···
 static const char *default_ll_merge;
 
 static int read_merge_config(const char *var, const char *value,
-			     void *UNUSED(cb))
+			     void *cb UNUSED)
 {
 	struct ll_merge_driver *fn;
 	const char *key, *name;

log-tree.c

···
 }
 
 static int add_ref_decoration(const char *refname, const struct object_id *oid,
-			      int UNUSED(flags),
+			      int flags UNUSED,
 			      void *cb_data)
 {
 	struct object *obj;

ls-refs.c

···
 }
 
 static int ls_refs_config(const char *var, const char *value,
-			  void *UNUSED(data))
+			  void *data UNUSED)
 {
 	/*
 	 * We only serve fetches over v2 for now, so respect only "uploadpack"

merge-recursive.c

···
 	char path[FLEX_ARRAY];
 };
 
-static int path_hashmap_cmp(const void *UNUSED(cmp_data),
+static int path_hashmap_cmp(const void *cmp_data UNUSED,
 			    const struct hashmap_entry *eptr,
 			    const struct hashmap_entry *entry_or_key,
 			    const void *keydata)
···
 	return hashmap_get_entry(hashmap, &key, ent, NULL);
 }
 
-static int dir_rename_cmp(const void *UNUSED(cmp_data),
+static int dir_rename_cmp(const void *cmp_data UNUSED,
 			  const struct hashmap_entry *eptr,
 			  const struct hashmap_entry *entry_or_key,
-			  const void *UNUSED(keydata))
+			  const void *keydata UNUSED)
 {
 	const struct dir_rename_entry *e1, *e2;
 
···
 	return hashmap_get_entry(hashmap, &key, ent, NULL);
 }
 
-static int collision_cmp(const void *UNUSED(cmp_data),
+static int collision_cmp(const void *cmp_data UNUSED,
 			 const struct hashmap_entry *eptr,
 			 const struct hashmap_entry *entry_or_key,
-			 const void *UNUSED(keydata))
+			 const void *keydata UNUSED)
 {
 	const struct collision_entry *e1, *e2;
 
···
 	clear_unpack_trees_porcelain(&opt->priv->unpack_opts);
 }
 
-static int save_files_dirs(const struct object_id *UNUSED(oid),
+static int save_files_dirs(const struct object_id *oid UNUSED,
 			   struct strbuf *base, const char *path,
 			   unsigned int mode, void *context)
 {

name-hash.c

···
 	char name[FLEX_ARRAY];
 };
 
-static int dir_entry_cmp(const void *UNUSED(cmp_data),
+static int dir_entry_cmp(const void *cmp_data UNUSED,
 			 const struct hashmap_entry *eptr,
 			 const struct hashmap_entry *entry_or_key,
 			 const void *keydata)
···
 		add_dir_entry(istate, ce);
 }
 
-static int cache_entry_cmp(const void *UNUSED(cmp_data),
+static int cache_entry_cmp(const void *cmp_data UNUSED,
 			   const struct hashmap_entry *eptr,
 			   const struct hashmap_entry *entry_or_key,
 			   const void *remove)

negotiator/default.c

···
 }
 
 static int clear_marks(const char *refname, const struct object_id *oid,
-		       int UNUSED(flag),
-		       void *UNUSED(cb_data))
+		       int flag UNUSED,
+		       void *cb_data UNUSED)
 {
 	struct object *o = deref_tag(the_repository, parse_object(the_repository, oid), refname, 0);
 

negotiator/skipping.c

···
 }
 
 static int clear_marks(const char *refname, const struct object_id *oid,
-		       int UNUSED(flag),
-		       void *UNUSED(cb_data))
+		       int flag UNUSED,
+		       void *cb_data UNUSED)
 {
 	struct object *o = deref_tag(the_repository, parse_object(the_repository, oid), refname, 0);
 

notes.c

···
 }
 
 static int string_list_add_one_ref(const char *refname,
-				   const struct object_id *UNUSED(oid),
-				   int UNUSED(flag), void *cb)
+				   const struct object_id *oid UNUSED,
+				   int flag UNUSED, void *cb)
 {
 	struct string_list *refs = cb;
 	if (!unsorted_string_list_has_string(refs, refname))

object-name.c

···
 };
 
 static int handle_one_ref(const char *path, const struct object_id *oid,
-			  int UNUSED(flag),
+			  int flag UNUSED,
 			  void *cb_data)
 {
 	struct handle_one_ref_cb *cb = cb_data;
···
 	struct strbuf *sb;
 };
 
-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),
+static int grab_nth_branch_switch(struct object_id *ooid UNUSED,
+				  struct object_id *noid UNUSED,
+				  const char *email UNUSED,
+				  timestamp_t timestamp UNUSED,
+				  int tz UNUSED,
 				  const char *message, void *cb_data)
 {
 	struct grab_nth_branch_switch_cbdata *cb = cb_data;

object-store.h

···
 
 struct multi_pack_index;
 
-static inline int pack_map_entry_cmp(const void *UNUSED(cmp_data),
+static inline int pack_map_entry_cmp(const void *cmp_data UNUSED,
 				     const struct hashmap_entry *entry,
 				     const struct hashmap_entry *entry2,
 				     const void *keydata)

oidmap.c

···
 #include "cache.h"
 #include "oidmap.h"
 
-static int oidmap_neq(const void *UNUSED(hashmap_cmp_fn_data),
+static int oidmap_neq(const void *hashmap_cmp_fn_data UNUSED,
 		      const struct hashmap_entry *e1,
 		      const struct hashmap_entry *e2,
 		      const void *keydata)

packfile.c

···
 	return a->p == b->p && a->base_offset == b->base_offset;
 }
 
-static int delta_base_cache_hash_cmp(const void *UNUSED(cmp_data),
+static int delta_base_cache_hash_cmp(const void *cmp_data UNUSED,
 				     const struct hashmap_entry *va,
 				     const struct hashmap_entry *vb,
 				     const void *vkey)

pager.c

···
 }
 
 static int core_pager_config(const char *var, const char *value,
-			     void *UNUSED(data))
+			     void *data UNUSED)
 {
 	if (!strcmp(var, "core.pager"))
 		return git_config_string(&pager_program, var, value);

patch-ids.c

···
 static int patch_id_neq(const void *cmpfn_data,
 			const struct hashmap_entry *eptr,
 			const struct hashmap_entry *entry_or_key,
-			const void *UNUSED(keydata))
+			const void *keydata UNUSED)
 {
 	/* NEEDSWORK: const correctness? */
 	struct diff_options *opt = (void *)cmpfn_data;

pretty.c

···
 }
 
 static int git_pretty_formats_config(const char *var, const char *value,
-				     void *UNUSED(cb))
+				     void *cb UNUSED)
 {
 	struct cmt_fmt_map *commit_format = NULL;
 	const char *name;

range-diff.c

···
 	return ret;
 }
 
-static int patch_util_cmp(const void *UNUSED(cmp_data),
+static int patch_util_cmp(const void *cmp_data UNUSED,
 			  const struct patch_util *a,
 			  const struct patch_util *b,
 			  const char *keydata)

ref-filter.c

···
 	struct worktree *wt; /* key is wt->head_ref */
 };
 
-static int ref_to_worktree_map_cmpfnc(const void *UNUSED(lookupdata),
+static int ref_to_worktree_map_cmpfnc(const void *lookupdata UNUSED,
 				      const struct hashmap_entry *eptr,
 				      const struct hashmap_entry *kptr,
 				      const void *keydata_aka_refname)

reflog.c

···
  * 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 *UNUSED(email),
-			     timestamp_t timestamp, int UNUSED(tz),
-			     const char *UNUSED(message), void *cb_data)
+			     const char *email UNUSED,
+			     timestamp_t timestamp, int tz UNUSED,
+			     const char *message UNUSED, void *cb_data)
 {
 	struct expire_reflog_policy_cb *cb = cb_data;
 	struct commit *old_commit, *new_commit;
···
 	return expire;
 }
 
-static int push_tip_to_list(const char *UNUSED(refname),
+static int push_tip_to_list(const char *refname UNUSED,
 			    const struct object_id *oid,
 			    int flags, 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)
+int count_reflog_ent(struct object_id *ooid UNUSED,
+		     struct object_id *noid UNUSED,
+		     const char *email UNUSED,
+		     timestamp_t timestamp, int tz UNUSED,
+		     const char *message UNUSED, void *cb_data)
 {
 	struct cmd_reflog_expire_cb *cb = cb_data;
 	if (!cb->expire_total || timestamp < cb->expire_total)

refs.c

···
 };
 
 static int warn_if_dangling_symref(const char *refname,
-				   const struct object_id *UNUSED(oid),
+				   const struct object_id *oid UNUSED,
 				   int flags, void *cb_data)
 {
 	struct warn_if_dangling_data *d = cb_data;
···
 }
 
 static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid,
-			   const char *UNUSED(email),
+			   const char *email UNUSED,
 			   timestamp_t timestamp, int tz,
 			   const char *message, void *cb_data)
 {
···
 	return cb->found_it;
 }
 
-static int read_ref_at_ent_newest(struct object_id *UNUSED(ooid),
+static int read_ref_at_ent_newest(struct object_id *ooid UNUSED,
 				  struct object_id *noid,
-				  const char *UNUSED(email),
+				  const char *email UNUSED,
 				  timestamp_t timestamp, int tz,
 				  const char *message, void *cb_data)
 {
···
 }
 
 static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid,
-				  const char *UNUSED(email),
+				  const char *email UNUSED,
 				  timestamp_t timestamp, int tz,
 				  const char *message, void *cb_data)
 {
···
 	char name[FLEX_ARRAY];
 };
 
-static int ref_store_hash_cmp(const void *UNUSED(cmp_data),
+static int ref_store_hash_cmp(const void *cmp_data UNUSED,
 			      const struct hashmap_entry *eptr,
 			      const struct hashmap_entry *entry_or_key,
 			      const void *keydata)

refs/files-backend.c

···
 	return ok;
 }
 
-static int files_reflog_iterator_peel(struct ref_iterator *UNUSED(ref_iterator),
-				      struct object_id *UNUSED(peeled))
+static int files_reflog_iterator_peel(struct ref_iterator *ref_iterator UNUSED,
+				      struct object_id *peeled UNUSED)
 {
 	BUG("ref_iterator_peel() called for reflog_iterator");
 }
···
 static enum iterator_selection reflog_iterator_select(
 	struct ref_iterator *iter_worktree,
 	struct ref_iterator *iter_common,
-	void *UNUSED(cb_data))
+	void *cb_data UNUSED)
 {
 	if (iter_worktree) {
 		/*
···
 
 static int files_transaction_abort(struct ref_store *ref_store,
 				   struct ref_transaction *transaction,
-				   struct strbuf *UNUSED(err))
+				   struct strbuf *err UNUSED)
 {
 	struct files_ref_store *refs =
 		files_downcast(ref_store, 0, "ref_transaction_abort");
···
 }
 
 static int ref_present(const char *refname,
-		       const struct object_id *UNUSED(oid),
-		       int UNUSED(flags),
+		       const struct object_id *oid UNUSED,
+		       int flags UNUSED,
 		       void *cb_data)
 {
 	struct string_list *affected_refnames = cb_data;
···
 	return -1;
 }
 
-static int files_init_db(struct ref_store *ref_store, struct strbuf *UNUSED(err))
+static int files_init_db(struct ref_store *ref_store, struct strbuf *err UNUSED)
 {
 	struct files_ref_store *refs =
 		files_downcast(ref_store, REF_STORE_WRITE, "init_db");

refs/iterator.c

···
 	return ref_iterator_abort(ref_iterator);
 }
 
-static int empty_ref_iterator_peel(struct ref_iterator *UNUSED(ref_iterator),
-				   struct object_id *UNUSED(peeled))
+static int empty_ref_iterator_peel(struct ref_iterator *ref_iterator UNUSED,
+				   struct object_id *peeled UNUSED)
 {
 	BUG("peel called for empty iterator");
 }
···
  */
 static enum iterator_selection overlay_iterator_select(
 		struct ref_iterator *front, struct ref_iterator *back,
-		void *UNUSED(cb_data))
+		void *cb_data UNUSED)
 {
 	int cmp;
 

refs/packed-backend.c

···
 }
 
 static int packed_read_raw_ref(struct ref_store *ref_store, const char *refname,
-			       struct object_id *oid, struct strbuf *UNUSED(referent),
+			       struct object_id *oid, struct strbuf *referent UNUSED,
 			       unsigned int *type, int *failure_errno)
 {
 	struct packed_ref_store *refs =
···
 static const char PACKED_REFS_HEADER[] =
 	"# pack-refs with: peeled fully-peeled sorted \n";
 
-static int packed_init_db(struct ref_store *UNUSED(ref_store),
-			  struct strbuf *UNUSED(err))
+static int packed_init_db(struct ref_store *ref_store UNUSED,
+			  struct strbuf *err UNUSED)
 {
 	/* Nothing to do. */
 	return 0;
···
 
 static int packed_transaction_abort(struct ref_store *ref_store,
 				    struct ref_transaction *transaction,
-				    struct strbuf *UNUSED(err))
+				    struct strbuf *err UNUSED)
 {
 	struct packed_ref_store *refs = packed_downcast(
 			ref_store,
···
 	return ret;
 }
 
-static int packed_initial_transaction_commit(struct ref_store *UNUSED(ref_store),
+static int packed_initial_transaction_commit(struct ref_store *ref_store UNUSED,
 					    struct ref_transaction *transaction,
 					    struct strbuf *err)
 {
···
 	return ret;
 }
 
-static int packed_pack_refs(struct ref_store *UNUSED(ref_store),
-			    unsigned int UNUSED(flags))
+static int packed_pack_refs(struct ref_store *ref_store UNUSED,
+			    unsigned int flags UNUSED)
 {
 	/*
 	 * Packed refs are already packed. It might be that loose refs
···
 	return 0;
 }
 
-static struct ref_iterator *packed_reflog_iterator_begin(struct ref_store *UNUSED(ref_store))
+static struct ref_iterator *packed_reflog_iterator_begin(struct ref_store *ref_store UNUSED)
 {
 	return empty_ref_iterator_begin();
 }

remote.c

···
 	int len;
 };
 
-static int remotes_hash_cmp(const void *UNUSED(cmp_data),
+static int remotes_hash_cmp(const void *cmp_data UNUSED,
 			    const struct hashmap_entry *eptr,
 			    const struct hashmap_entry *entry_or_key,
 			    const void *keydata)
···
 	int len;
 };
 
-static int branches_hash_cmp(const void *UNUSED(cmp_data),
+static int branches_hash_cmp(const void *cmp_data UNUSED,
 			     const struct hashmap_entry *eptr,
 			     const struct hashmap_entry *entry_or_key,
 			     const void *keydata)
···
 }
 
 static int one_local_ref(const char *refname, const struct object_id *oid,
-			 int UNUSED(flag),
+			 int flag UNUSED,
 			 void *cb_data)
 {
 	struct ref ***local_tail = cb_data;
···
 };
 
 /* Get the timestamp of the latest entry. */
-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)
+static int peek_reflog(struct object_id *o_oid UNUSED,
+		       struct object_id *n_oid UNUSED,
+		       const char *ident UNUSED,
+		       timestamp_t timestamp, int tz UNUSED,
+		       const char *message UNUSED, void *cb_data)
 {
 	timestamp_t *ts = cb_data;
 	*ts = timestamp;
 	return 1;
 }
 
-static int check_and_collect_until(struct object_id *UNUSED(o_oid),
+static int check_and_collect_until(struct object_id *o_oid UNUSED,
 				   struct object_id *n_oid,
-				   const char *UNUSED(ident),
-				   timestamp_t timestamp, int UNUSED(tz),
-				   const char *UNUSED(message), void *cb_data)
+				   const char *ident UNUSED,
+				   timestamp_t timestamp, int tz UNUSED,
+				   const char *message UNUSED, void *cb_data)
 {
 	struct commit *commit;
 	struct check_and_collect_until_cb_data *cb = cb_data;

replace-object.c

···
 static int register_replace_ref(struct repository *r,
 				const char *refname,
 				const struct object_id *oid,
-				int UNUSED(flag),
-				void *UNUSED(cb_data))
+				int flag UNUSED,
+				void *cb_data UNUSED)
 {
 	/* Get sha1 from refname */
 	const char *slash = strrchr(refname, '/');

revision.c

···
 	struct oidset trees;
 };
 
-static int path_and_oids_cmp(const void *UNUSED(hashmap_cmp_fn_data),
+static int path_and_oids_cmp(const void *hashmap_cmp_fn_data UNUSED,
 			     const struct hashmap_entry *eptr,
 			     const struct hashmap_entry *entry_or_key,
-			     const void *UNUSED(keydata))
+			     const void *keydata UNUSED)
 {
 	const struct path_and_oids_entry *e1, *e2;
 
···
 }
 
 static int handle_one_ref(const char *path, const struct object_id *oid,
-			  int UNUSED(flag),
+			  int flag UNUSED,
 			  void *cb_data)
 {
 	struct all_refs_cb *cb = cb_data;
···
 }
 
 static int handle_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
-				 const char *UNUSED(email),
-				 timestamp_t UNUSED(timestamp),
-				 int UNUSED(tz),
-				 const char *UNUSED(message),
+				 const char *email UNUSED,
+				 timestamp_t timestamp UNUSED,
+				 int tz UNUSED,
+				 const char *message UNUSED,
 				 void *cb_data)
 {
 	handle_one_reflog_commit(ooid, cb_data);
···
 }
 
 static int handle_one_reflog(const char *refname_in_wt,
-			     const struct object_id *UNUSED(oid),
-			     int UNUSED(flag), void *cb_data)
+			     const struct object_id *oid UNUSED,
+			     int flag UNUSED, void *cb_data)
 {
 	struct all_refs_cb *cb = cb_data;
 	struct strbuf refname = STRBUF_INIT;

send-pack.c

···
 	return ret;
 }
 
-static int sideband_demux(int UNUSED(in), int out, void *data)
+static int sideband_demux(int in UNUSED, int out, void *data)
 {
 	int *fd = data, ret;
 	if (async_with_fork())

sequencer.c

···
 	char label[FLEX_ARRAY];
 };
 
-static int labels_cmp(const void *UNUSED(fndata),
+static int labels_cmp(const void *fndata UNUSED,
 		      const struct hashmap_entry *eptr,
 		      const struct hashmap_entry *entry_or_key, const void *key)
 {
···
 	char subject[FLEX_ARRAY];
 };
 
-static int subject2item_cmp(const void *UNUSED(fndata),
+static int subject2item_cmp(const void *fndata UNUSED,
 			    const struct hashmap_entry *eptr,
 			    const struct hashmap_entry *entry_or_key,
 			    const void *key)

server-info.c

···
 }
 
 static int add_info_ref(const char *path, const struct object_id *oid,
-			int UNUSED(flag),
+			int flag UNUSED,
 			void *cb_data)
 {
 	struct update_info_ctx *uic = cb_data;

shallow.c

···
 	free(tmp);
 }
 
-static int mark_uninteresting(const char *UNUSED(refname),
+static int mark_uninteresting(const char *refname UNUSED,
 			      const struct object_id *oid,
-			      int UNUSED(flags),
-			      void *UNUSED(cb_data))
+			      int flags UNUSED,
+			      void *cb_data UNUSED)
 {
 	struct commit *commit = lookup_commit_reference_gently(the_repository,
 							       oid, 1);
···
 	int nr, alloc;
 };
 
-static int add_ref(const char *UNUSED(refname),
+static int add_ref(const char *refname UNUSED,
 		   const struct object_id *oid,
-		   int UNUSED(flags),
+		   int flags UNUSED,
 		   void *cb_data)
 {
 	struct commit_array *ca = cb_data;

strbuf.c

···
 
 size_t strbuf_expand_literal_cb(struct strbuf *sb,
 				const char *placeholder,
-				void *context)
+				void *context UNUSED)
 {
 	int ch;
 

streaming.c

···
 }
 
 static int open_istream_pack_non_delta(struct git_istream *st,
-				       struct repository *UNUSED(r),
-				       const struct object_id *UNUSED(oid),
-				       enum object_type *UNUSED(type))
+				       struct repository *r UNUSED,
+				       const struct object_id *oid UNUSED,
+				       enum object_type *type UNUSED)
 {
 	struct pack_window *window;
 	enum object_type in_pack_type;

strmap.c

···
 #include "strmap.h"
 #include "mem-pool.h"
 
-int cmp_strmap_entry(const void *UNUSED(hashmap_cmp_fn_data),
+int cmp_strmap_entry(const void *hashmap_cmp_fn_data UNUSED,
 		     const struct hashmap_entry *entry1,
 		     const struct hashmap_entry *entry2,
-		     const void *UNUSED(keydata))
+		     const void *keydata UNUSED)
 {
 	const struct strmap_entry *e1, *e2;
 

sub-process.c

···
 #include "sigchain.h"
 #include "pkt-line.h"
 
-int cmd2process_cmp(const void *UNUSED(cmp_data),
+int cmd2process_cmp(const void *cmp_data UNUSED,
 		    const struct hashmap_entry *eptr,
 		    const struct hashmap_entry *entry_or_key,
-		    const void *UNUSED(keydata))
+		    const void *keydata UNUSED)
 {
 	const struct subprocess_entry *e1, *e2;
 

submodule-config.c

···
 	lookup_path
 };
 
-static int config_path_cmp(const void *UNUSED(cmp_data),
+static int config_path_cmp(const void *cmp_data UNUSED,
 			   const struct hashmap_entry *eptr,
 			   const struct hashmap_entry *entry_or_key,
-			   const void *UNUSED(keydata))
+			   const void *keydata UNUSED)
 {
 	const struct submodule_entry *a, *b;
 
···
 	       !oideq(&a->config->gitmodules_oid, &b->config->gitmodules_oid);
 }
 
-static int config_name_cmp(const void *UNUSED(cmp_data),
+static int config_name_cmp(const void *cmp_data UNUSED,
 			   const struct hashmap_entry *eptr,
 			   const struct hashmap_entry *entry_or_key,
-			   const void *UNUSED(keydata))
+			   const void *keydata UNUSED)
 {
 	const struct submodule_entry *a, *b;
 

submodule.c

···
 
 /* Cheap function that only determines if we're interested in submodules at all */
 int git_default_submodule_config(const char *var, const char *value,
-				 void *UNUSED(cb))
+				 void *cb UNUSED)
 {
 	if (!strcmp(var, "submodule.recurse")) {
 		int v = git_config_bool(var, value) ?
···
 	string_list_clear(submodules, 1);
 }
 
-static int has_remote(const char *UNUSED(refname),
-		      const struct object_id *UNUSED(oid),
-		      int UNUSED(flags), void *UNUSED(cb_data))
+static int has_remote(const char *refname UNUSED,
+		      const struct object_id *oid UNUSED,
+		      int flags UNUSED, void *cb_data UNUSED)
 {
 	return 1;
 }
···
 	return ret;
 }
 
-static int append_oid_to_array(const char *UNUSED(ref),
+static int append_oid_to_array(const char *ref UNUSED,
 			       const struct object_id *oid,
-			       int UNUSED(flags), void *data)
+			       int flags UNUSED, void *data)
 {
 	struct oid_array *array = data;
 	oid_array_append(array, oid);

t/helper/test-config.c

···
  *
  */
 
-static int iterate_cb(const char *var, const char *value, void *UNUSED(data))
+static int iterate_cb(const char *var, const char *value, void *data UNUSED)
 {
 	static int nr;
 

t/helper/test-ref-store.c

···
 }
 
 static int each_ref(const char *refname, const struct object_id *oid,
-		    int flags, void *UNUSED(cb_data))
+		    int flags, void *cb_data UNUSED)
 {
 	printf("%s %s 0x%x\n", oid_to_hex(oid), refname, flags);
 	return 0;
···
 
 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 *UNUSED(cb_data))
+		       int tz, const char *msg, void *cb_data UNUSED)
 {
 	printf("%s %s %s %" PRItime " %+05d%s%s", oid_to_hex(old_oid),
 	       oid_to_hex(new_oid), committer, timestamp, tz,

t/helper/test-userdiff.c

···
 	return 0;
 }
 
-static int cmd__userdiff_config(const char *var, const char *value, void *UNUSED(cb))
+static int cmd__userdiff_config(const char *var, const char *value, void *cb UNUSED)
 {
 	if (userdiff_config(var, value) < 0)
 		return -1;

trailer.c

···
 };
 
 static int git_trailer_default_config(const char *conf_key, const char *value,
-				      void *UNUSED(cb))
+				      void *cb UNUSED)
 {
 	const char *trailer_item, *variable_name;
 
···
 }
 
 static int git_trailer_config(const char *conf_key, const char *value,
-			      void *UNUSED(cb))
+			      void *cb UNUSED)
 {
 	const char *trailer_item, *variable_name;
 	struct arg_item *item;

transport.c

···
 
 static struct ref *get_refs_from_bundle(struct transport *transport,
 					int for_push,
-					struct transport_ls_refs_options *UNUSED(transport_options))
+					struct transport_ls_refs_options *transport_options UNUSED)
 {
 	struct bundle_transport_data *data = transport->data;
 	struct ref *result = NULL;

upload-pack.c

···
 }
 
 static int check_ref(const char *refname_full, const struct object_id *oid,
-		     int UNUSED(flag), void *UNUSED(cb_data))
+		     int flag UNUSED, void *cb_data UNUSED)
 {
 	const char *refname = strip_namespace(refname_full);
 
···
 }
 
 static int send_ref(const char *refname, const struct object_id *oid,
-		    int UNUSED(flag), void *cb_data)
+		    int flag UNUSED, void *cb_data)
 {
 	static const char *capabilities = "multi_ack thin-pack side-band"
 		" side-band-64k ofs-delta shallow deepen-since deepen-not"
···
 }
 
 static int find_symref(const char *refname,
-		       const struct object_id *UNUSED(oid),
+		       const struct object_id *oid UNUSED,
 		       int flag, void *cb_data)
 {
 	const char *symref_target;

walker.c

···
 	return -1;
 }
 
-static int mark_complete(const char *UNUSED(path),
+static int mark_complete(const char *path UNUSED,
 			 const struct object_id *oid,
-			 int UNUSED(flag),
-			 void *UNUSED(cb_data))
+			 int flag UNUSED,
+			 void *cb_data UNUSED)
 {
 	struct commit *commit = lookup_commit_reference_gently(the_repository,
 							       oid, 1);

wt-status.c

···
 	wt_longstatus_print_trailer(s);
 }
 
-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)
+static int stash_count_refs(struct object_id *ooid UNUSED,
+			    struct object_id *noid UNUSED,
+			    const char *email UNUSED,
+			    timestamp_t timestamp UNUSED, int tz UNUSED,
+			    const char *message UNUSED, void *cb_data)
 {
 	int *c = cb_data;
 	(*c)++;
···
 	struct object_id noid;
 };
 
-static int grab_1st_switch(struct object_id *UNUSED(ooid),
+static int grab_1st_switch(struct object_id *ooid UNUSED,
 			   struct object_id *noid,
-			   const char *UNUSED(email),
-			   timestamp_t UNUSED(timestamp), int UNUSED(tz),
+			   const char *email UNUSED,
+			   timestamp_t timestamp UNUSED, int tz UNUSED,
 			   const char *message, void *cb_data)
 {
 	struct grab_1st_switch_cbdata *cb = cb_data;