Merge branch 'jk/unused-post-2.39-part2'

More work towards -Wunused.

* jk/unused-post-2.39-part2: (21 commits)
  help: mark unused parameter in git_unknown_cmd_config()
  run_processes_parallel: mark unused callback parameters
  userformat_want_item(): mark unused parameter
  for_each_commit_graft(): mark unused callback parameter
  rewrite_parents(): mark unused callback parameter
  fetch-pack: mark unused parameter in callback function
  notes: mark unused callback parameters
  prio-queue: mark unused parameters in comparison functions
  for_each_object: mark unused callback parameters
  list-objects: mark unused callback parameters
  mark unused parameters in signal handlers
  run-command: mark error routine parameters as unused
  mark "pointless" data pointers in callbacks
  ref-filter: mark unused callback parameters
  http-backend: mark unused parameters in virtual functions
  http-backend: mark argc/argv unused
  object-name: mark unused parameters in disambiguate callbacks
  serve: mark unused parameters in virtual functions
  serve: use repository pointer to get config
  ls-refs: drop config caching
  ...

1 files changed, 2 insertions, 1 deletions

diff --git a/help.c b/help.c
index 216777d2bf..5d7637dce9 100644
--- a/help.c
+++ b/help.c
@@ -542,7 +542,8 @@ static struct cmdnames aliases;
 #define AUTOCORRECT_NEVER (-2)
 #define AUTOCORRECT_IMMEDIATELY (-1)
 
-static int git_unknown_cmd_config(const char *var, const char *value, void *cb)
+static int git_unknown_cmd_config(const char *var, const char *value,
+				  void *cb UNUSED)
 {
 	const char *p;