hashmap: mark unused callback parameters

Hashmap comparison functions must conform to a particular callback
interface, but many don't use all of their parameters. Especially the
void cmp_data pointer, but some do not use keydata either (because they
can easily form a full struct to pass when doing lookups). Let's mark
these to make -Wunused-parameter happy.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/config.c b/config.c
index 589dec9028..c92f1efd6b 100644
--- a/config.c
+++ b/config.c
@@ -2338,10 +2338,10 @@ static int configset_add_value(struct config_set *cs, const char *key, const cha
 	return 0;
 }
 
-static int config_set_element_cmp(const void *unused_cmp_data,
+static int config_set_element_cmp(const void *UNUSED(cmp_data),
 				  const struct hashmap_entry *eptr,
 				  const struct hashmap_entry *entry_or_key,
-				  const void *unused_keydata)
+				  const void *UNUSED(keydata))
 {
 	const struct config_set_element *e1, *e2;