Merge branch 'sb/hashmap-cleanup'

Many uses of comparision callback function the hashmap API uses
cast the callback function type when registering it to
hashmap_init(), which defeats the compile time type checking when
the callback interface changes (e.g. gaining more parameters).
The callback implementations have been updated to take "void *"
pointers and cast them to the type they expect instead.

* sb/hashmap-cleanup:
  t/helper/test-hashmap: use custom data instead of duplicate cmp functions
  name-hash.c: drop hashmap_cmp_fn cast
  submodule-config.c: drop hashmap_cmp_fn cast
  remote.c: drop hashmap_cmp_fn cast
  patch-ids.c: drop hashmap_cmp_fn cast
  convert/sub-process: drop cast to hashmap_cmp_fn
  config.c: drop hashmap_cmp_fn cast
  builtin/describe: drop hashmap_cmp_fn cast
  builtin/difftool.c: drop hashmap_cmp_fn cast
  attr.c: drop hashmap_cmp_fn cast

1 files changed, 12 insertions, 6 deletions

diff --git a/submodule-config.c b/submodule-config.c
index d48403f25e..bede338c85 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -35,19 +35,25 @@ enum lookup_type {
 };
 
 static int config_path_cmp(const void *unused_cmp_data,
-			   const struct submodule_entry *a,
-			   const struct submodule_entry *b,
+			   const void *entry,
+			   const void *entry_or_key,
 			   const void *unused_keydata)
 {
+	const struct submodule_entry *a = entry;
+	const struct submodule_entry *b = entry_or_key;
+
 	return strcmp(a->config->path, b->config->path) ||
 	       hashcmp(a->config->gitmodules_sha1, b->config->gitmodules_sha1);
 }
 
 static int config_name_cmp(const void *unused_cmp_data,
-			   const struct submodule_entry *a,
-			   const struct submodule_entry *b,
+			   const void *entry,
+			   const void *entry_or_key,
 			   const void *unused_keydata)
 {
+	const struct submodule_entry *a = entry;
+	const struct submodule_entry *b = entry_or_key;
+
 	return strcmp(a->config->name, b->config->name) ||
 	       hashcmp(a->config->gitmodules_sha1, b->config->gitmodules_sha1);
 }
@@ -59,8 +65,8 @@ static struct submodule_cache *submodule_cache_alloc(void)
 
 static void submodule_cache_init(struct submodule_cache *cache)
 {
-	hashmap_init(&cache->for_path, (hashmap_cmp_fn) config_path_cmp, NULL, 0);
-	hashmap_init(&cache->for_name, (hashmap_cmp_fn) config_name_cmp, NULL, 0);
+	hashmap_init(&cache->for_path, config_path_cmp, NULL, 0);
+	hashmap_init(&cache->for_name, config_name_cmp, NULL, 0);
 	cache->initialized = 1;
 }