object-file: mark unused parameters in hash_unknown functions

The 0'th entry of our hash_algos array fills out the virtual methods
with a series of functions which simply BUG(). This is the right thing
to do, since the point is to catch use of an invalid algo parameter, but
we need to annotate them to appease -Wunused-parameters.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

object-file.c

@@ -140,27 +140,32 @@ static void git_hash_sha256_final_oid(struct object_id *oid, git_hash_ctx *ctx)
 	oid->algo = GIT_HASH_SHA256;
 }
 
-static void git_hash_unknown_init(git_hash_ctx *ctx)
+static void git_hash_unknown_init(git_hash_ctx *ctx UNUSED)
 {
 	BUG("trying to init unknown hash");
 }
 
-static void git_hash_unknown_clone(git_hash_ctx *dst, const git_hash_ctx *src)
+static void git_hash_unknown_clone(git_hash_ctx *dst UNUSED,
+				   const git_hash_ctx *src UNUSED)
 {
 	BUG("trying to clone unknown hash");
 }
 
-static void git_hash_unknown_update(git_hash_ctx *ctx, const void *data, size_t len)
+static void git_hash_unknown_update(git_hash_ctx *ctx UNUSED,
+				    const void *data UNUSED,
+				    size_t len UNUSED)
 {
 	BUG("trying to update unknown hash");
 }
 
-static void git_hash_unknown_final(unsigned char *hash, git_hash_ctx *ctx)
+static void git_hash_unknown_final(unsigned char *hash UNUSED,
+				   git_hash_ctx *ctx UNUSED)
 {
 	BUG("trying to finalize unknown hash");
 }
 
-static void git_hash_unknown_final_oid(struct object_id *oid, git_hash_ctx *ctx)
+static void git_hash_unknown_final_oid(struct object_id *oid UNUSED,
+				       git_hash_ctx *ctx UNUSED)
 {
 	BUG("trying to finalize unknown hash");
 }