patch: drop some warnings

src/diff_print.c

@@ -467,8 +467,7 @@ static int format_binary(
 
 static int diff_print_patch_file_binary_noshow(
 	diff_print_info *pi, git_diff_delta *delta,
-	const char *old_pfx, const char *new_pfx,
-	const git_diff_binary *binary)
+	const char *old_pfx, const char *new_pfx)
 {
 	git_buf old_path = GIT_BUF_INIT, new_path = GIT_BUF_INIT;
 	int error;
@@ -502,7 +501,7 @@ static int diff_print_patch_file_binary(
 
 	if ((pi->flags & GIT_DIFF_SHOW_BINARY) == 0)
 		return diff_print_patch_file_binary_noshow(
-			pi, delta, old_pfx, new_pfx, binary);
+			pi, delta, old_pfx, new_pfx);
 
 	if (binary->new_file.datalen == 0 && binary->old_file.datalen == 0)
 		return 0;
@@ -521,7 +520,7 @@ static int diff_print_patch_file_binary(
 			git_buf_truncate(pi->buf, pre_binary_size);
 
 			return diff_print_patch_file_binary_noshow(
-				pi, delta, old_pfx, new_pfx, binary);
+				pi, delta, old_pfx, new_pfx);
 		}
 	}
 

src/patch_parse.c

@@ -184,7 +184,7 @@ static int parse_header_mode(uint16_t *mode, patch_parse_ctx *ctx)
 
 static int parse_header_oid(
 	git_oid *oid,
-	size_t *oid_len,
+	int *oid_len,
 	patch_parse_ctx *ctx)
 {
 	size_t len;
@@ -201,7 +201,7 @@ static int parse_header_oid(
 
 	parse_advance_chars(ctx, len);
 
-	*oid_len = len;
+	*oid_len = (int)len;
 
 	return 0;
 }