Add initialization helper for file_handle_union

src/shared/path-util.c

@@ -454,10 +454,7 @@ char* path_join(const char *root, const char *path, const char *rest) {
 
 int path_is_mount_point(const char *t, bool allow_symlink) {
 
-        union file_handle_union h = {
-                .handle.handle_bytes = MAX_HANDLE_SZ
-        };
-
+        union file_handle_union h = FILE_HANDLE_INIT;
         int mount_id = -1, mount_id_parent = -1;
         _cleanup_free_ char *parent = NULL;
         struct stat a, b;

src/shared/util.h

@@ -993,6 +993,7 @@ union file_handle_union {
         struct file_handle handle;
         char padding[sizeof(struct file_handle) + MAX_HANDLE_SZ];
 };
+#define FILE_HANDLE_INIT { .handle.handle_bytes = MAX_HANDLE_SZ }
 
 int update_reboot_param_file(const char *param);