From 752453a1ff193c4be5e53cde2879b2aae91abe97 Mon Sep 17 00:00:00 2001
From: DaniPopes <57450786+DaniPopes@users.noreply.github.com>
Date: Sat, 22 Apr 2023 15:23:55 +0200
Subject: [PATCH] Add comment about `__thread_local_inner` in `thread_local`

---
 library/std/src/thread/local.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/std/src/thread/local.rs b/library/std/src/thread/local.rs
index 7fdf03acc14d9..7dc6f5fb052d7 100644
--- a/library/std/src/thread/local.rs
+++ b/library/std/src/thread/local.rs
@@ -152,6 +152,7 @@ macro_rules! thread_local {
     // empty (base case for the recursion)
     () => {};
 
+    // the `__thread_local_inner` macro is declared in `sys::common::thread_local`
     ($(#[$attr:meta])* $vis:vis static $name:ident: $t:ty = const { $init:expr }; $($rest:tt)*) => (
         $crate::__thread_local_inner!($(#[$attr])* $vis $name, $t, const $init);
         $crate::thread_local!($($rest)*);