From bf5b75864dbce1e072ac1c1816f6bda97c096e46 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 12 Jul 2022 14:33:10 +0200
Subject: [PATCH] lib/modules: Add _module.specialArgs

---
 lib/modules.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/modules.nix b/lib/modules.nix
index 1e48f5440798..7f1646e9b8bc 100644
--- a/lib/modules.nix
+++ b/lib/modules.nix
@@ -266,6 +266,15 @@ rec {
               turned off.
             '';
           };
+
+          _module.specialArgs = mkOption {
+            readOnly = true;
+            internal = true;
+            description = ''
+              Externally provided module arguments that can't be modified from
+              within a configuration, but can be used in module imports.
+            '';
+          };
         };
 
         config = {
@@ -273,6 +282,7 @@ rec {
             inherit extendModules;
             moduleType = type;
           };
+          _module.specialArgs = specialArgs;
         };
       };