linux: add extra passthru (#412568)

pkgs/os-specific/linux/kernel/generic.nix

@@ -69,6 +69,7 @@ let
           "pc"
         ],
       extraMeta ? { },
+      extraPassthru ? { },
 
       isZen ? false,
       isLibre ? false,
@@ -299,6 +300,7 @@ let
 
         passthru =
           previousAttrs.passthru or { }
+          // extraPassthru
           // basicArgs
           // {
             features = kernelFeatures;

pkgs/os-specific/linux/kernel/linux-libre.nix

@@ -43,7 +43,7 @@ linux.override {
       '';
     };
 
-    passthru.updateScript = ./update-libre.sh;
+    extraPassthru.updateScript = ./update-libre.sh;
 
     maintainers = with lib.maintainers; [ qyliss ];
   };

pkgs/os-specific/linux/kernel/zen-kernels.nix

@@ -145,7 +145,7 @@ let
             UCLAMP_TASK_GROUP = mkKernelOverride (option no);
           };
 
-        passthru.updateScript = [
+        extraPassthru.updateScript = [
           ./update-zen.py
           (if isLqx then "lqx" else "zen")
         ];