nixos/boot: properly override the kernel in boot.kernelPatches

Previously the code took the kernelPatches of the final derivation, which
might or might not be what was passed to the derivation in the original call.
The previous behaviour caused various hacks to become neccessary to avoid duplicates in kernelPatches.

1 files changed, 3 insertions, 3 deletions

diff --git a/nixos/modules/system/boot/kernel.nix b/nixos/modules/system/boot/kernel.nix
index 363d8e47a0f..1a6a9d99d5b 100644
--- a/nixos/modules/system/boot/kernel.nix
+++ b/nixos/modules/system/boot/kernel.nix
@@ -38,11 +38,11 @@ in
       default = pkgs.linuxPackages;
       type = types.unspecified // { merge = mergeEqualOption; };
       apply = kernelPackages: kernelPackages.extend (self: super: {
-        kernel = super.kernel.override {
+        kernel = super.kernel.override (originalArgs: {
           inherit randstructSeed;
-          kernelPatches = super.kernel.kernelPatches ++ kernelPatches;
+          kernelPatches = (originalArgs.kernelPatches or []) ++ kernelPatches;
           features = lib.recursiveUpdate super.kernel.features features;
-        };
+        });
       });
       # We don't want to evaluate all of linuxPackages for the manual
       # - some of it might not even evaluate correctly.