treewide: use `pkgs.config` instead of `config.nixpkgs.config`

`pkgs` may be passed in externally, in which case `config.nixpkgs.config` will not be set.

Follow-up to #257458.

3 files changed, 3 insertions, 3 deletions

diff --git a/nixos/modules/hardware/all-firmware.nix b/nixos/modules/hardware/all-firmware.nix
index 9e7a01c58afe..08141bb0e87b 100644
--- a/nixos/modules/hardware/all-firmware.nix
+++ b/nixos/modules/hardware/all-firmware.nix
@@ -69,7 +69,7 @@ in {
     })
     (mkIf cfg.enableAllFirmware {
       assertions = [{
-        assertion = !cfg.enableAllFirmware || config.nixpkgs.config.allowUnfree;
+        assertion = !cfg.enableAllFirmware || pkgs.config.allowUnfree;
         message = ''
           the list of hardware.enableAllFirmware contains non-redistributable licensed firmware files.
             This requires nixpkgs.config.allowUnfree to be true.
diff --git a/nixos/modules/programs/firefox.nix b/nixos/modules/programs/firefox.nix
index 43cf64cf1d82..83a3edaf813e 100644
--- a/nixos/modules/programs/firefox.nix
+++ b/nixos/modules/programs/firefox.nix
@@ -237,7 +237,7 @@ in
           # copy-pasted from the wrapper; TODO: figure out fix
           applicationName = cfg.package.binaryName or (lib.getName cfg.package);
 
-          nixpkgsConfig = config.nixpkgs.config.${applicationName} or {};
+          nixpkgsConfig = pkgs.config.${applicationName} or {};
           optionConfig = cfg.wrapperConfig;
           nmhConfig = {
             enableBrowserpass = nmh.browserpass;
diff --git a/nixos/modules/virtualisation/virtualbox-host.nix b/nixos/modules/virtualisation/virtualbox-host.nix
index b1565a09682a..9741ea090f79 100644
--- a/nixos/modules/virtualisation/virtualbox-host.nix
+++ b/nixos/modules/virtualisation/virtualbox-host.nix
@@ -91,7 +91,7 @@ in
   };
 
   config = mkIf cfg.enable (mkMerge [{
-    warnings = mkIf (config.nixpkgs.config.virtualbox.enableExtensionPack or false)
+    warnings = mkIf (pkgs.config.virtualbox.enableExtensionPack or false)
       ["'nixpkgs.virtualbox.enableExtensionPack' has no effect, please use 'virtualisation.virtualbox.host.enableExtensionPack'"];
     boot.kernelModules = [ "vboxdrv" "vboxnetadp" "vboxnetflt" ];
     boot.extraModulePackages = [ kernelModules ];