diff --git a/nixos/modules/services/hardware/udev.nix b/nixos/modules/services/hardware/udev.nix
index 513eb27b4069..c747c24db67d 100644
--- a/nixos/modules/services/hardware/udev.nix
+++ b/nixos/modules/services/hardware/udev.nix
@@ -180,9 +180,7 @@ in
         firmware to function).  If multiple packages contain firmware
         files with the same name, the first package in the list takes
         precedence.  Note that you must rebuild your system if you add
-        files to any of these directories.  For quick testing,
-        put firmware files in <filename>/root/test-firmware</filename>
-        and add that directory to the list.
+        files to any of these directories.
       '';
       apply = list: pkgs.buildEnv {
         name = "firmware";
diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 386004dad43a..7b8a18613650 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -477,8 +477,7 @@ with stdenv.lib;
 
   ${optionalString (versionAtLeast version "3.17") "NFC? n"}
 
-  # Enable firmware loading via udev. Only needed for non-declarative
-  # firmware in /root/test-firmware.
+  # Enable firmware loading via udev (legacy).
   ${optionalString (versionAtLeast version "3.17") ''
     FW_LOADER_USER_HELPER_FALLBACK y
   ''}