From ac946e166adc17842c1d6c5850fcbffd9d8095b9 Mon Sep 17 00:00:00 2001
From: Wolfgang Walther <walther@technowledgy.de>
Date: Mon, 21 Jul 2025 20:11:42 +0200
Subject: [PATCH] linux: remove assert on linux

Asserting the hostplatform for `linux` is bad, because it can't be
caught by CI. For the `linux` package itself, it doesn't make a
difference, because it also has `meta.platforms = linux` set, so this
will fail evaluation - and in a way that can nicely be caught by CI.

(cherry picked from commit 0febbb4ff90f2bf7637567214b0bbf1de43ba461)
---
 pkgs/os-specific/linux/kernel/generic.nix |  2 --
 pkgs/os-specific/linux/ply/default.nix    |  1 +
 pkgs/test/nixos-functions/default.nix     | 22 +++++++++++-----------
 3 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index 6c8ae502731ee..9248bea731269 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -91,8 +91,6 @@ let
     # cgit) that are needed here should be included directly in Nixpkgs as
     # files.
 
-    assert stdenv.hostPlatform.isLinux;
-
     let
       # Dirty hack to make sure that `version` & `src` have
       # `<nixpkgs/pkgs/os-specific/linux/kernel/linux-x.y.nix>` as position
diff --git a/pkgs/os-specific/linux/ply/default.nix b/pkgs/os-specific/linux/ply/default.nix
index 3e1dfa2967061..53d3553afc0a3 100644
--- a/pkgs/os-specific/linux/ply/default.nix
+++ b/pkgs/os-specific/linux/ply/default.nix
@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
       mic92
       mbbx6spp
     ];
+    platforms = lib.platforms.linux;
   };
 }
diff --git a/pkgs/test/nixos-functions/default.nix b/pkgs/test/nixos-functions/default.nix
index dc8e0b3ead315..4cc738cfaebe7 100644
--- a/pkgs/test/nixos-functions/default.nix
+++ b/pkgs/test/nixos-functions/default.nix
@@ -21,14 +21,14 @@ let
     label = "test";
   };
 in
-pkgs.recurseIntoAttrs {
-
-  nixos-test =
-    (pkgs.nixos {
-      system.nixos = dummyVersioning;
-      boot.loader.grub.enable = false;
-      fileSystems."/".device = "/dev/null";
-      system.stateVersion = lib.trivial.release;
-    }).toplevel;
-
-}
+lib.optionalAttrs (stdenv.hostPlatform.isLinux) (
+  pkgs.recurseIntoAttrs {
+    nixos-test =
+      (pkgs.nixos {
+        system.nixos = dummyVersioning;
+        boot.loader.grub.enable = false;
+        fileSystems."/".device = "/dev/null";
+        system.stateVersion = lib.trivial.release;
+      }).toplevel;
+  }
+)