linux: add 4.9

pkgs/os-specific/linux/kernel/linux-4.9.nix

@@ -0,0 +1,20 @@
+{ stdenv, fetchurl, perl, buildLinux, ... } @ args:
+
+import ./generic.nix (args // rec {
+  version = "4.9";
+  modDirVersion = "4.9.0";
+  extraMeta.branch = "4.9";
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
+    sha256 = "029098dcffab74875e086ae970e3828456838da6e0ba22ce3f64ef764f3d7f1a";
+  };
+
+  kernelPatches = args.kernelPatches;
+
+  features.iwlwifi = true;
+  features.efiBootStub = true;
+  features.needsCifsUtils = true;
+  features.canDisableNetfilterConntrackHelpers = true;
+  features.netfilterRPFilter = true;
+} // (args.argsOverride or {}))

pkgs/top-level/all-packages.nix

@@ -11020,6 +11020,22 @@ in
       ];
   };
 
+  linux_4_9 = callPackage ../os-specific/linux/kernel/linux-4.9.nix {
+    kernelPatches =
+      [ kernelPatches.bridge_stp_helper
+        # See pkgs/os-specific/linux/kernel/cpu-cgroup-v2-patches/README.md
+        # when adding a new linux version
+        # !!! 4.7 patch doesn't apply, 4.9 patch not up yet, will keep checking
+        # kernelPatches.cpu-cgroup-v2."4.7"
+        kernelPatches.modinst_arg_list_too_long
+      ]
+      ++ lib.optionals ((platform.kernelArch or null) == "mips")
+      [ kernelPatches.mips_fpureg_emu
+        kernelPatches.mips_fpu_sigill
+        kernelPatches.mips_ext3_n32
+      ];
+  };
+
   linux_testing = callPackage ../os-specific/linux/kernel/linux-testing.nix {
     kernelPatches = [
       kernelPatches.bridge_stp_helper
@@ -11181,7 +11197,7 @@ in
   linux = linuxPackages.kernel;
 
   # Update this when adding the newest kernel major version!
-  linuxPackages_latest = linuxPackages_4_8;
+  linuxPackages_latest = linuxPackages_4_9;
   linux_latest = linuxPackages_latest.kernel;
 
   # Build the kernel modules for the some of the kernels.
@@ -11193,6 +11209,7 @@ in
   linuxPackages_4_1 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_1);
   linuxPackages_4_4 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_4);
   linuxPackages_4_8 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_8);
+  linuxPackages_4_9 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_9);
   # Don't forget to update linuxPackages_latest!
 
   # Intentionally lacks recurseIntoAttrs, as -rc kernels will quite likely break out-of-tree modules and cause failed Hydra builds.