Revert "linux_4_13: Remove, no longer supported."

This reverts commit b39ab30ba7aebb9b148d6edab20c5927982e5ba5.

There are some show stopper issues in the 4.14 kernel that are still
not resolved.

https://github.com/NixOS/nixpkgs/issues/31640

2 files changed, 28 insertions, 0 deletions

diff --git a/pkgs/os-specific/linux/kernel/linux-4.13.nix b/pkgs/os-specific/linux/kernel/linux-4.13.nix
new file mode 100644
index 00000000000..72ae02bbecd
--- /dev/null
+++ b/pkgs/os-specific/linux/kernel/linux-4.13.nix
@@ -0,0 +1,11 @@
+{ stdenv, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
+
+import ./generic.nix (args // rec {
+  version = "4.13.16";
+  extraMeta.branch = "4.13";
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
+    sha256 = "0cf7prqzl1ajbgl98w0symdyn0k5wl5xaf1l5ldgy6l083yg69dh";
+  };
+} // (args.argsOverride or {}))
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fd429f8645d..f549e571abe 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12576,6 +12576,22 @@ with pkgs;
       ];
   };
 
+  linux_4_13 = callPackage ../os-specific/linux/kernel/linux-4.13.nix {
+    kernelPatches =
+      [ kernelPatches.bridge_stp_helper
+        kernelPatches.p9_fixes
+        # See pkgs/os-specific/linux/kernel/cpu-cgroup-v2-patches/README.md
+        # when adding a new linux version
+        kernelPatches.cpu-cgroup-v2."4.11"
+        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_4_14 = callPackage ../os-specific/linux/kernel/linux-4.14.nix {
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
@@ -12787,6 +12803,7 @@ with pkgs;
   linuxPackages_rpi = linuxPackagesFor pkgs.linux_rpi;
   linuxPackages_4_4 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_4);
   linuxPackages_4_9 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_9);
+  linuxPackages_4_13 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_13);
   linuxPackages_4_14 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_14);
   # Don't forget to update linuxPackages_latest!