linux: Add 5.2

Update linuxPackages_latest to 5.2

pkgs/os-specific/linux/kernel/linux-5.2.nix

@@ -0,0 +1,18 @@
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+
+with stdenv.lib;
+
+buildLinux (args // rec {
+  version = "5.2";
+
+  # modDirVersion needs to be x.y.z, will automatically add .0 if needed
+  modDirVersion = if (modDirVersionArg == null) then concatStrings (intersperse "." (take 3 (splitString "." "${version}.0"))) else modDirVersionArg;
+
+  # branchVersion needs to be x.y
+  extraMeta.branch = concatStrings (intersperse "." (take 2 (splitString "." version)));
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
+    sha256 = "1ry11b5sc20jh7flnp94m20627jzl3l09rzmfjsk3a71fbv6dbal";
+  };
+} // (args.argsOverride or {}))

pkgs/top-level/all-packages.nix

@@ -15360,6 +15360,14 @@ in
       ];
   };
 
+  linux_5_2 = callPackage ../os-specific/linux/kernel/linux-5.2.nix {
+    kernelPatches =
+      [ kernelPatches.bridge_stp_helper
+        kernelPatches.modinst_arg_list_too_long
+        kernelPatches.export_kernel_fpu_functions
+      ];
+  };
+
   linux_testing = callPackage ../os-specific/linux/kernel/linux-testing.nix {
     kernelPatches = [
       kernelPatches.bridge_stp_helper
@@ -15551,7 +15559,7 @@ in
   linux = linuxPackages.kernel;
 
   # Update this when adding the newest kernel major version!
-  linuxPackages_latest = linuxPackages_5_1;
+  linuxPackages_latest = linuxPackages_5_2;
   linux_latest = linuxPackages_latest.kernel;
 
   # Build the kernel modules for the some of the kernels.
@@ -15562,6 +15570,7 @@ in
   linuxPackages_4_14 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_14);
   linuxPackages_4_19 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_4_19);
   linuxPackages_5_1 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_5_1);
+  linuxPackages_5_2 = recurseIntoAttrs (linuxPackagesFor pkgs.linux_5_2);
 
   # When adding to this list:
   # - Update linuxPackages_latest to the latest version