linux: 4.9.65 -> 4.9.66

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

···
 { stdenv, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "4.9.65";
+  version = "4.9.66";
   extraMeta.branch = "4.9";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "15a8a7p6i2dgiglps22cwsy5gsfkc39fy4jzvhjwz8s9fn3p1fi4";
+    sha256 = "0fwnmba25ww5q4asfz3mqdmbrhfdfgid388701h4xy20pwpjndsy";
   };
 } // (args.argsOverride or {}))

pkgs/top-level/all-packages.nix

···
   linux_4_9 = callPackage ../os-specific/linux/kernel/linux-4.9.nix {
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
-        kernelPatches.p9_fixes
         kernelPatches.cpu-cgroup-v2."4.9"
         kernelPatches.modinst_arg_list_too_long
       ]