linux_testing: 6.5-rc7 -> 6.6-rc1

rc1: https://lwn.net/Articles/944122/

pkgs/os-specific/linux/kernel/common-config.nix

@@ -603,8 +603,8 @@ let
 
     microcode = {
       MICROCODE       = yes;
-      MICROCODE_INTEL = yes;
-      MICROCODE_AMD   = yes;
+      MICROCODE_INTEL = whenOlder "6.6" yes;
+      MICROCODE_AMD   = whenOlder "6.6" yes;
       # Write Back Throttling
       # https://lwn.net/Articles/682582/
       # https://bugzilla.kernel.org/show_bug.cgi?id=12309#c655
@@ -913,7 +913,7 @@ let
       SECCOMP             = yes; # used by systemd >= 231
       SECCOMP_FILTER      = yes; # ditto
       POSIX_MQUEUE        = yes;
-      FRONTSWAP           = yes;
+      FRONTSWAP           = whenOlder "6.6" yes;
       FUSION              = yes; # Fusion MPT device support
       IDE                 = whenOlder "5.14" no; # deprecated IDE support, removed in 5.14
       IDLE_PAGE_TRACKING  = yes;

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

@@ -3,7 +3,7 @@
 with lib;
 
 buildLinux (args // rec {
-  version = "6.5-rc7";
+  version = "6.6-rc1";
   extraMeta.branch = lib.versions.majorMinor version;
 
   # modDirVersion needs to be x.y.z, will always add .0
@@ -11,7 +11,7 @@ buildLinux (args // rec {
 
   src = fetchzip {
     url = "https://git.kernel.org/torvalds/t/linux-${version}.tar.gz";
-    hash = "sha256-5rIcyXN54o9P+RxHZkI/BTO2Ox6uJ0Fi9NVcrN1HczQ=";
+    hash = "sha256-DRai7HhWVtRB0GiRCvCv2JM2TFKRsZ60ohD6GW0b8As=";
   };
 
   # Should the testing kernels ever be built on Hydra?

pkgs/os-specific/linux/kernel/manual-config.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, buildPackages, runCommand, nettools, bc, bison, flex, perl, rsync, gmp, libmpc, mpfr, openssl
-, libelf, cpio, elfutils, zstd, python3Minimal, zlib, pahole
+, libelf, cpio, elfutils, zstd, python3Minimal, zlib, pahole, kmod
 , fetchpatch
 }:
 
@@ -271,7 +271,7 @@ let
         make modules_install $makeFlags "''${makeFlagsArray[@]}" \
           $installFlags "''${installFlagsArray[@]}"
         unlink $out/lib/modules/${modDirVersion}/build
-        unlink $out/lib/modules/${modDirVersion}/source
+        rm -f $out/lib/modules/${modDirVersion}/source
 
         mkdir -p $dev/lib/modules/${modDirVersion}/{build,source}
 
@@ -376,6 +376,7 @@ stdenv.mkDerivation ((drvAttrs config stdenv.hostPlatform.linux-kernel kernelPat
       ++ optionals (lib.versionAtLeast version "4.16") [ bison flex ]
       ++ optionals (lib.versionAtLeast version "5.2")  [ cpio pahole zlib ]
       ++ optional  (lib.versionAtLeast version "5.8")  elfutils
+      ++ optional  (lib.versionAtLeast version "6.6")  kmod
       ;
 
   hardeningDisable = [ "bindnow" "format" "fortify" "stackprotector" "pic" "pie" ];