Merge pull request #298103 from alois31/kernel-config-duplicates

  # configuration items have to be part of a subattrs

  flattenKConf =  nested: mapAttrs (_: head) (zipAttrs (attrValues nested));

  flattenKConf = nested: mapAttrs (name: values: if length values == 1 then head values else throw "duplicate kernel configuration option: ${name}") (zipAttrs (attrValues nested));

  whenPlatformHasEBPFJit =

    mkIf (stdenv.hostPlatform.isAarch32 ||

      # Enable CPU energy model for scheduling

      ENERGY_MODEL                     = whenAtLeast "5.0" yes;

      # Enable scheduling stats collection

      SCHEDSTATS                       = yes;

      # Enable thermal interface netlink API

      THERMAL_NETLINK                  = whenAtLeast "5.9" yes;

      whenHasDevicePrivate = mkIf (!stdenv.isx86_32 && versionAtLeast version "5.1");

    in {

      DRM_LEGACY = whenOlder "6.8" no;

      DRM_SIMPLEDRM = yes;

      NOUVEAU_LEGACY_CTX_SUPPORT = whenBetween "5.2" "6.3" no;

      NOTIFIER_ERROR_INJECTION = option no;

      RCU_PERF_TEST            = whenOlder "5.9" no;

      RCU_SCALE_TEST           = whenAtLeast "5.10" no;

      RCU_TORTURE_TEST         = option no;

      TEST_ASYNC_DRIVER_PROBE  = option no;

      WW_MUTEX_SELFTEST        = option no;

      XZ_DEC_TEST              = option no;

      # Removed on 5.17 as it was unused

      # upstream: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a4ee518185e902758191d968600399f3bc2be31

      CLEANCACHE = whenOlder "5.17" (option yes);

      CRASH_DUMP = option no;

      FSCACHE_STATS = yes;