{ lib, buildLinux, fetchurl, kernelPatches ? [ ], structuredExtraConfig ? { }, extraMeta ? { }, argsOverride ? { }, ... }@args: let version = "5.4.290-rt96"; # updated by ./update-rt.sh branch = lib.versions.majorMinor version; kversion = builtins.elemAt (lib.splitString "-" version) 0; in buildLinux ( args // { inherit version; pname = "linux-rt"; src = fetchurl { url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz"; sha256 = "0mm4q8f6kbqddy4zaxjf5xyqpnla5qprvsf7v3vq01gmlzr3rivc"; }; kernelPatches = let rt-patch = { name = "rt"; patch = fetchurl { url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz"; sha256 = "1vcyz46n6yznbil5lqiqrn9vrdf0cpva7br9fj7lrr958yjv7101"; }; }; in [ rt-patch ] ++ kernelPatches; structuredExtraConfig = with lib.kernel; { PREEMPT_RT = yes; # Fix error: unused option: PREEMPT_RT. EXPERT = yes; # PREEMPT_RT depends on it (in kernel/Kconfig.preempt) # Fix error: option not set correctly: PREEMPT_VOLUNTARY (wanted 'y', got 'n'). PREEMPT_VOLUNTARY = lib.mkForce no; # PREEMPT_RT deselects it. # Fix error: unused option: RT_GROUP_SCHED. RT_GROUP_SCHED = lib.mkForce (option no); # Removed by sched-disable-rt-group-sched-on-rt.patch. } // structuredExtraConfig; extraMeta = extraMeta // { inherit branch; }; } // argsOverride )